ADSP-2189MBST-266

a FEATURES PERFORMANCE 13.3 ns Instruction Cycle Time @ 2.5 Volts (Internal), 75 MIPS Sustained Performance Single-Cycle Instruction Execution Single-Cycle Context Switch 3-Bus Architecture Allows Dual Operand Fetches in Every Instruction Cycle Multifunction Instructions Power-Down Mode Featuring Low CMOS Standby Power Dissipation with 200 CLKIN Cycle Recovery from Power-Down Condition Low Power Dissipation in Idle Mode INTEGRATION ADSP-2100 Family Code Compatible (Easy to Use Algebraic Syntax), with Instruction Set Extensions 192K Bytes of On-Chip RAM, Configured as 32K Words On-Chip Program Memory RAM and 48K Words OnChip Data Memory RAM Dual Purpose Program Memory for Both Instruction and Data Storage Independent ALU, Multiplier/Accumulator and Barrel Shifter Computational Units Two Independent Data Address Generators Powerful Program Sequencer Provides Zero Overhead Looping Conditional Instruction Execution Programmable 16-Bit Interval Timer with Prescaler 100-Lead LQFP SYSTEM INTERFACE Flexible I/O Structure Allows 2.5 V or 3.3 V Operation; All Inputs Tolerate Up to 3.6 V, Regardless of Mode 16-Bit Internal DMA Port for High Speed Access to OnChip Memory (Mode Selectable) 4 MByte Memory Interface for Storage of Data Tables and Program Overlays (Mode Selectable) 8-Bit DMA to Byte Memory for Transparent Program and Data Memory Transfers (Mode Selectable) I/O Memory Interface with 2048 Locations Supports Parallel Peripherals (Mode Selectable) Programmable Memory Strobe and Separate I/O Memory Space Permits “Glueless” System Design Programmable Wait-State Generation Two Double-Buffered Serial Ports with Companding Hardware and Automatic Data Buffering Automatic Booting of On-Chip Program Memory from Byte-Wide External Memory, e.g., EPROM, or Through Internal DMA Port ICE-Port is a trademark of Analog Devices, Inc. DATA ADDRESS GENERATORS DAG 1 DAG 2 PROGRAM SEQUENCER DSP Microcomputer ADSP-2189M FUNCTIONAL BLOCK DIAGRAM POWER-DOWN CONTROL MEMORY PROGRAM MEMORY 32K 24 BIT DATA MEMORY 48K 16 BIT FULL MEMORY MODE PROGRAMMABLE I/O AND FLAGS EXTERNAL ADDRESS BUS EXTERNAL DATA BUS BYTE DMA CONTROLLER PROGRAM MEMORY ADDRESS DATA MEMORY ADDRESS PROGRAM MEMORY DATA OR DATA MEMORY DATA EXTERNAL DATA BUS ARITHMETIC UNITS ALU MAC SHIFTER SERIAL PORTS SPORT 0 SPORT 1 TIMER INTERNAL DMA PORT HOST MODE ADSP-2100 BASE ARCHITECTURE Six External Interrupts 13 Programmable Flag Pins Provide Flexible System Signaling UART Emulation through Software SPORT Reconfiguration ICE-Port™ Emulator Interface Supports Debugging in Final Systems GENERAL DESCRIPTION The ADSP-2189M is a single-chip microcomputer optimized for digital signal processing (DSP) and other high speed numeric processing applications. The ADSP-2189M combines the ADSP-2100 family base architecture (three computational units, data address generators and a program sequencer) with two serial ports, a 16-bit internal DMA port, a byte DMA port, a programmable timer, Flag I/O, extensive interrupt capabilities, and on-chip program and data memory. The ADSP-2189M integrates 192K bytes of on-chip memory configured as 32K words (24-bit) of program RAM and 48K words (16-bit) of data RAM. Power-down circuitry is also provided to meet the low power needs of battery operated portable equipment. The ADSP-2189M is available in a 100-lead LQFP package. In addition, the ADSP-2189M supports new instructions, which include bit manipulations—bit set, bit clear, bit toggle, bit test— new ALU constants, new multiplication instruction (x squared), biased rounding, result free ALU operations, I/O memory transfers and global interrupt masking, for increased flexibility. REV. 0 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781/329-4700 World Wide Web Site: http://www.analog.com Fax: 781/326-8703 © Analog Devices, Inc., 1999 ADSP-2189M Fabricated in a high speed, low power, CMOS process, the ADSP-2189M operates with a 13.3 ns instruction cycle time. Every instruction can execute in a single processor cycle. The ADSP-2189M’s flexible architecture and comprehensive instruction set allow the processor to perform multiple operations in parallel. In one processor cycle, the ADSP-2189M can: • • • • • • • • • Generate the next program address Fetch the next instruction Perform one or two data moves Update one or two data address pointers Perform a computational operation Receive and transmit data through the two serial ports Receive and/or transmit data through the internal DMA port Receive and/or transmit data through the byte DMA port Decrement timer The EZ-ICE performs a full range of functions, including: • • • • • • • • In-target operation Up to 20 breakpoints Single-step or full-speed operation Registers and memory values can be examined and altered PC upload and download functions Instruction-level emulation of program booting and execution Complete assembly and disassembly of instructions C source-level debugging This takes place while the processor continues to: See “Designing An EZ-ICE-Compatible Target System” in the ADSP-2100 Family EZ-Tools Manual (ADSP-2181 sections) as well as the Designing an EZ-ICE compatible System section of this data sheet for the exact specifications of the EZ-ICE target board connector. Additional Information DEVELOPMENT SYSTEM The ADSP-2100 Family Development Software, a complete set of tools for software and hardware system development, supports the ADSP-2189M. The System Builder provides a high level method for defining the architecture of systems under development. The Assembler has an algebraic syntax that is easy to program and debug. The Linker combines object files into an executable file. The Simulator provides an interactive instruction-level simulation with a reconfigurable user interface to display different portions of the hardware environment. A PROM Splitter generates PROM programmer compatible files. The C Compiler, based on the Free Software Foundation’s GNU C Compiler, generates ADSP-2189M assembly source code. The source code debugger allows programs to be corrected in the C environment. The Runtime Library includes over 100 ANSI-standard mathematical and DSP-specific functions. The EZ-KIT Lite is a hardware/software kit offering a complete development environment for the entire ADSP-21xx family: an ADSP-218x-based evaluation board with PC monitor software plus Assembler, Linker, Simulator and PROM Splitter software. The ADSP-218x EZ-KIT Lite is a low cost, easy to use hardware platform on which you can quickly get started with your DSP software design. The EZ-KIT Lite includes the following features: • 33 MHz ADSP-218x • Full 16-bit Stereo Audio I/O with AD1847 SoundPort® Codec • RS-232 Interface to PC with Windows 3.1 Control Software • EZ-ICE Connector for Emulator Control • DSP Demo Programs The ADSP-218x EZ-ICE® Emulator aids in the hardware debugging of an ADSP-2189M system. The emulator consists of hardware, host computer resident software and the target board connector. The ADSP-2189M integrates on-chip