CY8C32

PRELIMINARY PSoC® 3: CY8C32 Family Datasheet Programmable System-on-Chip (PSoC®) General Description With its unique array of configurable blocks, PSoC® 3 is a true ystem level solution providing microcontroller unit (MCU), memory, analog, and digital peripheral functions in a single chip. The CY8C32 family offers a modern method of signal acquisition, signal processing, and control with high accuracy, high bandwidth, and high flexibility. Analog capability spans the range from thermocouples (near DC voltages) to ultrasonic signals. The CY8C32 family can handle dozens of data acquisition channels and analog inputs on every general-purpose input/output (GPIO) pin. The CY8C32 family is also a high-performance configurable digital system with some part numbers including interfaces such as USB, and multimaster inter-integrated circuit (I2C). In addition to communication interfaces, the CY8C32 family has an easy to configure logic array, flexible routing to all I/O pins, and a high-performance single cycle 8051 microprocessor core. You can easily create system-level designs using a rich library of prebuilt components and boolean primitives using PSoC Creator™, a hierarchical schematic design entry tool. The CY8C32 family provides unparalleled opportunities for analog and digital bill of materials integration while easily accommodating last minute design changes through simple firmware updates. Features Single cycle 8051 CPU core DC to 50 MHz operation Multiply and divide instructions Flash program memory, up to 64 KB, 100,000 write cycles, 20 years retention, and multiple security features Up to 8-KB flash error correcting code (ECC) or configuration storage Up to 8 KB SRAM Up to 2 KB electrically erasable programmable read-only memory (EEPROM), 1 M cycles, and 20 years retention 24-channel direct memory access (DMA) with multilayer AHB[1] bus access • Programmable chained descriptors and priorities • High bandwidth 32-bit transfer support Low voltage, ultra low-power Wide operating voltage range: 0.5 V to 5.5 V High efficiency boost regulator from 0.5-V through 1.8-V to 5.0-V output 0.8 mA at 3 MHz, 1.2 mA at 6 MHz, and 6.6 mA at 50 MHz Low-power modes including: • 1-µA sleep mode with real-time clock (RTC) and low-voltage detect (LVD) interrupt • 200-nA hibernate mode with RAM retention Versatile I/O system 28 to 72 I/O (62 GPIOs, eight special input/outputs (SIO), two USBIOs[2]) Any GPIO to any digital or analog peripheral routability LCD direct drive from any GPIO, up to 46×16 segments[2] CapSense® support from any GPIO[3] 1.2-V to 5.5-V I/O interface voltages, up to four domains Maskable, independent IRQ on any pin or port Schmitt-trigger transistor-transistor logic (TTL) inputs All GPIO configurable as open drain high/low, pull-up/pull-down, High Z, or strong output Configurable GPIO pin state at power-on reset (POR) 25 mA sink on SIO Digital peripherals 16 to 24 programmable PLD based universal digital blocks (UDB) Full-speed (FS) USB 2.0 12 Mbps using internal oscillator[2] Up to four 16-bit configurable timer, counter, and PWM blocks Library of standard peripherals • 8-, 16-, 24-, and 32-bit timers, counters, and PWMs • Serial peripheral interface (SPI), universal asynchronous transmitter receiver (UART), and I2C • Many others available in catalog Library of advanced peripherals • Cyclic redundancy check (CRC) • Pseudo random sequence (PRS) generator • Local interconnect network (LIN) bus 2.0 • Quadrature decoder Analog peripherals (1.71 V ≤ VDDA ≤ 5.5 V) 1.024 V ±0.9-percent internal voltage reference across –40°C to +85°C (14 ppm/°C) Configurable delta-sigma ADC with 8- to12-bit resolution • Programmable gain stage: ×0.25 to ×16 • 12-bit mode, 192-ksps, 66-dB signal to noise and distortion ratio (SINAD), ±1-bit INL/DNL One 8-bit, 8-Msps IDAC or 1-Msps VDAC Two comparators with 95 ns response time CapSense support Programming, debug, and trace JTAG (4-wire), serial wire debug (SWD) (2-wire), and single wire viewer (SWV) interfaces Eight address and one data breakpoint 4-KB instruction trace buffer Bootloader programming supportable through I2C, SPI, UART, USB, and other interfaces Precision, programmable clocking 3- to 24-MHz internal oscillator over full temperature and voltage range 4- to 33-MHz crystal oscillator for crystal PPM accuracy Internal PLL clock generation up to 50 MHz 32.768-kHz watch crystal oscillator Low-power internal oscillator at 1, 33, and 100 kHz Temperature and packaging –40°C to +85°C degrees industrial temperature 48-pin SSOP, 48-pin QFN, 68-pin QFN, and 100-pin TQFP package options Notes 1. AHB – AMBA (advanced microcontroller bus architecture) high-performance bus, an ARM data transfer bus 2. This feature on select devices only. See Ordering Information on page 88 for details. 3. GPIOs with opamp outputs are not recommended for use with CapSense. Cypress Semiconductor Corporation Document Number: 001-56955 Rev. *H • 198 Champion Court • San Jose CA 95134-1709 , • 408-943-2600 Revised December 10, 2010 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet Contents 1. ARCHITECTURAL OVERVIEW ......................................... 3 2. PINOUTS ............................................................................. 5 3. PIN DESCRIPTIONS ......................................................... 10 4. CPU ................................................................................... 11 4.1 8051 CPU ................................................................. 11 4.2 Addressing Modes .................................................... 11 4.3 Instruction Set .......................................................... 12 4.4 DMA and PHUB ....................................................... 16 4.5 Interrupt Controller ................................................... 18 5. MEMORY .......................................................................... 19 5.1 Static RAM ............................................................... 19 5.2 Flash Program Memory ............................................ 19 5.3 Flash Security ........................................................... 19 5.4 EEPROM .................................................................. 19 5.5 External Memory Interface ....................................... 19 5.6 Memory Map ............................................................ 20 6. SYSTEM INTEGRATION .................................................. 22 6.1 Clocking System ....................................................... 22 6.2 Power System .......................................................... 25 6.3 Reset ........................................................................ 28 6.4 I/O System and Routing ........................................... 29 7. DIGITAL SUBSYSTEM ..................................................... 35 7.1 Example Peripherals ................................................ 36 7.2 Universal Digital Block .............................................. 39 7.3 UDB Array Description ............................................. 42 7.4 DSI Routing Interface Description ............................ 42 7.5 USB .......................................................................... 44 7.6 Timers, Counters, and PWMs .................................. 44 7.7 I2C ............................................................................ 44 8. ANALOG SUBSYSTEM .................................................... 45 8.1 Analog Routing ......................................................... 46 8.2 Delta-sigma ADC ...................................................... 48 8.3 Comparators ............................................................. 49 8.4 LCD Direct Drive ...................................................... 50 8.5 CapSense ................................................................. 51 8.6 Temp Sensor ............................................................ 51 8.7 DAC .......................................................................... 52 9. PROGRAMMING, DEBUG INTERFACES, RESOURCES ................................................................... 52 9.1 JTAG Interface ......................................................... 53 9.2 Serial Wire Debug Interface ..................................... 53 9.3 Debug Features ........................................................ 53 9.4 Trace Features ......................................................... 53 9.5 Single Wire Viewer Interface .................................... 53 9.6 Programming Features ............................................. 53 9.7 Device Security ........................................................ 53 10. DEVELOPMENT SUPPORT ........................................... 54 10.1 Documentation ....................................................... 54 10.2 Online ..................................................................... 54 10.3 Tools ....................................................................... 54 11. ELECTRICAL SPECIFICATIONS ................................... 55 11.1 Absolute Maximum Ratings .................................... 55 11.2 Device Level Specifications .................................... 56 11.3 Power Regulators ................................................... 59 11.4 Inputs and Outputs ................................................. 61 11.5 Analog Peripherals ................................................. 65 11.6 Digital Peripherals .................................................. 75 11.7 Memory .................................................................. 79 11.8 PSoC System Resources ....................................... 84 11.9 Clocking .................................................................. 86 12. ORDERING INFORMATION ........................................... 89 12.1 Part Numbering Conventions ................................. 91 13. PACKAGING ................................................................... 92 14. ACRONYMS .................................................................... 95 15. REFERENCE DOCUMENTS .......................................... 96 16. DOCUMENT CONVENTIONS ........................................ 97 16.1 Units of Measure .................................................... 97 17. REVISION HISTORY ...................................................... 98 18. SALES, SOLUTIONS, AND LEGAL INFORMATION .. 101 Document Number: 001-56955 Rev. *H Page 2 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet 1. Architectural Overview Introducing the CY8C32 family of ultra low-power, flash Programmable System-on-Chip (PSoC®) devices, part of a scalable 8-bit PSoC 3 and 32-bit PSoC 5 platform. The CY8C32 family provides configurable blocks of analog, digital, and interconnect circuitry around a CPU subsystem. The combination of a CPU with a flexible analog subsystem, digital subsystem, routing, and I/O enables a high level of integration in a wide variety of consumer, industrial, and medical applications. Figure 1-1. Simplified Block Diagram Analog Interconnect Digital Interconnect SIO GPIOs Usage Example for UDB Sequencer 4- 33 MHz ( Optional ) System Wide Resources Xtal Osc Digital System Universal Digital Block Array ( 24 x UDB) 8- Bit Timer UDB Quadrature Decoder UDB 16- Bit PWM UDB 16- Bit PRS UDB UDB UDB I2C Master / Slave 22 Ω UDB UDB 8- Bit Timer Logic UDB UDB UDB UDB I2C Slave UDB UDB 8- Bit SPI 12- Bit SPI UDB UDB GPIOs UDB UDB IMO 4x Timer Counter PWM FS USB 2.0 USB PHY Clock Tree Logic UDB UART UDB UDB 12- Bit PWM UDB UDB UDB GPIOs 32. 68 KHz 7 ( Optional ) RTC Timer System Bus WDT and Wake GPIOs Memory System EEPROM SRAM CPU System 8051 or Cortex M3 CPU Interrupt Controller Program & Debug Program Debug & Trace GPIOs EMIF ILO Clocking System FLASH PHUB DMA Boundary Scan GPIOs SIOs Power Management System Analog System LCD Direct Drive POR and LVD Sleep Power 1.71 to 5.5V 1.8V LDO SMP Temperature Sensor CapSense ADC Del Sig ADC DAC 2x CMP + GPIOs - 0. 5 to 5.5V ( Optional ) Figure 1-1 illustrates the major components of the CY8C32 family. They are: 8051 CPU subsystem Nonvolatile subsystem Programming, debug, and test subsystem Inputs and outputs Clocking Power Digital subsystem Analog subsystem Document Number: 001-56955 Rev. *H PSoC’s digital subsystem provides half of its unique configurability. It connects a digital signal from any peripheral to any pin through the Digital System Interconnect (DSI). It also provides functional flexibility through an array of small, fast, low-power UDBs. PSoC Creator provides a library of prebuilt and tested standard digital peripherals (UART, SPI, LIN, PRS, CRC, timer, counter, PWM, AND, OR, and so on) that are mapped to the UDB array. You can also easily create a digital circuit using boolean primitives by means of graphical design entry. Each UDB contains programmable array logic (PAL)/programmable logic device (PLD) functionality, together with a small state machine engine to support a wide variety of peripherals. Page 3 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet In addition to the flexibility of the UDB array, PSoC also provides configurable digital blocks targeted at specific functions. For the CY8C32 family these blocks can include four 16-bit timers, counters, and PWM blocks; I2C slave, master, and multimaster; and FS USB. For more details on the peripherals see the “Example Peripherals” section on page 36 of this datasheet. For information on UDBs, DSI, and other digital blocks, see the “Digital Subsystem” section on page 35 of this datasheet. PSoC’s analog subsystem is the second half of its unique configurability. All analog performance is based on a highly accurate absolute voltage reference with less than 0.9-percent error over temperature and voltage. The configurable analog subsystem includes: Analog muxes Comparators Voltage references ADC DAC All GPIO pins can route analog signals into and out of the device using the internal analog bus. This allows the device to interface up to 62 discrete analog signals. The heart of the analog subsystem is a fast, accurate, configurable delta-sigma ADC with these features: Less than 100 µV offset A gain error of 0.2 percent INL less than ±1 LSB DNL less than ±1 LSB SINAD better than 66 dB This converter addresses a wide variety of precision analog applications, including some of the most demanding sensors. A high-speed voltage or current DAC supports 8-bit output signals at an update rate of 8 Msps in current DAC (IDAC) and 1 Msps in voltage DAC (VDAC). It can be routed out of any GPIO pin. You can create higher resolution voltage PWM DAC outputs using the UDB array. This can be used to create a pulse width modulated (PWM) DAC of up to 10 bits, at up to 48 kHz. The digital DACs in each UDB support PWM, PRS, or delta-sigma algorithms with programmable widths. In addition to the ADC and DAC, the analog subsystem provides multiple comparators. See the “Analog Subsystem” section on page 45 of this datasheet for more details. PSoC’s 8051 CPU subsystem is built around a single cycle pipelined 8051 8-bit processor running at up to 50 MHz. The CPU subsystem includes a programmable nested vector interrupt controller, DMA controller, and RAM. PSoC’s nested vector interrupt controller provides low latency by allowing the CPU to vector directly to the first address of the interrupt service routine, bypassing the jump instruction required by other architectures. The DMA controller enables peripherals to exchange data without CPU involvement. This allows the CPU to run slower (saving power) or use those CPU cycles to improve the performance of firmware algorithms. The single cycle 8051 CPU runs ten times faster than a standard 8051 processor. The processor speed itself is configurable, allowing you to tune active power consumption for specific applications. PSoC’s nonvolatile subsystem consists of flash, byte-writeable EEPROM, and nonvolatile configuration options. It provides up to 64 KB of on-chip flash. The CPU can reprogram individual blocks of flash, enabling bootloaders. You can enable an ECC for high reliability applications. A powerful and flexible protection model secures the user's sensitive information, allowing selective memory block locking for read and write protection. Up to 2 KB of byte-writeable EEPROM is available on-chip to store application data. Additionally, selected configuration options such as boot speed and pin drive mode are stored in nonvolatile memory. This allows settings to activate immediately after POR. The three types of PSoC I/O are extremely flexible. All I/Os have many drive modes that are set at POR. PSoC also provides up to four I/O voltage domains through the VDDIO pins. Every GPIO has analog I/O, LCD drive[4], CapSense[5], flexible interrupt generation, slew rate control, and digital I/O capability. The SIOs on PSoC allow Voh to be set independently of VDDIO when used as outputs. When SIOs are in input mode they are high impedance. This is true even when the device is not powered or when the pin voltage goes above the supply voltage. This makes the SIO ideally suited for use on an I2C bus where the PSoC may not be powered when other devices on the bus are. The SIO pins also have high current sink capability for applications such as LED drives. The programmable input threshold feature of the SIO can be used to make the SIO function as a general purpose analog comparator. For devices with FS USB the USB physical interface is also provided (USBIO). When not using USB these pins may also be used for limited digital functionality and device programming. All of the features of the PSoC I/Os are covered in detail in the “I/O System and Routing” section on page 29 of this datasheet. The PSoC device incorporates flexible internal clock generators, designed for high stability and factory trimmed for high accuracy. The Internal Main Oscillator (IMO) is the master clock base for the system, and has 1-percent accuracy at 3 MHz. The IMO can be configured to run from 3 MHz up to 24 MHz. Multiple clock derivatives can be generated from the main clock frequency to meet application needs. The device provides a PLL to generate system clock frequencies up to 50 MHz from the IMO, external crystal, or external reference clock. It also contains a separate, very low-power Internal Low-Speed Oscillator (ILO) for the sleep and watchdog timers. A 32.768-kHz external watch crystal is also supported for use in RTC applications. The clocks, together with programmable clock dividers, provide the flexibility to integrate most timing requirements. The CY8C32 family supports a wide supply operating range from 1.71 V to 5.5 V. This allows operation from regulated supplies such as 1.8 ± 5 percent, 2.5 V ±10 percent, 3.3 V ± 10 percent, or 5.0 V ± 10 percent, or directly from a wide range of battery types. In addition, it provides an integrated high efficiency synchronous boost converter that can power the device from supply voltages as low as 0.5 V. Notes 4. This feature on select devices only. See Ordering Information on page 88 for details. 5. GPIOs with opamp outputs are not recommended for use with CapSense. Document Number: 001-56955 Rev. *H Page 4 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet This enables the device to be powered directly from a single battery or solar cell. In addition, you can use the boost converter to generate other voltages required by the device, such as a 3.3-V supply for LCD glass drive. The boost’s output is available on the VBOOST pin, allowing other devices in the application to be powered from the PSoC. PSoC supports a wide range of low-power modes. These include a 200-nA hibernate mode with RAM retention and a 1-µA sleep mode with RTC. In the second mode the optional 32.768-kHz watch crystal runs continuously and maintains an accurate RTC. Power to all major functional blocks, including the programmable digital and analog peripherals, can be controlled independently by firmware. This allows low-power background processing when some peripherals are not in use. This, in turn, provides a total device current of only 1.2 mA when the CPU is running at 6 MHz, or 0.8 mA running at 3 MHz. The details of the PSoC power modes are covered in the “Power System” section on page 25 of this datasheet. PSoC uses JTAG (4-wire) or SWD (2-wire) interfaces for programming, debug, and test. The 1-wire SWV may also be used for “printf” style debugging. By combining SWD and SWV, you can implement a full debugging interface with just three pins. Using these standard interfaces enables you to debug or program the PSoC with a variety of hardware solutions from Cypress or third party vendors. PSoC supports on-chip break points and 4-KB instruction and data race memory for debug. Details of the programming, test, and debugging interfaces are discussed in the “Programming, Debug Interfaces, Resources” section on page 52 of this datasheet. 2. Pinouts The Vddio pin that supplies a particular set of pins is indicated by the black lines drawn on the pinout diagrams in Figure 2-1 through Figure 2-4. Using the Vddio pins, a single PSoC can support multiple interface voltage levels, eliminating the need for off-chip level shifters. Each Vddio may sink up to 100 mA total to its associated I/O pins. On the 68 pin and 100 pin devices each set of Vddio associated pins may sink up to 100 mA. The 48-pin device may sink up to 100 mA total for all Vddio0 plus Vddio2 associated I/O pins and 100 mA total for all Vddio1 plus Vddio3 associated I/O pins. Figure 2-1. 48-pin SSOP Part Pinout (SIO) P12[2] (SIO) P12[3] (GPIO ) P0[0] (GPIO ) P0[1] (GPIO ) P0[2] (Extref0, GPIO ) P0[3] Vddio0 (GPIO ) P0[4] (GPIO ) P0[5] (IDAC0, GPIO ) P0[6] (GPIO ) P0[7] Vccd Vssd Vddd (GPIO ) P2[3] (GPIO ) P2[4] Vddio2 (GPIO ) P2[5] (GPIO ) P2[6] (GPIO ) P2[7] Vssb Ind Vboost Vbat 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 Vdda Vssa Vcca P15[3] (GPIO, kHz XTAL: Xi) P15[2] (GPIO, kHz XTAL: Xo) P12[1] (SIO, I2C1: SDA) P12[0] (SIO, I2C1: SCL) Vddio3 P15[1] (GPIO, M Hz XTAL: Xi) P15[0] (GPIO, M Hz XTAL: Xo) Vccd Vssd Vddd [6] P15[7] (USBIO, D-, SW DCK) [6] P15[6] (USBIO, D+, SW DIO) P1[7] (GPIO) P1[6] (GPIO) Vddio1 P1[5] (GPIO, nTRST) P1[4] (GPIO, TDI) P1[3] (GPIO, TDO, SW V) P1[2] (GPIO, configurable XRES) P1[1] (GPIO, TCK, SW DCK) P1[0] (GPIO, TM S, SW DIO) Lines show Vddio to I/O supply association SSOP Note 6. Pins are Do Not Use (DNU) on devices without USB. The pin must be left floating. Document Number: 001-56955 Rev. *H Page 5 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet Figure 2-2. 48-pin QFN Part Pinout[8] P2[5] (GPIO) Vddio2 P2[4] (GPIO) P2[3] (GPIO) Vddd Vssd Vccd P0[7] (GPIO) P0[6] (GPIO, IDAC0) P0[5] (GPIO) P0[4] (GPIO) Vddio0 (GPIO) P2[6] (GPIO) P2[7] Vssb Ind Vboost Vbat (GPIO, TMS, SWDIO) P1[0] (GPIO, TCK, SWDCK) P1[1] (GPIO, Configurable XRES) P1[2] (GPIO, TDO, SWV) P1[3] (GPIO, TDI) P1[4] (GPIO, nTRST) P1[5] 48 47 46 45 44 43 42 41 40 39 38 37 Lines show Vddio to I/O supply association 1 2 3 4 5 6 7 8 9 10 11 12 QFN ( Top View ) Notes 7. The center pad on the QFN package should be connected to digital ground (Vssd) for best mechanical, thermal, and electrical performance. If not connected to ground, it should be electrically floated and not connected to any other signal. 8. PPins are Do Not Use (DNU) on devices without USB. The pin must be left floating. Document Number: 001-56955 Rev. *H Vddio1 (GPIO) P1[6] (GPIO) P1[7] [7] (USBIO, D+, SWDIO) P15[6] [7] (USBIO, D-, SWDCK) P15[7] Vddd Vssd Vccd (GPIO, MHz XTAL: Xo) P15[0] (GPIO, MHz XTAL: Xi) P15[1] Vddio3 (SIO, I2C1: SCL) P12[0] 13 14 15 16 17 18 19 20 21 22 23 24 36 35 34 33 32 31 30 29 28 27 26 25 P0[3] (Extref0, GPIO) P0[2] (GPIO) P0[1] (GPIO) P0[0] (GPIO) P12[3] (SIO) P12[2] (SIO) Vdda Vssa Vcca P15[3] (GPIO, kHz XTAL: Xi) P15[2] (GPIO, kHz XTAL: Xo) P12[1] (SIO, I2C1: SDA) Page 6 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet Figure 2-3. 68-pin QFN Part Pinout[10] P0[7] (GPIO) P0[6] (GPIO, IDAC0) P15[5] (GPOI) P15[4] (GPIO) Vddd Vssd Vccd P2[5] (GPIO) Vddio2 P2[4] (GPIO) P2[3] (GPIO) P2[2] (GPIO) P2[1] (GPIO) P2[0] (GPIO) 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 (GPIO) P2[6] (GPIO) P2[7] (I2C0: SCL, SIO) P12[4] (I2C0: SDA, SIO) P12[5] Vssb Ind Vboost Vbat Vssd XRES (TMS, SWDIO, GPIO) P1[0] (TCK, SWDCK, GPIO) P1[1] (configurable XRES, GPIO) P1[2] (TDO, SWV, GPIO) P1[3] (TDI, GPIO) P1[4] (nTRST, GPIO) P1[5] Vddio1 53 52 P0[5] (GPIO) P0[4] (GPIO) Vddio0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 51 50 Lines show Vddio to I/O supply association 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 31 32 33 34 QFN (Top View) P0[3] (GPIO, Extref0) P0[2] (GPIO) P0[1] (GPIO) P0[0] (GPIO) P12[3] (SIO) P12[2] (SIO) Vssd Vdda Vssa Vcca P15[3] (GPIO, kHz XTAL: Xi) P15[2] (GPIO, kHz XTAL: Xo) P12[1] (SIO, I2C1: SDA) P12[0] (SIO, 12C1: SCL) P3[7] (GPIO) P3[6] (GPIO) Vddio3 18 19 20 21 22 23 24 25 26 27 (MHz XTAL: Xi, GPIO) P15[1] (GPIO) P3[0] (GPIO) P3[1] (Extref1, GPIO) P3[2] 28 29 30 (GPIO) P3[3] (GPIO) P3[4] (GPIO) P1[6] (GPIO) P1[7] (SIO) P12[6] (SIO) P12[7] (USBIO, D+, SWDIO) P15[6] (USBIO, D-, SWDCK) P15[7] Notes 9. Pins are Do Not Use (DNU) on devices without USB. The pin must be left floating. 10. The center pad on the QFN package should be connected to digital ground (Vssd) for best mechanical, thermal, and electrical performance. If not connected to ground, it should be electrically floated and not connected to any other signal. Document Number: 001-56955 Rev. *H Page 7 of 100 Vddd Vssd Vccd (MHz XTAL: Xo, GPIO) P15[0] (GPIO) P3[5] [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet Figure 2-4. 100-pin TQFP Part Pinout P0[6] (GPIO, IDAC0) P0[5] (GPIO) P0[4] (GPIO) 77 76 (GPIO) P3[5] Vddio3 49 50 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 Vddio0 P0[3] (GPIO,Extref0) P0[2] (GPIO) P0[1] (GPIO) P0[0] (GPIO) P4[1] (GPIO) P4[0] (GPIO) P12[3] (SIO) P12[2] (SIO) Vssd Vdda Vssa Vcca NC NC NC NC NC NC P15[3] (GPIO, kHz XTAL: Xi) P15[2] (GPIO, kHz XTAL: Xo) P12[1] (SIO, I2C1: SDA) P12[0] (SIO, I2C1: SCL) P3[7] (GPIO) P3[6] (GPIO) P2[1] (GPIO) P2[0] (GPIO) P15[5] (GPIO) P15[4] (GPIO) P6[3] (GPIO) P6[2] (GPIO) P6[1] (GPIO) P6[0] (GPIO) P2[4] (GPIO) P2[3] (GPIO) P2[2] (GPIO) Vccd P4[7] (GPIO) P4[6] (GPIO) 100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 46 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 (GPIO) P5[5] (GPIO) P5[6] (GPIO) P5[7] [11] (USBIO, D+, SWDIO) P15[6] NC NC (MHz XTAL: Xo, GPIO) P15[0] (MHz XTAL: Xi, GPIO) P15[1] (GPIO) P1[6] (GPIO) P1[7] (SIO) P12[6] (SIO) P12[7] (GPIO) P5[4] Figure 2-5 and Figure 2-6 show an example schematic and an example PCB layout, for the 100-pin TQFP part, for optimal analog performance on a two layer board. The two pins labeled Vddd must be connected together. The two pins labeled Vccd must be connected together, with capacitance added, as shown in Figure 2-5 and Power System on page 25. The trace between the two Vccd pins should be as short as possible. The two pins labeled Vssd must be connected together. Note 11. Pins are Do Not Use (DNU) on devices without USB. The pin must be left floating. Document Number: 001-56955 Rev. *H Page 8 of 100 [11] (USBIO, D-, SWDCK) P15[7] Vddd Vssd Vccd (GPIO) P3[0] (GPIO) P3[1] (Extref1, GPIO) P3[2] (GPIO) P3[3] (GPIO) P3[4] Vddio1 47 48 (GPIO) P2[5] (GPIO) P2[6] (GPIO) P2[7] (I2C0: SCL, SIO) P12[4] (I2C0: SDA, SIO) P12[5] (GPIO) P6[4] (GPIO) P6[5] (GPIO) P6[6] (GPIO) P6[7] Vssb Ind Vboost Vbat Vssd XRES (GPIO) P5[0] (GPIO) P5[1] (GPIO) P5[2] (GPIO) P5[3] (TMS, SWDIO, GPIO) P1[0] (TCK, SWDCK, GPIO) P1[1] (configurable XRES, GPIO) P1[2] (TDO, SWV, GPIO) P1[3] (TDI, GPIO) P1[4] (nTRST, GPIO) P1[5] 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Lines show Vddio to I/O supply association TQFP 79 78 P4[5] (GPIO) P4[4] (GPIO) P4[3] (GPIO) P4[2] (GPIO) P0[7] (GPIO) Vddio2 Vddd Vssd [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet Figure 2-5. Example Schematic for 100-pin TQFP Part with Power Connections Vddd Vddd Vddd C1 1 uF C2 0.1 uF Vccd C6 0.1 uF Vssd Vddd 100 99 98 97 96 95 94 93 92 91 90 89 Vddd 88 87 Vssd 86 85 84 83 82 81 80 79 78 77 76 Vssd Vssd U2 CY8C55xx Vddio2 P2[4] P2[3] P2[2] P2[1] P2[0] P15[5] P15[4] P6[3] P6[2] P6[1] P6[0] Vddd Vssd Vccd P4[7] P4[6] P4[5] P4[4] P4[3] P4[2] IDAC2, P0[7] IDAC0, P0[6] OA2-, P0[5] OA2+, P0[4] Vddd 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 C8 0.1 uF Vssd Vssd Vssd Vdda Vssa Vcca C9 1 uF Vdda Vssd Vssd 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 P32 47 48 49 50 Vddd Vddio1 P1[6] P1[7] P12[6], SIO P12[7], SIO P5[4] P5[5] P5[6] P5[7] USB D+, P15[6] USB D-, P15[7] Vddd Vssd Vccd NC NC P15[0], MHzXout P15[1], MHzXin P3[0], IDAC1 P3[1], IDAC3 P3[2], OA3-, REF1 P3[3], OA3+ P3[4], OA1P3[5], OA1+ Vddio3 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 P2[5] P2[6] P2[7] P12[4], SIO P12[5], SIO P6[4] P6[5] P6[6] P6[7] Vssb Ind Vboost Vbat Vssd XRES P5[0] P5[1] P5[2] P5[3] P1[0], SWIO, TMS P1[1], SWDIO, TCK P1[2] P1[3], SWV, TDO P1[4], TDI P1[5], nTRST Vddio0 OA0-, REF0, P0[3] OA0+, P0[2] OA0out, P0[1] OA2out, P0[0] P4[1] P4[0] SIO, P12[3] SIO, P12[2] Vssd Vdda Vssa Vcca NC NC NC NC NC NC kHzXin, P15[3] kHzXout, P15[2] SIO, P12[1] SIO, P12[0] OA3out, P3[7] OA1out, P3[6] C17 1 uF Vssa Vdda C10 0.1 uF Vssa Vddd C11 0.1 uF C14 0.1 uF Vssd Vssd Vddd Vccd C12 0.1 uF Vssd C16 0.1 uF C13 10 uF, 6.3 V Vssa C15 1 uF Vssa Vssd Note The two Vccd pins must be connected together with as short a trace as possible. A trace under the device is recommended, as shown in Figure 2-6 on page 10. Document Number: 001-56955 Rev. *H Page 9 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet Figure 2-6. Example PCB Layout for 100-pin TQFP Part for Optimal Analog Performance Vssa Vddd Vssd Vdda Vssd Plane Vssa Plane 3. Pin Descriptions IDAC0 Low resistance output pin for high current DAC (IDAC). nTRST Optional JTAG test reset programming and debug port connection to reset the JTAG connection. SIO Special I/O provides interfaces to the CPU, digital peripherals and interrupts with a programmable high threshold voltage, analog comparator, high sink current, and high impedance state when the device is unpowered. Extref0, Extref1 External reference input to the analog system. GPIO General purpose I/O pin provides interfaces to the CPU, digital peripherals, analog peripherals, interrupts, LCD segment drive, and CapSense. SWDCK Serial wire debug clock programming and debug port connection. I2C0: SCL, I2C1: SCL I2C SCL line providing wake from sleep on an address match. Any I/O pin can be used for I2C SCL if wake from sleep is not required. SWDIO Serial wire debug input and output programming and debug port connection. I2C0: SDA, I2C1: SDA I C SDA line providing wake from sleep on an address match. Any I/O pin can be used for I2C SDA if wake from sleep is not required. 