emulation support with a 14-pin ICE-Port interface. This interface provides a simpler target board connection that requires fewer mechanical clearance considerations than other ADSP-2100 Family EZ-ICEs. The ADSP-2189M device need not be removed from the target system when using the EZ-ICE, nor are any adapters needed. Due to the small footprint of the EZ-ICE connector, emulation can be supported in final board designs. EZ-ICE and SoundPort are registered trademarks of Analog Devices, Inc. This data sheet provides a general overview of ADSP-2189M functionality. For additional information on the architecture and instruction set of the processor, refer to the ADSP-2100 Family User’s Manual, Third Edition. For more information about the development tools, refer to the ADSP-2100 Family Development Tools Data Sheet. ARCHITECTURE OVERVIEW The ADSP-2189M instruction set provides flexible data moves and multifunction (one or two data moves with a computation) instructions. Every instruction can be executed in a single processor cycle. The ADSP-2189M assembly language uses an algebraic syntax for ease of coding and readability. A comprehensive set of development tools supports program development. POWER-DOWN CONTROL MEMORY DATA ADDRESS GENERATORS DAG 1 DAG 2 PROGRAM SEQUENCER PROGRAM MEMORY 32K 24 BIT DATA MEMORY 48K 16 BIT FULL MEMORY MODE PROGRAMMABLE I/O AND FLAGS EXTERNAL ADDRESS BUS EXTERNAL DATA BUS BYTE DMA CONTROLLER PROGRAM MEMORY ADDRESS DATA MEMORY ADDRESS PROGRAM MEMORY DATA OR DATA MEMORY DATA EXTERNAL DATA BUS ARITHMETIC UNITS ALU MAC SHIFTER SERIAL PORTS SPORT 0 SPORT 1 TIMER INTERNAL DMA PORT HOST MODE ADSP-2100 BASE ARCHITECTURE Figure 1. Functional Block Diagram Figure 1 is an overall block diagram of the ADSP-2189M. The processor contains three independent computational units: the ALU, the multiplier/accumulator (MAC) and the shifter. The computational units process 16-bit data directly and have provisions to support multiprecision computations. The ALU performs a standard set of arithmetic and logic operations; division primitives are also supported. The MAC performs single-cycle multiply, multiply/add and multiply/subtract operations with 40 bits of accumulation. The shifter performs logical and arithmetic shifts, normalization, denormalization and derive exponent operations. The shifter can be used to efficiently implement numeric format control including multiword and block floating-point representations. –2– REV. 0 ADSP-2189M The internal result (R) bus connects the computational units so that the output of any unit may be the input of any unit on the next cycle. A powerful program sequencer and two dedicated data address generators ensure efficient delivery of operands to these computational units. The sequencer supports conditional jumps, subroutine calls and returns in a single cycle. With internal loop counters and loop stacks, the ADSP-2189M executes looped code with zero overhead; no explicit jump instructions are required to maintain loops. Two data address generators (DAGs) provide addresses for simultaneous dual operand fetches (from data memory and program memory). Each DAG maintains and updates four address pointers. Whenever the pointer is used to access data (indirect addressing), it is post-modified by the value of one of four possible modify registers. A length value may be associated with each pointer to implement automatic modulo addressing for circular buffers. Efficient data transfer is achieved with the use of five internal buses: • • • • • Program Memory Address (PMA) Bus Program Memory Data (PMD) Bus Data Memory Address (DMA) Bus Data Memory Data (DMD) Bus Result (R) Bus RESET signal. The two serial ports provide a complete synchronous serial interface with optional companding in hardware and a wide variety of framed or frameless data transmit and receive modes of operation. Each port can generate an internal programmable serial clock or accept an external serial clock. The ADSP-2189M provides up to 13 general-purpose flag pins. The data input and output pins on SPORT1 can be alternatively configured as an input flag and an output flag. In addition, eight flags are programmable as inputs or outputs and three flags are always outputs. A programmable interval timer generates periodic interrupts. A 16-bit count register (TCOUNT) decrements every n processor cycles, where n is a scaling value stored in an 8-bit register (TSCALE). When the value of the count register reaches zero, an interrupt is generated and the count register is reloaded from a 16-bit period register (TPERIOD). Serial Ports The ADSP-2189M incorporates two complete synchronous serial ports (SPORT0 and SPORT1) for serial communications and multiprocessor communication. Here is a brief list of the capabilities of the ADSP-2189M SPORTs. For additional information on Serial Ports, refer to the ADSP-2100 Family User’s Manual, Third Edition. • SPORTs are bidirectional and have a separate, double-buffered transmit and receive section. • SPORTs can use an external serial clock or generate their own serial clock internally. • SPORTs have independent framing for the receive and transmit sections. Sections run in a frameless mode or with frame synchronization signals internally or externally generated. Frame sync signals are active high or inverted, with either of two pulsewidths and timings. • SPORTs support serial data word lengths from 3 to 16 bits and provide optional A-law and µ-law companding according to CCITT recommendation G.711. • SPORT receive and transmit sections can generate unique interrupts on completing a data word transfer. • SPORTs can receive and transmit an entire circular buffer of data with only one overhead cycle per data word. An interrupt is generated after a data buffer transfer. • SPORT0 has a multichannel interface to selectively receive and transmit a 24- or 32-word, time-division multiplexed, serial bitstream. • SPORT1 can be configured to have two external interrupts (IRQ0 and IRQ1) and the Flag In and Flag Out signals. The internally generated serial clock may still be used in this configuration. PIN DESCRIPTIONS The two address buses (PMA and DMA) share a single external address bus, allowing memory to be expanded off-chip and the two data buses (PMD and DMD) share a single external data bus. Byte memory space and I/O memory space also share the external buses. Program memory can store both instructions and data, permitting the ADSP-2189M to fetch two operands in a single cycle, one from program memory and one from data memory. The ADSP-2189M can fetch an operand from program memory and the next instruction in the same cycle. In lieu of the address and data bus for external memory connection, the ADSP-2189M may be configured for 16-bit Internal DMA port (IDMA port) connection to external systems. The IDMA port is made up of 16 data/address pins and five control pins. The IDMA port provides transparent, direct access to the DSPs on-chip program and data RAM. An interface to