2 SWV. Single wire viewer debug output. TCK JTAG test clock programming and debug port connection. Ind Inductor connection to boost pump. TDI JTAG test data in programming and debug port connection. kHz XTAL: Xo, kHz XTAL: Xi 32.768-kHz crystal oscillator pin. TDO JTAG test data out programming and debug port connection. MHz XTAL: Xo, MHz XTAL: Xi 4- to 33- MHz crystal oscillator pin. TMS JTAG test mode select programming and debug port connection. Document Number: 001-56955 Rev. *H Page 10 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet USBIO, D+ Provides D+ connection directly to a USB 2.0 bus. May be used as a digital I/O pin. Pins are Do Not Use (DNU) on devices without USB. 4. CPU 4.1 8051 CPU The CY8C32 devices use a single cycle 8051 CPU, which is fully compatible with the original MCS-51 instruction set. The CY8C32 family uses a pipelined RISC architecture, which executes most instructions in 1 to 2 cycles to provide peak performance of up to 24 MIPS with an average of 2 cycles per instruction. The single cycle 8051 CPU runs ten times faster than a standard 8051 processor. The 8051 CPU subsystem includes these features: Single cycle 8051 CPU Up to 64 KB of flash memory, up to 2 KB of EEPROM, and up to 8 KB of SRAM Programmable nested vector interrupt controller Direct memory access (DMA) controller Peripheral HUB (PHUB) External memory interface (EMIF) USBIO, D– Provides D– connection directly to a USB 2.0 bus. May be used as a digital I/O pin. Pins are No Connect (NC) on devices without USB. Vboost Power sense connection to boost pump. Vbat Battery supply to boost pump. Vcca Output of analog core regulator and input to analog core. Requires a 1-µF capacitor to VSSA. Regulator output not for external use. Vccd Output of digital core regulator and input to digital core. The two VCCD pins must be shorted together, with the trace between them as short as possible, and a 1-µF capacitor to VSSD; see Power System on page 25. Regulator output not for external use. 4.2 Addressing Modes The following addressing modes are supported by the 8051: Direct Addressing: The operand is specified by a direct 8-bit address field. Only the internal RAM and the SFRs can be accessed using this mode. Indirect Addressing: The instruction specifies the register which contains the address of the operand. The registers R0 or R1 are used to specify the 8-bit address, while the data pointer (DPTR) register is used to specify the 16-bit address. Register Addressing: Certain instructions access one of the registers (R0 to R7) in the specified register bank. These instructions are more efficient because there is no need for an address field. Register Specific Instructions: Some instructions are specific to certain registers. For example, some instructions always act on the accumulator. In this case, there is no need to specify the operand. Immediate Constants: Some instructions carry the value of the constants directly instead of an address. Indexed Addressing: This type of addressing can be used only for a read of the program memory. This mode uses the data pointer as the base and the accumulator value as an offset to read a program memory. Bit Addressing: In this mode, the operand is one of 256 bits. Vdda Supply for all analog peripherals and analog core regulator. Vdda must be the highest voltage present on the device. All other supply pins must be less than or equal to VDDA. Vddd Supply for all digital peripherals and digital core regulator. VDDA must be less than or equal to VDDA. Vssa Ground for all analog peripherals. Vssb Ground connection for boost pump. Vssd Ground for all digital logic and I/O pins. Vddio0, Vddio1, Vddio2, Vddio3 Supply for I/O pins. See pinouts for specific I/O pin to Vddio mapping. Each Vddio must be tied to a valid operating voltage (1.71 V to 5.5 V), and must be less than or equal to Vdda. If the I/O pins associated with Vddio0, Vddio2 or Vddio3 are not used then that Vddio should be tied to ground (Vssd or Vssa). XRES (and configurable XRES) External reset pin. Active low with internal pullup. In 48-pin SSOP parts and 48-pin QFN parts, P1[2] may be configured as XRES. In all other parts the pin is configured as a GPIO. Document Number: 001-56955 Rev. *H Page 11 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet 4.3 Instruction Set The 8051 instruction set is highly optimized for 8-bit handling and Boolean operations. The types of instructions supported include: Arithmetic instructions Logical instructions Data transfer instructions Boolean instructions Program branching instructions 4.3.1 Instruction Set Summary 4.3.1.1 Arithmetic Instructions Arithmetic instructions support the direct, indirect, register, immediate constant, and register-specific instructions. Arithmetic modes are used for addition, subtraction, multiplication, division, increment, and decrement operations. Table 4-1 Table 4-1 on page 12lists the different arithmetic instructions. Table 4-1. Arithmetic Instructions Mnemonic ADD ADD ADD ADD A,Rn A,Direct A,@Ri A,#data Description Add register to accumulator Add direct byte to accumulator Add indirect RAM to accumulator Add immediate data to accumulator Add register to accumulator with carry Add direct byte to accumulator with carry Add indirect RAM to accumulator with carry Add immediate data to accumulator with carry Subtract register from accumulator with borrow Subtract direct byte from accumulator with borrow Subtract indirect RAM from accumulator with borrow Subtract immediate data from accumulator with borrow Increment accumulator Increment register Increment direct byte Increment indirect RAM Decrement accumulator Decrement register Decrement direct byte Decrement indirect RAM Increment data pointer Multiply accumulator and B Divide accumulator by B Decimal adjust accumulator Bytes 1 2 1 2 1 2 1 2 1 2 1 2 1 1 2 1 1 1 2 1 1 1 1 1 Cycles 1 2 2 2 1 2 2 2 1 2 2 2 1 2 3 3 1 2 3 3 1 2 6 3 ADDC A,Rn ADDC A,Direct ADDC A,@Ri ADDC A,#data SUBB A,Rn SUBB A,Direct SUBB A,@Ri SUBB A,#data INC INC INC INC DEC DEC DEC DEC INC MUL DIV DAA A Rn Direct @Ri A Rn Direct @Ri DPTR Document Number: 001-56955 Rev. *H Page 12 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet 4.3.1.2 Logical Instructions The logical instructions perform Boolean operations such as AND, OR, XOR on bytes, rotate of accumulator contents, and swap of nibbles in an accumulator. The Boolean operations on the bytes are performed on the bit-by-bit basis. Table 4-2Table 4-2 on page 13 shows the list of logical instructions and their description. Table 4-2. Logical Instructions Mnemonic ANL ANL ANL ANL ANL ANL ORL ORL ORL ORL ORL ORL XRL XRL XRL XRL XRL XRL CLR CPL RL RLC RR A,Rn A,Direct A,@Ri A,#data Direct, A Direct, #data A,Rn A,Direct A,@Ri A,#data Direct, A Direct, #data A,Rn A,Direct A,@Ri A,#data Direct, A Direct, #data A A A A A Description AND register to accumulator AND direct byte to accumulator AND indirect RAM to accumulator AND immediate data to accumulator AND accumulator to direct byte AND immediate data to direct byte OR register to accumulator OR direct byte to accumulator OR indirect RAM to accumulator OR immediate data to accumulator OR accumulator to direct byte OR immediate data to direct byte XOR register to accumulator XOR direct byte to accumulator XOR indirect RAM to accumulator XOR immediate data to accumulator XOR accumulator to direct byte XOR immediate data to direct byte Clear accumulator Complement accumulator Rotate accumulator left Rotate accumulator left through carry Rotate accumulator right Rotate accumulator right though carry Swap nibbles within accumulator Bytes 1 2 1 2 2 3 1 2 1 2 2 3 1 2 1 2 2 3 1 1 1 1 1 1 1 Cycles 1 2 2 2 3 3 1 2 2 2 3 3 1 2 2 2 3 3 1 1 1 1 1 1 1 RRC A SWAP A Document Number: 001-56955 Rev. *H Page 13 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet 4.3.1.3 Data Transfer Instructions The data transfer instructions are of three types: the core RAM, xdata RAM, and the lookup tables. The core RAM transfer includes transfer between any two core RAM locations or SFRs. These instructions can use direct, indirect, register, and immediate addressing. The xdata RAM transfer includes only the transfer between the accumulator and the xdata RAM location. It can use only indirect addressing. The lookup tables involve nothing but the read of program memory using the Indexed addressing mode. Table 4-3 lists the various data transfer instructions available. 4.3.1.4 Boolean Instructions The 8051 core has a separate bit-addressable memory location. It has 128 bits of bit addressable RAM and a set of SFRs that are bit addressable. The instruction set includes the whole menu of bit operations such as move, set, clear, toggle, OR, and AND instructions and the conditional jump instructions. Table 4-4 on page 15Table 4-4 lists the available Boolean instructions. Table 4-3. Data Transfer Instructions Mnemonic MOV MOV MOV MOV MOV MOV MOV MOV MOV MOV MOV MOV MOV MOV MOV MOV A,Rn A,Direct A,@Ri A,#data Rn,A Rn,Direct Rn, #data Direct, A Direct, Rn Direct, Direct Direct, @Ri Direct, #data @Ri, A @Ri, Direct @Ri, #data DPTR, #data16 Description Move register to accumulator Move direct byte to accumulator Move indirect RAM to accumulator Move immediate data to accumulator Move accumulator to register Move direct byte to register Move immediate data to register Move accumulator to direct byte Move register to direct byte Move direct byte to direct byte Move indirect RAM to direct byte Move immediate data to direct byte Move accumulator to indirect RAM Move direct byte to indirect RAM Move immediate data to indirect RAM Load data pointer with 16-bit constant Move code byte relative to DPTR to accumulator Move code byte relative to PC to accumulator Move external RAM (8-bit) to accumulator Move external RAM (16-bit) to accumulator Move accumulator to external RAM (8-bit) Move accumulator to external RAM (16-bit) Push direct byte onto stack Pop direct byte from stack Exchange register with accumulator Exchange direct byte with accumulator Exchange indirect RAM with accumulator Exchange low order indirect digit RAM with accumulator Bytes 1 2 1 2 1 2 2 2 2 3 2 3 1 2 2 3 1 1 1 1 1 1 2 2 1 2 1 1 Cycles 1 2 2 2 1 3 2 2 2 3 3 3 2 3 2 3 5 4 4 3 5 4 3 2 2 3 3 3 MOVC A, @A+DPTR MOVC A, @A + PC MOVX A,@Ri MOVX A, @DPTR MOVX @Ri, A MOVX @DPTR, A PUSH Direct POP XCH XCH XCH Direct A, Rn A, Direct A, @Ri XCHD A, @Ri Document Number: 001-56955 Rev. *H Page 14 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet Table 4-4. Boolean Instructions Mnemonic CLR CLR C bit Clear carry Clear direct bit Set carry Set direct bit Complement carry Complement direct bit AND direct bit to carry AND complement of direct bit to carry OR direct bit to carry OR complement of direct bit to carry Move direct bit to carry Move carry to direct bit Jump if carry is set Jump if no carry is set Jump if direct bit is set Jump if direct bit is not set Jump if direct bit is set and clear bit Description Bytes 1 2 1 2 1 2 2 2 2 2 2 2 2 2 3 3 3 Cycles 1 3 1 3 1 3 2 2 2 2 2 3 3 3 5 5 5 SETB C SETB bit CPL CPL ANL ANL C bit C, bit C, /bit ORL C, bit ORL C, /bit MOV C, bit MOV bit, C JC JB rel bit, rel JNC rel JNB bit, rel JBC bit, rel Document Number: 001-56955 Rev. *H Page 15 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet 4.3.1.5 Program Branching Instructions The 8051 supports a set of conditional and unconditional jump instructions that help to modify the program execution flow. Table 4-5 shows the list of jump instructions. Table 4-5. Jump Instructions Mnemonic ACALL addr11 LCALL addr16 RET RETI AJMP addr11 LJMP addr16 SJMP rel JMP @A + DPTR JZ rel JNZ rel CJNE A,Direct, rel CJNE A, #data, rel CJNE Rn, #data, rel CJNE @Ri, #data, rel DJNZ Rn,rel DJNZ Direct, rel NOP Description Absolute subroutine call Long subroutine call Return from subroutine Return from interrupt Absolute jump Long jump Short jump (relative address) Jump indirect relative to DPTR Jump if accumulator is zero Jump if accumulator is nonzero Compare direct byte to accumulator and jump if not equal Compare immediate data to accumulator and jump if not equal Compare immediate data to register and jump if not equal Compare immediate data to indirect RAM and jump if not equal Decrement register and jump if not zero Decrement direct byte and jump if not zero No operation Bytes 2 3 1 1 2 3 2 1 2 2 3 3 3 3 2 3 1 Cycles 4 4 4 4 3 4 3 5 4 4 5 4 4 5 4 5 1 4.4 DMA and PHUB The PHUB and the DMA controller are responsible for data transfer between the CPU and peripherals, and also data transfers between peripherals. The PHUB and DMA also control device configuration during boot. The PHUB consists of: A central hub that includes the DMA controller, arbiter, and router Multiple spokes that radiate outward from the hub to most peripherals There are two PHUB masters: the CPU and the DMA controller. Both masters may initiate transactions on the bus. The DMA channels can handle peripheral communication without CPU intervention. The arbiter in the central hub determines which DMA channel is the highest priority if there are multiple requests. 4.4.1 PHUB Features CPU and DMA controller are both bus masters to the PHUB Eight Multi-layer AHB Bus parallel access paths (spokes) for peripheral access Simultaneous CPU and DMA access to peripherals located on different spokes Simultaneous DMA source and destination burst transactions on different spokes Supports 8, 16, 24, and 32-bit addressing and data Table 4-6. PHUB Spokes and Peripherals PHUB Spokes Peripherals 0 SRAM 1 IOs, PICU, EMIF 2 PHUB local configuration, Power manager, Clocks, IC, SWV, EEPROM, Flash programming interface 3 Analog interface and trim, Decimator 4 USB, USB, I2C, Timers, Counters, and PWMs 5 Reserved 6 UDBs group 1 7 UDBs group 2 4.4.2 DMA Features 24 DMA channels Each channel has one or more transaction descriptors (TDs) to configure channel behavior. Up to 128 total TDs can be defined TDs can be dynamically updated Eight levels of priority per channel Any digitally routable signal, the CPU, or another DMA channel, can trigger a transaction Each channel can generate up to two interrupts per transfer Transactions can be stalled or canceled Supports transaction size of infinite or 1 to 64k bytes TDs may be nested and/or chained for complex transactions Document Number: 001-56955 Rev. *H Page 16 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet 4.4.3 Priority Levels The CPU always has higher priority than the DMA controller when their accesses require the same bus resources. Due to the system architecture, the CPU can never starve the DMA. DMA channels of higher priority (lower priority number) may interrupt current DMA transfers. In the case of an interrupt, the current transfer is allowed to complete its current transaction. To ensure latency limits when multiple DMA accesses are requested simultaneously, a fairness algorithm guarantees an interleaved minimum percentage of bus bandwidth for priority levels 2 through 7. Priority levels 0 and 1 do not take part in the fairness algorithm and may use 100 percent of the bus bandwidth. If a tie occurs on two DMA requests of the same priority level, a simple round robin method is used to evenly share the allocated bandwidth. The round robin allocation can be disabled for each DMA channel, allowing it to always be at the head of the line. Priority levels 2 to 7 are guaranteed the minimum bus bandwidth shown in Table 4-7 after the CPU and DMA priority levels 0 and 1 have satisfied their requirements. Table 4-7. Priority Levels 4.4.4.3 Ping Pong DMA A ping pong DMA case uses double buffering to allow one buffer to be filled by one client while another client is consuming the data previously received in the other buffer. In its simplest form, this is done by chaining two TDs together so that each TD calls the opposite TD when complete. 4.4.4.4 Circular DMA Circular DMA is similar to ping pong DMA except it contains more than two buffers. In this case there are multiple TDs; after the last TD is complete it chains back to the first TD. 4.4.4.5 Scatter Gather DMA In the case of scatter gather DMA, there are multiple noncontiguous sources or destinations that are required to effectively carry out an overall DMA transaction. For example, a packet may need to be transmitted off of the device and the packet elements, including the header, payload, and trailer, exist in various noncontiguous locations in memory. Scatter gather DMA allows the segments to be concatenated together by using multiple TDs in a chain. The chain gathers the data from the multiple locations. A similar concept applies for the reception of data onto the device. Certain parts of the received data may need to be scattered to various locations in memory for software processing convenience. Each TD in the chain specifies the location for each discrete element in the chain. 4.4.4.6 Packet Queuing DMA Packet queuing DMA is similar to scatter gather DMA but specifically refers to packet protocols. With these protocols, there may be separate configuration, data, and status phases associated with sending or receiving a packet. For instance, to transmit a packet, a memory mapped configuration register can be written inside a peripheral, specifying the overall length of the ensuing data phase. The CPU can set up this configuration information anywhere in system memory and copy it with a simple TD to the peripheral. After the configuration phase, a data phase TD (or a series of data phase TDs) can begin (potentially using scatter gather). When the data phase TD(s) finish, a status phase TD can be invoked that reads some memory mapped status information from the peripheral and copies it to a location in system memory specified by the CPU for later inspection. Multiple sets of configuration, data, and status phase “subchains” can be strung together to create larger chains that transmit multiple packets in this way. A similar concept exists in the opposite direction to receive the packets. 4.4.4.7 Nested DMA One TD may modify another TD, as the TD configuration space is memory mapped similar to any other peripheral. For example, a first TD loads a second TD’s configuration and then calls the second TD. The second TD moves data as required by the application. When complete, the second TD calls the first TD, which again updates the second TD’s configuration. This process repeats as often as necessary. Priority Level 0 1 2 3 4 5 6 7 % Bus Bandwidth 100.0 100.0 50.0 25.0 12.5 6.2 3.1 1.5 When the fairness algorithm is disabled, DMA access is granted based solely on the priority level; no bus bandwidth guarantees are made. 4.4.4 Transaction Modes Supported The flexible configuration of each DMA channel and the ability to chain multiple channels allow the creation of both simple and complex use cases. General use cases include, but are not limited to: 4.4.4.1 Simple DMA In a simple DMA case, a single TD transfers data between a source and sink (peripherals or memory location). 4.4.4.2 Auto Repeat DMA Auto repeat DMA is typically used when a static pattern is repetitively read from system memory and written to a peripheral. This is done with a single TD that chains to itself. Document Number: 001-56955 Rev. *H Page 17 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet 4.5 Interrupt Controller The interrupt controller provides a mechanism for hardware resources to change program execution to a new address, independent of the current task being executed by the main code. The interrupt controller provides enhanced features not found on original 8051 interrupt controllers: Thirty two interrupt vectors Jumps directly to ISR anywhere in code space with dynamic vector addresses Multiple sources for each vector Flexible interrupt to vector matching Each interrupt vector is independently enabled or disabled Each interrupt can be dynamically assigned one of eight priorities Eight level nestable interrupts Multiple I/O interrupt vectors Software can send interrupts Software can clear pending interrupts When an interrupt is pending, the current instruction is completed and the program counter is pushed onto the stack. Code execution then jumps to the program address provided by the vector. After the ISR is completed, a RETI instruction is executed and returns execution to the instruction following the previously interrupted instruction. To do this the RETI instruction pops the program counter from the stack. If the same priority level is assigned to two or more interrupts, the interrupt with the lower vector number is executed first. Each interrupt vector may choose from three interrupt sources: Fixed Function, DMA, and UDB. The fixed function interrupts are direct connections to the most common interrupt sources and provide the lowest resource cost connection. The DMA interrupt sources provide direct connections to the two DMA interrupt sources provided per DMA channel. The third interrupt source for vectors is from the UDB digital routing array. This allows any digital signal available to the UDB array to be used as an interrupt source. Fixed function interrupts and all interrupt sources may be routed to any interrupt vector using the UDB interrupt source connections. Table 4-8. Interrupt Vector Table # 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Fixed Function LVD ECC Reserved Sleep (Pwr Mgr) PICU[0] PICU[1] PICU[2] PICU[3] PICU[4] PICU[5] PICU[6] PICU[12] PICU[15] Comparators Combined Reserved I2C Reserved Timer/Counter0 Timer/Counter1 Timer/Counter2 Timer/Counter3 USB SOF Int USB Arb Int USB Bus Int USB Endpoint[0] Reserved Reserved Reserved Decimator Int PHUB Error Int EEPROM Fault Int DMA phub_termout0[0] phub_termout0[1] phub_termout0[2] phub_termout0[3] phub_termout0[4] phub_termout0[5] phub_termout0[6] phub_termout0[7] phub_termout0[8] phub_termout0[9] UDB udb_intr[0] udb_intr[1] udb_intr[2] udb_intr[3] udb_intr[4] udb_intr[5] udb_intr[6] udb_intr[7] udb_intr[8] udb_intr[9] phub_termout0[10] udb_intr[10] phub_termout0[11] udb_intr[11] phub_termout0[12] udb_intr[12] phub_termout0[13] udb_intr[13] phub_termout0[14] udb_intr[14] phub_termout0[15] udb_intr[15] phub_termout1[0] phub_termout1[1] phub_termout1[2] phub_termout1[3] phub_termout1[4] phub_termout1[5] phub_termout1[6] phub_termout1[7] phub_termout1[8] udb_intr[16] udb_intr[17] udb_intr[18] udb_intr[19] udb_intr[20] udb_intr[21] udb_intr[22] udb_intr[23] udb_intr[24] udb_intr[25] USB Endpoint Data phub_termout1[9] phub_termout1[10] udb_intr[26] phub_termout1[11] udb_intr[27] phub_termout1[12] udb_intr[28] phub_termout1[13] udb_intr[29] phub_termout1[14] udb_intr[30] phub_termout1[15] udb_intr[31] Document Number: 001-56955 Rev. *H Page 18 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet 5. Memory 5.1 Static RAM CY8C32 Static RAM (SRAM) is used for temporary data storage. Up to 8 KB of SRAM is provided and can be accessed by the 8051 or the DMA controller. See Memory Map on page 20. Simultaneous access of SRAM by the 8051 and the DMA controller is possible if different 4-KB blocks are accessed. Table 5-1. Flash Protection Protection Setting Unprotected Factory Upgrade Allowed External read and write – + internal read and write External write + internal read and write Not Allowed External read External read and write External read and write + internal write 5.2 Flash Program Memory Flash memory in PSoC devices provides nonvolatile storage for user firmware, user configuration data, bulk data storage, and optional ECC data. The main flash memory area contains up to 64 KB of user program space. Up to an additional 8 KB of flash space is available for Error Correcting Codes (ECC). If ECC is not used this space can store device configuration data and bulk user data. User code may not be run out of the ECC flash memory section. ECC can correct one bit error and detect two bit errors per 8 bytes of firmware memory; an interrupt can be generated when an error is detected. Flash is read in units of rows; each row is 9 bytes wide with 8 bytes of data and 1 byte of ECC data. When a row is read, the data bytes are copied into an 8-byte instruction buffer. The CPU fetches its instructions from this buffer, for improved CPU performance. Flash programming is performed through a special interface and preempts code execution out of flash. The flash programming interface performs flash erasing, programming and setting code protection levels. Flash in-system serial programming (ISSP), typically used for production programming, is possible through both the SWD and JTAG interfaces. In-system programming, typically used for bootloaders, is also possible using serial interfaces such as I2C, USB, UART, and SPI, or any communications protocol. Field Upgrade Internal read and write Full Protection Internal read Disclaimer Note the following details of the flash code protection features on Cypress devices. Cypress products meet the specifications contained in their particular Cypress datasheets. Cypress believes that its family of products is one of the most secure families of its kind on the market today, regardless of how they are used. There may be methods, unknown to Cypress, that can breach the code protection features. Any of these methods, to our knowledge, would be dishonest and possibly illegal. Neither Cypress nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not mean that we are guaranteeing the product as “unbreakable.” Cypress is willing to work with the customer who is concerned about the integrity of their code. Code protection is constantly evolving. We at Cypress are committed to continuously improving the code protection features of our products. 5.4 EEPROM PSoC EEPROM memory is a byte-addressable nonvolatile memory. The CY8C32 has up to 2 KB of EEPROM memory to store user data. Reads from EEPROM are random access at the byte level. Reads are done directly; writes are done by sending write commands to an EEPROM programming interface. CPU code execution can continue from flash during EEPROM writes. EEPROM is erasable and writeable at the row level. The EEPROM is divided into 128 rows of 16 bytes each. The CPU can not execute out of EEPROM. There is no ECC hardware associated with EEPROM. If ECC is required it must be handled in firmware. 5.3 Flash Security All PSoC devices include a flexible flash-protection model that prevents access and visibility to on-chip flash memory. This prevents duplication or reverse engineering of proprietary code. Flash memory is organized in blocks, where each block contains 256 bytes of program or data and 32 bytes of ECC or configuration data. A total of up to 256 blocks is provided on 64-KB flash devices. The device offers the ability to assign one of four protection levels to each row of flash. Table 5-1 lists the protection modes available. Flash protection levels can only be changed by performing a complete flash erase. The Full Protection and Field Upgrade settings disable external access (through a debugging tool such as PSoC Creator, for example). If your application requires code update through a boot loader, then use the Field Upgrade setting. Use the Unprotected setting only when no security is needed in your application. The PSoC device also offers an advanced security feature called Device Security which permanently disables all test, programming, and debug ports, protecting your application from external access (see the “Device Security” section on page 53). For more information about how to take full advantage of the security features in PSoC, see the PSoC 3 TRM. 5.5 External Memory Interface CY8C32 provides an external memory interface (EMIF) for connecting to external memory devices. The connection allows read and write accesses to external memories. The EMIF operates in conjunction with UDBs, I/O ports, and other hardware to generate external memory address and control signals. At 33 MHz, each memory access cycle takes four bus clock cycles. Figure 5-1 is the EMIF block diagram. The EMIF supports synchronous and asynchronous memories. The CY8C32 supports only one type of external memory device at a time. External memory can be accessed via the 8051 xdata space; up to 24 address bits can be used. See “xdata Space” section on page 21. The memory can be 8 or 16 bits wide. Page 19 of 100 Document Number: 001-56955 Rev. *H [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet Figure 5-1. EMIF Block Diagram Address Signals External MEM_ ADDR[23:0] _ IO PORTs Data, Address, and Control Signals IO IF Data Signals External MEM_ DATA[15:0] _ IO PORTs Control Signals PHUB Data, Address, and Control Signals IO PORTs Control DSI Dynamic Output Control UDB DSI to Port Data, Address, and Control Signals EM Control Signals Other Control Signals EMIF 5.6 Memory Map The CY8C32 8051 memory map is very similar to the MCS-51 memory map. 5.6.1 Code Space The CY8C32 8051 code space is 64 KB. Only main flash exists in this space. See the “Flash Program Memory” section on page 19. 5.6.2 Internal Data Space The CY8C32 8051 internal data space is 384 bytes, compressed within a 256-byte space. This space consists of 256 bytes of RAM (in addition to the SRAM mentioned in Static RAM on page 19) and a 128-byte space for Special Function Registers (SFRs). See Figure 5-2. The lowest 32 bytes are used for 4 banks of registers R0-R7. The next 16 bytes are bit-addressable. Figure 5-2. 