low cost byte-wide memory is provided by the Byte DMA port (BDMA port). The BDMA port is bidirectional and can directly address up to four megabytes of external RAM or ROM for off-chip storage of program overlays or data tables. The byte memory and I/O memory space interface supports slow memories and I/O memory-mapped peripherals with programmable wait-state generation. External devices can gain control of external buses with bus request/grant signals (BR, BGH and BG). One execution mode (Go Mode) allows the ADSP-2189M to continue running from on-chip memory. Normal execution mode requires the processor to halt while buses are granted. The ADSP-2189M can respond to eleven interrupts. There can be up to six external interrupts (one edge-sensitive, two levelsensitive and three configurable) and seven internal interrupts generated by the timer, the serial ports (SPORTs), the Byte DMA port and the power-down circuitry. There is also a master REV. 0 –3– The ADSP-2189M will be available in a 100-lead LQFP package. In order to maintain maximum functionality and reduce package size and pin count, some serial port, programmable flag, interrupt and external bus pins have dual, multiplexed functionality. The external bus pins are configured during RESET only, while serial port pins are software configurable during program execution. Flag and interrupt functionality is retained concurrently on multiplexed pins. In cases where pin ADSP-2189M functionality is reconfigurable, the default state is shown in plain text; alternate functionality is shown in italics. Common-Mode Pins NOTES 1 Interrupt/Flag Pins retain both functions concurrently. If IMASK is set to enable the corresponding interrupts, then the DSP will vector to the appropriate interrupt vector address when the pin is asserted, either by external devices, or set as a programmable flag. 2 SPORT configuration determined by the DSP System Control Register. Software configurable. Pin Name(s) RESET BR BG BGH DMS PMS IOMS BMS CMS RD WR IRQ2 PF7 IRQL0 PF6 IRQL1 PF5 IRQE PF4 Mode D PF3 Mode C PF2 Mode B PF1 Mode A PF0 CLKIN, XTAL CLKOUT SPORT0 SPORT1 IRQ1:0, FI, FO PWD PWDACK FL0, FL1, FL2 VDDINT VDDEXT GND EZ-Port # of Pins I/O Function 1 1 1 1 1 1 1 1 1 1 1 1 I I O O O O O O O O O I I/O I I/O I I/O I I/O I I/O 1 I I/O 1 I I/O 1 I I/O 2 1 5 5 I O I/O I/O Processor Reset Input Bus Request Input Bus Grant Output Bus Grant Hung Output Data Memory Select Output Program Memory Select Output Memory Select Output Byte Memory Select Output Combined Memory Select Output Memory Read Enable Output Memory Write Enable Output Edge- or Level-Sensitive Interrupt Requests1 Programmable I/O Pin. Level-Sensitive Interrupt Requests1 Programmable I/O Pin Level-Sensitive Interrupt Requests1 Programmable I/O Pin Edge-Sensitive Interrupt Requests1 Programmable I/O Pin Mode Select Input—Checked Only During RESET Programmable I/O Pin During Normal Operation Mode Select Input—Checked Only During RESET Programmable I/O Pin During Normal Operation Mode Select Input—Checked Only During RESET Programmable I/O Pin During Normal Operation Mode Select Input—Checked Only During RESET Programmable I/O Pin During Normal Operation Clock or Quartz Crystal Input Processor Clock Output Serial Port I/O Pins Serial Port I/O Pins Edge- or Level-Sensitive Interrupts, Flag In, Flag Out2 Power-Down Control Input Power-Down Control Output Output Flags Internal VDD (2.5 V) Power External VDD (2.5 V or 3.3 V) Power Ground For Emulation Use –4– Memory Interface Pins The ADSP-2189M processor can be used in one of two modes, Full Memory Mode, which allows BDMA operation with full external overlay memory and I/O capability, or Host Mode, which allows IDMA operation with limited external addressing capabilities. The operating mode is determined by the state of the Mode C pin during RESET and cannot be changed while the processor is running. Full Memory Mode Pins (Mode C = 0) Pin Name A13:0 D23:0 # of Pins 14 24 I/O O I/O Function Address Output Pins for Program, Data, Byte and I/O Spaces Data I/O Pins for Program, Data, Byte and I/O Spaces (8 MSBs are also used as Byte Memory addresses.) 1 1 1 1 Host Mode Pins (Mode C = 1) Pin Name IAD15:0 A0 D23:8 IWR IRD IAL IS IACK # of Pins 16 1 16 1 1 1 1 1 I/O I/O O I/O I I I I O Function IDMA Port Address/Data Bus Address Pin for External I/O, Program, Data, or Byte Access1 Data I/O Pins for Program, Data Byte and I/O Spaces IDMA Write Enable IDMA Read Enable IDMA Address Latch Pin IDMA Select IDMA Port Acknowledge Configurable in Mode D; Open Drain NOTE 1 In Host Mode, external peripheral addresses can be decoded using the A0, CMS, PMS, DMS and IOMS signals. Interrupts 1 1 3 2 4 10 9 I O O I I I I/O The interrupt controller allows the processor to respond to the eleven possible interrupts and reset with minimum overhead. The ADSP-2189M provides four dedicated external interrupt input pins, IRQ2, IRQL0, IRQL1 and IRQE (shared with the PF7:4 pins). In addition, SPORT1 may be reconfigured for IRQ0, IRQ1, FLAG_IN and FLAG_OUT, for a total of six external interrupts. The ADSP-2189M also supports internal interrupts from the timer, the byte DMA port, the two serial ports, software and the power-down control circuit. The interrupt levels are internally prioritized and individually maskable (except power-down and reset). The IRQ2, IRQ0 and IRQ1 input pins can be programmed to be either level- or edge-sensitive. IRQL0 and IRQL1 are level-sensitive and IRQE is edgesensitive. The priorities and vector addresses of all interrupts are shown in Table I. REV. 0 ADSP-2189M Table I. Interrupt Priority and Interrupt Vector Addresses Source Of Interrupt RESET (or Power-Up with PUCR = 1) Power-Down (Nonmaskable) IRQ2 IRQL1 IRQL0 SPORT0 Transmit SPORT0 Receive IRQE BDMA Interrupt SPORT1 Transmit or IRQ1 SPORT1 Receive or IRQ0 Timer Interrupt Vector Address (Hex) 0000 (Highest Priority) 002C 0004 0008 000C 0010 0014 0018 001C 0020 0024 0028 (Lowest Priority) Third Edition, “System Interface” chapter, for detailed information about the power-down feature. • Quick recovery from power-down. The processor begins executing instructions in as few as 200 CLKIN cycles. • Support for an externally generated TTL or CMOS processor clock. The external clock can continue running during power-down without affecting the lowest power rating and 200 CLKIN cycle recovery. • Support for crystal operation includes disabling the oscillator to save power (the processor automatically waits approximately 4096 CLKIN cycles for the crystal oscillator to start or stabilize) and letting the oscillator run to allow 200 CLKIN cycle start up. • Power-down is initiated by either the power-down pin (PWD) or the software power-down force bit. Interrupt support allows an unlimited number of instructions to be executed before optionally powering down. The power-down interrupt also can be used as a nonmaskable, edge-sensitive interrupt. • Context clear/save control allows the processor to continue where it left off or start