8051 Internal Data Space 0x00 0x1F 0x20 0x2F 0x30 0x7F 0x80 Upper Core RAM Shared with Stack Space (indirect addressing) SFR Special Function Registers (direct addressing) 4 Banks, R0-R7 Each Bit-Addressable Area Lower Core RAM Shared with Stack Space (direct and indirect addressing) 0xFF In addition to the register or bit address modes used with the lower 48 bytes, the lower 128 bytes can be accessed with direct or indirect addressing. With direct addressing mode, the upper 128 bytes map to the SFRs. With indirect addressing mode, the upper 128 bytes map to RAM. Stack operations use indirect addressing; the 8051 stack space is 256 bytes. See the “Addressing Modes” section on page 11 Document Number: 001-56955 Rev. *H Page 20 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet 5.6.3 SFRs The special function register (SFR) space provides access to frequently accessed registers. The memory map for the SFR memory space is shown in Table 5-2. Table 5-2. SFR Map Address 0×F8 0×F0 0×E8 0×E0 0×D8 0×D0 0×C8 0×C0 0×B8 0×B0 0×A8 0×A0 0×98 0×90 0×88 0×80 B SFRPRT12DR ACC SFRPRT6DR PSW SFRPRT5DR SFRPRT4DR – SFRPRT3DR IE P2AX SFRPRT2DR SFRPRT1DR – SFRPRT0DR 0/8 SFRPRT15DR – 1/9 SFRPRT15PS SFRPRT12PS – SFRPRT6PS – SFRPRT5PS SFRPRT4PS – SFRPRT3PS – – SFRPRT2PS SFRPRT1PS SFRPRT0PS SP 2/A SFRPRT15SEL SFRPRT12SEL MXAX – SFRPRT6SEL – SFRPRT5SEL SFRPRT4SEL – SFRPRT3SEL – SFRPRT1SEL SFRPRT2SEL – SFRPRT0SEL DPL0 – – – – – – – – – – – – – 3/B – – – – – – – – – – – – – – 4/C – – – – – – – – – – – – – 5/D – – – – – – – – – – – – – – – 6/E – – – – – – – – – – – – – – – – 7/F DPX0 – DPH0 DPL1 DPX1 – DPH1 DPS The CY8C32 family provides the standard set of registers found on industry standard 8051 devices. In addition, the CY8C32 devices add SFRs to provide direct access to the I/O ports on the device. The following sections describe the SFRs added to the CY8C32 family. I/O Port SFRs The I/O ports provide digital input sensing, output drive, pin interrupts, connectivity for analog inputs and outputs, LCD, and access to peripherals through the DSI. Full information on I/O ports is found in I/O System and Routing on page 29. I/O ports are linked to the CPU through the PHUB and are also available in the SFRs. Using the SFRs allows faster access to a limited set of I/O port registers, while using the PHUB allows boot configuration and access to all I/O port registers. Each SFR supported I/O port provides three SFRs: SFRPRTxDR sets the output data state of the port (where x is port number and includes ports 0 – 6, 12 and 15). The SFRPRTxSEL selects whether the PHUB PRTxDR register or the SFRPRTxDR controls each pin’s output buffer within the port. If a SFRPRTxSEL[y] bit is high, the corresponding SFRPRTxDR[y] bit sets the output state for that pin. If a SFRPRTxSEL[y] bit is low, the corresponding PRTxDR[y] bit sets the output state of the pin (where y varies from 0 to 7). The SFRPRTxPS is a read only register that contains pin state values of the port pins. 5.6.3.1 xdata Space The 8051 xdata space is 24-bit, or 16 MB in size. The majority of this space is not “external”—it is used by on-chip components. See Table 5-3. External, that is, off-chip, memory can be accessed using the EMIF. See External Memory Interface on page 19. XData Space Access SFRs The 8051 core features dual DPTR registers for faster data transfer operations. The data pointer select SFR, DPS, selects which data pointer register, DPTR0 or DPTR1, is used for the following instructions: MOVX @DPTR, A MOVX A, @DPTR MOVC A, @A+DPTR JMP @A+DPTR INC DPTR MOV DPTR, #data16 The extended data pointer SFRs, DPX0, DPX1, MXAX, and P2AX, hold the most significant parts of memory addresses during access to the xdata space. These SFRs are used only with the MOVX instructions. During a MOVX instruction using the DPTR0/DPTR1 register, the most significant byte of the address is always equal to the contents of DPX0/DPX1. During a MOVX instruction using the R0 or R1 register, the most significant byte of the address is always equal to the contents of MXAX, and the next most significant byte is always equal to the contents of P2AX. Document Number: 001-56955 Rev. *H Page 21 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet Table 5-3. XDATA Data Address Map Address Range 0×00 0000 – 0×00 1FFF 0×00 4000 – 0×00 42FF 0×00 4300 – 0×00 43FF 0×00 4400 – 0×00 44FF 0×00 4500 – 0×00 45FF 0×00 4700 – 0×00 47FF 0×00 4900 – 0×00 49FF SRAM Clocking, PLLs, and oscillators Power management Interrupt controller Ports interrupt control Flash programming interface I2C controller Purpose voltage and temperature. Additional internal and external clock sources allow each design to optimize accuracy, power, and cost. All of the system clock sources can be used to generate other clock frequencies in the 16-bit clock dividers and UDBs for anything the user wants, for example a UART baud rate generator. Clock generation and distribution is automatically configured through the PSoC Creator IDE graphical interface. This is based on the complete system’s requirements. It greatly speeds the design process. PSoC Creator allows you to build clocking systems with minimal input. You can specify desired clock frequencies and accuracies, and the software locates or builds a clock that meets the required specifications. This is possible because of the programmability inherent PSoC. Key features of the clocking system include: Seven general purpose clock sources 3- to 24-MHz IMO, ±1 percent at 3 MHz 4- to 33-MHz external crystal oscillator (MHzECO) Clock doubler provides a doubled clock frequency output for the USB block, see USB Clock Domain on page 25 DSI signal from an external I/O pin or other logic 24- to 50- MHz fractional PLL sourced from IMO, MHzECO, or DSI Clock Doubler 1-kHz, 33-kHz, 100-kHz ILO for watchdog timer (WDT) and sleep timer 32.768-kHz external crystal oscillator (kHzECO) for RTC IMO has a USB mode that auto locks to the USB bus clock requiring no external crystal for USB. (USB equipped parts only) Independently sourced clock in all clock dividers Eight 16-bit clock dividers for the digital system Four 16-bit clock dividers for the analog system Dedicated 16-bit divider for the bus clock Dedicated 4-bit divider for the CPU clock Automatic clock configuration in PSoC Creator 0×00 4E00 – 0×00 4EFF Decimator 0×00 4F00 – 0×00 4FFF Fixed timer/counter/PWMs 0×00 5000 – 0×00 51FF 0×00 5400 – 0×00 54FF 0×00 5800 – 0×00 5FFF 0×00 6000 – 0×00 60FF 0×00 6400 – 0×00 6FFF 0×00 7000 – 0×00 7FFF 0×00 8000 – 0×00 8FFF 0×05 0220 – 0×05 02F0 0×08 0000 – 0×08 1FFF I/O ports control External Memory Interface (EMIF) control registers Analog Subsystem interface USB controller UDB configuration PHUB configuration EEPROM Debug controller Flash ECC bytes 0×01 0000 – 0×01 FFFF Digital Interconnect configuration 0×80 0000 – 0×FF FFFF External Memory Interface 6. System Integration 6.1 Clocking System The clocking system generates, divides, and distributes clocks throughout the PSoC system. For the majority of systems, no external crystal is required. The IMO and PLL together can generate up to a 50 MHz clock, accurate to ±1 percent over Table 6-1. Oscillator Summary Source IMO MHzECO DSI PLL Doubler ILO kHzECO Fmin 3 MHz 4 MHz 0 MHz 24 MHz 12 MHz 1 kHz 32 kHz Tolerance at Fmin ±1% over voltage and temperature Crystal dependent Input dependent Input dependent Input dependent –50%, +100% Crystal dependent Fmax 24 MHz 33 MHz 50 MHz 50 MHz 48 MHz 100 kHz 32 kHz Tolerance at Fmax ±4% Crystal dependent Input dependent Input dependent Input dependent –55%, +100% Crystal dependent Startup Time 10 µs max 5 ms typ, max is crystal dependent Input dependent 250 µs max 1 µs max 15 ms max in lowest power mode 500 ms typ, max is crystal dependent Document Number: 001-56955 Rev. *H Page 22 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet Figure 6-1. Clocking Subsystem 3-24 MHz IMO 4-33 MHz ECO External IO or DSI 0-50 MHz 32 kHz ECO 1,33,100 kHz ILO 12-48 MHz Doubler CPU Clock Divider 4 bit 24-50 MHz PLL System Clock Mux Bus Clock Divider 16 bit s k e w s k e w s k e w s k e w CPU Clock Bus Clock Digital Clock Divider 16 bit Digital Clock Divider 16 bit Analog Clock Divider 16 bit Digital Clock Divider 16 bit 7 Digital Clock Divider 16 bit 7 Analog Clock Divider 16 bit Digital Clock Divider 16 bit Digital Clock Divider 16 bit Analog Clock Divider 16 bit Digital Clock Divider 16 bit Digital Clock Divider 16 bit Analog Clock Divider 16 bit 6.1.1 Internal Oscillators 6.1.1.1 Internal Main Oscillator In most designs the IMO is the only clock source required, due to its ±1-percent accuracy. The IMO operates with no external components and outputs a stable clock. A factory trim for each frequency range is stored in the device. With the factory trim, tolerance varies from ±1 percent at 3 MHz, up to ±4-percent at 24 MHz. The IMO, in conjunction with the PLL, allows generation of CPU and system clocks up to the device's maximum frequency (see Phase-locked Loop) The IMO provides clock outputs at 3, 6, 12, and 24 MHz. 6.1.1.2 Clock Doubler The clock doubler outputs a clock at twice the frequency of the input clock. The doubler works for input frequency ranges of 6 to 24 MHz (providing 12 to 48 MHz at the output). It can be configured to use a clock from the IMO, MHzECO, or the DSI (external pin). The doubler is typically used to clock the USB. 6.1.1.3 Phase-locked Loop The PLL allows low-frequency, high-accuracy clocks to be multiplied to higher frequencies. This is a tradeoff between higher clock frequency and accuracy and, higher power consumption and increased startup time. The PLL block provides a mechanism for generating clock frequencies based upon a variety of input sources. The PLL outputs clock frequencies in the range of 24 to 50 MHz. Its input and feedback dividers supply 4032 discrete ratios to create almost any desired system clock frequency. The accuracy of the Document Number: 001-56955 Rev. *H PLL output depends on the accuracy of the PLL input source. The most common PLL use is to multiply the IMO clock at 3 MHz, where it is most accurate to generate the CPU and system clocks up to the device’s maximum frequency. The PLL achieves phase lock within 250 µs (verified by bit setting). It can be configured to use a clock from the IMO, MHzECO or DSI (external pin). The PLL clock source can be used until lock is complete and signaled with a lock bit. The lock signal can be routed through the DSI to generate an interrupt. Disable the PLL before entering low-power modes. 6.1.1.4 Internal Low-Speed Oscillator The ILO provides clock frequencies for low-power consumption, including the watchdog timer, and sleep timer. The ILO generates up to three different clocks: 1 kHz, 33 kHz, and 100 kHz. The 1 kHz clock (CLK1K) is typically used for a background ‘heartbeat’ timer. This clock inherently lends itself to low-power supervisory operations such as the watchdog timer and long sleep intervals using the central timewheel (CTW). The central timewheel is a 1 kHz, free running, 13-bit counter clocked by the ILO. The central timewheel is always enabled, except in hibernate mode and when the CPU is stopped during debug on chip mode. It can be used to generate periodic interrupts for timing purposes or to wake the system from a low-power mode. Firmware can reset the central timewheel. Systems that require accurate timing should use the RTC capability instead of the central timewheel. Page 23 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet The 100-kHz clock (CLK100K) works as a low-power system clock to run the CPU. It can also generate time intervals such as fast sleep intervals using the fast timewheel. The fast timewheel is a 100-kHz, 5-bit counter clocked by the ILO that can also be used to wake the system. The fast timewheel settings are programmable, and the counter automatically resets when the terminal count is reached. This enables flexible, periodic wakeups of the CPU at a higher rate than is allowed using the central timewheel. The fast timewheel can generate an optional interrupt each time the terminal count is reached. The 33-kHz clock (CLK33K) comes from a divide-by-3 operation on CLK100K. This output can be used as a reduced accuracy version of the 32.768-kHz ECO clock with no need for a crystal. 6.1.2 External Oscillators 6.1.2.1 MHz External Crystal Oscillator The MHzECO provides high frequency, high precision clocking using an external crystal (see Figure 6-2). It supports a wide variety of crystal types, in the range of 4 to 33 MHz. When used in conjunction with the PLL, it can generate CPU and system clocks up to the device's maximum frequency (see “Phase-locked Loop” section on page 23). The GPIO pins connecting to the external crystal and capacitors are fixed. MHzECO accuracy depends on the crystal chosen. Figure 6-3. 32kHzECO Block Diagram 32 kHz Crystal Osc XCLK32K Xi (Pin P15[3]) External Components Xo (Pin P15[2]) 32 kHz crystal Capacitors 6.1.2.3 Digital System Interconnect The DSI provides routing for clocks taken from external clock oscillators connected to I/O. The oscillators can also be generated within the device in the digital system and Universal Digital Blocks. While the primary DSI clock input provides access to all clocking resources, up to eight other DSI clocks (internally or externally generated) may be routed directly to the eight digital clock dividers. This is only possible if there are multiple precision clock sources. 6.1.3 Clock Distribution All seven clock sources are inputs to the central clock distribution system. The distribution system is designed to create multiple high precision clocks. These clocks are customized for the design’s requirements and eliminate the common problems found with limited resolution prescalers attached to peripherals. The clock distribution system generates several types of clock trees. The system clock is used to select and supply the fastest clock in the system for general system clock requirements and clock synchronization of the PSoC device. Bus Clock 16-bit divider uses the system clock to generate the system's bus clock used for data transfers. Bus clock is the source clock for the CPU clock divider. Eight fully programmable 16-bit clock dividers generate digital system clocks for general use in the digital system, as configured by the design’s requirements. Digital system clocks can generate custom clocks derived from any of the seven clock sources for any purpose. Examples include baud rate generators, accurate PWM periods, and timer clocks, and many others. If more than eight digital clock dividers are required, the Universal Digital Blocks (UDBs) and fixed function Timer/Counter/PWMs can also generate clocks. Four 16-bit clock dividers generate clocks for the analog system components that require clocking, such as ADC. The analog clock dividers include skew control to ensure that critical analog events do not occur simultaneously with digital switching events. This is done to reduce analog system noise. Page 24 of 100 Figure 6-2. MHzECO Block Diagram 4 - 33 MHz Crystal Osc XCLK_MHZ Xi (Pin P15[1]) External Components Xo (Pin P15[0]) 4 – 33 MHz crystal Capacitors 6.1.2.2 32.768-kHz ECO The 32.768-kHz External Crystal Oscillator (32kHzECO) provides precision timing with minimal power consumption using an external 32.768-kHz watch crystal (see Figure 6-3). The 32kHzECO also connects directly to the sleep timer and provides the source for the RTC. The RTC uses a 1-second interrupt to implement the RTC functionality in firmware. The oscillator works in two distinct power modes. This allows users to trade off power consumption with noise immunity from neighboring circuits. The GPIO pins connected to the external crystal and capacitors are fixed. Document Number: 001-56955 Rev. *H [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet Each clock divider consists of an 8-input multiplexer, a 16-bit clock divider (divide by 2 and higher) that generates ~50 percent duty cycle clocks, system clock resynchronization logic, and deglitch logic. The outputs from each digital clock tree can be routed into the digital system interconnect and then brought back into the clock system as an input, allowing clock chaining of up to 32 bits. 6.1.4 USB Clock Domain The USB clock domain is unique in that it operates largely asynchronously from the main clock network. The USB logic contains a synchronous bus interface to the chip, while running on an asynchronous clock to process USB data. The USB logic requires a 48 MHz frequency. This frequency can be generated from different sources, including DSI clock at 48 MHz or doubled value of 24 MHz from internal oscillator, DSI signal, or crystal oscillator. Vddio2 0.1µF Vddio2 I/O Supply 1 µF 6.2 Power System The power system consists of separate analog, digital, and I/O supply pins, labeled Vdda, Vddd, and Vddiox, respectively. It also includes two internal 1.8 V regulators that provide the digital (Vccd) and analog (Vcca) supplies for the internal core logic. The output pins of the regulators (Vccd and Vcca) and the Vddio pins must have capacitors connected as shown in Figure 6-4. The two Vccd pins must be shorted together, with as short a trace as possible, and connected to a 1-µF ±10-percent X5R capacitor. The power system also contains a sleep regulator, an I2C regulator, and a hibernate regulator. Figure 6-4. PSoC Power System Vddd Vddio0 0.1µ F Vddd Vccd Vssd I/O Supply Vddio0 I2C Regulator Sleep Regulator 0.1µF Digital Domain Vdda Vdda Vssd Digital Regulators Analog Regulator Vcca 1 µF Vssa 0.1µF . Analog Domain Hibernate Regulator Vddio1 Vccd I/O Supply Vddd Vssd I/O Supply Vddio3 Vddio3 0.1µF 0.1µF Vddio1 Vddd 0.1µF Note The two Vccd pins must be connected together with as short a trace as possible. A trace under the device is recommended, as shown in Figure 2-6. Document Number: 001-56955 Rev. *H Page 25 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet 6.2.1 Power Modes PSoC 3 devices have four different power modes, as shown in Table 6-2 and Table 6-3. The power modes allow a design to easily provide required functionality and processing power while simultaneously minimizing power consumption and maximizing battery life in low-power and portable devices. PSoC 3 power modes, in order of decreasing power consumption are: Active Alternate Active Sleep Hibernate Active is the main processing mode. Its functionality is configurable. Each power controllable subsystem is enabled or disabled by using separate power configuration template registers. In alternate active mode, fewer subsystems are enabled, reducing power. In sleep mode most resources are disabled regardless of the template settings. Sleep mode is optimized to provide timed sleep intervals and RTC functionality. The lowest power mode is hibernate, which retains register and SRAM state, but no clocks, and allows wakeup only from I/O pins. Figure 6-5 illustrates the allowable transitions between power modes. Table 6-2. Power Modes Power Modes Active Description Entry Condition Wakeup Source Any interrupt Active Clocks Regulator Primary mode of operation, all Wakeup, reset, peripherals available (program- manual register mable) entry Manual register Similar to Active mode, and is entry typically configured to have fewer peripherals active to reduce power. One possible configuration is to use the UDBs for processing, with the CPU turned off All subsystems automatically disabled Manual register entry Any All regulators available. (programmable) Digital and analog regulators can be disabled if external regulation used. Any All regulators available. (programmable) Digital and analog regulators can be disabled if external regulation used. Alternate Active Any interrupt Sleep Comparator, ILO/kHzECO PICU, I2C, RTC, CTW, LVD Both digital and analog regulators buzzed. Digital and analog regulators can be disabled if external regulation used. Only hibernate regulator active. Hibernate All subsystems automatically Manual register disabled entry Lowest power consuming mode with all peripherals and internal regulators disabled, except hibernate regulator is enabled Configuration and memory contents retained PICU Table 6-3. Power Modes Wakeup Time and Power Consumption Sleep Modes Active Alternate Active Sleep Hibernate Wakeup Time – – 3.6 V Vdda Vddd Vddio Ind 22 µF 0. 1 µF 10 µH SMP PSoC 22 µF Vbat Vssb Vssa Vssd Document Number: 001-56955 Rev. *H Page 27 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet by firmware within a certain period of time, the watchdog timer generates a reset. Software – The device can be reset under program control. The switching frequency can be set to 100 kHz, 400 kHz, 2 MHz, or 32 kHz to optimize efficiency and component cost. The 100 kHz, 400 kHz, and 2 MHz switching frequencies are generated using oscillators internal to the boost converter block. When the 32-kHz switching frequency is selected, the clock is derived from a 32 kHz external crystal oscillator. The 32-kHz external clock is primarily intended for boost standby mode. At 2 MHz the Vboost output is limited to 2 × Vbat, and at 400 kHz Vboost is limited to 4 × Vbat. The boost converter can be operated in two different modes: active and standby. Active mode is the normal mode of operation where the boost regulator actively generates a regulated output voltage. In standby mode, most boost functions are disabled, thus reducing power consumption of the boost circuit. The converter can be configured to provide low-power, low-current regulation in the standby mode. The external 32 kHz crystal can be used to generate inductor boost pulses on the rising and falling edge of the clock when the output voltage is less than the programmed value. This is called automatic thump mode (ATM). The boost typically draws 200 µA in active mode and 12 µA in standby mode. The boost operating modes must be used in conjunction with chip power modes to minimize the total chip power consumption. Table 6-4 lists the boost power modes available in different chip power modes. Figure 6-7. Resets Vddd Vdda Power Voltage Level Monitors Reset Pin Processor Interrupt External Reset Reset Controller System Reset Watchdog Timer Software Reset Register Table 6-4. Chip and Boost Power Modes Compatibility Chip Power Modes Chip – Active mode Boost Power Modes Boost can be operated in either active or standby mode. Chip – Sleep mode Boost can be operated in either active or standby mode. However, it is recommended to operate boost in standby mode for low-power consumption Chip – Hibernate mode Boost can only be operated in active mode. However, it is recommended not to use boost in chip hibernate mode due to high current consumption in boost active mode If the boost converter is not used in a given application, tie the VBAT, VSSB, and VBOOST pins to ground and leave the Ind pin unconnected. The term device reset indicates that the processor as well as analog and digital peripherals and registers are reset. A reset status register holds the source of the most recent reset or power voltage monitoring interrupt. The program may examine this register to detect and report exception conditions. This register is cleared after a power-on reset. 6.3.1 Reset Sources 6.3.1.1 Power Voltage Level Monitors IPOR – Initial Power-on Reset At initial power-on, IPOR monitors the power voltages VDDD and VDDA, both directly at the pins and at the outputs of the corresponding internal regulators. The trip level is not precise. It is set to approximately 1 volt, which is below the lowest specified operating voltage but high enough for the internal circuits to be reset and to hold their reset state. The monitor generates a reset pulse that is at least 100 ns wide. It may be much wider if one or more of the voltages ramps up slowly. To save power the IPOR circuit is disabled when the internal digital supply is stable. Voltage supervision is then handed off to the precise low voltage reset (PRES) circuit. When the voltage is high enough for PRES to release, the IMO starts. PRES – Precise Low Voltage Reset This circuit monitors the outputs of the analog and digital internal regulators after power up. The regulator outputs are compared to a precise reference voltage. The response to a PRES trip is identical to an IPOR reset. In normal operating mode, the program cannot disable the digital PRES circuit. The analog regulator can be disabled, which also disables the analog portion of the PRES. The PRES circuit is disabled automatically during sleep and hibernate 6.3 Reset CY8C32 has multiple internal and external reset sources available. The reset sources are: Power source monitoring – The analog and digital power voltages, VDDA, VDDD, VCCA, and VCCD are monitored in several different modes during power up, active mode, and sleep mode (buzzing). If any of the voltages goes outside predetermined ranges then a reset is generated. The monitors are programmable to generate an interrupt to the processor under certain conditions before reaching the reset thresholds. External – The device can be reset from an external source by pulling the reset pin (XRES) low. The XRES pin includes an internal pull-up to VDDIO1. VDDD, VDDA, and VDDIO1 must all have voltage applied before the part comes out of reset. Watchdog timer – A watchdog timer monitors the execution of instructions by the processor. If the watchdog timer is not reset Document Number: 001-56955 Rev. *H Page 28 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet WRES – Watchdog Timer Reset The watchdog reset detects when the software program is no longer being executed correctly. To indicate to the watchdog timer that it is running correctly, the program must periodically reset the timer. If the timer is not reset before a user-specified amount of time, then a reset is generated. modes, with one exception: During sleep mode the regulators are periodically activated (buzzed) to provide supervisory services and to reduce wakeup time. At these times the PRES circuit is also buzzed to allow periodic voltage monitoring. ALVI, DLVI, AHVI – Analog/Digital Low Voltage Interrupt, Analog High Voltage Interrupt Interrupt circuits are available to detect when VDDA and VDDD go outside a voltage range. For AHVI, VDDA is compared to a fixed trip level. For ALVI and DLVI, VDDA and VDDD are compared to trip levels that are programmable, as listed in Table 6-5. ALVI and DLVI can also be configured to generate a device reset instead of an interrupt. Note IPOR disables the watchdog function. The program must enable the watchdog function at an appropriate point in the code by setting a register bit. When this bit is set, it cannot be cleared again except by an IPOR power-on reset event. 6.4 I/O System and Routing PSoC I/Os are extremely flexible. Every GPIO has analog and digital I/O capability. All I/Os have a large number of drive modes, which are set at POR. PSoC also provides up to four individual I/O voltage domains through the VDDIO pins. There are two types of I/O pins on every device; those with USB provide a third type. Both General Purpose I/O (GPIO) and Special I/O (SIO) provide similar digital functionality. The primary differences are their analog capability and drive strength. Devices that include USB also provide two USBIO pins that support specific USB functionality as well as limited GPIO capability. All I/O pins are available for use as digital inputs and outputs for both the CPU and digital peripherals. In addition, all I/O pins can generate an interrupt. The flexible and advanced capabilities of the PSoC I/O, combined with any signal to any pin routability, greatly simplify circuit design and board layout. All GPIO pins can be used for analog input, CapSense, and LCD segment drive, while SIO pins are used for voltages in excess of VDDA and for programmable output voltages. Features supported by both GPIO and SIO: User programmable port reset state Separate I/O supplies and voltages for up to four groups of I/O Digital peripherals use DSI to connect the pins Input or output or both for CPU and DMA Eight drive modes Every pin can be an interrupt source configured as rising edge, falling edge or both edges. If required, level sensitive interrupts are supported through the DSI Dedicated port interrupt vector for each port Slew rate controlled digital output drive mode Access port control and configuration registers on either port basis or pin basis Separate port read (PS) and write (DR) data registers to avoid read modify write errors Special functionality on a pin by pin basis Additional features only provided on the GPIO pins: LCD segment drive on LCD equipped devices CapSense Analog input and output capability Continuous 100 µA clamp current capability Standard drive strength down to 1.7 V Table 6-5. Analog/Digital Low Voltage Interrupt, Analog High Voltage Interrupt Interrupt Supply DLVI Normal Voltage Range Available Trip Accuracy Settings 1.70 V – 5.45 V in 250 mV increments 1.70 V – 5.45 V in 250 mV increments 5.75 V ±2% VDDD 1.71 V – 5.5 V VDDA 1.71 V – 5.5 V VDDA 1.71 V – 5.5 V ALVI ±2% AHVI ±2% The monitors are disabled until after IPOR. During sleep mode these circuits are periodically activated (buzzed). If an interrupt occurs during buzzing then the system first enters its wake up sequence. The interrupt is then recognized and may be serviced. 6.3.1.2 Other Reset Sources XRES – External Reset PSoC 3 has either a single GPIO pin that is configured as an external reset or a dedicated XRES pin. Either the dedicated XRES pin or the GPIO pin, if configured, holds the part in reset while held active (low). The response to an XRES is the same as to an IPOR reset. The external reset is active low. It includes an internal pull-up resistor. XRES is active during sleep and hibernate modes. SRES – Software Reset A reset can be commanded under program control by setting a bit in the software reset register. This is done either directly by the program or indirectly by DMA access. The response to a SRES is the same as after an IPOR reset. Another register bit exists to disable this function. DRES – Digital Logic Reset A logic signal can be routed from the UDBs or other digital peripheral source through the DSI to the Configurable XRES pin, P1[2], to generate a hardware-controlled reset. The pin must be placed in XRES mode. The response to a DRES is the same as after an IPOR reset. Document Number: 001-56955 Rev. *H Page 29 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet USBIO features: Full speed USB 2.0 compliant I/O Highest drive strength for general purpose use Input, output, or both for CPU and DMA Input, output, or both for digital peripherals Digital output (CMOS) drive mode Each pin can be an interrupt source configured as rising edge, falling edge, or both edges Additional features only provided on SIO pins: Higher drive strength than GPIO Hot swap capability (5 V tolerance at any operating VDD) Programmable and regulated high input and output drive levels down to 1.2 V No analog input, CapSense, or LCD capability Over voltage tolerance up to 5.5 V SIO can act as a general purpose analog comparator Figure 6-8. GPIO Block Diagram Digital Input Path PRT[x]CTL PRT[x]DBL_SYNC_IN PRT[x]PS Digital System Input PICU[x]INTTYPE[y] PICU[x]INTSTAT Pin Interrupt Signal PICU[x]INTSTAT Input Buffer Disable Interrupt Logic Naming Convention ‘x’ = Port Number ‘y’ = Pin Number Digital Output Path PRT[x]SLW PRT[x]SYNC_OUT PRT[x]DR Digital System Output PRT[x]BYP PRT[x]DM2 PRT[x]DM1 PRT[x]DM0 Bidirectional Control PRT[x]BIE Drive Logic Slew Cntl 0 1 Vddio Vddio In Vddio PIN OE Analog 1 0 1 0 1 Capsense Global Control CAPS[x]CFG1 PRT[x]AG Analog Global Enable PRT[x]AMUX Analog Mux Enable Switches LCD PRT[x]LCD_COM_SEG PRT[x]LCD_EN LCD Bias Bus 5 Display Data Logic & MUX Document Number: 001-56955 Rev. *H Page 30 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet Figure 6-9. SIO Input/Output Block Diagram Digital Input Path PRT[x]SIO_HYST_EN PRT[x]SIO_DIFF Reference Level PRT[x]DBL_SYNC_IN PRT[x]PS Digital System Input PICU[x]INTTYPE[y] PICU[x]INTSTAT Pin Interrupt Signal PICU[x]INTSTAT Input Buffer Disable Interrupt Logic Buffer Thresholds Naming Convention ‘x’ = Port Number ‘y’ = Pin Number Digital Output Path Reference Level PRT[x]SIO_CFG PRT[x]SLW PRT[x]SYNC_OUT PRT[x]DR Digital System Output PRT[x]BYP PRT[x]DM2 PRT[x]DM1 PRT[x]DM0 Bidirectional Control PRT[x]BIE Drive Logic Slew Cntl 0 1 Driver Vhigh In PIN OE Figure 6-10. USBIO Block Diagram Digital Input Path USB Receiver Circuitry PRT[x]DBL_SYNC_IN USBIO_CR1[0,1] Digital System Input PICU[x]INTTYPE[y] PICU[x]INTSTAT Pin Interrupt Signal PICU[x]INTSTAT Interrupt Logic Naming Convention ‘x’ = Port Number ‘y’ = Pin Number Digital Output Path PRT[x]SYNC_OUT USBIO_CR1[7] USB SIE Control for USB Mode USBIO_CR1[4,5] Digital System Output PRT[x]BYP USBIO_CR1[2] USBIO_CR1[3] USBIO_CR1[6] 0 1 D+ pin only USB or I/O Vddd Vddd Vddd Vddd In Drive Logic 5k 1.5 k PIN D+ 1.5 k D+D- 5 k Open Drain Document Number: 001-56955 Rev. *H Page 31 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet 6.4.1 Drive Modes Each GPIO and SIO pin is individually configurable into one of the eight drive modes listed in Table 6-6. Three configuration bits are used for each pin (DM[2:0]) and set in the PRTxDM[2:0] registers. Figure 6-11 depicts a simplified pin view based on each of the eight drive modes. Table 6-6 shows the I/O pin’s drive state based on the port data register value or digital array signal if bypass mode is selected. Note that the actual I/O pin voltage is determined by a combination of the selected drive mode and the load at the pin. For example, if a GPIO pin is configured for resistive pull-up mode and driven high while the pin is floating, the voltage measured at the pin is a high logic state. If the same GPIO pin is externally tied to ground then the voltage unmeasured at the pin is a low logic state. Figure 6-11. Drive Mode Vddio Vddio DR PS Pin DR PS Pin DR PS Pin DR PS Pin 0. High Impedance Analog 1. High Impedance Digital Vddio 2. Resistive Pull-Up Vddio 3. Resistive Pull-Down Vddio DR PS Pin DR PS Pin DR PS Pin DR PS Pin 4. Open Drain , Drives Low 5. Open Drain , Drives High 6. Strong Drive 7. Resistive Pull-Up and Pull-Down Table 6-6. Drive Modes Diagram 0 1 2 3 4 5 6 7 Drive Mode High impedence analog High Impedance digital Resistive pull-up[13] Resistive pull-down[13] Open drain, drives low Open drain, drive high Strong drive Resistive pull-up and pull-down[13] PRTxDM2 0 0 0 0 1 1 1 1 PRTxDM1 0 0 1 1 0 0 1 1 PRTxDM0 0 1 0 1 0 1 0 1 PRTxDR = 1 High Z High Z Res High (5K) Strong High High Z Strong High Strong High Res High (5K) PRTxDR = 0 High Z High Z Strong Low Res Low (5K) Strong Low High Z Strong Low Res Low (5K) Note 13. Resistive pull-up and pull-down are not available with SIO in regulated output mode. Document Number: 001-56955 Rev. *H Page 32 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet High Impedance Analog The default reset state with both the output driver and digital input buffer turned off. This prevents any current from flowing in the I/O’s digital input buffer due to a floating voltage. This state is recommended for pins that are floating or that support an analog voltage. High impedance analog pins do not provide digital input functionality. To achieve the lowest chip current in sleep modes, all I/Os must either be configured to the high impedance analog mode, or have their pins driven to a power supply rail by the PSoC device or by external circuitry. High Impedance Digital The input buffer is enabled for digital signal input. This is the standard high impedance (HiZ) state recommended for digital inputs. Resistive pull-up or resistive pull-down Resistive pull-up or pull-down, respectively, provides a series resistance in one of the data states and strong drive in the other. Pins can be used for digital input and output in these modes. Interfacing to mechanical switches is a common application for these modes. Resistive pull-up and pull-down are not available with SIO in regulated output mode. Open Drain, Drives High and Open Drain, Drives Low Open drain modes provide high impedance in one of the data states and strong drive in the other. Pins can be used for digital input and output in these modes. A common application for these modes is driving the I2C bus signal lines. Strong Drive Provides a strong CMOS output drive in either high or low state. This is the standard output mode for pins. Strong Drive mode pins must not be used as inputs under normal circumstances. This mode is often used to drive digital output signals or external FETs. Resistive pull-up and pull-down Similar to the resistive pull-up and resistive pull-down modes except the pin is always in series with a resistor. The high data state is pull-up while the low data state is pull-down. This mode is most often used when other signals that may cause shorts can drive the bus. Resistive pull-up and pull-down are not available with SIO in regulated output mode. 6.4.2 Pin Registers Registers to configure and interact with pins come in two forms that may be used interchangeably. All I/O registers are available in the standard port form, where each bit of the register corresponds to one of the port pins. This register form is efficient for quickly reconfiguring multiple port pins at the same time. I/O registers are also available in pin form, which combines the eight most commonly used port register bits into a single register for each pin. This enables very fast configuration changes to individual pins with a single register write. 6.4.3 Bidirectional Mode High-speed bidirectional capability allows pins to provide both the high impedance digital drive mode for input signals and a second user selected drive mode such as strong drive (set using PRT×DM[2:0] registers) for output signals on the same pin, based on the state of an auxiliary control bus signal. The bidirectional capability is useful for processor busses and communications interfaces such as the SPI Slave MISO pin that requires dynamic hardware control of the output buffer. The auxiliary control bus routes up to 16 UDB or digital peripheral generated output enable signals to one or more pins. 6.4.4 Slew Rate Limited Mode GPIO and SIO pins have fast and slow output slew rate options for strong and open drain drive modes, not resistive drive modes. Because it results in reduced EMI, the slow edge rate option is recommended for signals that are not speed critical, generally less than 1 MHz. The fast slew rate is for signals between 1 MHz and 33 MHz. The slew rate is individually configurable for each pin, and is set by the PRT×SLW registers. 6.4.5 Pin Interrupts All GPIO and SIO pins are able to generate interrupts to the system. All eight pins in each port interface to their own Port Interrupt Control Unit (PICU) and associated interrupt vector. Each pin of the port is independently configurable to detect rising edge, falling edge, both edge interrupts, or to not generate an interrupt. Depending on the configured mode for each pin, each time an interrupt event occurs on a pin, its corresponding status bit of the interrupt status register is set to “1” and an interrupt request is sent to the interrupt controller. Each PICU has its own interrupt vector in the interrupt controller and the pin status register providing easy determination of the interrupt source down to the pin level. Port pin interrupts remain active in all sleep modes allowing the PSoC device to wake from an externally generated interrupt. While level sensitive interrupts are not directly supported; Universal Digital Blocks (UDB) provide this functionality to the system when needed. 6.4.6 Input Buffer Mode GPIO and SIO input buffers can be configured at the port level for the default CMOS input thresholds or the optional LVTTL input thresholds. All input buffers incorporate Schmitt triggers for input hysteresis. Additionally, individual pin input buffers can be disabled in any drive mode. 6.4.7 I/O Power Supplies Up to four I/O pin power supplies are provided depending on the device and package. Each I/O supply must be less than or equal to the voltage on the chip’s analog (VDDA) pin. This feature allows users to provide different I/O voltage levels for different pins on the device. Refer to the specific device package pinout to determine VDDIO capability for a given port and pin. The SIO port pins support an additional regulated high output capability, as described in Adjustable Output Level. Document Number: 001-56955 Rev. *H Page 33 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet 6.4.8 Analog Connections These connections apply only to GPIO pins. All GPIO pins may be used as analog inputs or outputs. The analog voltage present on the pin must not exceed the VDDIO supply voltage to which the GPIO belongs. Each GPIO may connect to one of the analog global busses or to one of the analog mux buses to connect any pin to any internal analog resource such as ADC or comparators. In addition, one select pin provides direct connection to the high current DAC. 6.4.9 CapSense This section applies only to GPIO pins. All GPIO pins may be used to create CapSense buttons and sliders. See the “CapSense” section on page 51 for more information. 6.4.10 LCD Segment Drive This section applies only to GPIO pins. All GPIO pins may be used to generate Segment and Common drive signals for direct glass drive of LCD glass. See the “LCD Direct Drive” section on page 50 for details. 6.4.11 Adjustable Output Level This section applies only to SIO pins. SIO port pins support the ability to provide a regulated high output level for interface to external signals that are lower in voltage than the SIO’s respective VDDIO. SIO pins are individually configurable to output either the standard VDDIO level or the regulated output, which is based on an internally generated reference. Typically the voltage DAC (VDAC) is used to generate the reference (see Figure 6-12). The “DAC” section on page 52 has more details on VDAC use and reference routing to the SIO pins. Resistive pull-up and pull-down drive modes are not available with SIO in regulated output mode. 6.4.12 Adjustable Input Level This section applies only to SIO pins. SIO pins by default support the standard CMOS and LVTTL input levels but also support a differential mode with programmable levels. SIO pins are grouped into pairs. Each pair shares a reference generator block which, is used to set the digital input buffer reference level for interface to external signals that differ in voltage from VDDIO. The reference sets the pins voltage threshold for a high logic level (see Figure 6-12). Available input thresholds are: 0.5 × Vddio 0.4 × Vddio 0.5 × VREF VREF Typically the voltage DAC (VDAC) generates the VREF reference. The “DAC” section on page 52 has more details on VDAC use and reference routing to the SIO pins. Figure 6-12. SIO Reference for Input and Output Input Path Digital Input Vinref SIO_Ref Reference Generator PIN Voutref Output Path Driver Vhigh Digital Output Drive Logic 6.4.13 SIO as Comparator This section applies only to SIO pins. The adjustable input level feature of the SIOs as explained in the Adjustable Input Level section can be used to construct a comparator. The threshold for the comparator is provided by the SIO's reference generator. The reference generator has the option to set the analog signal routed through the analog global line as threshold for the comparator. Note that a pair of SIO pins share the same threshold. The digital input path in Figure 6-9 on page 31 illustrates this functionality. In the figure, ‘Reference level’ is the analog signal routed through the analog global. The hysteresis feature can also be enabled for the input buffer of the SIO, which increases noise immunity for the comparator. 6.4.14 Hot Swap This section applies only to SIO pins. SIO pins support ‘hot swap’ capability to plug into an application without loading the signals that are connected to the SIO pins even when no power is applied to the PSoC device. This allows the unpowered PSoC to maintain a high impedance load to the external device while also preventing the PSoC from being powered through a GPIO pin’s protection diode. Document Number: 001-56955 Rev. *H Page 34 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet Analog High current IDAC output External reference inputs 6.4.15 Over Voltage Tolerance All I/O pins provide an over voltage tolerance feature at any operating VDD. There are no current limitations for the SIO pins as they present a high impedance load to the external circuit where VDDIO < VIN < 5.5 V. The GPIO pins must be limited to 100 µA using a current limiting resistor. GPIO pins clamp the pin voltage to approximately one diode above the VDDIO supply where VDDIO < VIN < VDDA. In case of a GPIO pin configured for analog input/output, the analog voltage on the pin must not exceed the VDDIO supply voltage to which the GPIO belongs. A common application for this feature is connection to a bus such as I2C where different devices are running from different supply voltages. In the I2C case, the PSoC chip is configured into the Open Drain, Drives Low mode for the SIO pin. This allows an external pull-up to pull the I2C bus voltage above the PSoC pin supply. For example, the PSoC chip could operate at 1.8 V, and an external device could run from 5 V. Note that the SIO pin’s VIH and VIL levels are determined by the associated VDDIO supply pin. The I/O pin must be configured into a high impedance drive mode, open drain low drive mode, or pull-down drive mode, for over voltage tolerance to work properly. Absolute maximum ratings for the device must be observed for all I/O pins. 6.4.16 Reset Configuration While reset is active all I/Os are reset to and held in the High Impedance Analog state. After reset is released, the state can be reprogrammed on a port-by-port basis to pull-down or pull-up. To ensure correct reset operation, the port reset configuration data is stored in special nonvolatile registers. The stored reset data is automatically transferred to the port reset configuration registers at reset release. 6.4.17 Low-Power Functionality In all low-power modes the I/O pins retain their state until the part is awakened and changed or reset. To awaken the part, use a pin interrupt, because the port interrupt logic continues to function in all low-power modes. 6.4.18 Special Pin Functionality Some pins on the device include additional special functionality in addition to their GPIO or SIO functionality. The specific special function pins are listed in Pinouts on page 5. The special features are: Digital 4- to 33- MHz crystal oscillator 32.768-kHz crystal oscillator Wake from sleep on I2C address match. Any pin can be used for I2C if wake from sleep is not required. JTAG interface pins SWD interface pins SWV interface pins External reset 6.4.19 JTAG Boundary Scan The device supports standard JTAG boundary scan chains on all I/O pins for board level test. 7. Digital Subsystem The digital programmable system creates application specific combinations of both standard and advanced digital peripherals and custom logic functions. These peripherals and logic are then interconnected to each other and to any pin on the device, providing a high level of design flexibility and IP security. The features of the digital programmable system are outlined here to provide an overview of capabilities and architecture. You do not need to interact directly with the programmable digital system at the hardware and register level. PSoC Creator provides a high level schematic capture graphical interface to automatically place and route resources similar to PLDs. The main components of the digital programmable system are: Universal Digital Blocks (UDB) – These form the core functionality of the digital programmable system. UDBs are a collection of uncommitted logic (PLD) and structural logic (Datapath) optimized to create all common embedded peripherals and customized functionality that are application or design specific. Universal Digital Block Array – UDB blocks are arrayed within a matrix of programmable interconnect. The UDB array structure is homogeneous and allows for flexible mapping of digital functions onto the array. The array supports extensive and flexible routing interconnects between UDBs and the Digital System Interconnect. Digital System Interconnect (DSI) – Digital signals from Universal Digital Blocks (UDBs), fixed function peripherals, I/O pins, interrupts, DMA, and other system core signals are attached to the Digital System Interconnect to implement full featured device connectivity. The DSI allows any digital function to any pin or other feature routability when used with the Universal Digital Block Array. Document Number: 001-56955 Rev. *H Page 35 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet Figure 7-1. CY8C32 Digital Programmable Architecture Digital Core System and Fixed Function Peripherals IO Port I O Port 7.1.2 Example Analog Components The following is a sample of the analog components available in PSoC Creator for the CY8C32 family. The exact amount of hardware resources (routing, RAM, flash) used by a component varies with the features selected in PSoC Creator for the component. ADC Delta-sigma DACs Current Voltage PWM Comparators 7.1.3 Example System Function Components The following is a sample of the system function components available in PSoC Creator for the CY8C32 family. The exact amount of hardware resources (UDBs, routing, RAM, flash) used by a component varies with the features selected in PSoC Creator for the component. CapSense LCD Drive LCD Control 7.1.4 Designing with PSoC Creator 7.1.4.1 More Than a Typical IDE A successful design tool allows for the rapid development and deployment of both simple and complex designs. It reduces or eliminates any learning curve. It makes the integration of a new design into the production stream straightforward. PSoC Creator is that design tool. PSoC Creator is a full featured Integrated Development Environment (IDE) for hardware and software design. It is optimized specifically for PSoC devices and combines a modern, powerful software development platform with a sophisticated graphical design tool. This unique combination of tools makes PSoC Creator the most flexible embedded design platform available. Graphical design entry simplifies the task of configuring a particular part. You can select the required functionality from an extensive catalog of components and place it in your design. All components are parameterized and have an editor dialog that allows you to tailor functionality to your needs. PSoC Creator automatically configures clocks and routes the I/O to the selected pins and then generates APIs to give the application complete control over the hardware. Changing the PSoC device configuration is as simple as adding a new component, setting its parameters, and rebuilding the project. At any stage of development you are free to change the hardware configuration and even the target processor. To retarget your application (hardware and software) to new devices, even from 8- to 32-bit families, just select the new device and rebuild. You also have the ability to change the C compiler and evaluate an alternative. Components are designed for portability and are validated against all devices, from all families, and against all supported tool chains. Switching compilers is as easy as editing the from the project options and rebuilding the application with no errors from the generated APIs or boot code. Page 36 of 100 DSI Routing Interface UDB UDB UDB UDB UDB UDB UDB UDB UDB UDB UDB UDB UDB UDB UDB UDB UDB UDB UDB UDB UDB Array UDB UDB UDB UDB IO Port DSI Routing Interface IO Port Digital Core System and Fixed Function Peripherals 7.1 Example Peripherals The flexibility of the CY8C32 family’s Universal Digital Blocks (UDBs) and Analog Blocks allow the user to create a wide range of components (peripherals). The most common peripherals were built and characterized by Cypress and are shown in the PSoC Creator component catalog, however, users may also create their own custom components using PSoC Creator. Using PSoC Creator, users may also create their own components for reuse within their organization, for example sensor interfaces, proprietary algorithms, and display interfaces. The number of components available through PSoC Creator is too numerous to list in the datasheet, and the list is always growing. An example of a component available for use in CY8C32 family, but, not explicitly called out in this datasheet is the UART component. 7.1.1 Example Digital Components The following is a sample of the digital components available in PSoC Creator for the CY8C32 family. The exact amount of hardware resources (UDBs, routing, RAM, flash) used by a component varies with the features selected in PSoC Creator for the component. Communications I2C UART SPI Functions EMIF PWMs Timers Counters Logic NOT OR XOR AND Document Number: 001-56955 Rev. *H UDB Array [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet Figure 7-2. PSoC Creator Framework Document Number: 001-56955 Rev. *H Page 37 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet 7.1.4.2 Component Catalog 7.1.4.4 Software Development Figure 7-3. Component Catalog Figure 7-4. Code Editor Anchoring the tool is a modern, highly customizable user interface. It includes project management and integrated editors for C and assembler source code, as well the design entry tools. Project build control leverages compiler technology from top commercial vendors such as ARM® Limited, Keil™, and CodeSourcery (GNU). Free versions of Keil C51 and GNU C Compiler (GCC) for ARM, with no restrictions on code size or end product distribution, are included with the tool distribution. Upgrading to more optimizing compilers is a snap with support for the professional Keil C51 product and ARM RealView™ compiler. 7.1.4.5 Nonintrusive Debugging The component catalog is a repository of reusable design elements that select device functionality and customize your PSoC device. It is populated with an impressive selection of content; from simple primitives such as logic gates and device registers, through the digital timers, counters and PWMs, plus analog components such as ADC and DAC, and communication protocols, such as I2C, and USB. See Example Peripherals on page 36 for more details about available peripherals. All content is fully characterized and carefully documented in datasheets with code examples, AC/DC specifications, and user code ready APIs. 7.1.4.3 Design Reuse The symbol editor gives you the ability to develop reusable components that can significantly reduce future design time. Just draw a symbol and associate that symbol with your proven design. PSoC Creator allows for the placement of the new symbol anywhere in the component catalog along with the content provided by Cypress. You can then reuse your content as many times as you want, and in any number of projects, without ever having to revisit the details of the implementation. Figure 7-5. PSoC Creator Debugger With JTAG (4-wire) and SWD (2-wire) debug connectivity available on all devices, the PSoC Creator debugger offers full control over the target device with minimum intrusion. Breakpoints and code execution commands are all readily available from toolbar buttons and an impressive lineup of windows—register, locals, watch, call stack, memory and peripherals—make for an unparalleled level of visibility into the system. Document Number: 001-56955 Rev. *H Page 38 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet also contains input/output FIFOs, which are the primary parallel data interface between the CPU/DMA system and the UDB. Status and Control Module – The primary role of this block is to provide a way for CPU firmware to interact and synchronize with UDB operation. Clock and Reset Module – This block provides the UDB clocks and reset selection and control. PSoC Creator contains all the tools necessary to complete a design, and then to maintain and extend that design for years to come. All steps of the design flow are carefully integrated and optimized for ease-of-use and to maximize productivity. 7.2 Universal Digital Block The Universal Digital Block (UDB) represents an evolutionary step to the next generation of PSoC embedded digital peripheral functionality. The architecture in first generation PSoC digital blocks provides coarse programmability in which a few fixed functions with a small number of options are available. The new UDB architecture is the optimal balance between configuration granularity and efficient implementation. A cornerstone of this approach is to provide the ability to customize the devices digital operation to match application requirements. To achieve this, UDBs consist of a combination of uncommitted logic (PLD), structured logic (Datapath), and a flexible routing scheme to provide interconnect between these elements, I/O connections, and other peripherals. UDB functionality ranges from simple self contained functions that are implemented in one UDB, or even a portion of a UDB (unused resources are available for other functions), to more complex functions that require multiple UDBs. Examples of basic functions are timers, counters, CRC generators, PWMs, dead band generators, and communications functions, such as UARTs, SPI, and I2C. Also, the PLD blocks and connectivity provide full featured general purpose programmable logic within the limits of the available resources. 7.2.1 PLD Module The primary purpose of the PLD blocks is to implement logic expressions, state machines, sequencers, lookup tables, and decoders. In the simplest use model, consider the PLD blocks as a standalone resource onto which general purpose RTL is synthesized and mapped. The more common and efficient use model is to create digital functions from a combination of PLD and datapath blocks, where the PLD implements only the random logic and state portion of the function while the datapath (ALU) implements the more structured elements. Figure 7-7. PLD 12C4 Structure PT0 PT1 PT2 PT3 PT4 PT5 PT6 TC TC TC TC TC TC TC TC TC TC TC TC IN0 IN1 IN2 IN3 IN4 IN5 IN6 IN7 IN8 IN9 IN10 IN11 SELIN (carry in) TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC TC AND Array PT7 T T T T Figure 7-6. UDB Block Diagram PLD Chaining Clock and Reset Control PLD 12C4 (8 PTs) PLD 12C4 (8 PTs) OUT0 MC0 MC1 MC2 MC3 T T T T T T T T T T T T T T T T T T T T T T T T T T T T Status and Control OUT1 Datapath OUT2 Datapath Chaining OUT3 SELOUT (carry out) OR Array Routing Channel The main component blocks of the UDB are: PLD blocks – There are two small PLDs per UDB. These blocks take inputs from the routing array and form registered or combinational sum-of-products logic. PLDs are used to implement state machines, state bits, and combinational logic equations. PLD configuration is automatically generated from graphical primitives. Datapath Module – This 8-bit wide datapath contains structured logic to implement a dynamically configurable ALU, a variety of compare configurations and condition generation. This block One 12C4 PLD block is shown in Figure 7-7. This PLD has 12 inputs, which feed across eight product terms. Each product term (AND function) can be from 1 to 12 inputs wide, and in a given product term, the true (T) or complement (C) of each input can be selected. The product terms are summed (OR function) to create the PLD outputs. A sum can be from 1 to 8 product terms wide. The 'C' in 12C4 indicates that the width of the OR gate (in this case 8) is constant across all outputs (rather than variable as in a 22V10 device). This PLA like structure gives maximum flexibility and insures that all inputs and outputs are permutable for ease of allocation by the software tools. There are two 12C4 PLDs in each UDB. Document Number: 001-56955 Rev. *H Page 39 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet 7.2.2 Datapath Module The datapath contains an 8-bit single cycle ALU, with associated compare and condition generation logic. This datapath block is optimized to implement embedded functions, such as timers, counters, integrators, PWMs, PRS, CRC, shifters and dead band generators and many others. Figure 7-8. Datapath Top Level PHUB System Bus R/W Access to All Registers F1 FIFOs Datapath Control Control Store RAM 8 Word X 16 Bit Input from Programmable Routing Input Muxes 6 F0 A0 A1 D0 D1 Conditions: 2 Compares, 2 Zero Detect, 2 Ones Detect Overflow Detect Output Muxes 6 Output to Programmable Routing D1 Data Registers D0 A1 Accumulators A0 PI Parallel Input/Output (To/From Programmable Routing) PO To/From Previous Datapath Chaining To/From Next Datapath ALU Shift Mask 7.2.2.1 Working Registers The datapath contains six primary working registers, which are accessed by CPU firmware or DMA during normal operation. Table 7-1. Working Datapath Registers Name Function Description These are sources and sinks for the ALU and also sources for the compares. These are sources for the ALU and sources for the compares. These are the primary interface to the system bus. They can be a data source for the data registers and accumulators or they can capture data from the accumulators or ALU. Each FIFO is four bytes deep. A0 and A1 Accumulators D0 and D1 Data Registers F0 and F1 FIFOs 7.2.2.2 Dynamic Datapath Configuration RAM Dynamic configuration is the ability to change the datapath function and internal configuration on a cycle-by-cycle basis, under sequencer control. This is implemented using the 8-word × 16-bit configuration RAM, which stores eight unique 16-bit wide configurations. The address input to this RAM controls the sequence, and can be routed from any block connected to the UDB routing matrix, most typically PLD logic, I/O pins, or from the outputs of this or other datapath blocks. ALU The ALU performs eight general purpose functions. They are: Increment Decrement Add Subtract Logical AND Logical OR Logical XOR Pass, used to pass a value through the ALU to the shift register, mask, or another UDB register Page 40 of 100 Document Number: 001-56955 Rev. *H [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet Independent of the ALU operation, these functions are available: Shift left Shift right Nibble swap Bitwise OR mask 7.2.2.3 Conditionals Each datapath has two compares, with bit masking options. Compare operands include the two accumulators and the two data registers in a variety of configurations. Other conditions include zero detect, all ones detect, and overflow. These conditions are the primary datapath outputs, a selection of which can be driven out to the UDB routing matrix. Conditional computation can use the built in chaining to neighboring UDBs to operate on wider data widths without the need to use routing resources. 