with a clean context when leaving the power-down state. • The RESET pin also can be used to terminate power-down. • Power-down acknowledge pin indicates when the processor has entered power-down. Idle Interrupt routines can either be nested with higher priority interrupts taking precedence or processed sequentially. Interrupts can be masked or unmasked with the IMASK register. Individual interrupt requests are logically ANDed with the bits in IMASK; the highest priority unmasked interrupt is then selected. The power-down interrupt is nonmaskable. The ADSP-2189M masks all interrupts for one instruction cycle following the execution of an instruction that modifies the IMASK register. This does not affect serial port autobuffering or DMA transfers. The interrupt control register, ICNTL, controls interrupt nesting and defines the IRQ0, IRQ1 and IRQ2 external interrupts to be either edge- or level-sensitive. The IRQE pin is an external edge-sensitive interrupt and can be forced and cleared. The IRQL0 and IRQL1 pins are external level-sensitive interrupts. The IFC register is a write-only register used to force and clear interrupts. On-chip stacks preserve the processor status and are automatically maintained during interrupt handling. The stacks are twelve levels deep to allow interrupt, loop and subroutine nesting. The following instructions allow global enable or disable servicing of the interrupts (including power-down), regardless of the state of IMASK. Disabling the interrupts does not affect serial port autobuffering or DMA. ENA INTS; DIS INTS; When the processor is reset, interrupt servicing is enabled. LOW POWER OPERATION When the ADSP-2189M is in the Idle Mode, the processor waits indefinitely in a low power state until an interrupt occurs. When an unmasked interrupt occurs, it is serviced; execution then continues with the instruction following the IDLE instruction. In Idle mode IDMA, BDMA and autobuffer cycle steals still occur. Slow Idle The IDLE instruction is enhanced on the ADSP-2189M to let the processor’s internal clock signal be slowed, further reducing power consumption. The reduced clock frequency, a programmable fraction of the normal clock rate, is specified by a selectable divisor given in the IDLE instruction. The format of the instruction is: IDLE (n); where n = 16, 32, 64 or 128. This instruction keeps the processor fully functional, but operating at the slower clock rate. While it is in this state, the processor’s other internal clock signals, such as SCLK, CLKOUT and timer clock, are reduced by the same ratio. The default form of the instruction, when no clock divisor is given, is the standard IDLE instruction. When the IDLE (n) instruction is used, it effectively slows down the processor’s internal clock and thus its response time to incoming interrupts. The one-cycle response time of the standard idle state is increased by n, the clock divisor. When an enabled interrupt is received, the ADSP-2189M will remain in the idle state for up to a maximum of n processor cycles (n = 16, 32, 64, or 128) before resuming normal operation. When the IDLE (n) instruction is used in systems that have an externally generated serial clock (SCLK), the serial clock rate may be faster than the processor’s reduced internal clock rate. Under these conditions, interrupts must not be generated at a –5– The ADSP-2189M has three low power modes that significantly reduce the power dissipation when the device operates under standby conditions. These modes are: • Power-Down • Idle • Slow Idle The CLKOUT pin may also be disabled to reduce external power dissipation. Power-Down The ADSP-2189M processor has a low power feature that lets the processor enter a very low power dormant state through hardware or software control. Here is a brief list of powerdown features. Refer to the ADSP-2100 Family User’s Manual, REV. 0 ADSP-2189M faster rate than can be serviced, due to the additional time the processor takes to come out of the idle state (a maximum of n processor cycles). SYSTEM INTERFACE Clock Signals The ADSP-2189M can be clocked by either a crystal or a TTLcompatible clock signal. The CLKIN input cannot be halted, changed during operation, or operated below the specified frequency during normal operation. The only exception is while the processor is in the powerdown state. For additional information, refer to Chapter 9, ADSP-2100 Family User’s Manual, Third Edition for detailed information on this power-down feature. If an external clock is used, it should be a TTL-compatible signal running at half the instruction rate. The signal is connected to the processor’s CLKIN input. When an external clock is used, the XTAL input must be left unconnected. The ADSP-2189M uses an input clock with a frequency equal to half the instruction rate; a 37.50 MHz input clock yields a 15 ns processor cycle (which is equivalent to 77 MHz). Normally, instructions are executed in a single processor cycle. All device timing is relative to the internal instruction clock rate, which is indicated by the CLKOUT signal when enabled. Because the ADSP-2189M includes an on-chip oscillator circuit, an external crystal may be used. The crystal should be connected across the CLKIN and XTAL pins, with two capacitors connected as shown in Figure 3. Capacitor values are dependent on crystal type and should be specified by the crystal manufacturer. A parallel-resonant, fundamental frequency, microprocessor-grade crystal should be used. A clock output (CLKOUT) signal is generated by the processor at the processor’s cycle rate. This can be enabled and disabled by the CLKODIS bit in the SPORT0 Autobuffer Control Register. Figure 2 shows typical basic system configurations with the ADSP-2189M, two serial devices, a byte-wide EPROM and optional external program and data overlay memories (mode selectable). Programmable Wait-State generation allows the processor connects easily to slow peripheral devices. The ADSP-2189M also provides four external interrupts and two serial ports or six external interrupts and one serial port. Host Memory Mode allows access to the full external data bus, but limits addressing to a single address bit (A0). Additional system peripherals can be added in this mode through the use of external hardware to generate and latch address signals. FULL MEMORY MODE ADSP-2189M 1/2x CLOCK OR CRYSTAL CLKIN XTAL FL0-2 DATA23-0 IRQ2/PF7 IRQE/PF4 IRQL0/PF5 IRQL1/PF6 MODE D/PF3 MODE C/PF2 MODE B/PF1 MODE A/PF0 BMS WR RD ADDR13-0 14 A13-0 D23-16 A0-A21 24 D15-8 DATA CS A10-0 ADDR D23-8 BYTE MEMORY DATA (PERIPHERALS) IOMS A13-0 ADDR D23-0 DATA PMS DMS CMS BR BG BGH PWD PWDACK CS 2048 LOCATIONS I/O SPACE SPORT1 SERIAL DEVICE SCLK1 RFS1 OR IRQ0 TFS1 OR IRQ1 DT1 OR FO DR1 OR FI OVERLAY MEMORY TWO 8K PM SEGMENTS TWO 8K DM SEGMENTS SPORT0 SERIAL DEVICE SCLK0 RFS0 TFS0 DT0 DR0 CLKIN XTAL CLKOUT HOST MEMORY MODE DSP 1 ADSP-2189M 1/2x CLOCK OR CRYSTAL CLKIN XTAL FL0-2 IRQ2/PF7 IRQE/PF4 IRQL0/PF5 IRQL1/PF6 MODE D/PF3 MODE C/PF2 MODE B/PF1 MODE A/PF0 