7.2.2.4 Variable MSB The most significant bit of an arithmetic and shift function can be programmatically specified. This supports variable width CRC and PRS functions, and in conjunction with ALU output masking, can implement arbitrary width timers, counters and shift blocks. 7.2.2.5 Built in CRC/PRS The datapath has built in support for single cycle Cyclic Redundancy Check (CRC) computation and Pseudo Random Sequence (PRS) generation of arbitrary width and arbitrary polynomial. CRC/PRS functions longer than 8 bits may be implemented in conjunction with PLD logic, or built in chaining may be use to extend the function into neighboring UDBs. 7.2.2.6 Input/Output FIFOs Each datapath contains two four-byte deep FIFOs, which can be independently configured as an input buffer (system bus writes to the FIFO, datapath internal reads the FIFO), or an output buffer (datapath internal writes to the FIFO, the system bus reads from the FIFO). The FIFOs generate status that are selectable as datapath outputs and can therefore be driven to the routing, to interact with sequencers, interrupts, or DMA. 7.2.2.7 Chaining The datapath can be configured to chain conditions and signals such as carries and shift data with neighboring datapaths to create higher precision arithmetic, shift, CRC/PRS functions. 7.2.2.8 Time Multiplexing In applications that are over sampled, or do not need high clock rates, the single ALU block in the datapath can be efficiently shared with two sets of registers and condition generators. Carry and shift out data from the ALU are registered and can be selected as inputs in subsequent cycles. This provides support for 16-bit functions in one (8-bit) datapath. 7.2.2.9 Datapath I/O There are six inputs and six outputs that connect the datapath to the routing matrix. Inputs from the routing provide the configuration for the datapath operation to perform in each cycle, and the serial data inputs. Inputs can be routed from other UDB blocks, other device peripherals, device I/O pins, and so on. The outputs to the routing can be selected from the generated conditions, and the serial data outputs. Outputs can be routed to other UDB blocks, device peripherals, interrupt and DMA controller, I/O pins, and so on. 7.2.3 Status and Control Module The primary purpose of this circuitry is to coordinate CPU firmware interaction with internal UDB operation. Figure 7-10. Status and Control Registers System Bus 8-bit Status Register (Read Only) 8-bit Control Register (Write/Read) Routing Channel Figure 7-9. Example FIFO Configurations System Bus System Bus F0 F0 F1 The bits of the control register, which may be written to by the system bus, are used to drive into the routing matrix, and thus provide firmware with the opportunity to control the state of UDB processing. The status register is read-only and it allows internal UDB state to be read out onto the system bus directly from internal routing. This allows firmware to monitor the state of UDB processing. Each bit of these registers has programmable connections to the routing matrix and routing connections are made depending on the requirements of the application. 7.2.3.1 Usage Examples As an example of control input, a bit in the control register can be allocated as a function enable bit. There are multiple ways to enable a function. In one method the control bit output would be routed to the clock control block in one or more UDBs and serve as a clock enable for the selected UDB blocks. A status example is a case where a PLD or datapath block generated a condition, such as a “compare true” condition that is captured and latched by the status register and then read (and cleared) by CPU firmware. D0/D1 A0/A1/ALU A0/A1/ALU A0/A1/ALU D0 A0 D1 A1 F1 F0 F1 System Bus TX/RX System Bus Dual Capture Dual Buffer Document Number: 001-56955 Rev. *H Page 41 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet 7.2.3.2 Clock Generation Each subcomponent block of a UDB including the two PLDs, the datapath, and Status and Control, has a clock selection and control block. This promotes a fine granularity with respect to allocating clocking resources to UDB component blocks and allows unused UDB resources to be used by other functions for maximum system efficiency. 7.3 UDB Array Description Figure 7-11 shows an example of a 16 UDB array. In addition to the array core, there are a DSI routing interfaces at the top and bottom of the array. Other interfaces that are not explicitly shown include the system interfaces for bus and clock distribution. The UDB array includes multiple horizontal and vertical routing channels each comprised of 96 wires. The wire connections to UDBs, at horizontal/vertical intersection and at the DSI interface are highly permutable providing efficient automatic routing in PSoC Creator. Additionally the routing allows wire by wire segmentation along the vertical and horizontal routing to further increase routing flexibility and capability. An example of this is the 8-bit Timer in the upper left corner of the array. This function only requires one datapath in the UDB, and therefore the PLD resources may be allocated to another function. A function such as a Quadrature Decoder may require more PLD logic than one UDB can supply and in this case can utilize the unused PLD blocks in the 8-bit Timer UDB. Programmable resources in the UDB array are generally homogeneous so functions can be mapped to arbitrary boundaries in the array. Figure 7-12. Function Mapping Example in a Bank of UDBs Sequencer 8-Bit Timer Quadrature Decoder UDB UDB 16-Bit PWM UDB 16-Bit PYRS UDB HV A HV B HV A HV B UDB I2C Slave UDB UDB 8-Bit SPI UDB Figure 7-11. Digital System Interface Structure System Connections UDB 8-Bit Timer Logic 12-Bit SPI UDB UDB UDB HV B HV A HV B HV A HV B HV A Logic HV B HV A UDB UDB UDB UDB UDB UDB UDB 12-Bit PWM UDB HV A HV B HV A HV B UART UDB UDB UDB UDB 7.4 DSI Routing Interface Description The DSI routing interface is a continuation of the horizontal and vertical routing channels at the top and bottom of the UDB array core. It provides general purpose programmable routing between device peripherals, including UDBs, I/Os, analog peripherals, interrupts, DMA and fixed function peripherals. Figure 7-13 illustrates the concept of the digital system interconnect, which connects the UDB array routing matrix with other device peripherals. Any digital core or fixed function peripheral that needs programmable routing is connected to this interface. Signals in this category include: Interrupt requests from all digital peripherals in the system. DMA requests from all digital peripherals in the system. Digital peripheral data signals that need flexible routing to I/Os. Digital peripheral data signals that need connections to UDBs. Connections to the interrupt and DMA controllers. Connection to I/O pins. Connection to analog system digital signals. UDB UDB UDB UDB HV B HV A HV B HV A UDB UDB UDB UDB HV A HV B HV A HV B System Connections 7.3.1 UDB Array Programmable Resources Figure 7-12 shows an example of how functions are mapped into a bank of 16 UDBs. The primary programmable resources of the UDB are two PLDs, one datapath and one status/control register. These resources are allocated independently, because they have independently selectable clocks, and therefore unused blocks are allocated to other unrelated functions. Document Number: 001-56955 Rev. *H Page 42 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet Figure 7-13. Digital System Interconnect Tim ers C ounters I2C Interrupt C ontroller DMA C ontroller IO Port Pins G lobal C locks conjunction with drive strength control, this can implement a bidirectional I/O pin. A data output signal has the option to be single synchronized (pipelined) and a data input signal has the option to be double synchronized. The synchronization clock is the system clock (see Figure 6-1). Normally all inputs from pins are synchronized as this is required if the CPU interacts with the signal or any signal derived from it. Asynchronous inputs have rare uses. An example of this is a feed through of combinational PLD logic from input pins to output pins. D igital S ystem R outing I/F Figure 7-15. I/O Pin Synchronization Routing UDB ARRAY DO DI D igital S ystem R outing I/F Figure 7-16. I/O Pin Output Connectivity 8 IO Data Output Connections from the UDB Array Digital System Interface G lobal C locks I/O P ort Pins EM IF D el-Sig D AC C om parators Interrupt and DMA routing is very flexible in the CY8C32 programmable architecture. In addition to the numerous fixed function peripherals that can generate interrupt requests, any data signal in the UDB array routing can also be used to generate a request. A single peripheral may generate multiple independent interrupt requests simplifying system and firmware design. Figure 7-14 shows the structure of the IDMUX (Interrupt/DMA Multiplexer). DO PIN 0 DO PIN1 DO PIN2 DO PIN3 DO PIN4 DO PIN5 DO PIN6 DO PIN7 Figure 7-14. Interrupt and DMA Processing in the IDMUX Interrupt and DMA Processing in IDMUX Fixed Function IRQs Port i 0 1 IRQs 2 Edge Detect DRQs DMA termout (IRQs) 0 1 Edge Detect 2 DMA Controller 3 Interrupt Controller There are four more DSI connections to a given I/O port to implement dynamic output enable control of pins. This connectivity gives a range of options, from fully ganged 8-bits controlled by one signal, to up to four individually controlled pins. The output enable signal is useful for creating tri-state bidirectional pins and buses. UDB Array Figure 7-17. I/O Pin Output Enable Connectivity 4 IO Control Signal Connections from UDB Array Digital System Interface Fixed Function DRQs 7.4.1 I/O Port Routing There are a total of 20 DSI routes to a typical 8-bit I/O port, 16 for data and four for drive strength control. When an I/O pin is connected to the routing, there are two primary connections available, an input and an output. In OE PIN 0 OE PIN1 OE PIN2 OE PIN3 OE PIN4 OE PIN5 OE PIN6 OE PIN7 Port i Document Number: 001-56955 Rev. *H Page 43 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet 7.5 USB PSoC includes a dedicated Full-Speed (12 Mbps) USB 2.0 transceiver supporting all four USB transfer types: control, interrupt, bulk, and isochronous. PSoC Creator provides full configuration support. USB interfaces to hosts through two dedicated USBIO pins, which are detailed in the “I/O System and Routing” section on page 29. USB includes the following features: Eight unidirectional data endpoints One bidirectional control endpoint 0 (EP0) Shared 512-byte buffer for the eight data endpoints Dedicated 8-byte buffer for EP0 Three memory modes Manual Memory Management with No DMA Access Manual Memory Management with Manual DMA Access Automatic Memory Management with Automatic DMA Access Internal 3.3 V regulator for transceiver Internal 48 MHz main oscillator mode that auto locks to USB bus clock, requiring no external crystal for USB (USB equipped parts only) Interrupts on bus and each endpoint event, with device wakeup USB Reset, Suspend, and Resume operations Bus powered and self powered modes output, terminal count output (optional complementary compare output), and programmable interrupt request line. The Timer/Counter/PWMs are configurable as free running, one shot, or Enable input controlled. The peripheral has timer reset and capture inputs, and a kill input for control of the comparator outputs. The peripheral supports full 16-bit capture. Timer/Counter/PWM features include: 16-bit Timer/Counter/PWM (down count only) Selectable clock source PWM comparator (configurable for LT, LTE, EQ, GTE, GT) Period reload on start, reset, and terminal count Interrupt on terminal count, compare true, or capture Dynamic counter reads Timer capture mode Count while enable signal is asserted mode Free run mode One Shot mode (stop at end of period) Complementary PWM outputs with deadband PWM output kill Figure 7-19. Timer/Counter/PWM Clock Reset Enable Capture Kill IRQ TC / Compare! Compare Figure 7-18. USB Arbiter System Bus 512 X 8 SRAM D+ SIE (Serial Interface Engine) Interrupts 48 MHz IMO USB I/O D– External 22 Ω Resistors Timer / Counter / PWM 16-bit 7.7 I2C The I2C peripheral provides a synchronous two wire interface designed to interface the PSoC device with a two wire I2C serial communication bus. The bus is compliant with Philips ‘The I2C Specification’ version 2.1. Additional I2C interfaces can be instantiated using Universal Digital Blocks (UDBs) in PSoC Creator, as required. To eliminate the need for excessive CPU intervention and overhead, I2C specific support is provided for status detection and generation of framing bits. I2C operates as a slave, a master, or multimaster (Slave and Master). In slave mode, the unit always listens for a start condition to begin sending or receiving data. Master mode supplies the ability to generate the Start and Stop conditions and initiate transactions. Multimaster mode provides clock synchronization and arbitration to allow multiple masters on the same bus. If Master mode is enabled and Slave mode is not enabled, the block does not generate interrupts on externally generated Start conditions. I2C interfaces through the DSI routing and allows direct connections to any GPIO or SIO pins. I2C provides hardware address detect of a 7-bit address without CPU intervention. Additionally the device can wake from low-power modes on a 7-bit hardware address match. If wakeup functionality is required, I2C pin connections are limited to the two special sets of SIO pins. Page 44 of 100 7.6 Timers, Counters, and PWMs The Timer/Counter/PWM peripheral is a 16-bit dedicated peripheral providing three of the most common embedded peripheral features. As almost all embedded systems use some combination of timers, counters, and PWMs. Four of them have been included on this PSoC device family. Additional and more advanced functionality timers, counters, and PWMs can also be instantiated in Universal Digital Blocks (UDBs) as required. PSoC Creator allows you to choose the timer, counter, and PWM features that they require. The tool set utilizes the most optimal resources available. The Timer/Counter/PWM peripheral can select from multiple clock sources, with input and output signals connected through the DSI routing. DSI routing allows input and output connections to any device pin and any internal digital signal accessible through the DSI. Each of the four instances has a compare Document Number: 001-56955 Rev. *H [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet I2C features include: Slave and Master, Transmitter, and Receiver operation Byte processing for low CPU overhead Interrupt or polling CPU interface Support for bus speeds up to 1 Mbps (3.4 Mbps in UDBs) 7 or 10-bit addressing (10-bit addressing requires firmware support) SMBus operation (through firmware support – SMBus supported in hardware in UDBs) 7-bit hardware address compare Wake from low-power modes on address match 8. Analog Subsystem The analog programmable system creates application specific combinations of both standard and advanced analog signal processing blocks. These blocks are then interconnected to each other and also to any pin on the device, providing a high level of design flexibility and IP security. The features of the analog subsystem are outlined here to provide an overview of capabilities and architecture. Flexible, configurable analog routing architecture provided by analog globals, analog mux bus, and analog local buses. High resolution delta-sigma ADC. One 8-bit DAC that provides either voltage or current output. Two comparators with optional connection to configurable LUT outputs. CapSense subsystem to enable capacitive touch sensing. Precision reference for generating an accurate analog voltage for internal analog blocks. Figure 8-1. Analog Subsystem Block Diagram A N A L O G R O U T I N G DAC Precision Reference A N A L O G R O U T I N G DelSig ADC Comparators CMP CMP GPIO Port GPIO Port CapSense Subsystem Analog Interface Config & Status Registers PHUB CPU DSI Array Clock Distribution Decimator The PSoC Creator software program provides a user friendly interface to configure the analog connections between the GPIO and various analog resources and connections from one analog resource to another. PSoC Creator also provides component libraries that allow you to configure the various analog blocks to perform application specific functions. The tool also generates API interface libraries that allow you to write firmware that allows the communication between the analog peripheral and CPU/Memory. Document Number: 001-56955 Rev. *H Page 45 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet Eight analog local buses (abus) to route signals between the different analog blocks Multiplexers and switches for input and output selection of the analog blocks 8.1 Analog Routing The CY8C32 family of devices has a flexible analog routing architecture that provides the capability to connect GPIOs and different analog blocks, and also route signals between different analog blocks. One of the strong points of this flexible routing architecture is that it allows dynamic routing of input and output connections to the different analog blocks. 8.1.1 Features Flexible, configurable analog routing architecture 16 analog globals (AG) and two analog mux buses (AMUXBUS) to connect GPIOs and the analog blocks Each GPIO is connected to one analog global and one analog mux bus 8.1.2 Functional Description Analog globals (AGs) and analog mux buses (AMUXBUS) provide analog connectivity between GPIOs and the various analog blocks. There are 16 AGs in the CY8C32 family. The analog routing architecture is divided into four quadrants as shown in Figure 8-2. Each quadrant has four analog globals (AGL[0..3], AGL[4..7], AGR[0..3], AGR[4..7]). Each GPIO is connected to the corresponding AG through an analog switch. The analog mux bus is a shared routing resource that connects to every GPIO through an analog switch. There are two AMUXBUS routes in CY8C32, one in the left half (AMUXBUSL) and one in the right half (AMUXBUSR), as shown in Figure 8-2. Document Number: 001-56955 Rev. *H Page 46 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet Figure 8-2. CY8C32 Analog Interconnect Vdda Vssa Vcca Vssd swinn swinp AMUXBUSL AGL[4] AGL[5] AGL[6] AGL[7] AMUXBUSR AGR[4] AGR[5] AGR[6] AGR[7] 44 * * AMUXBUSL AGL[4] AGL[5] AGL[6] AGL[7] ExVrefL ExVrefL1 ExVrefL2 GPIO P0[4] GPIO P0[5] GPIO P0[6] GPIO P0[7] GPIO P4[2] GPIO P4[3] GPIO P4[4] GPIO P4[5] GPIO P4[6] GPIO P4[7] Vccd Vssd 01 2 3 4 56 7 0123 3210 76543210 * * i0 swout swin in0 out0 + comp0 LPF 5 in1 out1 comp1 + swin swout cmp1_vref cmp0_vref (1.024V) vref_cmp1 (0.256V) bg_vda_res_en Vdda Vdda/2 refbuf_vref1 (1.024V) refbuf_vref2 (1.2V) cmp_muxvn[1:0] COMPARATOR 90 bg_vda_swabusl0 cmp1_vref refbufr_ cmp refbufl_ cmp cmp0_vref (1.024V) cmp1_vref AGR[7] AGR[6] AGR[5] vssa Vssa AGR[4] AMUXBUSR refsel[1:0] out ref in refbufl CAPSENSE refbufr out ref in refbuf_vref1 (1.024V) refbuf_vref2 (1.2V) refsel[1:0] ABUSL0 ABUSL1 ABUSL2 ABUSL3 v0 DAC0 i0 ABUSR0 ABUSR1 ABUSR2 ABUSR3 Vddd AGL[1] AGL[2] AGL[3] Vddio2 AMUXBUSL AGL[0] : TS ADC VBE Vss ref LPF AGL[3] AGL[2] AGL[1] AGL[0] AMUXBUSL AGR[3] AGR[2] AGR[1] AGR[0] AMUXBUSR Connection Vboost Switch Resistance Small ( ~870 Ohms ) Large ( ~200 Ohms) Vssb Vssd XRES Vbat Ind Notes: * Denotes pins on all packages LCD signals are not shown. Rev #51 2-April-2010 Document Number: 001-56955 Rev. *H Vddio1 GPIO P2[5] GPIO P2[6] GPIO P2[7] SIO P12[4] SIO P12[5] GPIO P6[4] GPIO P6[5] GPIO P6[6] GPIO P6[7] GPIO P5[0] GPIO P5[1] GPIO P5[2] GPIO P5[3] GPIO P1[0] GPIO P1[1] GPIO P1[2] GPIO P1[3] GPIO P1[4] GPIO P1[5] Mux Group Switch Group * * * * * * * * 13 AMUXBUSR AGR[3] AGR[2] AGR[1] AGR[0] GPIO P6[0] GPIO P6[1] GPIO P6[2] GPIO P6[3] GPIO P15[4] GPIO P15[5] GPIO P2[0] GPIO P2[1] GPIO P2[2] GPIO P2[3] * GPIO P2[4] * VIDAC 36 vcmsel[1:0] en_resvpwra vpwra vpwra/2 dsm0_vcm_vref1 (0.8V) dsm0_vcm_vref2 (0.7V) dsm0_qtz_vref2 (1.2V) dsm0_qtz_vref1 (1.024V) Vdda Vdda/4 en_resvda vssa + DSM0 - DSM 28 vcm refs qtz_ref vref_vss_ext refmux[2:0] ExVrefL ExVrefR AMUXBUSL 01 234 56 7 0123 ANALOG ANALOG GLOBALS BUS ANALOG ANALOG BUS GLOBALS 3210 76543210 AMUXBUSR * * * * * * * * * * * * * * * * * * * * * Vddio0 Vddio3 GPIO P3[6] GPIO P3[7] SIO P12[0] SIO P12[1] GPIO P15[2] GPIO P15[3] SIO P12[2] SIO P12[3] GPIO P4[0] GPIO P4[1] GPIO P0[0] GPIO P0[1] GPIO P0[2] GPIO P0[3] * ExVrefR GPIO P3[5] GPIO P3[4] GPIO P3[3] GPIO P3[2] GPIO P3[1] GPIO P3[0] GPXT * P15[1] GPXT * P15[0] * * * * * * Vccd Vssd Vddd * P15[7] * P15[6] GPIO P5[7] GPIO P5[6] GPIO P5[5] GPIO P5[4] SIO P12[7] SIO P12[6] GPIO * P1[7] GPIO * P1[6] USB IO USB IO Page 47 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet Analog local buses (abus) are routing resources located within the analog subsystem and are used to route signals between different analog blocks. There are eight abus routes in CY8C32, four in the left half (abusl [0:3]) and four in the right half (abusr [0:3]) as shown in Figure 8-2. Using the abus saves the analog globals and analog mux buses from being used for interconnecting the analog blocks. Multiplexers and switches exist on the various buses to direct signals into and out of the analog blocks. A multiplexer can have only one connection on at a time, whereas a switch can have multiple connections on simultaneously. In Figure 8-2, multiplexers are indicated by grayed ovals and switches are indicated by transparent ovals. the input and generates a serial data stream output. This high speed data stream is not useful for most applications without some type of post processing, and so is passed to the decimator through the Analog Interface block. The decimator converts the high speed serial data stream into parallel ADC results. The modulator/decimator frequency response is [(sin x)/x]4; a typical frequency response is shown in Figure 8-5. Figure 8-4. Delta-sigma ADC Block Diagram Positive Input Mux (Analog Routing) Negative Input Mux Input Buffer Delta Sigma Modulator Decimator 8.2 Delta-sigma ADC The CY8C32 device contains one delta-sigma ADC. This ADC offers differential input, high resolution and excellent linearity, making it a good ADC choice for measurement applications. The converter can be configured to output 12-bit resolution at data rates of up to 192 ksps. At a fixed clock rate, resolution can be traded for faster data rates as shown in Table 8-1 and Figure 8-3. 12 to 20 Bit Result EOC SOC Figure 8-5. Delta-sigma ADC Frequency Response, Normalized to Output, Sample Rate = 48 kHz 0 Table 8-1. Delta-sigma ADC Performance Bits 12 8 -10 Maximum Sample Rate (sps) 192 k 384 k SINAD (dB) frequency Response. dB -20 -30 -40 -50 -60 -70 -80 -90 -100 100 1,000 10,000 Input Frequency, Hz 66 43 Figure 8-3. Delta-sigma ADC Sample Rates, Range = ±1.024 V 1,000,000 100,000 1,000,000 100,000 Input frequency, Hz Sample rates, sps 10,000 Resolution and sample rate are controlled by the Decimator. Data is pipelined in the decimator; the output is a function of the last four samples. When the input multiplexer is switched, the output data is not valid until after the fourth sample after the switch. 8.2.2 Operational Modes Continuous M -Sam ulti ple 1,000 Resolution, bits 100 7 8 9 10 11 12 13 Resolution, bits 8.2.1 Functional Description The ADC connects and configures three basic components, input buffer, delta-sigma modulator, and decimator. The basic block diagram is shown in Figure 8-4. The signal from the input muxes is delivered to the delta-sigma modulator either directly or through the input buffer. The delta-sigma modulator performs the actual analog to digital conversion. The modulator over-samples Document Number: 001-56955 Rev. *H The ADC can be configured by the user to operate in one of four modes: Single Sample, Multi Sample, Continous, or Multi Sample (Turbo). All four modes are started by either a write to the start bit in a control register or an assertion of the Start of Conversion (SoC) signal. When the conversion is complete, a status bit is set and the output signal End of Conversion (EoC) asserts high and remains high until the value is read by either the DMA controller or the CPU. 8.2.2.1 Single Sample In Single Sample mode, the ADC performs one sample conversion on a trigger. In this mode, the ADC stays in standby state waiting for the SoC signal to be asserted. When SoC is signaled the ADC performs four successive conversions. The Page 48 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet first three conversions prime the decimator. The ADC result is valid and available after the fourth conversion, at which time the EoC signal is generated. To detect the end of conversion, the system may poll a control register for status or configure the external EoC signal to generate an interrupt or invoke a DMA request. When the transfer is done the ADC reenters the standby state where it stays until another SoC event. 8.2.2.2 Continuous Continuous sample mode is used to take multiple successive samples of a single input signal. Multiplexing multiple inputs should not be done with this mode. There is a latency of three conversion times before the first conversion result is available. This is the time required to prime the decimator. After the first result, successive conversions are available at the selected sample rate. 8.2.2.3 Multi Sample Multi sample mode is similar to continuous mode except that the ADC is reset between samples. This mode is useful when the input is switched between multiple signals. The decimator is re-primed between each sample so that previous samples do not affect the current conversion. Upon completion of a sample, the next sample is automatically initiated. The results can be transferred using either firmware polling, interrupt, or DMA. More information on output formats is provided in the Technical Reference Manual. 8.2.3 Start of Conversion Input The SoC signal is used to start an ADC conversion. A digital clock or UDB output can be used to drive this input. It can be used when the sampling period must be longer than the ADC conversion time or when the ADC must be synchronized to other hardware. This signal is optional and does not need to be connected if ADC is running in a continuous mode. 8.2.4 End of Conversion Output The EoC signal goes high at the end of each ADC conversion. This signal may be used to trigger either an interrupt or DMA request. 8.3 Comparators The CY8C32 family of devices contains two comparators in a device. Comparators have these features: Input offset factory trimmed to less than 5 mV Rail-to-rail common mode input range (VSSA to VDDA) Speed and power can be traded off by using one of three modes: fast, slow, or ultra low-power Comparator outputs can be routed to lookup tables to perform simple logic functions and then can also be routed to digital blocks The positive input of the comparators may be optionally passed through a low pass filter. Two filters are provided Comparator inputs can be connections to GPIO or DAC output 8.3.1 Input and Output Interface The positive and negative inputs to the comparators come from the analog global buses, the analog mux line, the analog local bus and precision reference through multiplexers. The output from each comparator could be routed to any of the two input LUTs. The output of that LUT is routed to the UDB Digital System Interface. Document Number: 001-56955 Rev. *H Page 49 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet Figure 8-6. Analog Comparator From Analog Routing + comp0 _ ANAIF + comp1 _ From Analog Routing 4 4 4 4 4 4 4 4 LUT0 LUT1 LUT2 LUT3 UDBs 8.3.2 LUT The CY8C32 family of devices contains four LUTs. The LUT is a two input, one output lookup table that is driven by any one or two of the comparators in the chip. The output of any LUT is routed to the digital system interface of the UDB array. From the digital system interface of the UDB array, these signals can be connected to UDBs, DMA controller, I/O, or the interrupt controller. The LUT control word written to a register sets the logic function on the output. The available LUT functions and the associated control word is shown in Table 8-2. Table 8-2. LUT Function vs. Program Word and Inputs Control Word 0000b 0001b 0010b 0011b 0100b 0101b 0110b 0111b 1000b 1001b 1010b 1011b 1100b 1101b 1110b 1111b Output (A and B are LUT inputs) FALSE (‘0’) A AND B A AND (NOT B) A (NOT A) AND B B A XOR B A OR B A NOR B A XNOR B NOT B A OR (NOT B) NOT A (NOT A) OR B A NAND B TRUE (‘1’) 8.4 LCD Direct Drive The PSoC Liquid Crystal Display (LCD) driver system is a highly configurable peripheral designed to allow PSoC to directly drive a broad range of LCD glass. All voltages are generated on chip, eliminating the need for external components. With a high Document Number: 001-56955 Rev. *H Page 50 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet multiplex ratio of up to 1/16, the CY8C32 family LCD driver system can drive a maximum of 736 segments. The PSoC LCD driver module was also designed with the conservative power budget of portable devices in mind, enabling different LCD drive modes and power down modes to conserve power. PSoC Creator provides an LCD segment drive component. The component wizard provides easy and flexible configuration of LCD resources. You can specify pins for segments and commons along with other options. The software configures the device to meet the required specifications. This is possible because of the programmability inherent to PSoC devices. Key features of the PSoC LCD segment system are: LCD panel direct driving Type A (standard) and Type B (low-power) waveform support Wide operating voltage range support (2 V to 5 V) for LCD panels Static, 1/2, 1/3, 1/4, 1/5 bias voltage levels Internal bias voltage generation through internal resistor ladder Up to 62 total common and segment outputs Up to 1/16 multiplex for a maximum of 16 backplane/common outputs Up to 62 front plane/segment outputs for direct drive Drives up to 736 total segments (16 backplane × 46 front plane) Up to 64 levels of software controlled contrast Ability to move display data from memory buffer to LCD driver through DMA (without CPU intervention) Adjustable LCD refresh rate from 10 Hz to 150 Hz Ability to invert LCD display for negative image Three LCD driver drive modes, allowing power optimization 8.4.1 LCD Segment Pin Driver Each GPIO pin contains an LCD driver circuit. The LCD driver buffers the appropriate output of the LCD DAC to directly drive the glass of the LCD. A register setting determines whether the pin is a common or segment. The pin’s LCD driver then selects one of the six bias voltages to drive the I/O pin, as appropriate for the display data. 8.4.2 Display Data Flow The LCD segment driver system reads display data and generates the proper output voltages to the LCD glass to produce the desired image. Display data resides in a memory buffer in the system SRAM. Each time you need to change the common and segment driver voltages, the next set of pixel data moves from the memory buffer into the Port Data Registers via DMA. 8.4.3 UDB and LCD Segment Control A UDB is configured to generate the global LCD control signals and clocking. This set of signals is routed to each LCD pin driver through a set of dedicated LCD global routing channels. In addition to generating the global LCD control signals, the UDB also produces a DMA request to initiate the transfer of the next frame of LCD data. 8.4.4 LCD DAC The LCD DAC generates the contrast control and bias voltage for the LCD system. The LCD DAC produces up to five LCD drive voltages plus ground, based on the selected bias ratio. The bias voltages are driven out to GPIO pins on a dedicated LCD bias bus, as required. 8.5 CapSense The CapSense system provides a versatile and efficient means for measuring capacitance in applications such as touch sense buttons, sliders, proximity detection, etc. The CapSense system uses a configuration of system resources, including a few hardware functions primarily targeted for CapSense. Specific resource usage is detailed in each CapSense component in PSoC Creator. A capacitive sensing method using a delta-sigma modulator (CSD) is used. It provides capacitance sensing using a switched capacitor technique with a delta-sigma modulator to convert the sensing current to a digital code. Figure 8-7. LCD System Global Clock LCD DAC UDB LCD Driver Block DMA Display RAM PIN 8.6 Temp Sensor Die temperature is used to establish programming parameters for writing flash. Die temperature is measured using a dedicated sensor based on a forward biased transistor. The temperature sensor has its own auxiliary ADC. PHUB Document Number: 001-56955 Rev. *H Page 51 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet Source and sink option for current output 8 Msps conversion rate for current output 1 Msps conversion rate for voltage output Monotonic in nature Data and strobe inputs can be provided by the CPU or DMA, or routed directly from the DSI Dedicated low-resistance output pin for high-current mode 8.7 DAC The CY8C32 parts contain a Digital to Analog Converter (DAC). The DAC is 8-bit and can be configured for either voltage or current output. The DAC supports CapSense, power supply regulation, and waveform generation. The DAC has the following features: Adjustable voltage or current output in 255 steps Programmable step size (range selection) Eight bits of calibration to correct ± 25 percent of gain error Figure 8-8. DAC Block Diagram I source  Range  1x , 8x , 64x Reference  Source  Scaler   Vout  R    3R     I sink  Range     1x , 8x , 64x    Iout    8.7.1 Current DAC The current DAC (IDAC) can be configured for the ranges 0 to 32 µA, 0 to 256 µA, and 0 to 2.048 mA. The IDAC can be configured to source or sink current. 8.7.2 Voltage DAC For the voltage DAC (VDAC), the current DAC output is routed through resistors. The two ranges available for the VDAC are 0 to 1.024 V and 0 to 4.096 V. In voltage mode any load connected to the output of a DAC should be purely capacitive (the output of the VDAC is not buffered). The PSoC Creator IDE software provides fully integrated programming and debug support for PSoC devices. The low cost MiniProg3 programmer and debugger is designed to provide full programming and debug support of PSoC devices in conjunction with the PSoC Creator IDE. PSoC JTAG, SWD, and SWV interfaces are fully compatible with industry standard third party tools. All DOC circuits are disabled by default and can only be enabled in firmware. If not enabled, the only way to reenable them is to erase the entire device, clear flash protection, and reprogram the device with new firmware that enables DOC. Disabling DOC features, robust flash protection, and hiding custom analog and digital functionality inside the PSoC device provide a level of security not possible with multichip application solutions. Additionally, all device interfaces can be permanently disabled (Device Security) for applications concerned about phishing attacks due to a maliciously reprogrammed device. Permanently disabling interfaces is not recommended in most applications because you cannot access the device later. Because all programming, debug, and test interfaces are disabled when Device Security is enabled, PSoCs with Device Security enabled may not be returned for failure analysis. 9. Programming, Debug Interfaces, Resources PSoC devices include extensive support for programming, testing, debugging, and tracing both hardware and firmware. Three interfaces are available: JTAG, SWD, and SWV. JTAG and SWD support all programming and debug features of the device. JTAG also supports standard JTAG scan chains for board level test and chaining multiple JTAG devices to a single JTAG connection. Complete Debug on Chip (DoC) functionality enables full device debugging in the final system using the standard production device. It does not require special interfaces, debugging pods, simulators, or emulators. Only the standard programming connections are required to fully support debug. Table 9-1. Debug Configurations Debug and Trace Configuration All debug and trace disabled JTAG SWD GPIO Pins Used 0 4 or 5 2 Document Number: 001-56955 Rev. *H Page 52 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet Compatible with PSoC Creator and MiniProg3 programmer and debugger Standard JTAG programming and debugging interfaces make CY8C32 compatible with other popular third-party tools (for example, ARM / Keil) Table 9-1. Debug Configurations Debug and Trace Configuration SWV SWD + SWV GPIO Pins Used 1 3 9.4 Trace Features 9.1 JTAG Interface The IEEE 1149.1 compliant JTAG interface exists on four or five pins (the nTRST pin is optional). The JTAG clock frequency can be up to 8 MHz, or 1/3 of the CPU clock frequency for 8 and 16-bit transfers, or 1/5 of the CPU clock frequency for 32-bit transfers, whichever is least. By default, the JTAG pins are enabled on new devices but the JTAG interface can be disabled, allowing these pins to be used as General Purpose I/O (GPIO) instead. The JTAG interface is used for programming the flash memory, debugging, I/O scan chains, and JTAG device chaining. The CY8C32 supports the following trace features when using JTAG or SWD: Trace the 8051 program counter (PC), accumulator register (ACC), and one SFR / 8051 core RAM register Trace depth up to 1000 instructions if all registers are traced, or 2000 instructions if only the PC is traced (on devices that include trace memory) Program address trigger to start tracing Trace windowing, that is, only trace when the PC is within a given range Two modes for handling trace buffer full: continuous (overwriting the oldest trace data) or break when trace buffer is full 9.2 Serial Wire Debug Interface The SWD interface is the preferred alternative to the JTAG interface. It requires only two pins instead of the four or five needed by JTAG. SWD provides all of the programming and debugging features of JTAG at the same speed. SWD does not provide access to scan chains or device chaining. The SWD clock frequency can be up to 1/3 of the CPU clock frequency. SWD uses two pins, either two of the JTAG pins (TMS and TCK) or the USBIO D+ and D– pins. The USBIO pins are useful for in system programming of USB solutions that would otherwise require a separate programming connector. One pin is used for the data clock and the other is used for data input and output. SWD can be enabled on only one of the pin pairs at a time. This only happens if, within 8 µs (key window) after reset, that pin pair (JTAG or USB) receives a predetermined sequence of 1s and 0s. SWD is used for debugging or for programming the flash memory. The SWD interface can be enabled from the JTAG interface or disabled, allowing its pins to be used as GPIO. Unlike JTAG, the SWD interface can always be reacquired on any device during the key window. It can then be used to reenable the JTAG interface, if desired. When using SWD or JTAG pins as standard GPIO, make sure that the GPIO functionality and PCB circuits do not interfere with SWD or JTAG use. 9.5 Single Wire Viewer Interface The SWV interface is closely associated with SWD but can also be used independently. SWV data is output on the JTAG interface’s TDO pin. If using SWV, you must configure the device for SWD, not JTAG. SWV is not supported with the JTAG interface. SWV is ideal for application debug where it is helpful for the firmware to output data similar to 'printf' debugging on PCs. The SWV is ideal for data monitoring, because it requires only a single pin and can output data in standard UART format or Manchester encoded format. For example, it can be used to tune a PID control loop in which the output and graphing of the three error terms greatly simplifies coefficient tuning. The following features are supported in SWV: 32 virtual channels, each 32 bits long Simple, efficient packing and serializing protocol Supports standard UART format (N81) 9.6 Programming Features The JTAG and SWD interfaces provide full programming support. The entire device can be erased, programmed, and verified. You can increase flash protection levels to protect firmware IP. Flash protection can only be reset after a full device erase. Individual flash blocks can be erased, programmed, and verified, if block security settings permit. 9.3 Debug Features Using the JTAG or SWD interface, the CY8C32 supports the following debug features: Halt and single-step the CPU View and change CPU and peripheral registers, and RAM addresses Eight program address breakpoints One memory access breakpoint—break on reading or writing any memory address and data value Break on a sequence of breakpoints (non recursive) Debugging at the full speed of the CPU Debug operations are possible while the device is reset, or in low-power modes 9.7 Device Security PSoC 3 offers an advanced security feature called device security, which permanently disables all test, programming, and debug ports, protecting your application from external access. The device security is activated by programming a 32-bit key (0×50536F43) to a Write Once Latch (WOL). The Write Once Latch is a type of nonvolatile latch (NVL). The cell itself is an NVL with additional logic wrapped around it. Each WOL device contains four bytes (32 bits) of data. The wrapper outputs a ‘1’ if a super-majority (28 of 32) of its bits match a pre-determined pattern (0×50536F43); it outputs a ‘0’ if this Document Number: 001-56955 Rev. *H Page 53 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet majority is not reached. When the output is 1, the Write Once NV latch locks the part out of Debug and Test modes; it also permanently gates off the ability to erase or alter the contents of the latch. Matching all bits is intentionally not required, so that single (or few) bit failures do not deassert the WOL output. The state of the NVL bits after wafer processing is truly random with no tendency toward 1 or 0. The WOL only locks the part after the correct 32-bit key (0×50536F43) is loaded into the NVL's volatile memory, programmed into the NVL's nonvolatile cells, and the part is reset. The output of the WOL is only sampled on reset and used to disable the access. This precaution prevents anyone from reading, erasing, or altering the contents of the internal memory. The user can write the key into the WOL to lock out external access only if no flash protection is set (see “Flash Security” on page 19). However, after setting the values in the WOL, a user still has access to the part until it is reset. Therefore, a user can write the key into the WOL, program the flash protection data, and then reset the part to lock it. If the device is protected with a WOL setting, Cypress cannot perform failure analysis and, therefore, cannot accept RMAs from customers. The WOL can be read out via Serial Wire Debug (SWD) port to electrically identify protected parts. The user can write the key in WOL to lock out external access only if no flash protection is set. For more information on how to take full advantage of the security features in PSoC see the PSoC 3 TRM. evolving. We at Cypress are committed to continuously improving the code protection features of our products. 10. Development Support The CY8C32 family has a rich set of documentation, development tools, and online resources to assist you during your development process. Visit psoc.cypress.com/getting-started to find out more. 10.1 Documentation A suite of documentation, supports the CY8C32 family to ensure that you can find answers to your questions quickly. This section contains a list of some of the key documents. Software User Guide: A step-by-step guide for using PSoC Creator. The software user guide shows you how the PSoC Creator build process works in detail, how to use source control with PSoC Creator, and much more. Component Datasheets: The flexibility of PSoC allows the creation of new peripherals (components) long after the device has gone into production. Component datasheets provide all of the information needed to select and use a particular component, including a functional description, API documentation, example code, and AC/DC specifications. Application Notes: PSoC application notes discuss a particular application of PSoC in depth; examples include brushless DC motor control and on-chip filtering. Application notes often include example projects in addition to the application note document. Technical Reference Manual: The Technical Reference Manual (TRM) contains all the technical detail you need to use a PSoC device, including a complete description of all PSoC registers. Disclaimer Note the following details of the flash code protection features on Cypress devices. Cypress products meet the specifications contained in their particular Cypress datasheets. Cypress believes that its family of products is one of the most secure families of its kind on the market today, regardless of how they are used. There may be methods, unknown to Cypress, that can breach the code protection features. Any of these methods, to our knowledge, would be dishonest and possibly illegal. Neither Cypress nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not mean that we are guaranteeing the product as “unbreakable.” Cypress is willing to work with the customer who is concerned about the integrity of their code. Code protection is constantly 10.2 Online In addition to print documentation, the Cypress PSoC forums connect you with fellow PSoC users and experts in PSoC from around the world, 24 hours a day, 7 days a week. 10.3 Tools With industry standard cores, programming, and debugging interfaces, the CY8C32 family is part of a development tool ecosystem. Visit us at www.cypress.com/go/psoccreator for the Document Number: 001-56955 Rev. *H Page 54 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet 11. Electrical Specifications Specifications are valid for –40 °C ≤ TA ≤ 85 °C and TJ ≤ 100 °C, except where noted. Specifications are valid for 1.71 V to 5.5 V, except where noted. The unique flexibility of the PSoC UDBs and analog blocks enable many functions to be implemented in PSoC Creator components, see the component datasheets for full AC/DC specifications of individual functions. See the “Example Peripherals” section on page 36 for further explanation of PSoC Creator components. 11.1 Absolute Maximum Ratings Table 11-1. Absolute Maximum Ratings DC Specifications Parameter TSTG Description Storage temperature Conditions Higher storage temperatures reduce NVL data retention time. Recommended storage temperature is +25 °C ±25 °C. Extended duration storage temperatures above 85 °C degrade reliability. Min –55 Typ 25 Max 100 Units °C VDDA VDDD VDDIO VCCA VCCD VSSA VGPIO[14] VSIO VIND VBAT Ivddio Vextref LU ESDHBM ESDCDM Analog supply voltage relative to VSSA Digital supply voltage relative to VSSD I/O supply voltage relative to VSSD Direct analog core voltage input Direct digital core voltage input Analog ground voltage DC input voltage on GPIO DC input voltage on SIO Voltage at boost converter input Boost converter supply Current per VDDIO supply pin ADC external reference inputs Latch up current[15] Human body model Charge device model Electrostatic discharge voltage Electrostatic discharge voltage Pins P0[3], P3[2] Includes signals sourced by VDDA and routed internal to the pin Output disabled Output enabled –0.5 –0.5 –0.5 –0.5 –0.5 VSSD –0.5 VSSD –0.5 VSSD –0.5 VSSD –0.5 0.5 VSSD –0.5 – – –140 750 500 – – – – – – – – – – – – – – – – 6 6 6 1.95 1.95 VSSD + 0.5 VDDIO + 0.5 7 6 5.5 5.5 100 2 140 – – V V V V V V V V V V V mA V mA V V Note Usage above the absolute maximum conditions listed in Table 11-1 may cause permanent damage to the device. Exposure to maximum conditions for extended periods of time may affect device reliability. When used below maximum conditions but above normal operating conditions the device may not operate to specification. Notes 14. The VDDIO supply voltage must be greater than the maximum analog voltage on the associated GPIO pins. Maximum analog voltage on GPIO pin ≤ VDDIO ≤ VDDA. 15. Meets or exceeds JEDEC Spec EIA/JESD78 IC Latch-up Test. Document Number: 001-56955 Rev. *H Page 55 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet 11.2 Device Level Specifications Specifications are valid for –40 °C ≤ TA ≤ 85 °C and TJ ≤ 100 °C, except where noted. Specifications are valid for 1.71 V to 5.5 V, except where noted. 11.2.1 Device Level Specifications Table 11-2. DC Specifications Parameter VDDA VDDA VDDD VDDD VDDIO[17] VCCA VCCD VBAT IDD[18] Description Conditions Min 1.8 1.71 1.8 1.71 1.71 Typ – 1.8 – 1.8 – 1.8 1.8 – – 0.8 – – 1.2 – – 2.0 – – 3.5 – – 6.6 – 1.2 1.8 3.2 5.8 12.1 Max 5.5 1.89 VDDA[16] 1.89 VDDA[16] 1.89 1.89 5.5 – – – – – – – – – – – – – – – – – – – – Units V V V V V V V V mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA Analog supply voltage and input to Analog core regulator enabled analog core regulator Analog supply voltage, analog regulator bypassed Digital supply voltage relative to VSSD Digital supply voltage, digital regulator bypassed I/IO supply voltage relative to VSSIO Direct analog core voltage input (Analog regulator bypass) Direct digital core voltage input (Digital regulator bypass) Voltage supplied to boost converter Analog core regulator disabled Digital core regulator disabled Analog core regulator disabled Digital core regulator enabled Digital core regulator disabled 1.71 1.71 0.5 Active Mode, VDD = 1.71 V–5.5 V Bus clock off. Execute from CPU instruction buffer. See “Flash Program Memory” on page 19. CPU at 3 MHz T = –40 °C T = 25 °C T = 85 °C CPU at 6 MHz T = –40 °C T = 25 °C T = 85 °C CPU at 12 MHz T = –40 °C T = 25 °C T = 85 °C CPU at 24 MHz T = –40 °C T = 25 °C T = 85 °C CPU at 48 MHz T = –40 °C T = 25 °C T = 85 °C VDD = 3.3 V, T = 25 °C, IMO and bus clock enabled, ILO = 1 kHz, CPU executing from flash and accessing SRAM, all other blocks off, all I/Os tied low. CPU at 3 MHz CPU at 6 MHz CPU at 12 MHz CPU at 24 MHz CPU at 48 MHz – – – – – – – – – – – – – – – – – – – – Notes 16. The power supplies can be brought up in any sequence however once stable VDDA must be greater than or equal to all other supplies. 17. The VDDIO supply voltage must be greater than the maximum analog voltage on the associated GPIO pins. Maximum analog voltage on GPIO pin ≤ VDDIO ≤ VDDA. 18. The current consumption of additional peripherals that are implemented only in programmed logic blocks can be found in their respective datasheets, available in PSoC Creator, the integrated design environment. To estimate total current, find CPU current at frequency of interest and add peripheral currents for your particular system from the device datasheet and component datasheets. Document Number: 001-56955 Rev. *H Page 56 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet Table 11-2. DC Specifications (continued) Parameter Sleep Description Mode[20] VDD = VDDIO = 4.5–5.5 V T = –40 °C T = 25 °C T = 85 °C VDD = VDDIO = 2.7–3.6 V T = –40 °C T = 25 °C T = 85 °C VDD = VDDIO = 1.71–1.95 V T = –40 °C T = 25 °C T = 85 °C VDD = VDDIO = 2.7–3.6V T = 25 °C – – – – – – – – – – – – – – 1 – – – – – – – – – – – – – – – µA µA µA µA µA µA µA µA µA µA CPU = OFF RTC = ON (= ECO32K ON, in low-power mode) Sleep timer = ON (= ILO ON at 1 kHz)[21] WDT = OFF I2C Wake = OFF Comparator = OFF POR = ON Boost = OFF SIO pins in single ended input, unregulated output mode Comparator = ON CPU = OFF RTC = OFF Sleep timer = OFF WDT = OFF I2C Wake = OFF POR = ON Boost = OFF SIO pins in single ended input, unregulated output mode I2C Wake = ON CPU = OFF RTC = OFF Sleep timer = OFF WDT = OFF Comparator = OFF POR = ON Boost = OFF SIO pins in single ended input, unregulated output mode Conditions Min Typ Max Units VDD = VDDIO = 2.7–3.6V T= 25 °C – – – µA Hibernate Mode[20] VDD = VDDIO = 4.5–5.5 V Hibernate mode current All regulators and oscillators off. SRAM retention GPIO interrupts are active Boost = OFF SIO pins in single ended input, unregulated output mode T = –40 °C T = 25 °C T = 85 °C VDD = VDDIO = 2.7–3.6 V T = –40 °C T = 25 °C T = 85 °C VDD = VDDIO = 1.71–1.95 V T = –40 °C T = 25 °C T = 85 °C – – – – – – – – – – – – – 200 – – – – – – – – – – – – – nA nA nA nA nA nA nA nA nA Notes 19. The current consumption of additional peripherals that are implemented only in programmed logic blocks can be found in their respective datasheets, available in PSoC Creator, the integrated design environment. To compute total current, find CPU current at frequency of interest and add peripheral currents for your particular system from the device datasheet and component datasheets. 20. If VCCD and VCCA are externally regulated, the voltage difference between VCCD and VCCA must be less than 50 mV. 21. Sleep timer generates periodic interrupts to wake up the CPU. This specification applies only to those times that the CPU is off. Document Number: 001-56955 Rev. *H Page 57 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet Table 11-3. AC Specifications[22] Parameter FCPU FBUSCLK Svdd TIO_INIT TSTARTUP TSLEEP Description CPU frequency Bus frequency VDD ramp rate Time from VDDD/VDDA/VCCD/VCCA ≥ IPOR to I/O ports set to their reset states Conditions 1.71 V ≤ VDDD ≤ 5.5 V 1.71 V ≤ VDDD ≤ 5.5 V Min DC DC – – Typ – – – – Max 50 50 1 10 Units MHz MHz V/ns µs Time from VDDD/VDDA/VCCD/VCCA VCCA/VCCD = regulated from ≥ PRES to CPU executing code at VDDA/VDDD, no PLL used, IMO reset vector boot mode (12 MHz typ.) Wakeup from sleep mode – Application of non-LVD interrupt to beginning of execution of next CPU instruction Wakeup from hibernate mode – Application of external interrupt to beginning of execution of next CPU instruction – – 66 µs – – 15 µs THIBERNATE – – 100 µs Figure 11-1. FCPU vs. VDD 5.5 V Vdd Voltage 3.3 V Valid Operating Region 1.71 V Valid Operating Region with SMP 0.5 V 0V DC 1 MHz 10 MHz 50 MHz CPU Frequency Note 22. Based on device characterization (Not production tested). Document Number: 001-56955 Rev. *H Page 58 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet 11.3 Power Regulators Specifications are valid for –40 °C ≤ TA ≤ 85 °C and TJ ≤ 100 °C, except where noted. Specifications are valid for 1.71 V to 5.5 V, except where noted. 11.3.1 Digital Core Regulator Table 11-4. Digital Core Regulator DC Specifications Parameter VDDD VCCD Description Input voltage Output voltage Regulator output capacitor Conditions Min 1.8 – Typ – 1.80 1 Max 5.5 – – Units V V µF ±10%, X5R ceramic or better. The two VCCD pins must be shorted together, with as short a trace as possible, see Power System on page 25 – 11.3.2 Analog Core Regulator Table 11-5. Analog Core Regulator DC Specifications Parameter VDDA VCCA Description Input voltage Output voltage Regulator output capacitor Conditions Min 1.8 – Typ – 1.80 1 Max 5.5 – – Units V V µF ±10%, X5R ceramic or better – 11.3.3 Inductive Boost Regulator. Table 11-6. Inductive Boost Regulator DC Specifications Unless otherwise specified, operating conditions are: VBAT = 2.4 V, VOUT = 2.7 V, IOUT = 40 mA, FSW = 400 kHz, LBOOST = 22 µH, CBOOST = 22 µF || 0.1 µF Parameter VBAT IOUT Description Input voltage Includes startup Load current[23, 24] Conditions T=-35 °C to +65 °C Over entire temperature range VBAT = 1.6 – 5.5 V, VOUT = 3.6 – 5.0 V, external diode VBAT = 1.6 – 3.6 V, VOUT = 1.6 – 3.6 V, internal diode VBAT = 0.8 – 1.6 V, VOUT = 1.6 – 3.6 V, internal diode VBAT = 0.8 – 1.6 V, VOUT = 3.6 – 5.0 V, external diode VBAT = 0.5 – 0.8 V, VOUT = 1.6 – 3.6 V, internal diode Min 0.5 0.68 – – – – – – Typ – – – – – – – – 200 12 Max 5.5 5.5 50 75 30 20 15 700 – – Units V V mA mA mA mA mA mA µA µA ILPK IQ Inductor peak current Quiescent current Boost active mode Boost standby mode, 32 khz external crystal oscillator, IOUT < 1 μA – – Notes 23. For output voltages above 3.6 V, an external diode is required. 24. Maximum output current applies for output voltages ≤ 4x input voltage. Document Number: 001-56955 Rev. *H Page 59 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet Table 11-6. Inductive Boost Regulator DC Specifications (continued) Unless otherwise specified, operating conditions are: VBAT = 2.4 V, VOUT = 2.7 V, IOUT = 40 mA, FSW = 400 kHz, LBOOST = 22 µH, CBOOST = 22 µF || 0.1 µF Parameter VOUT Description Boost voltage range[25, 26] 1.8 V 1.9 V 2.0 V 2.4 V 2.7 V 3.0 V 3.3 V 3.6 V 5.0 V Conditions Min Typ Max Units 1.71 1.81 1.90 2.28 2.57 2.85 3.14 3.42 External diode required 4.75 – – LBOOST = 10 µH LBOOST = 22 µH 70 82 1.80 1.90 2.00 2.40 2.70 3.00 3.30 3.60 5.00 – – 85 90 1.89 2.00 2.10 2.52 2.84 3.15 3.47 3.78 5.25 3.8 4.1 – – V V V V V V V V V % % % % RegLOAD RegLINE Load regulation Line regulation Efficiency ηOUT Table 11-7. Inductive Boost Regulator AC Specifications Parameter VRIPPLE FSW Description Ripple voltage (peak-to-peak) Switching frequency Conditions VOUT = 1.8 V, FSW = 400 kHz, IOUT = 10 mA Min – – Typ – 0.1, 0.4, or 2 Max 100 – Units mV MHz Table 11-8. Recommended External Components for Boost Circuit Parameter LBOOST CBOOST IF VR Filter Description Boost inductor capacitor[25] External Schottky diode average forward current Conditions Min 4.7 10 Typ 10 22 – – Max 47 47 – – Units µH µF A V External Schottky diode is required for VOUT > 3.6 V 1 20 Notes 25. Based on device characterization (Not production tested). 26. At boost frequency of 2 MHz, Vboost is limited to 2 x Vbat. At 400 kHz, Vboost is limited to 4 x Vbat. Document Number: 001-56955 Rev. *H Page 60 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet 11.4 Inputs and Outputs Specifications are valid for –40 °C ≤ TA ≤ 85 °C and TJ ≤ 100 °C, except where noted. Specifications are valid for 1.71 V to 5.5 V, except where noted. 