16 DATA23-8 BMS WR RD A0 Figure 3. External Crystal Connections Reset SPORT1 SERIAL DEVICE SCLK1 RFS1 OR IRQ0 TFS1 OR IRQ1 DT1 OR FO DR1 OR FI IOMS The RESET signal initiates a master reset of the ADSP-2189M. The RESET signal must be asserted during the power-up sequence to assure proper initialization. RESET during initial power-up must be held long enough to allow the internal clock to stabilize. If RESET is activated any time after power-up, the clock continues to run and does not require stabilization time. The power-up sequence is defined as the total time required for the crystal oscillator circuit to stabilize after a valid VDD is applied to the processor and for the internal phase-locked loop (PLL) to lock onto the specific crystal frequency. A minimum of 2000 CLKIN cycles ensures that the PLL has locked but does not include the crystal oscillator start-up time. During this power-up sequence the RESET signal should be held low. On any subsequent resets, the RESET signal must meet the minimum pulsewidth specification, tRSP. The RESET input contains some hysteresis; however, if you use an RC circuit to generate your RESET signal, the use of an external Schmidt trigger is recommended. SPORT0 SERIAL DEVICE SCLK0 RFS0 TFS0 DT0 DR0 PMS DMS CMS BR BG BGH PWD PWDACK IDMA PORT SYSTEM INTERFACE OR CONTROLLER IRD/D6 IWR/D7 IS/D4 IAL/D5 IACK/D3 IAD15-0 16 Figure 2. ADSP-2189M Basic System Interface –6– REV. 0 ADSP-2189M Table II. ADSP-2189M Modes of Operation MODE D X MODE C 0 MODE B 0 MODE A 0 Booting Method BDMA feature is used to load the first 32 program memory words from the byte memory space. Program execution is held off until all 32 words have been loaded. Chip is configured in Full Memory Mode.1 No automatic boot operations occur. Program execution starts at external memory location 0. Chip is configured in Full Memory Mode. BDMA can still be used but the processor does not automatically use or wait for these operations. BDMA feature is used to load the first 32 program memory words from the byte memory space. Program execution is held off until all 32 words have been loaded. Chip is configured in Host Mode. IACK has active pull-down. (REQUIRES ADDITIONAL HARDWARE). IDMA feature is used to load any internal memory as desired. Program execution is held off until internal program memory location 0 is written to. Chip is configured in Host Mode. IACK has active pull-down.1 BDMA feature is used to load the first 32 program memory words from the byte memory space. Program execution is held off until all 32 words have been loaded. Chip is configured in Host Mode; IACK requires external pulldown. (REQUIRES ADDITIONAL HARDWARE). IDMA feature is used to load any internal memory as desired. Program execution is held off until internal program memory location 0 is written to. Chip is configured in Host Mode. IACK requires external pull-down.1 X 0 1 0 0 1 0 0 0 1 0 1 1 1 0 0 1 1 0 1 NOTE 1 Considered as standard operating settings. Using these configurations allows for easier design and better memory management. The master reset sets all internal stack pointers to the empty stack condition, masks all interrupts and clears the MSTAT register. When RESET is released, if there is no pending bus request and the chip is configured for booting, the boot-loading sequence is performed. The first instruction is fetched from on-chip program memory location 0x0000 once boot loading completes. Power Supplies The ADSP-2189M has separate power supply connections for the internal (VDDINT) and external (VDDEXT) power supplies. The internal supply must meet the 2.5 V requirement. The external supply can be connected to either a 2.5 V or 3.3 V supply. All external supply pins must be connected to the same supply. All input and I/O pins can tolerate input voltages up to 3.6 V regardless of the external supply voltage. This feature provides maximum flexibility in mixing 2.5 V and 3.3 V components. MODES OF OPERATION Setting Memory Mode Passive Configuration involves the use a pull-up or pull-down resistor connected to the Mode C pin. To minimize power consumption, or if the PF2 pin is to be used as an output in the DSP application, a weak pull-up or pull-down, on the order of 100 kΩ, can be used. This value should be sufficient to pull the pin to the desired level and still allow the pin to operate as a programmable flag output without undue strain on the processor’s output driver. For minimum power consumption during powerdown, reconfigure PF2 to be an input, as the pull-up or pulldown will hold the pin in a known state and will not switch. Active Configuration involves the use of a three-statable external driver connected to the Mode C pin. A driver’s output enable should be connected to the DSP’s RESET signal such that it only drives the PF2 pin when RESET is active (low). When RESET is deasserted, the driver should three-state, thus allowing full use of the PF2 pin as either an input or output. To minimize power consumption during power-down, configure the programmable flag as an output when connected to a threestated buffer. This ensures that the pin will be held at a constant level and will not oscillate should the three-state driver’s level hover around the logic switching point. IACK Configuration Mode D = 0 and in host mode: IACK is an active, driven signal and cannot be wire OR-ed. Memory Mode selection for the ADSP-2189M is made during chip reset through the use of the Mode C pin. This pin is multiplexed with the DSP’s PF2 pin, so care must be taken in how the mode selection is made. The two methods for selecting the value of Mode C are active and passive. REV. 0 –7– ADSP-2189M PM (MODE B = 0) ALWAYS ACCESSIBLE AT ADDRESS 0 0000 – 0 1FFF 0 2000– 0 3FFF 0 2000– 0 3FFF PM (MODE B = 1)1 RESERVED 0 2000– 0 3FFF ACCESSIBLE WHEN PMOVLAY = 0 ACCESSIBLE WHEN PMOVLAY = 0 INTERNAL MEMORY INTERNAL RESERVED MEMORY 0 2000– 0 0000– RESERVED 0 3FFF 0 1FFF2 0 2000– 0 0000– ACCESSIBLE WHEN ACCESSIBLE WHEN 0 3FFF2 PMOVLAY = 5 PMOVLAY = 1 0 1FFF2 0 2000– EXTERNAL ACCESSIBLE WHEN RESERVED 2 0 3FFF MEMORY PMOVLAY = 1 EXTERNAL ACCESSIBLE WHEN 1WHEN MODE B = 1, PMOVLAY MUST BE SET TO 0 MEMORY PMOVLAY = 2 2SEE TABLE III FOR PMOVLAY BITS ACCESSIBLE WHEN PMOVLAY = 4 PROGRAM MEMORY MODE B = 1 ADDRESS 0 3FFF 8K INTERNAL PMOVLAY = 0 0 2000 0 1FFF 8K INTERNAL 0 0000 8K EXTERNAL 0 0000 0 2000 0 1FFF PROGRAM MEMORY MODE B = 0 ADDRESS 0 3FFF 8K INTERNAL PMOVLAY = 0, 4, 5 OR 8K EXTERNAL PMOVLAY = 1, 2 Figure 4. Program Memory Mode D = 1 and in host mode: IACK is an open source and requires an external pull-down, but multiple IACK pins can be wire OR-ed together. MEMORY ARCHITECTURE Data Memory The ADSP-2189M provides a variety of memory and peripheral interface options. The key functional groups are Program Memory, Data Memory, Byte Memory and I/O. Refer to the following figures and tables for PM and DM memory allocations in the ADSP-2189M. Program Memory Data Memory, Full Memory Mode is a 16-bit-wide space used for the storage of data variables