11.4.1 GPIO Table 11-1. GPIO DC Specifications Parameter Description VIH Input voltage high threshold VIL Input voltage low threshold VIH Input voltage high threshold VIH VIL VIL VOH VOL Rpullup Rpulldown IIL CIN VH Idiode Rglobal Rmux Input voltage high threshold Input voltage low threshold Input voltage low threshold Output voltage high Output voltage low Conditions CMOS Input, PRT[×]CTL = 0 CMOS Input, PRT[×]CTL = 0 LVTTL Input, PRT[×]CTL = 1, VDDIO < 2.7 V LVTTL Input, PRT[×]CTL = 1, VDDIO ≥ 2.7V LVTTL Input, PRT[×]CTL = 1, VDDIO < 2.7 V LVTTL Input, PRT[×]CTL = 1, VDDIO ≥ 2.7V IOH = 4 mA at 3.3 VDDIO IOH = 1 mA at 1.8 VDDIO IOL = 8 mA at 3.3 VDDIO IOL = 4 mA at 1.8 VDDIO Min 0.7 × VDDIO – 0.7 × VDDIO 2.0 – – VDDIO – 0.6 VDDIO – 0.5 – – 3.5 3.5 – – – – – – Typ – – – – – – – – – – 5.6 5.6 – – 40 – 320 220 Max – 0.3 × VDDIO – – 0.3 × VDDIO 0.8 – – 0.6 0.6 8.5 8.5 2 7 – 100 – – Units V V V V V V V V V V kΩ kΩ nA pF mV µA Ω Ω Pull-up resistor Pull-down resistor Input leakage current (absolute value)[27] 25 °C, VDDIO = 3.0 V Input capacitance[27] Input voltage hysteresis (Schmitt-Trigger)[27] Current through protection diode to VDDIO and VSSIO Resistance pin to analog global bus 25 °C, VDDIO = 3.0 V Resistance pin to analog mux bus 25 °C, VDDIO = 3.0 V Table 11-2. GPIO AC Specifications Parameter TriseF TfallF TriseS TfallS Description Rise time in Fast Strong Mode[27] Fall time in Fast Strong Mode[27] Rise time in Slow Strong Mode[27] Fall time in Slow Strong Mode[27] GPIO output operating frequency 3.3 V < VDDIO < 5.5 V, fast strong drive mode 1.71 V < VDDIO < 3.3 V, fast strong drive mode 3.3 V < VDDIO < 5.5 V, slow strong drive mode 1.71 V < VDDIO < 3.3 V, slow strong drive mode GPIO input operating frequency 1.71 V < VDDIO < 5.5 V Conditions 3.3 V VDDIO Cload = 25 pF 3.3 V VDDIO Cload = 25 pF 3.3 V VDDIO Cload = 25 pF 3.3 V VDDIO Cload = 25 pF 90/10% VDDIO into 25 pF 90/10% VDDIO into 25 pF 90/10% VDDIO into 25 pF 90/10% VDDIO into 25 pF Min – – – – – – – – Typ – – – – – – – – Max 12 12 60 60 33 20 7 3.5 Units ns ns ns ns MHz MHz MHz MHz Fgpioout Fgpioin 90/10% VDDIO – – 50 MHz Note 27. Based on device characterization (Not production tested). Document Number: 001-56955 Rev. *H Page 61 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet 11.4.2 SIO Table 11-3. SIO DC Specifications Parameter Vinmax Vinref Description Maximum input voltage Input voltage reference (Differential input mode) Conditions All allowed values of Vddio and Vddd, see Section 11.2.1 Min – 0.5 Typ – – Max 5.5 0.52 × VDDIO Units V V Output voltage reference (Regulated output mode) Voutref Input voltage high threshold VIH GPIO mode Differential input mode[28] Input voltage low threshold VIL GPIO mode Differential input mode[28] Output voltage high VOH Unregulated mode Regulated mode[28] Regulated VOL Rpullup Rpulldown IIL Pull-up resistor Pull-down resistor Input leakage current (absolute value)[29] VIH < Vddsio VIH > Vddsio CIN VH Idiode Input Capacitance[29] Input voltage hysteresis (Schmitt-Trigger)[29] Current through protection diode to VSSIO Single ended mode (GPIO mode) Differential mode 25 °C, Vddsio = 3.0 V, VIH = 3.0 V 25 °C, Vddsio = 0 V, VIH = 3.0 V – – – – – – – – – 40 35 – 14 10 7 – – 100 nA µA pF mV mV µA mode[28] Output voltage low VDDIO = 3.30 V, IOL = 25 mA VDDIO = 1.80 V, IOL = 4 mA – – 3.5 3.5 – – 5.6 5.6 0.8 0.4 8.5 8.5 V V kΩ kΩ IOH = 4 mA, VDDIO = 3.3 V IOH = 1 mA IOH = 0.1 mA VDDIO – 0.4 SIO_ref – 0.65 SIO_ref – 0.3 – – – – SIO_ref + 0.2 SIO_ref + 0.2 V V V CMOS input Hysteresis disabled – – – – 0.3 × VDDIO SIO_ref – 0.2 V V CMOS input Hysteresis disabled 0.7 × VDDIO SIO_ref + 0.2 – – – – V V VDDIO > 3.7 VDDIO < 3.7 1 1 – – VDDIO – 1 VDDIO – 0.5 V V Table 11-4. SIO AC Specifications Parameter TriseF TfallF TriseS TfallS Description Rise time in Fast Strong Mode (90/10%)[29] Fall time in Fast Strong Mode (90/10%)[29] Rise time in Slow Strong Mode (90/10%)[29] Fall time in Slow Strong Mode (90/10%)[29] Conditions Cload = 25 pF, VDDIO = 3.3 V Cload = 25 pF, VDDIO = 3.3 V Cload = 25 pF, VDDIO = 3.0 V Cload = 25 pF, VDDIO = 3.0 V Min – – – – Typ – – – – Max 12 12 75 60 Units ns ns ns ns Notes 28. See Figure 6-9 on page 31 and Figure 6-12 on page 34 for more information on SIO reference 29. Based on device characterization (Not production tested). Document Number: 001-56955 Rev. *H Page 62 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet Table 11-4. SIO AC Specifications (continued) Parameter Description SIO output operating frequency 3.3 V < VDDIO < 5.5 V, Unregulated output (GPIO) mode, fast strong drive mode 1.71 V < VDDIO < 3.3 V, Unregulated output (GPIO) mode, fast strong drive mode 3.3 V < VDDIO < 5.5 V, Unregulated output (GPIO) mode, slow strong drive mode Fsioout 1.71 V < VDDIO < 3.3 V, Unregulated output (GPIO) mode, slow strong drive mode 90/10% VDDIO into 25 pF 90/10% VDDIO into 25 pF 90/10% VDDIO into 25 pF 90/10% VDDIO into 25 pF – – 33 MHz Conditions Min Typ Max Units – – 16 MHz – – 5 MHz – – 4 MHz 3.3 V < VDDIO < 5.5 V, Regulated Output continuously switching output mode, fast strong drive into 25 pF mode 1.71 V < VDDIO < 3.3 V, Regulated Output continuously switching output mode, fast strong drive into 25 pF mode 1.71 V < VDDIO < 5.5 V, Regulated Output continuously switching into 25 pF output mode, slow strong drive mode Fsioin 11.4.3 USBIO SIO input operating frequency 1.71 V < VDDIO < 5.5 V 90/10% VDDIO – – 20 MHz – – 10 MHz – – 2.5 MHz – – 50 MHz For operation in GPIO mode, the standard range for VDDD applies, see Device Level Specifications on page 56. Table 11-5. USBIO DC Specifications Parameter Rusbi Rusba Vohusb Volusb Vohgpio Volgpio Vdi Vcm Vse Rps2 Rext Zo CIN IIL Description USB D+ pull-up resistance USB D+ pull-up resistance Static output high Static output low Output voltage high, GPIO mode Output voltage low, GPIO mode Differential input sensitivity Differential input common mode range Single ended receiver threshold PS/2 pull-up resistance External USB series resistor USB driver output impedance Input leakage current (absolute value) Conditions With idle bus While receiving traffic 15 kΩ ±5% to Vss, internal pull-up enabled 15 kΩ ±5% to Vss, internal pull-up enabled IOH = 4 mA, VDDD ≥ 3 V IOL = 4 mA, VDDD ≥ 3 V |(D+)–(D–)| – – In PS/2 mode, with PS/2 pull-up enabled In series with each USB pin Including Rext 25 °C, VDDD = 3.0 V Min 0.900 1.425 2.8 – 2.4 – – 0.8 0.8 3 21.78 (–1%) 28 – – Typ – – – – – – – – – – 22 – – – Max 1.575 3.090 3.6 0.3 – 0.3 0.2 2.5 2 7 22.22 (+1%) 44 20 2 Units kΩ kΩ V V V V V V V kΩ Ω Ω pF nA USB transceiver input capacitance – Document Number: 001-56955 Rev. *H Page 63 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet Table 11-6. USBIO AC Specifications Parameter Description Tdrate Full-speed data rate average bit rate Tjr1 Tjr2 Tdj1 Tdj2 Tfdeop Tfeopt Tfeopr Tfst Fgpio_out Tr_gpio Tf_gpio Conditions Min 12 – 0.25% –8 –5 –3.5 –4 –2 160 82 – – – – – – – Typ 12 – – – – – – – – – – – – – – Receiver data jitter tolerance to next transition Receiver data jitter tolerance to pair transition Driver differential jitter to next transition Driver differential jitter to pair transition Source jitter for differential transition to SE0 transition Source SE0 interval of EOP Receiver SE0 interval of EOP Width of SE0 interval during differential transition GPIO mode output operating 3 V ≤ VDDD ≤ 5.5 V frequency VDDD = 1.71 V VDDD > 3 V, 25 pF load Rise time, GPIO mode, 10%/90% VDDD VDDD = 1.71 V, 25 pF load Fall time, GPIO mode, 90%/10% VDDD VDDD > 3 V, 25 pF load VDDD = 1.71 V, 25 pF load Max 12 + 0.25% 8 5 3.5 4 5 175 – 14 20 6 12 40 12 40 Units MHz ns ns ns ns ns ns ns ns MHz MHz ns ns ns ns Table 11-7. USB Driver AC Specifications Parameter Description Tr Transition rise time Tf Transition fall time TR Rise/fall time matching Vcrs 11.4.4 XRES Output signal crossover voltage Conditions VUSB_5, VUSB_3.3, see USB DC Specifications on page 77 Min – – 90% 1.3 Typ – – – – Max 20 20 111% 2 Units ns ns V Table 11-8. XRES DC Specifications Parameter Description VIH Input voltage high threshold Input voltage low threshold VIL Rpullup CIN VH Idiode Pull-up resistor Input capacitance[30] Input voltage hysteresis (Schmitt-Trigger)[30] Current through protection diode to VDDIO and VSSIO Conditions Min 0.7 × VDDIO – 3.5 – – – Typ – – 5.6 3 100 – Max – 0.3 × VDDIO 8.5 – – 100 Units V V kΩ pF mV µA Table 11-9. XRES AC Specifications Parameter TRESET Description Reset pulse width Conditions Min 1 Typ – Max – Units µs Document Number: 001-56955 Rev. *H Page 64 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet 11.5 Analog Peripherals Specifications are valid for –40 °C ≤ TA ≤ 85 °C and TJ ≤ 100 °C, except where noted. Specifications are valid for 1.71 V to 5.5 V, except where noted. 11.5.1 Delta-sigma ADC Unless otherwise specified, operating conditions are: Operation in continuous sample mode fclk = 6.144 MHz Reference = 1.024 V internal reference bypassed on P3.2 or P0.3 Unless otherwise specified, all charts and graphs show typical values Table 11-10. 12-bit Delta-sigma ADC DC Specifications Parameter Resolution Number of channels, single ended Number of channels, differential Monotonic Ge Gd Vos TCVos Gain error Gain drift Input offset voltage Temperature coefficient, input offset voltage Input voltage range, single ended[31] Input voltage range, differential unbuffered[31] Input voltage range, differential, buffered[31] Integral non linearity[31] Differential non linearity[31] Integral non linearity[31] Differential non linearity[31] ADC input resistance capacitance[31] Differential pair is formed using a pair of GPIOs. Yes Buffered, buffer gain = 1, modulator gain = 1, 25 °C Buffered, buffer gain = 1, modulator gain = 1 Buffered Buffered Description Conditions Min 8 – – – – – – – VSSA VSSA VSSA Typ – – – – – – – – – – – – – – – – 148[32] 5 – Max 12 No. of GPIO No. of GPIO/2 – ±0.2 50 ±0.1 55 VDDA VDDA VDDA – 1 ±1 ±1 ±1 ±1 – – – 1.3 Units bits – – – % ppm/°C mV µV/°C V V V LSB LSB LSB LSB MΩ kΩ pF V INL12 DNL12 INL8 DNL8 Rin_Buff Rin_ADC12 ADC input resistance Cin_G1 ADC input ADC external reference input voltage, see Vextref also internal reference in Voltage Pins P0[3], P3[2] Reference on page 67 Current Consumption IDD_12 Current consumption, 12 bit[31] 192 ksps, unbuffered IBUFF Buffer current consumption[31] Range = ±1.024 V, unbuffered Range = ±1.024 V, unbuffered Range = ±1.024 V, unbuffered Range = ±1.024 V, unbuffered Input buffer used Input buffer bypassed, 12 bit, Range = ±1.024 V Gain = 1 – – – – 10 – – 0.9 – – – – 1.4 2.5 mA mA Notes 31. Based on device characterization (Not production tested). 32. By using switched capacitors at the ADC input an effective input resistance is created. Holding the gain and number of bits constant, the resistance is proportional to the inverse of the clock frequency. This value is calculated, not measured. For more information see the Technical Reference Manual. Document Number: 001-56955 Rev. *H Page 65 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet Table 11-11. Delta-sigma ADC AC Specifications Parameter Description Startup time THD Total harmonic distortion[33] Conditions Buffer gain = 1, 16 bit, Range = ±1.024 V Range = ±1.024 V, unbuffered Range = ±1.024 V, unbuffered Range = ±1.024 V, unbuffered Min – – Typ – – Max 4 0.0032 Units Samples % 12-Bit Resolution Mode SR12 BW12 SINAD12int Sample rate, continuous, high power[33] Input bandwidth at max sample rate[33] Signal to noise ratio, 12-bit, internal reference[33] Sample rate, continuous, high power[33] Input bandwidth at max sample rate[33] Signal to noise ratio, 8-bit, internal reference[33] 4 – 66 – 44 – 192 – – ksps kHz dB 8-Bit Resolution Mode SR8 BW8 SINAD8int Range = ±1.024 V, unbuffered Range = ±1.024 V, unbuffered Range = ±1.024 V, unbuffered 8 – 43 – 88 – 384 – – ksps kHz dB Table 11-12. Delta-sigma ADC Sample Rates, Range = ±1.024 V Resolution, Bits 8 9 10 11 12 Continuous Min 8000 6400 5566 4741 4000 Multi-Sample Min 1911 1543 1348 1154 978 Max 384000 307200 267130 227555 192000 Max 91701 74024 64673 55351 46900 Figure 11-9. Delta-sigma ADC IDD vs sps, Range = ±1.024 V 1.20 Figure 11-10. Delta-sigma ADC INL at Maximum Sample Rate 3.00 1.00 2.50 0.80 2.00 Current, mA INL, LSBs 0.60 1.50 0.40 1.00 0.20 0.50 0.00 1 10 100 1,000 10,000 100,000 1,000,000 0.00 6 8 10 12 14 16 18 20 22 Sample rate, samples per second (sps) Sample Rate, samples per second (sps) Resolution bits Resolution, bits Note 33. Based on device characterization (Not production tested). Document Number: 001-56955 Rev. *H Page 66 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet Figure 11-11. Delta-sigma ADC Noise Histogram, 1000 samples, 12-bit, 192 ksps, Int Ref, VIN = VREF/2, Range = ±1.024 V 100.00 90.00 80.00 70.00 60.00 50.00 40.00 30.00 20.00 10.00 0.00 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 2046 2047 2048 2049 2050 2051 2052 2053 2054 2055 2056 2057 2058 2059 2060 2061 2062 2063 2064 2065 2066 2067 2068 % 11.5.2 Voltage Reference Table 11-13. Voltage Reference Specifications See also ADC external reference specifications in Section 11.5.1. Parameter Description VREF Precision reference voltage 11.5.3 Analog Globals Table 11-14. Analog Globals Specifications Parameter Rppag Rppmuxbus Resistance pin-to-pin through analog mux Note 34. The resistance of the analog global and analog mux bus is high if VDDA ≤ 2.7 V, and the chip is in either sleep or hibernate mode. Use of analog global and analog mux bus under these conditions is not recommended. Document Number: 001-56955 Rev. *H Page 67 of 100 % ADC Counts ADC counts Conditions Initial trim Min 1.014 (–1%) Typ 1.024 Max 1.034 (+1%) Units V Description Resistance pin-to-pin through analog global[34] bus[34] Conditions VDDA = 3.0 V VDDA = 3.0 V Min – – Typ 939 721 Max 1461 1135 Units Ω Ω [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet 11.5.4 Comparator Table 11-15. Comparator DC Specifications Parameter VOS Input offset voltage in slow mode VOS VOS VHYST VICM Input offset voltage in fast mode[35] Input offset voltage in slow mode[35] Input offset voltage in ultra low-power mode Hysteresis Input common mode voltage Hysteresis enable mode High current / fast mode Low current / slow mode Ultra low power mode CMRR ICMP Common mode rejection ratio High current mode/fast Ultra low-power mode[36] Low current mode/slow mode[36] mode[36] Description Input offset voltage in fast mode Conditions Factory trim, Vdda > 2.7 V, Vin ≥ 0.5 V Factory trim, Vin ≥ 0.5 V Custom trim Custom trim Min – – – – – – VSSA VSSA VSSA – – – – Typ Max 10 9 Units mV mV mV mV mV mV V V dB µA µA µA – – ±12 10 – – – 50 – – 6 4 4 – 32 VDDA – 0.1 VDDA VDDA – 0.9 – 400 100 – Table 11-16. Comparator AC Specifications Parameter Tresp Description Response time, high current mode[36] Response time, low current mode[36] Conditions 50 mV overdrive, measured pin-to-pin 50 mV overdrive, measured pin-to-pin Min – – – Typ 75 155 55 Max 110 200 – Units ns ns µs Response time, ultra low-power mode[36] 50 mV overdrive, measured pin-to-pin 11.5.5 Current Digital-to-analog Converter(IDAC) See the IDAC component datasheet in PSoC Creator for full electrical specifications and APIs. Unless otherwise specified, all charts and graphs show typical values. Table 11-17. IDAC DC Specifications Parameter Resolution IOUT Output current at code = 255 Range = 2.048 mA, code = 255, VDDA ≥ 2.7 V, Rload = 600 Ω Range = 2.048 mA, High mode, code = 255, VDDA ≤ 2.7 V, Rload = 300 Ω Range = 255 µA, code = 255, Rload = 600 Ω Range = 31.875 µA, code = 255, Rload = 600 Ω Monotonicity Ezs Zero scale error Description Conditions Min – – – Typ – 2.048 2.048 Max 8 – – Units bits mA mA – – – – 255 31.875 – 0 – – Yes ±1 µA µA LSB Notes 35. The recommended procedure for using a custom trim value for the on-chip comparators can be found in the TRM. 36. Based on device characterization (Not production tested). Document Number: 001-56955 Rev. *H Page 68 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet Table 11-17. IDAC DC Specifications (continued) Parameter Eg Gain error Description Conditions Range = 2.048 mA, 25 °C Range = 255 µA, 25 ° C Range = 31.875 µA, 25 ° C Min – – – – – – – Typ – – – – – – ±0.9 Max ±2.5 ±2.5 ±3.5 0.04 0.04 0.05 ±1 Units % % % % / °C % / °C % / °C LSB TC_Eg Temperature coefficient of gain error Integral nonlinearity Range = 2.048 mA Range = 255 µA Range = 31.875 µA Sink mode, range = 255 µA, Codes 8 – 255, Rload = 2.4 kΩ, Cload = 15 pF Source mode, range = 255 µA, Codes 8 – 255, Rload = 2.4 kΩ, Cload = 15 pF INL – ±1.2 ±1.5 LSB DNL Differential nonlinearity Sink mode, range = 255 µA, Rload = 2.4 kΩ, Cload = 15 pF Source mode, range = 255 µA, Rload = 2.4 kΩ, Cload = 15 pF – – 1 ±0.3 ±0.3 – ±1 ±1 – LSB LSB V Vcompliance Dropout voltage, source or sink mode Operating current, code = 0 Voltage headroom at max current, Rload to Vdda or Rload to Vssa, Vdiff from Vdda Slow mode, source mode, range = 31.875 µA Slow mode, source mode, range = 255 µA, Slow mode, source mode, range = 2.04 mA Slow mode, sink mode, range = 31.875 µA Slow mode, sink mode, range = 255 µA Slow mode, sink mode, range = 2.04 mA Fast mode, source mode, range = 31.875 µA Fast mode, source mode, range = 255 µA Fast mode, source mode, range = 2.04 mA Fast mode, sink mode, range = 31.875 µA Fast mode, sink mode, range = 255 µA Fast mode, sink mode, range = 2.04 mA IDD – – – – – – – – – – – – – – – – – – – – – – – – 44 33 33 36 33 33 310 305 305 310 300 300 µA µA µA µA µA µA µA µA µA µA µA µA Document Number: 001-56955 Rev. *H Page 69 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet Figure 11-12. IDAC INL vs Input Code, Range = 255 µA, Source Mode Figure 11-13. IDAC INL vs Input Code, Range = 255 µA, Sink Mode Figure 11-14. IDAC DNL vs Input Code, Range = 255 µA, Source Mode Figure 11-15. IDAC DNL vs Input Code, Range = 255 µA, Sink Mode Figure 11-16. IDAC INL vs Temperature, Range = 255 µA, Fast Mode Figure 11-17. IDAC DNL vs Temperature, Range = 255 µA, Fast Mode Document Number: 001-56955 Rev. *H Page 70 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet Figure 11-18. IDAC Full Scale Error vs Temperature, Range = 255 µA, Source Mode Figure 11-19. IDAC Full Scale Error vs Temperature, Range = 255 µA, Sink Mode Figure 11-20. IDAC Operating Current vs Temperature, Range = 255 µA, Code = 0, Source Mode Figure 11-21. IDAC Operating Current vs Temperature, Range = 255 µA, Code = 0, Sink Mode Table 11-18. IDAC AC Specifications Parameter FDAC TSETTLE Description Update rate Settling time to 0.5 LSB Conditions Range = 31.875 µA or 255 µA, full scale transition, fast mode, 600 Ω 15-pF load Min – – Typ – – Max 8 125 Units Msps ns Document Number: 001-56955 Rev. *H Page 71 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet 11.5.6 Voltage Digital to Analog Converter (VDAC) See the VDAC component datasheet in PSoC Creator for full electrical specifications and APIs. Unless otherwise specified, all charts and graphs show typical values. Table 11-19. VDAC DC Specifications Parameter Resolution INL1 DNL1 Rout VOUT Integral nonlinearity Differential nonlinearity Output resistance Output voltage range, code = 255 Monotonicity VOS Eg TC_Eg IDD Zero scale error Gain error 1 V scale, 25 °C 4 V scale, 25 °C Temperature coefficient, gain error 1 V scale, 25 °C 4 V scale, 25 °C Operating current Slow mode Fast mode 1 V scale 1 V scale 1 V scale 4 V scale 1 V scale 4 V scale, Vdda = 5 V Description Conditions Min – – – – – – – – – – – – – – – Typ 8 ±2.1 ±0.3 4 16 1 4 – 0 – – – – – – Max – ±2.5 ±1 – – – – Yes ±0.9 ±2.5 ±2.5 0.03 0.03 100 500 Units bits LSB LSB kΩ kΩ V V – LSB % % %FSR / °C %FSR / °C µA µA Figure 11-22. VDAC INL vs Input Code, 1 V Mode Figure 11-23. VDAC DNL vs Input Code, 1 V Mode Figure 11-24. VDAC INL vs Temperature, 1 V Mode Figure 11-25. VDAC DNL vs Temperature, 1 V Mode Document Number: 001-56955 Rev. *H Page 72 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet Figure 11-26. VDAC Full Scale Error vs Temperature, 1 V Mode Figure 11-27. VDAC Full Scale Error vs Temperature, 4 V Mode Figure 11-28. VDAC Operating Current vs Temperature, 1V Mode, Slow Mode Figure 11-29. VDAC Operating Current vs Temperature, 1 V Mode, Fast Mode Table 11-20. VDAC AC Specifications Parameter FDAC TsettleP Description Update rate 1 V scale 4 V scale Conditions Min – – – – – – Typ – – 0.45 0.8 0.45 0.7 Max 1000 250 1 3.2 1 3 Units ksps ksps µs µs µs µs Settling time to 0.1%, step 25% to 1 V scale, Cload = 15 pF 75% 4 V scale, Cload = 15 pF Settling time to 0.1%, step 75% to 1 V scale, Cload = 15 pF 25% 4 V scale, Cload = 15 pF TsettleN Document Number: 001-56955 Rev. *H Page 73 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet 11.5.7 Temperature Sensor Table 11-21. Temperature Sensor Specifications Parameter Description Temp sensor accuracy 11.5.8 LCD Direct Drive Conditions Range: –40 °C to +85 °C Min – Typ ±5 Max – Units °C Table 11-22. LCD Direct Drive DC Specifications Parameter ICC Description LCD system operating current Conditions Device sleep mode with wakeup at 400-Hz rate to refresh LCDs, bus clock = 3 Mhz, Vddio = Vdda = 3 V, 4 commons, 16 segments, 1/4 duty cycle, 50 Hz frame rate, no glass connected Strong drive mode Min – Typ 38 Max – Units μA ICC_SEG VBIAS Current per segment driver – 2 – – – 260 – 9.1 × VDDA 500 – – – 5 – 5000 20 710 µA V mV pF mV µA LCD bias range (VBIAS refers to the VDDA ≥ 3 V and VDDA ≥ VBIAS main output voltage(V0) of LCD DAC) LCD bias step size LCD capacitance per segment/common driver Long term segment offset VDDA ≥ 3 V and VDDA ≥ VBIAS Drivers may be combined IOUT Output drive current per segment driver) Vddio = 5.5V, strong drive mode 355 Table 11-23. LCD Direct Drive AC Specifications Parameter Description fLCD LCD frame rate Conditions Min 10 Typ 50 Max 150 Units Hz Document Number: 001-56955 Rev. *H Page 74 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet 11.6 Digital Peripherals Specifications are valid for –40 °C ≤ TA ≤ 85 °C and TJ ≤ 100 °C, except where noted. Specifications are valid for 1.71 V to 5.5 V, except where noted. 11.6.1 Timer The following specifications apply to the Timer/Counter/PWM peripheral in timer mode. Timers can also be implemented in UDBs; for more information, see the Timer component datasheet in PSoC Creator. Table 11-24. Timer DC Specifications Parameter Description Block current consumption 3 MHz 12 MHz 50 MHz Conditions 16-bit timer, at listed input clock frequency Min – – – – Typ – 15 60 260 Max – – – – Units µA µA µA µA Table 11-25. Timer AC Specifications Parameter Description Operating frequency Capture pulse width (Internal) Capture pulse width (external) Timer resolution Enable pulse width Enable pulse width (external) Reset pulse width Reset pulse width (external) 11.6.2 Counter The following specifications apply to the Timer/Counter/PWM peripheral, in counter mode. Counters can also be implemented in UDBs; for more information, see the Counter component datasheet in PSoC Creator. Conditions Min DC 21 42 21 21 42 21 42 Typ – – – – – – – – Max 50 – – – – – – – Units MHz ns ns ns ns ns ns ns Table 11-26. Counter DC Specifications Parameter Description Block current consumption 3 MHz 12 MHz 50 MHz Conditions 16-bit counter, at listed input clock frequency Min – – – – Typ – 15 60 260 Max – – – – Units µA µA µA µA Table 11-27. Counter AC Specifications Parameter Description Operating frequency Capture pulse Resolution Pulse width Pulse width (external) Enable pulse width Enable pulse width (external) Reset pulse width Reset pulse width (external) Conditions Min DC 21 21 21 42 21 42 21 42 Typ – – – – – – – – – Max 50 – – – – – – – – Units MHz ns ns ns ns ns ns ns ns Document Number: 001-56955 Rev. *H Page 75 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet 11.6.3 Pulse Width Modulation The following specifications apply to the Timer/Counter/PWM peripheral, in PWM mode. PWM components can also be implemented in UDBs; for more information, see the PWM component datasheet in PSoC Creator.. Table 11-28. PWM DC Specifications Parameter Description Block current consumption 3 MHz 12 MHz 50 MHz Conditions 16-bit PWM, at listed input clock frequency Min – – – – Typ – 15 60 260 Max – – – – Units µA µA µA µA Table 11-29. Pulse Width Modulation (PWM) AC Specifications Parameter Pulse width Pulse width (external) Kill pulse width Kill pulse width (external) Enable pulse width Enable pulse width (external) Reset pulse width Reset pulse width (external) 11.6.4 I2C Description Operating frequency Conditions Min DC 21 42 21 42 21 42 21 42 Typ – – – – – – – – – Max 50 – – – – – – – – Units MHz ns ns ns ns ns ns ns ns Table 11-30. Fixed I2C DC Specifications Parameter Description Block current consumption Conditions Enabled, configured for 100 kbps Enabled, configured for 400 kbps Wake from sleep mode Min – – – Typ – – – Max 250 260 30 Units µA µA µA Table 11-31. Fixed I2C AC Specifications Parameter Bit rate Description Conditions Min – Typ – Max 1 Units Mbps Document Number: 001-56955 Rev. *H Page 76 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet 11.6.5 USB Table 11-32. USB DC Specifications Parameter VUSB_5 VUSB_3.3 VUSB_3 Description Device supply for USB operation Conditions USB configured, USB regulator enabled USB configured, USB regulator bypassed USB configured, USB regulator bypassed[37] Min 4.35 3.15 2.85 Typ – – – Max 5.25 3.6 3.6 Units V V V 11.6.6 Universal Digital Blocks (UDBs) PSoC Creator provides a library of pre-built and tested standard digital peripherals (UART, SPI, LIN, PRS, CRC, timer, counter, PWM, AND, OR, and so on) that are mapped to the UDB array. See the component datasheets in PSoC Creator for full AC/DC specifications, APIs, and example code. Table 11-33. UDB AC Specifications Parameter Datapath Performance FMAX_TIMER Maximum frequency of 16-bit timer in a UDB pair FMAX_ADDER Maximum frequency of 16-bit adder in a UDB pair FMAX_CRC Maximum frequency of 16-bit CRC/PRS in a UDB pair Maximum frequency of a two-pass PLD function in a UDB pair Propagation delay for clock in to data 25 °C, Vddd ≥ 2.7 V out, see Figure 11-30. Propagation delay for clock in to data Worst-case placement, routing, out, see Figure 11-30. and pin selection – – – – – – 50 50 50 MHz MHz MHz Description Conditions Min Typ Max Units PLD Performance FMAX_PLD – – 50 MHz Clock to Output Performance tCLK_OUT tCLK_OUT – – 20 – 25 55 ns ns Figure 11-30. Clock to Output Performance Note 37. Rise/fall time matching (TR) not guaranteed, see USB Driver AC Specifications on page 64. Document Number: 001-56955 Rev. *H Page 77 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet 11.7 Memory Specifications are valid for –40 °C ≤ TA ≤ 85 °C and TJ ≤ 100 °C, except where noted. Specifications are valid for 1.71 V to 5.5 V, except where noted. 11.7.1 Flash Table 11-34. Flash DC Specifications Parameter Description Erase and program voltage VDDD pin Conditions Min 1.71 Typ – Max 5.5 Units V Table 11-35. Flash AC Specifications Parameter TWRITE TERASE TBULK Description Row write time (erase + program) Row erase time Row program time Bulk erase time (16 KB to 64 KB) Sector erase time (8 KB to 16 KB) Total device program time (including JTAG, and so on) Flash endurance Conditions Min – – – – – – 100k Typ – – – – – – – Max 15 10 5 35 15 5 – Units ms ms ms ms ms seconds program/ erase cycles years Flash data retention time Retention period measured from last erase cycle 20 – – 11.7.2 EEPROM Table 11-36. EEPROM DC Specifications Parameter Description Erase and program voltage Conditions Min 1.71 Typ – Max 5.5 Units V Table 11-37. EEPROM AC Specifications Parameter TWRITE Description Single row erase/write cycle time EEPROM endurance Conditions Min – 1M Typ 2 – Max 15 – Units ms program/ erase cycles years EEPROM data retention time Retention period measured from last erase cycle (up to 100 K cycles) 20 – – 11.7.3 Nonvolatile Latches (NVL)) Table 11-38. NVL DC Specifications Parameter Description Erase and program voltage VDDD pin Conditions Min 1.71 Typ – Max 5.5 Units V Document Number: 001-56955 Rev. *H Page 78 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet Table 11-39. NVL AC Specifications Parameter Description NVL endurance Conditions Programmed at 25 °C Min 1K Typ – Max – Units program/ erase cycles program/ erase cycles years years Programmed at 0 °C to 70 °C 100 – – NVL data retention time Programmed at 25 °C Programmed at 0 °C to 70 °C 20 20 – – – – 11.7.4 SRAM Table 11-40. SRAM DC Specifications Parameter VSRAM Description SRAM retention voltage Conditions Min 1.2 Typ – Max – Units V Table 11-41. SRAM AC Specifications Parameter FSRAM Description SRAM operating frequency Conditions Min DC Typ – Max 50 Units MHz 11.7.5 External Memory Interface Figure 11-31. Asynchronous Read Cycle Timing Tcel EM_ CEn Taddrv Taddrh EM_ Addr Address Toel EM_ OEn EM_ WEn Tdoesu Tdoeh EM_ Data Data Document Number: 001-56955 Rev. *H Page 79 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet Table 11-42. Asynchronous Read Cycle Specifications Parameter T Tcel Taddrv Taddrh Toel Tdoesu Tdoeh EMIF clock Description period[38] EM_CEn low time EM_CEn low to EM_Addr valid Address hold time after EM_Wen high EM_OEn low time Data to EM_OEn high setup time Data hold time after EM_OEn high Conditions Vdda ≥ 3.3 V Min 30.3 2T – 5 – T 2T – 5 T + 15 3 Typ – – – – – – – Max – 2T+ 5 5 – 2T + 5 – – Units nS nS nS nS nS nS nS Figure 11-32. Asynchronous Write Cycle Timing Taddrv Taddrh EM_ Addr Tcel Address EM_ CEn Twel EM_ WEn EM_ OEn Tdweh Tdcev EM_ Data Data Table 11-43. Asynchronous Write Cycle Specifications Parameter T Tcel Taddrv Taddrh Twel Tdcev Tdweh EMIF clock Description period[38] EM_CEn low time EM_CEn low to EM_Addr valid Address hold time after EM_WEn high EM_WEn low time EM_CEn low to data valid Data hold time after EM_WEn high Conditions Vdda ≥ 3.3 V Min 30.3 T–5 – T T–5 – T Typ – – – – – – – Max – T+5 5 – T+5 7 – Units nS nS nS nS nS nS nS Note 38. Limited by GPIO output frequency, see Table 11-2 on page 61. Document Number: 001-56955 Rev. *H Page 80 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet Figure 11-33. Synchronous Read Cycle Timing Tcp/2 EM_ Clock Tceld Tcehd EM_ CEn Taddrv Taddriv EM_ Addr Toeld Toehd Address EM_ OEn Tds EM_ Data Tadscld Tadschd Data EM_ ADSCn Table 11-44. Synchronous Read Cycle Specifications Parameter T Tcp/2 Tceld Tcehd Taddrv Taddriv Toeld Toehd Tds Tadscld Tadschd EMIF clock Description period[39] EM_Clock pulse high EM_CEn low to EM_Clock high EM_Clock high to EM_CEn high EM_Addr valid to EM_Clock high EM_Clock high to EM_Addr invalid EM_OEn low to EM_Clock high EM_Clock high to EM_OEn high Data valid before EM_OEn high EM_ADSCn low to EM_Clock high EM_Clock high to EM_ADSCn high Conditions Vdda ≥ 3.3 V Min 30.3 T/2 5 T/2 – 5 5 T/2 – 5 5 T T + 15 5 T/2 – 5 Typ – – – – – – – – – – – Max – – – – – – – – – – – Units nS nS nS nS nS nS nS nS nS nS nS Note 39. Limited by GPIO output frequency, see Table 11-2 on page 61. Document Number: 001-56955 Rev. *H Page 81 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet Figure 11-34. Synchronous Write Cycle Timing Tcp/2 EM_ Clock Tceld Tcehd EM_ CEn Taddrv Taddriv EM_ Addr Tweld Address Twehd EM_ WEn Tds Tdh EM_ Data Tadscld Data Tadschd EM_ ADSCn Table 11-45. Synchronous Write Cycle Specifications Parameter T Tcp/2 Tceld Tcehd Taddrv Taddriv Tweld Twehd Tds Tdh Tadscld Tadschd EMIF clock Description Period[40] EM_Clock pulse high EM_CEn low to EM_Clock high EM_Clock high to EM_CEn high EM_Addr valid to EM_Clock high EM_Clock high to EM_Addr invalid EM_WEn low to EM_Clock high EM_Clock high to EM_WEn high Data valid before EM_Clock high Data invalid after EM_Clock high EM_ADSCn low to EM_Clock high EM_Clock high to EM_ADSCn high Conditions Vdda ≥ 3.3 V Min 30.3 T/2 5 T/2 – 5 5 T/2 – 5 5 T/2 – 5 5 T 5 T/2 – 5 Typ – – – – – – – – – – – – Max – – – – – – – – – – – – Units nS nS nS nS nS nS nS nS nS nS nS nS Note 40. Limited by GPIO output frequency, see Table 11-2 on page 61. Document Number: 001-56955 Rev. *H Page 82 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet 11.8 PSoC System Resources Specifications are valid for –40 °C ≤ TA ≤ 85 °C and TJ ≤ 100 °C, except where noted. Specifications are valid for 1.71 V to 5.5 V, except where noted. 11.8.1 POR with Brown Out For brown out detect in regulated mode, VDDD and VDDA must be ≥ 2.0 V. Brown out detect is not available in externally regulated mode. Table 11-46. Precise Power-on Reset (PRES) with Brown Out DC Specifications Parameter PRESR PRESF Description Precise POR (PPOR) Rising trip voltage Falling trip voltage Conditions Factory trim Min 1.64 1.62 Typ – – Max 1.68 1.66 Units V V Table 11-47. Power-on Reset (POR) with Brown Out AC Specifications Parameter Description Conditions Min – Typ – Max 0.5 Units µs PRES_TR Response time 11.8.2 Voltage Monitors Table 11-48. Voltage Monitors DC Specifications Parameter Description LVI Trip voltage LVI_A/D_SEL[3:0] = 0000b LVI_A/D_SEL[3:0] = 0001b LVI_A/D_SEL[3:0] = 0010b LVI_A/D_SEL[3:0] = 0011b LVI_A/D_SEL[3:0] = 0100b LVI_A/D_SEL[3:0] = 0101b LVI_A/D_SEL[3:0] = 0110b LVI_A/D_SEL[3:0] = 0111b LVI_A/D_SEL[3:0] = 1000b LVI_A/D_SEL[3:0] = 1001b LVI_A/D_SEL[3:0] = 1010b LVI_A/D_SEL[3:0] = 1011b LVI_A/D_SEL[3:0] = 1100b LVI_A/D_SEL[3:0] = 1101b LVI_A/D_SEL[3:0] = 1110b LVI_A/D_SEL[3:0] = 1111b HVI Trip voltage Table 11-49. Voltage Monitors AC Specifications Parameter Description Response time Conditions Min 1.68 1.89 2.14 2.38 2.62 2.87 3.11 3.35 3.59 3.84 4.08 4.32 4.56 4.83 5.05 5.30 5.57 Typ 1.73 1.95 2.20 2.45 2.71 2.95 3.21 3.46 3.70 3.95 4.20 4.45 4.70 4.98 5.21 5.47 5.75 Max 1.77 2.01 2.27 2.53 2.79 3.04 3.31 3.56 3.81 4.07 4.33 4.59 4.84 5.13 5.37 5.63 5.92 Units V V V V V V V V V V V V V V V V V Conditions Min – Typ – Max 1 Units µs Document Number: 001-56955 Rev. *H Page 83 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet 11.8.3 Interrupt Controller Table 11-50. Interrupt Controller AC Specifications Parameter Description Conditions Min – Typ – Max 25 Units Tcy CPU Delay from interrupt signal input to ISR Includes worse case completion of code execution from ISR code longest instruction DIV with 6 cycles 11.8.4 JTAG Interface Table 11-51. JTAG Interface AC Specifications[22] Parameter f_TCK T_TDI_setup T_TMS_setup T_TDI_hold T_TDO_valid T_TDO_hold Description TCK frequency TDI setup before TCK high TMS setup before TCK high TDI, TMS hold after TCK high TCK low to TDO valid TDO hold after TCK high TCK to device outputs valid Conditions 3.3 V ≤ VDDD ≤ 5 V 1.71 V ≤ VDDD < 3.3 V Min – – (T/10) – 5 T/4 Typ – – – – – – – – Max 14[41] 7[41] – – – – – 2T/5 Units MHz MHz ns T = 1/f_TCK T = 1/f_TCK T = 1/f_TCK T/4 2T/5 T/4 – 11.8.5 SWD Interface Table 11-52. SWD Interface AC Specifications[22] Parameter f_SWDCK Description SWDCLK frequency Conditions 3.3 V ≤ VDDD ≤ 5 V 1.71 V ≤ VDDD < 3.3 V 1.71 V ≤ VDDD < 3.3 V, SWD over USBIO pins Min – – – T/4 T/4 2T/5 T/4 Typ – – – – – – – Max 14[42] 7[42] 5.5[42] – – – – Units MHz MHz MHz T_SWDI_setup SWDIO input setup before SWDCK high T = 1/f_SWDCK T_SWDI_hold SWDIO input hold after SWDCK high T = 1/f_SWDCK T = 1/f_SWDCK T_SWDO_valid SWDCK low to SWDIO output valid T_SWDO_hold SWDIO output hold after SWDCK high T = 1/f_SWDCK 11.8.6 SWV Interface Table 11-53. SWV Interface AC Specifications[22] Parameter Description SWV mode SWV bit rate Conditions Min – Typ – Max 33 Units Mbit Notes 41. f_TCK must also be no more than 1/3 CPU clock frequency. 42. f_SWDCK must also be no more than 1/3 CPU clock frequency. Document Number: 001-56955 Rev. *H Page 84 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet 11.9 Clocking Specifications are valid for –40 °C ≤ TA ≤ 85 °C and TJ ≤ 100 °C, except where noted. Specifications are valid for 1.71 V to 5.5 V, except where noted. 11.9.1 32 kHz External Crystal Table 11-54. 32 kHz External Crystal DC Specifications[22] Parameter ICC CL DL Description Operating current External crystal capacitance Drive level Conditions Low-power mode Min – – – Typ 0.25 6 – Max 1.0 – 1 Units µA pF µW Table 11-55. 32 kHz External Crystal AC Specifications Parameter F TON Frequency Startup time High power mode Description Conditions Min – – Typ 32.768 1 Max – – Units kHz s 11.9.2 Internal Main Oscillator Table 11-56. IMO DC Specifications Parameter Description Supply current 24 MHz – USB mode 24 MHz – non USB mode 12 MHz 6 MHz 3 MHz With oscillator locking to USB bus – – – – – – – – – – 500 300 200 180 150 µA µA µA µA µA Conditions Min Typ Max Units Table 11-57. IMO AC Specifications Parameter Description IMO frequency stability (with factory trim) 24 MHz – Non USB mode FIMO 24 MHz – USB mode 12 MHz 6 MHz 3 MHz Startup time[22] Jitter (peak to peak)[22] Jp-p F = 24 MHz F = 3 MHz Jitter (long term)[36] Jperiod F = 24 MHz F = 3 MHz – – 0.9 12 – – ns ns – – 0.9 1.6 – – ns ns From enable (during normal system operation) or wakeup from low-power state With oscillator locking to USB bus –4 –0.25 –3 –2 –1 – – – – – – – 4 0.25 3 2 1 12 % % % % % µs Conditions Min Typ Max Units Document Number: 001-56955 Rev. *H Page 85 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet 11.9.3 Internal Low-Speed Oscillator Table 11-58. ILO DC Specifications Parameter ICC Leakage current Description Operating current Conditions FOUT = 1 kHz FOUT = 33 kHz FOUT = 100 kHz Power down mode Min – – – – Typ 0.3 1.0 1.0 2.0 Max 1.7 2.6 2.6 15 Units µA µA µA nA Table 11-59. ILO AC Specifications Parameter Description Startup time, all frequencies ILO frequencies (trimmed) 100 kHz FILO 1 kHz ILO frequencies (untrimmed) 100 kHz 1 kHz 30 0.3 100 1 300 3.5 kHz kHz 45 0.5 100 1 200 2 kHz kHz Conditions Turbo mode Min – Typ – Max 2 Units ms 11.9.4 External Crystal Oscillator Table 11-60. ECO AC Specifications Parameter F Description Crystal frequency range Conditions Min 4 Typ – Max 33 Units MHz 11.9.5 External Clock Reference Table 11-61. External Clock Reference AC Specifications[22] Parameter Description External frequency range Input duty cycle range Input edge rate Measured at VDDIO/2 VIL to VIH Conditions Min 0 30 0.1 Typ – 50 – Max 33 70 – Units MHz % V/ns Document Number: 001-56955 Rev. *H Page 86 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet 11.9.6 Phase–Locked Loop Table 11-62. PLL DC Specifications Parameter IDD Description PLL operating current Conditions In = 3 MHz, Out = 24 MHz Min – Typ 200 Max – Units µA Table 11-63. PLL AC Specifications Parameter Fpllin Fpllout Description PLL input frequency[43] PLL intermediate frequency[44] Conditions Output of prescaler Min 1 1 24 – – Typ – – – – – Max 48 3 50 250 250 Units MHz MHz MHz µs ps PLL output frequency[43] Lock time at startup Jperiod-rms Jitter (rms)[36] Notes 43. This specification is guaranteed by testing the PLL across the specified range using the IMO as the source for the PLL. 44. PLL input divider, Q, must be set so that the input frequency is divided down to the intermediate frequency range. Value for Q ranges from 1 to 16. Document Number: 001-56955 Rev. *H Page 87 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet 12. Ordering Information In addition to the features listed in Table 12-1, every CY8C32 device includes: a precision on-chip voltage reference, precision oscillators, flash, ECC, DMA, a fixed function I2C, 4 KB trace RAM, JTAG/SWD programming and debug, external memory interface, and more. In addition to these features, the flexible UDBs and analog subsection support a wide range of peripherals. To assist you in selecting the ideal part, PSoC Creator makes a part recommendation after you choose the components required by your application. All CY8C32 derivatives incorporate device and flash security in user-selectable security levels; see the TRM for details. Table 12-1. CY8C32 Family with Single Cycle 8051 MCU Core LCD Segment Drive CPU Speed (MHz) Analog SC/CT Analog Blocks Digital 16-bit Timer/PWM I/O[46] EEPROM (KB) Comparator SRAM (KB) Part Number Package CAN 2.0b Total I/O FS USB USBIO JTAG ID[47] Flash (KB) CapSense UDBs[45] Opamps GPIO 62 38 25 25 62 38 25 25 62 38 25 25 62 38 25 25 ADC DAC DFB 16 KB Flash CY8C3244AXI-153 CY8C3244LTI-130 CY8C3244LTI-123 CY8C3244PVI-155 CY8C3244AXI-146 CY8C3244LTI-168 CY8C3244LTI-152 CY8C3244PVI-165 CY8C3244AXI-143 CY8C3244LTI-127 CY8C3244LTI-135 CY8C3244PVI-133 CY8C3244AXI-159 CY8C3244LTI-151 CY8C3244LTI-161 CY8C3244PVI-126 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 – – – – – – – – ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ 12-bit Del-Sig 12-bit Del-Sig 12-bit Del-Sig 12-bit Del-Sig 12-bit Del-Sig 12-bit Del-Sig 12-bit Del-Sig 12-bit Del-Sig 12-bit Del-Sig 12-bit Del-Sig 12-bit Del-Sig 12-bit Del-Sig 12-bit Del-Sig 12-bit Del-Sig 12-bit Del-Sig 12-bit Del-Sig 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 – – – – – – – – – – – – – – – – ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 – – – – ✔ ✔ ✔ ✔ – – – – ✔ ✔ ✔ ✔ – – – – – – – – – – – – – – – – 70 46 29 29 72 48 31 31 70 46 29 29 72 48 31 31 8 8 4 4 8 8 4 4 8 8 4 4 8 8 4 4 0 0 0 0 2 2 2 2 0 0 0 0 2 2 2 2 100-pin TQFP 68-pin QFN 48-pin QFN 48-pin SSOP 100-pin TQFP 68-pin QFN 48-pin QFN 48-pin SSOP 100-pin TQFP 68-pin QFN 48-pin QFN 48-pin SSOP 100-pin TQFP 68-pin QFN 48-pin QFN 48-pin SSOP 0×0E099069 0×0E082069 0×0E07B069 0×0E09B069 0×0E092069 0×0E0A8069 0×0E098069 0×0E0A5069 0×0E08F069 0×0E07F069 0×0E087069 0×0E085069 0×0E09F069 0×0E097069 0×0E0A1069 0×0E07E069 32 KB Flash CY8C3245AXI-158 CY8C3245LTI-163 CY8C3245LTI-139 CY8C3245PVI-134 CY8C3245AXI-166 CY8C3245LTI-124 CY8C3245LTI-144 CY8C3245PVI-167 CY8C3245AXI-148 CY8C3245LTI-142 50 50 50 50 50 50 50 50 50 50 32 32 32 32 32 32 32 32 32 32 4 4 4 4 4 4 4 4 4 4 1 1 1 1 1 1 1 1 1 1 – – – – – – – – ✔ ✔ 12-bit Del-Sig 12-bit Del-Sig 12-bit Del-Sig 12-bit Del-Sig 12-bit Del-Sig 12-bit Del-Sig 12-bit Del-Sig 12-bit Del-Sig 12-bit Del-Sig 12-bit Del-Sig 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 – – – – – – – – – – 20 20 20 20 20 20 20 20 20 20 4 4 4 4 4 4 4 4 4 4 – – – – ✔ ✔ ✔ ✔ – – – – – – – – – – – – 70 46 29 29 72 48 31 31 70 46 62 38 25 25 62 38 25 25 62 38 8 8 4 4 8 8 4 4 8 8 0 0 0 0 2 2 2 2 0 0 100-pin TQFP 68-pin QFN 48-pin QFN 48-pin SSOP 100-pin TQFP 68-pin QFN 48-pin QFN 48-pin SSOP 100-pin TQFP 68-pin QFN 0×0E09E069 0×0E0A3069 0×0E08B069 0×0E086069 0×0E0A6069 0×0E07C069 0×0E090069 0×0E0A7069 0×0E094069 0×0E08E069 Notes 45. UDBs support a wide variety of functionality including SPI, LIN, UART, timer, counter, PWM, PRS, and others. Individual functions may use a fraction of a UDB or multiple UDBs. Multiple functions can share a single UDB. See the Example Peripherals on page 36 for more information on how UDBs can be used. 46. The I/O Count includes all types of digital I/O: GPIO, SIO, and the two USB I/O. See the I/O System and Routing on page 29 for details on the functionality of each of these types of I/O. 47. The JTAG ID has three major fields. The most significant nibble (left digit) is the version, followed by a 2 byte part number and a 3 nibble manufacturer ID. Document Number: 001-56955 Rev. *H SIO Page 88 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet Table 12-1. CY8C32 Family with Single Cycle 8051 (continued) MCU Core LCD Segment Drive CPU Speed (MHz) Analog SC/CT Analog Blocks Digital 16-bit Timer/PWM I/O[49] EEPROM (KB) Comparator SRAM (KB) Part Number Package CAN 2.0b Total I/O FS USB USBIO JTAG ID[50] Flash (KB) CapSense UDBs[48] Opamps GPIO 25 25 62 38 25 25 ADC DAC DFB CY8C3245LTI-164 CY8C3245PVI-157 CY8C3245AXI-154 CY8C3245LTI-129 CY8C3245LTI-160 CY8C3245PVI-150 50 50 50 50 50 50 32 32 32 32 32 32 4 4 4 4 4 4 1 1 1 1 1 1 ✔ ✔ ✔ ✔ ✔ ✔ 12-bit Del-Sig 12-bit Del-Sig 12-bit Del-Sig 12-bit Del-Sig 12-bit Del-Sig 12-bit Del-Sig 1 1 1 1 1 1 2 2 2 2 2 2 0 0 0 0 0 0 0 0 0 0 0 0 – – – – – – ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ 20 20 20 20 20 20 4 4 4 4 4 4 – – ✔ ✔ ✔ ✔ – – – – – – 29 29 72 48 31 31 SIO 4 4 8 8 4 4 0 0 2 2 2 2 48-pin QFN 48-pin SSOP 100-pin TQFP 68-pin QFN 48-pin QFN 48-pin SSOP 0×0E0A4069 0×0E09D069 0×0E09A069 0×0E081069 0×0E0A0069 0×0E096069 64 KB Flash CY8C3246AXI-137 CY8C3246LTI-149 CY8C3246LTI-136 CY8C3246PVI-141 CY8C3246AXI-140 CY8C3246LTI-145 CY8C3246LTI-121 CY8C3246PVI-147 CY8C3246AXI-131 CY8C3246LTI-156 CY8C3246LTI-162 CY8C3246PVI-122 CY8C3246AXI-138 CY8C3246LTI-128 CY8C3246LTI-125 CY8C3246PVI-132 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 64 64 64 64 64 64 64 64 64 64 64 64 64 64 64 64 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 – – – – – – – – ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ 12-bit Del-Sig 12-bit Del-Sig 12-bit Del-Sig 12-bit Del-Sig 12-bit Del-Sig 12-bit Del-Sig 12-bit Del-Sig 12-bit Del-Sig 12-bit Del-Sig 12-bit Del-Sig 12-bit Del-Sig 12-bit Del-Sig 12-bit Del-Sig 12-bit Del-Sig 12-bit Del-Sig 12-bit Del-Sig 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 – – – – – – – – – – – – – – – – 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 – – – – ✔ ✔ ✔ ✔ – – – – ✔ ✔ ✔ ✔ – – – – – – – – – – – – – – – – 70 46 29 29 72 48 31 31 70 46 29 29 72 48 31 31 62 38 25 25 62 38 25 25 62 38 25 25 62 38 25 25 8 8 4 4 8 8 4 4 8 8 4 4 8 8 4 4 0 0 0 0 2 2 2 2 0 0 0 0 2 2 2 2 100-pin TQFP 68-pin QFN 48-pin QFN 48-pin SSOP 100-pin TQFP 68-pin QFN 48-pin QFN 48-pin SSOP 100-pin TQFP 68-pin QFN 48-pin QFN 48-pin SSOP 100-pin TQFP 68-pin QFN 48-pin QFN 48-pin SSOP 0×0E089069 0×0E095069 0×0E088069 0×0E08D069 0×0E08C069 0×0E091069 0×0E079069 0×0E093069 0×0E083069 0×0E09C069 0×0E0A2069 0×0E07A069 0×0E08A069 0×0E080069 0×0E07D069 0×0E084069 Notes 48. UDBs support a wide variety of functionality including SPI, LIN, UART, timer, counter, PWM, PRS, and others. Individual functions may use a fraction of a UDB or multiple UDBs. Multiple functions can share a single UDB. See the Example Peripherals on page 36 for more information on how UDBs can be used. 49. The I/O Count includes all types of digital I/O: GPIO, SIO, and the two USB I/O. See the I/O System and Routing on page 29 for details on the functionality of each of these types of I/O. 50. The JTAG ID has three major fields. The most significant nibble (left digit) is the version, followed by a 2 byte part number and a 3 nibble manufacturer ID. Document Number: 001-56955 Rev. *H Page 89 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet 12.1 Part Numbering Conventions PSoC 3 devices follow the part numbering convention described here. All fields are single character alphanumeric (0, 1, 2, …, 9, A, B, …, Z) unless stated otherwise. CY8Cabcdefg-xxx a: Architecture 3: PSoC 3 5: PSoC 5 b: Family group within architecture 2: CY8C32 family 4: CY8C34 family 6: CY8C36 family 8: CY8C38 family c: Speed grade 4: 50 MHz 6: 67 MHz d: Flash capacity 4: 16 KB 5: 32 KB 6: 64 KB ef: Package code Two character alphanumeric AX: TQFP LT: QFN PV: SSOP g: Temperature range C: commercial I: industrial A: automotive xxx: Peripheral set Three character numeric No meaning is associated with these three characters. Example Cypress Prefix 3: PSoC 3 2: CY8C32 Family 4: 50 MHz 6: 64 KB PV: SSOP I: Industrial Architecture Family Group within Architecture Speed Grade Flash Capacity Package Code Temperature Range Peripheral Set CY8C 3246PV I - xxx All devices in the PSoC 3 CY8C32 family comply to RoHS-6 specifications, demonstrating the commitment by Cypress to lead-free products. Lead (Pb) is an alloying element in solders that has resulted in environmental concerns due to potential toxicity. Cypress uses nickel-palladium-gold (NiPdAu) technology for the majority of leadframe-based packages. A high level review of the Cypress Pb-free position is available on our website. Specific package information is also available. Package Material Declaration Datasheets (PMDDs) identify all substances contained within Cypress packages. PMDDs also confirm the absence of many banned substances. The information in the PMDDs will help Cypress customers plan for recycling or other “end of life” requirements. Document Number: 001-56955 Rev. *H Page 90 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet 13. Packaging Table 13-1. Package Characteristics Parameter TA TJ Tja Tja Tja Tja Tjc Tjc Tjc Tjc Description Operating ambient temperature Operating junction temperature Package θJA (48-pin SSOP) Package θJA (48-pin QFN) Package θJA (68-pin QFN) Package θJA (100-pin TQFP) Package θJC (48-pin SSOP) Package θJC (48-pin QFN) Package θJC (68-pin QFN) Package θJC (100-pin TQFP) Pb-free assemblies (20s to 40s) – Sn-Ag-Cu solder paste reflow temperature Pb-free assemblies (20s to 40s) – Sn-Pb solder paste reflow temperature Conditions Min –40 –40 – – – – – – – – 235 Typ 25.00 – 45.16 15.94 11.72 30.52 27.84 7.05 6.32 9.04 – Max 85 100 – – – – – – – – 245 Units °C °C °C/Watt °C/Watt °C/Watt °C/Watt °C/Watt °C/Watt °C/Watt °C/Watt °C 205 – 220 °C Table 13-2. Package Moisture Sensitivity Level (MSL), IPC/JEDEC J-STD-2 Package 48-pin SSOP 48-pin QFN 68-pin QFN 100-pin TQFP MSL MSL 1 MSL 3 MSL 3 MSL 3 Document Number: 001-56955 Rev. *H Page 91 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet Figure 13-1. 48-pin (300 mil) SSOP Package Outline .020 24 1 0.395 0.420 0.292 0.299 DIMENSIONS IN INCHES MIN. MAX. 25 48 0.620 0.630 0.088 0.092 0.095 0.110 SEATING PLANE GAUGE PLANE .010 0.005 0.010 0.025 BSC 0.004 0.008 0.0135 0.008 0.016 0°-8° 0.024 0.040 51-85061-*D Figure 13-2. 48-pin QFN Package Outline TOP VIEW SIDE VIEW BOTTOM VIEW 7.00±0.10 1.00 MAX. 0.05 MAX. 0.20 REF. 5.6±0.10 0.23±0.05 37 48 1 PIN 1 ID 48 1 PIN 1 DOT LASER MARK 37 36 36 7.00±0.10 5.6±0.10 SOLDERABLE EXPOSED PAD 25 24 0.50±0.10 13 12 5.55 REF 12 13 24 25 0.40±0.10 NOTES: 1. HATCH AREA IS SOLDERABLE EXPOSED METAL. 2. REFERENCE JEDEC#: MO-220 3. PACKAGE WEIGHT: 0.13g 4. ALL DIMENSIONS ARE IN MM [MIN/MAX] 5. PACKAGE CODE PART # LT48D DESCRIPTION LEAD FREE 0.08 C 5.55 REF 001- 45616 *B Document Number: 001-56955 Rev. *H Page 92 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet Figure 13-3. 68-pin QFN 8×8 with 0.4 mm Pitch Package Outline (Sawn Version) TOP VIEW SIDE VIEW BOTTOM VIEW 0.900±0.100 8.000±0.100 0.200 REF 5.7±0.10 0.400 PITCH PIN1 ID R 0.20 6 8 1 PIN 1 DOT 5 2 5 1 5 1 5 2 6 8 1 8.000±0.100 5.7±0.10 0.20±0.05 1 7 1 8 3 4 3 5 0.05 MAX SEATING PLANE 0.400±0.1005 3 3 4 6.40 REF 1 8 1 7 NOTES: 1. HATCH AREA IS SOLDERABLE EXPOSED METAL. 0.08 C 001-09618 *C 2. REFERENCE JEDEC#: MO-220 3. PACKAGE WEIGHT: 0.17g 4. ALL DIMENSIONS ARE IN MILLIMETERS Figure 13-4. 100-pin TQFP (14 × 14 × 1.4 mm) Package Outline 16.00±0.25 SQ 14.00±0.05 SQ 100 76 NOTE: 1. JEDEC STD REF MS-026 2. BODY LENGTH DIMENSION DOES NOT INCLUDE MOLD PROTRUSION/END FLASH MOLD PROTRUSION/END FLASH SHALL NOT EXCEED 0.0098 in (0.25 mm) PER SIDE BODY LENGTH DIMENSIONS ARE MAX PLASTIC BODY SIZE INCLUDING MOLD MISMATCH 1 75 3. DIMENSIONS IN MILLIMETERS 0.22±0.05 0° MIN. STAND-OFF 0.05 MIN. 0.15 MAX. R 0.08 MIN. 0.20 MAX. 0.25 GAUGE PLANE 0.50 TYP. 25 51 R 0.08 MIN. 0.20 MAX. DETAIL 0°-7° 0 0 12.0000 0.60±0.15 A 26 50 NOTE: PKG. CAN HAVE SEATING PLANE 1.60 MAX. 12°±1° (8X) TOP LEFT CORNER CHAMFER OR 1.40±0.05 0.08 0.20 MAX. SEE DETAIL 4 CORNERS CHAMFER A 51-85048-*D Document Number: 001-56955 Rev. *H Page 93 of 100 6.40 REF LASER MARK SOLDERABLE EXPOSED PAD [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet 14. Acronyms Table 14-1. Acronyms Used in this Document Acronym abus ADC AG AHB analog local bus analog-to-digital converter analog global AMBA (advanced microcontroller bus architecture) high-performance bus, an ARM data transfer bus arithmetic logic unit analog multiplexer bus application programming interface application program status register advanced RISC machine, a CPU architecture automatic thump mode bandwidth Controller Area Network, a communications protocol common-mode rejection ratio central processing unit cyclic redundancy check, an error-checking protocol digital-to-analog converter, see also IDAC, VDAC digital filter block digital input/output, GPIO with only digital capabilities, no analog. See GPIO. direct memory access, see also TD differential nonlinearity, see also INL do not use port write data registers digital logic reset digital system interconnect data watchpoint and trace error correcting code external crystal oscillator electrically erasable programmable read-only memory electromagnetic interference external memory interface end of conversion end of frame execution program status register electrostatic discharge Table 14-1. Acronyms Used in this Document (continued) Acronym ETM FIR FPB FS GPIO HVI IC IDAC IDE I2C, IIR ILO IMO INL I/O IPOR IPSR IRQ ITM LCD LIN LR LUT LVD LVI LVTTL MAC MCU MISO NC NMI NRZ NVIC NVL opamp PAL PC PCB or IIC Description embedded trace macrocell finite impulse response, see also IIR flash patch and breakpoint full-speed general-purpose input/output, applies to a PSoC pin high-voltage interrupt, see also LVI, LVD integrated circuit current DAC, see also DAC, VDAC integrated development environment Inter-Integrated Circuit, a communications protocol infinite impulse response, see also FIR internal low-speed oscillator, see also IMO internal main oscillator, see also ILO integral nonlinearity, see also DNL input/output, see also GPIO, DIO, SIO, USBIO initial power-on reset interrupt program status register interrupt request instrumentation trace macrocell liquid crystal display Local Interconnect Network, a communications protocol. link register lookup table low-voltage detect, see also LVI low-voltage interrupt, see also HVI low-voltage transistor-transistor logic multiply-accumulate microcontroller unit master-in slave-out no connect nonmaskable interrupt non-return-to-zero nested vectored interrupt controller nonvolatile latch, see also WOL operational amplifier programmable array logic, see also PLD program counter printed circuit board Page 94 of 100 Description ALU AMUXBUS API APSR ARM® ATM BW CAN CMRR CPU CRC DAC DFB DIO DMA DNL DNU DR DRES DSI DWT ECC ECO EEPROM EMI EMIF EOC EOF EPSR ESD Document Number: 001-56955 Rev. *H [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet Table 14-1. Acronyms Used in this Document (continued) Acronym PGA PHUB PHY PICU PLA PLD PLL PMDD POR PRES PRS PS PSoC® PSRR PWM RAM RISC RMS RTC RTL RTR RX SAR SC/CT SCL SDA S/H SINAD SIO peripheral hub physical layer port interrupt control unit programmable logic array programmable logic device, see also PAL phase-locked loop package material declaration datasheet power-on reset precise power-on reset pseudo random sequence port read data register Programmable System-on-Chip™ power supply rejection ratio pulse-width modulator random-access memory reduced-instruction-set computing root-mean-square real-time clock register transfer language remote transmission request receive successive approximation register switched capacitor/continuous time I2C serial clock I2C serial data sample and hold signal to noise and distortion ratio special input/output, GPIO with advanced features. See GPIO. Table 14-1. Acronyms Used in this Document (continued) Acronym SOC SOF SPI SR SRAM SRES SWD SWV TD THD TIA TRM TTL TX UART UDB USB USBIO VDAC WDT WOL WRES XRES XTAL start of frame Serial Peripheral Interface, a communications protocol slew rate static random access memory software reset serial wire debug, a test protocol single-wire viewer transaction descriptor, see also DMA total harmonic distortion transimpedance amplifier technical reference manual transistor-transistor logic transmit Universal Asynchronous Transmitter Receiver, a communications protocol universal digital block Universal Serial Bus USB input/output, PSoC pins used to connect to a USB port voltage DAC, see also DAC, IDAC watchdog timer write once latch, see also NVL watchdog timer reset external reset I/O pin crystal Description programmable gain amplifier Description start of conversion 15. Reference Documents PSoC® 3, PSoC® 5 Architecture TRM PSoC® 3 Registers TRM Document Number: 001-56955 Rev. *H Page 95 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet 16. Document Conventions 16.1 Units of Measure Table 16-1. Units of Measure Symbol °C dB fF Hz KB kbps Khr kHz kΩ ksps LSB Mbps MHz MΩ Msps µA decibels femtofarads hertz 1024 bytes kilobits per second kilohours kilohertz kilohms kilosamples per second least significant bit megabits per second megahertz megaohms megasamples per second microamperes Table 16-1. Units of Measure (continued) Symbol µF µH µs µV µW mA ms mV nA ns nV Ω pF ppm ps s sps sqrtHz V microfarads microhenrys microseconds microvolts microwatts milliamperes milliseconds millivolts nanoamperes nanoseconds nanovolts ohms picofarads parts per million picoseconds seconds samples per second square root of hertz volts Unit of Measure Unit of Measure degrees Celsius Document Number: 001-56955 Rev. *H Page 96 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet 17. Revision History Description Title: PSoC® 3: CY8C32 Family Datasheet Programmable System-on-Chip (PSoC®) Document Number: 001-56955 Rev. ** *A ECN No. 2796903 2824546 Submission Date 11/04/09 12/09/09 Orig. of Change MKEA MKEA New datasheet Description of Change Updated I2C section to reflect 1 Mbps. Updated Table 11-6 and 11- 7 (Boost AC and DC specs); also added Shottky Diode specs. Changed current for sleep/hibernate mode to include SIO; Added footnote to analog global specs. Updated Figures 1-1, 6-2, 7-14, and 8-1. Updated Table 6-2 and Table 6-3 (Hibernate and Sleep rows) and Power Modes section. Updated GPIO and SIO AC specifications. Updated Gain error in IDAC and VDAC specifications. Updated description of VDDA spec in Table 11-1 and removed GPIO Clamp Current parameter. Updated number of UDBs on page 1. Moved FILO from ILO DC to AC table. Added PCB Layout and PCB Schematic diagrams. Updated Fgpioout spec (Table 11-9). Added duty cycle frequency in PLL AC spec table. Added note for Sleep and Hibernate modes and Active Mode specs in Table 11-2. Linked URL in Section 10.3 to PSoC Creator site. Updated Ja and Jc values in Table 13-1. Updated Single Sample Mode and Fast FIR Mode sections. Updated Input Resistance specification in Del-Sig ADC table. Added Tio_init parameter. Updated PGA and UGB AC Specs. Removed SPC ADC. Updated Boost Converter section. Added section 'SIO as Comparator'; updated Hysteresis spec (differential mode) in Table 11-10. Updated VBAT condition and deleted Vstart parameter in Table 11-6. Added 'Bytes' column for Tables 4-1 to 4-5. Changed maximum value of PPOR_TR to '1'. Updated VBIAS specification. Updated PCB Schematic. Updated Figure 8-1 and Figure 6-3. Updated Interrupt Vector table, Updated Sales links. Updated JTAG and SWD specifications. Removed Jp-p and Jperiod from ECO AC Spec table. Added note on sleep timer in Table 11-2. Updated ILO AC and DC specifications. Added Resolution parameter in VDAC and IDAC tables. Updated IOUT typical and maximum values. Changed Temperature Sensor range to –40 °C to +85 °C. Removed Latchup specification from Table 11-1. Updated DAC details *B 2873322 02/04/10 MKEA Document Number: 001-56955 Rev. *H Page 97 of 100 [+] Feedback PRELIMINARY PSoC® 3: CY8C32 Family Datasheet Description Title: PSoC® 3: CY8C32 Family Datasheet Programmable System-on-Chip (PSoC®) Document Number: 001-56955 *C 2903576 04/01/10 MKEA Updated Vb pin in PCB Schematic. Updated Tstartup parameter in AC Specifications table. Added Load regulation and Line regulation parameters to Inductive Boost Regulator DC Specifications table. Updated ICC parameter in LCD Direct Drive DC Specs table. In page 1, updated internal oscillator range under Prescision programmable clocking to start from 3 MHz. Updated IOUT parameter in LCD Direct Drive DC Specs table. Updated Table 6-2 and Table 6-3. Added bullets on CapSense in page 1; added CapSense column in Section 12 Rem oved some references to footnote [1]. Changed INC_Rn cycles from 3 to 2 (Table 4-1). Added footnote in PLL AC Specification table. Added PLL intermediate frequency row with footnote in PLL AC Specs table. Added UDBs subsection under 11.6 Digital Peripherals. Updated Figure 2-6 (PCB Layout). Updated Pin Descriptions section and modified Figures 6-6, 6-8, 6-9. Updated LVD in Tables 6-2 and 6-3; modified Low-power modes bullet in page 1. Added note to Figures 2-5 and 6-2; Updated Figure 6-2 to add capacitors for VDDA and VDDD pins. Updated boost converter section (6.2.2). Updated Tstartup values in Table 11-3. Removed IPOR rows from Table 11-53. Updated 6.3.1.1, Power Voltage Level Monitors. Updated section 5.2 and Table 11-2 to correct suggestion of execution from flash. Updated IMO max frequency in Figure 6-1, Table 11-63, and Table 11-64. Updated VREF specs in Table 11-19. Updated IDAC uncompensated gain error in Table 11-23. Updated Delay from Interrupt signal input to ISR code execution from ISR code in Table-71. Removed other line in table. Added sentence to last paragraph of section 6.1.1.3. Updated Tresp, high and low-power modes, in Table 11-22. Updated f_TCK values in Table 11-58 and f_SWDCK values in Table 11-59. Updated SNR condition in Table 11-18. Updated sleep wakeup time in Table 6-3 and Tsleep in Table 11-3. Added 1.71 V