and for memory-mapped control registers. The ADSP-2189M has 48K words on Data Memory RAM on-chip. Part of this space is used by 32 memorymapped registers. Support also exists for up to two 8K external memory overlay spaces through the external data bus. All internal accesses complete in one cycle. Accesses to external memory are timed using the wait-states specified by the DWAIT register and the wait-state mode bit. DATA MEMORY DATA MEMORY ALWAYS ACCESSIBLE AT ADDRESS 0 2000 – 0 3FFF ACCESSIBLE WHEN DMOVLAY = 0 0 0000– 0 1FFF 0 0000– 0 1FFF 0 0000– 0 1FFF 0 0000– 0 1FFF 0 0000– 0 1FFF 0 0000– 0 1FFF 0 0000– 0 1FFF 32 MEMORY– MAPPED REGISTERS INTERNAL 8160 WORDS 8K INTERNAL DMOVLAY = 0, 4, 5, 6, 7 OR EXTERNAL 8K DMOVLAY = 1, 2 ADDRESS 0 3FFF 0 3FE0 0 3FDF 0 2000 0 1FFF Program Memory, Full Memory Mode is a 24-bit-wide space for storing both instruction op codes and data. The ADSP-2189M has 32K words of Program Memory RAM on chip and the capability of accessing up to two 8K external memory overlay spaces using the external data bus. Program Memory, Host Mode allows access to all internal memory. External overlay access is limited by a single external address line (A0). External program execution is not available in host mode due to a restricted data bus that is 16-bits wide only. Table III. PMOVLAY Bits ACCESSIBLE WHEN DMOVLAY = 4 ACCESSIBLE WHEN DMOVLAY = 5 INTERNAL MEMORY 0 0000 ACCESSIBLE WHEN DMOVLAY = 6 ACCESSIBLE WHEN DMOVLAY = 7 PMOVLAY 0, 4, 5 1 Memory Internal External Overlay 1 External Overlay 2 A13 A12:0 2 Not Applicable Not Applicable 0 13 LSBs of Address Between 0x2000 and 0x3FFF 1 13 LSBs of Address Between 0x2000 and 0x3FFF ACCESSIBLE WHEN DMOVLAY = 1 EXTERNAL MEMORY ACCESSIBLE WHEN DMOVLAY = 2 Figure 5. Data Memory Map –8– REV. 0 ADSP-2189M Data Memory, Host Mode allows access to all internal memory. External overlay access is limited by a single external address line (A0). Table IV. DMOVLAY Bits I/O Space (Full Memory Mode) PMOVLAY 0, 4, 5, 6, 7 1 Memory Internal External Overlay 1 External Overlay 2 A13 A12:0 2 Not Applicable Not Applicable 0 13 LSBs of Address Between 0x2000 and 0x3FFF 1 13 LSBs of Address Between 0x2000 and 0x3FFF The ADSP-2189M supports an additional external memory space called I/O space. This space is designed to support simple connections to peripherals (such as data converters and external registers) or to bus interface ASIC data registers. I/O space supports 2048 locations of 16-bit-wide data. The lower eleven bits of the external address bus are used; the upper three bits are undefined. Two instructions were added to the core ADSP-2100 Family instruction set to read from and write to I/O memory space. The I/O space also has four dedicated three-bit wait-state registers, IOWAIT0–3, which, in combination with the waitstate mode bit, specify up to 15 wait-states to be automatically generated for each of four regions. The wait-states act on address ranges as shown in Table V. Table V. Wait-States Memory Mapped Registers (New to the ADSP-2189M) The ADSP-2189M has three memory mapped registers that differ from other ADSP-21xx Family DSPs. The slight modifications to these registers (Wait-State Control, Programmable Flag and Composite Select Control and System Control) provide the ADSP-2189M’s wait-state and BMS control features. WAIT-STATE CONTROL 15 14 13 12 11 10 1 1 1 1 1 1 9 1 8 1 7 1 6 1 5 1 4 1 3 1 2 1 1 1 0 1 DM(0x3FFE) Address Range 0x000–0x1FF 0x200–0x3FF 0x400–0x5FF 0x600–0x7FF Wait-State Register IOWAIT0 and Wait-State Mode Select Bit IOWAIT1 and Wait-State Mode Select Bit IOWAIT2 and Wait-State Mode Select Bit IOWAIT3 and Wait-State Mode Select Bit Composite Memory Select (CMS) DWAIT IOWAIT3 IOWAIT2 IOWAIT1 IOWAIT0 WAIT STATE MODE SELECT (ADSP-2189M) 0 = NORMAL MODE (DWAIT, IOWAIT0-3 = N WAIT STATES, RANGING FROM 0 TO 7) 1 = 2N+1 MODE (DWAIT, IOWAIT0-3 = N WAIT STATES, RANGING FROM 0 TO 15) Figure 6. Wait-State Control Register (ADSP-2189M) PROGRAMMABLE FLAG & COMPOSITE SELECT CONTROL 15 14 13 12 11 10 1 1 1 1 1 1 9 1 8 1 7 1 6 1 5 1 4 1 3 1 2 1 1 1 0 1 DM(0x3FE6) The ADSP-2189M has a programmable memory select signal that is useful for generating memory select signals for memories mapped to more than one space. The CMS signal is generated to have the same timing as each of the individual memory select signals (PMS, DMS, BMS, IOMS) but can combine their functionality. When set, each bit in the CMSSEL register causes the CMS signal to be asserted when the selected memory select is asserted. For example, to use a 32K word memory to act as both program and data memory, set the PMS and DMS bits in the CMSSEL register and use the CMS pin to drive the chip select of the memory, and use either DMS or PMS as the additional address bit. The CMS pin functions like the other memory select signals, with the same timing and bus request logic. A 1 in the enable bit causes the assertion of the CMS signal at the same time as the selected memory select signal. All enable bits default to 1 at reset, except the BMS bit. Byte Memory Select (BMS) BMWAIT (BIT-15, ADSP-2189M) CMSSEL 0 = DISABLE CMS 1 = ENABLE CMS PFTYPE 0 = INPUT 1 = OUTPUT (WHERE BIT: 11-IOM, 10BM, 9-DM, 8-PM) Figure 7. Programmable Flag and Composite Select Control Register SYSTEM CONTROL 15 14 13 12 11 10 0 0 0 0 0 1 9 0 8 0 7 0 6 0 5 0 4 0 3 0 2 1 1 1 0 1 DM(0x3FFF) RESERVED, ALWAYS = 0 (ADSP-2189M) SPORT0 ENABLE 0 = DISABLE 1 = ENABLE SPORT1 ENABLE 0 = DISABLE 1 = ENABLE SPORT1 CONFIGURE 0 = FI, FO, IRQ0, IRQ1, SCLK 1 = SPORT1 PWAIT PROGRAM MEMORY WAIT STATES DISABLE BMS (ADSP-2189M) 0 = ENABLE BMS 1 = DISABLE BMS, EXCEPT WHEN MEMORY STROBES ARE THREE-STATED The ADSP-2189M’s BMS disable feature combined with the CMS pin lets you use multiple memories in the byte memory space. For example, an EPROM could be attached to the BMS select, and an SRAM could be connected to CMS. Because BMS is enabled at reset, the EPROM would be used for booting. After booting, software could disable BMS and set the CMS signal to respond to BMS, enabling the SRAM. Figure 8. System Control Register REV. 0 –9– ADSP-2189M Byte Memory The byte memory space is a bidirectional, 8-bit-wide, external memory space used to store programs and data. Byte memory is accessed using the BDMA feature. The byte memory space consists of 256 pages, each of which is 16K × 8. The byte memory space on the ADSP-2189M supports read and write operations as well as four different data formats. The byte memory uses data bits 15:8 for data. The byte memory uses data bits 23:16 and address bits 13:0 to create a 22-bit address. This allows up to a 4 meg × 8 (32 megabit) ROM or RAM to be used without glue logic. All byte memory accesses are timed by the BMWAIT register and the wait-state mode bit. Byte Memory DMA (BDMA, Full Memory Mode) BDMA accesses can cross page boundaries during sequential addressing. A BDMA interrupt is generated on the completion of the number of transfers specified by the BWCOUNT register. The BWCOUNT register is updated after each transfer so it can be used to check the status of the transfers. When it reaches zero, the transfers have finished and a BDMA interrupt is generated. The BMPAGE and BEAD registers must not be accessed by the DSP during BDMA operations. The source or destination of a BDMA transfer will always be on-chip program or data memory. When the BWCOUNT register is written with a nonzero value the BDMA circuit starts executing byte memory accesses with wait-states set by BMWAIT. These accesses continue until the count reaches zero. When enough accesses have occurred to create a destination word, it is transferred to or from on-chip memory. The transfer takes one DSP cycle. DSP accesses to external memory have priority over BDMA byte memory accesses. The BDMA Context Reset bit (BCR) controls whether the processor is held off while the BDMA accesses are occurring. Setting the BCR bit to 0 allows the processor to continue operations. Setting the BCR bit to 1 causes the processor to stop execution while the BDMA accesses are occurring, to clear the context of the processor, and start execution at address 0 when the BDMA accesses have completed. The BDMA overlay bits specify the OVLAY memory blocks to be accessed for internal memory. The BMWAIT field, which has four bits on ADSP-2189M, allows selection of up to 15 wait-states for BDMA transfers. Internal Memory DMA Port (IDMA Port; Host Memory Mode) The Byte memory DMA controller allows loading and storing of program instructions and data using the byte memory space. The BDMA circuit is able to access the byte memory space while the processor is operating normally and steals only one DSP cycle per 8-, 16- or 24-bit word transferred. 15 14 13 12 11 10 0 0 0 0 0 0 BDMA CONTROL 98765 0 0 0 0 0 4 0 3 1 2 0 1 0 0 0 DM (0 3FE3) BMPAGE BDMA OVERLAY BITS BTYPE BDIR 0 = LOAD FROM BM 1 = STORE TO BM BCR 0 = RUN DURING BDMA 1 = HALT DURING BDMA Figure 9. BDMA Control Register The BDMA circuit supports four different data formats which are selected by the BTYPE register field. The appropriate number of 8-bit accesses are done from the byte memory space to build the word size selected. Table VI shows the data formats supported by the BDMA circuit. Table VI. Data Formats BTYPE 00 01 10 11 Internal Memory Space Program Memory Data Memory Data Memory Data Memory Word Size 24 16 8 8 Alignment Full Word Full Word MSBs LSBs The IDMA Port provides an efficient means of communication between a host system and the ADSP-2189M. The port is used to access the on-chip program memory and data memory of the DSP with only one DSP cycle per word overhead. The IDMA port cannot, however, be used to write to the DSP’s memorymapped control registers. A typical IDMA transfer process is described as follows: 1. Host starts IDMA transfer. 2. Host checks IACK control line to see if the DSP is busy. 3. Host uses IS and IAL control lines to latch either the DMA starting address (IDMAA) or the PM/DM OVLAY selection into the DSP’s IDMA control registers. If Bit 15 = 1, the value of bits 7:0 represent the IDMA overlay: Bits 14:8 must be set to 0. If Bit 15 = 0, the value of bits 13:0 represent the starting address of internal memory to be accessed and Bit 14 reflects PM or DM for access. 4. Host uses IS and IRD (or IWR) to read (or write) DSP internal memory (PM or DM). 5. Host checks IACK line to see if the DSP has completed the previous IDMA operation. 6. Host ends IDMA transfer. Unused bits in the 8-bit data memory formats are filled with 0s. The BIAD register field is used to specify the starting address for the on-chip memory involved with the transfer. The 14-bit BEAD register specifies the starting address for the external byte memory space. The 8-bit BMPAGE register specifies the starting page for the external byte memory space. The BDIR register field selects the direction of the transfer. Finally, the 14-bit BWCOUNT register specifies the number of DSP words to transfer and initiates the BDMA circuit transfers. –10– REV. 0 ADSP-2189M The IDMA port has a 16-bit multiplexed address and data bus and supports 24-bit program memory. The IDMA port is completely asynchronous and can be written while the ADSP-2189M is operating at full speed. The DSP memory address is latched and then automatically incremented after each IDMA transaction. An external device can therefore access a block of sequentially addressed memory by specifying only the starting address of the block. This increases throughput as the address does not have to be sent for each memory access. IDMA Port access occurs in two phases. The first is the IDMA Address Latch cycle. When the acknowledge is asserted, a 14-bit address and 1-bit destination type can be driven onto the bus by an external device. The address specifies an on-chip memory location, the destination type specifies whether it is a DM or PM access. The falling edge of the IDMA address latch signal (IAL) or the missing edge of the IDMA select signal (IS) latches this value into the IDMAA register. Once the address is stored, data can then be either read from, or written to, the ADSP-2189M’s on-chip memory. Asserting the select line (IS) and the appropriate read or write line (IRD and IWR respectively) signals the ADSP-2189M that a particular transaction is required. In either case, there is a one-processorcycle delay for synchronization. The memory access consumes one additional processor cycle. Once an access has occurred, the latched address is automatically incremented and another access can occur. Through the IDMAA register, the DSP can also specify the starting address and data format for DMA operation. Asserting the IDMA port select (IS) and address latch enable (IAL) directs the ADSP-2189M to write the address onto the IAD0-14 bus into the IDMA Control Register. If Bit 15 is set to 0, IDMA latches the address. If Bit 15 is set to 1, IDMA latches into the OVLAY register. This register, shown below, is memory mapped at address DM (0x3FE0). Note that the latched address (IDMAA) cannot be read back by the host. Refer to the following figures for more information on IDMA and DMA memory maps. IDMA OVERLAY 15 14 13 12 11 10 0 0 0 0 0 9 0 8 0 7 0 6 0 5 0 4 0 3 0 2 0 1 0 0 0 DM(0 3FE7) DMA PROGRAM MEMORY OVLAY ALWAYS ACCESSIBLE AT ADDRESS 0 0000 – 0 1FFF ACCESSIBLE WHEN PMOVLAY = 0 DMA DATA MEMORY OVLAY ALWAYS ACCESSIBLE AT ADDRESS 0 2000 – 0 3FFF ACCESSIBLE WHEN DMOVLAY = 0 0 2000– 0 3FFF 0 2000– 0 3FFF 0 0000– 0 1FFF 0 0000– 0 1FFF 0 0000– 0 1FFF 0 0000– 0 1FFF 0 0000– 0 1FFF ACCESSIBLE WHEN DMOVLAY = 4 ACCESSIBLE WHEN DMOVLAY = 5 ACCESSIBLE WHEN PMOVLAY = 4 ACCESSIBLE WHEN PMOVLAY = 5 0 2000– 0 3FFF ACCESSIBLE WHEN DMOVLAY = 6 ACCESSIBLE WHEN DMOVLAY = 7 NOTE: IDMA AND BDMA HAVEN SEPARATE DMA CONTROL REGISTERS Figure 11. Direct Memory Access—PM and DM Memory Maps Bootstrap Loading (Booting) The ADSP-2189M has two mechanisms to allow automatic loading of the internal program memory after reset. The method for booting is controlled by the Mode A, B and C configuration bits. When the MODE pins specify BDMA booting, the ADSP-2189M initiates a BDMA boot sequence when reset is released. The BDMA interface is set up during reset to the following defaults when BDMA booting is specified: the BDIR, BMPAGE, BIAD and BEAD registers are set to 0, the BTYPE register is set to 0 to specify program memory 24-bit words, and the BWCOUNT register is set to 32. This causes 32 words of onchip program memory to be loaded from byte memory. These 32 words are used to set up the BDMA to load in the remaining program code. The BCR bit is also set to 1, which causes program execution to be held off until all 32 words are loaded into on-chip program memory. Execution then begins at address 0. The ADSP-2100 Family development software (Revision 5.02 and later) fully supports the BDMA booting feature and can generate byte memory space compatible boot code. The IDLE instruction can also be used to allow the processor to hold off execution while booting continues through the BDMA interface. For BDMA accesses while in Host Mode, the addresses to boot memory must be constructed externally to the ADSP-2189M. The only memory address bit provided by the processor is A0. IDMA Port Booting RESERVED SET TO 0 ID DMOVLAY ID PMOVLAY IDMA CONTROL (U = UNDEFINED AT RESET) 15 14 13 12 11 10 U U U U U 9 U 8 U 7 U 6 U 5 U 4 U 3 U 2 U 1 U 0 U DM(0 3FE0) IDMAA ADDRESS IDMAD DESTINATION MEMORY TYPE: 0 = PM 1 = DM The ADSP-2189M can also boot programs through its Internal DMA port. If Mode C = 1, Mode B = 0, and Mode A = 1, the ADSP-2189M boots from the IDMA port. IDMA feature can load as much on-chip memory as desired. Program execution is held off until on-chip program memory location 0 is written to. Figure 10. IDMA Control/OVLAY Registers REV. 0 –11– ADSP-2189M Bus Request and Bus Grant The ADSP-2189M can relinquish control of the data and address buses to an external device. When the external device requires access to memory, it asserts the bus request (BR) signal. If the ADSP-2189M is not performing an external memory access, it responds to the active BR input in the following processor cycle by: • Three-stating the data and address buses and the PMS, DMS, BMS, CMS, IOMS, RD, WR output drivers, • Asserting the bus grant (BG) signal, and • Halting program execution. If Go Mode is enabled, the ADSP-2189M will not halt program execution until it encounters an instruction that requires an external memory access. If the ADSP-2189M is performing an external memory access when the external device asserts the BR signal, it will not threestate the memory interfaces or assert the BG signal until the processor cycle after the access completes. The instruction does not need to be completed when the bus is granted. If a single instruction requires two external memory accesses, the bus will be granted between the two accesses. When the BR signal is released, the processor releases the BG signal, reenables the output drivers and continues program execution from the point at which it stopped. The bus request feature operates at all times, including when the processor is booting and when RESET is active. The BGH pin is asserted when the ADSP-2189M requires the external bus for a memory or BDMA access, but is stopped. The other device can release the bus by deasserting bus request. Once the bus is released, the ADSP-2189M deasserts BG and BGH and executes the external memory access. Flag I/O Pins • The algebraic syntax eliminates the need to remember cryptic assembler mnemonics. For example, a typical arithmetic add instruction, such as AR = AX0 + AY0, resembles a simple equation. • Every instruction assembles into a single, 24-bit word that can execute in a single instruction cycle. • The syntax is a superset ADSP-2100 Family assembly language and is completely source-and-object-code-compatible with other family members. Programs may need to be relocated to utilize on-chip memory and conform to the ADSP-2189M’s interrupt vector and reset vector map. • Sixteen condition codes are available. For conditional jump, call, return, or arithmetic instructions, the condition can be checked and the operation executed in the same instruction cycle. • Multifunction instructions allow parallel execution of an arithmetic instruction with up to two fetches or one write to processor memory space during a single instruction cycle. DESIGNING AN EZ-ICE-COMPATIBLE SYSTEM The ADSP-2189M has on-chip emulation support and an ICEPort, a special set of pins that interface to the EZ-ICE. These features allow in-circuit emulation without replacing the target system processor by using only a 14-pin connection from the target system to the EZ-ICE. Target systems must have a 14-pin connector to accept the EZ-ICE’s in-circuit probe, a 14-pin plug. Issuing the chip reset command during emulation causes the DSP to perform a full chip reset, including a reset of its memory mode. Therefore, it is vital that the mode pins are set correctly PRIOR to issuing a chip reset command from the emulator user interface. If you are using a passive method of maintaining mode information (as discussed in Setting Memory Modes), then it does not matter that the mode information is latched by an emulator reset. However, if using the RESET pin as a method of setting the value of the mode pins, the effects of an emulator reset must be taken into consideration. One method of ensuring that the values located on the mode pins are those desired is to construct a circuit like the one shown in Figure 12. This circuit forces the value located on the Mode A pin to logic high; regardless if it latched via the RESET or ERESET pin. ERESET RESET The ADSP-2189M has eight general purpose programmable input/output flag pins. They are controlled by two memory mapped registers. The PFTYPE register determines the direction, 1 = output and 0 = input. The PFDATA register is used to read and write the values on the pins. Data being read from a pin configured as an input is synchronized to the ADSP-2189M’s clock. Bits that are programmed as outputs will read the value being output. The PF pins default to input during reset. In addition to the programmable flags, the ADSP-2189M has five fixed-mode flags, FLAG_IN, FLAG_OUT, FL0, FL1 and FL2. FL0-FL2 are dedicated output flags. FLAG_IN and FLAG_OUT are available as an alternate configuration of SPORT1. Note: Pins PF0, PF1, PF2 and PF3 are also used for device configuration during reset. INSTRUCTION SET DESCRIPTION ADSP-2189M 1k MODE A/PFO PROGRAMMABLE I/O The ADSP-2189M assembly language instruction set has an algebraic syntax that was designed for ease of coding and readability. The assembly language, which takes full advantage of the processor’s unique architecture, offers the following benefits: Figure 12. Mode A Pin/EZ-ICE Circuit See the ADSP-2100 Family EZ-Tools data sheet for complete information on ICE products. –12– REV. 0 ADSP-2189M The ICE-Port interface consists of the following ADSP-2189M pins: EBR, EINT, EE, EBG, ECLK, ERESET, ELIN, EMS, and ELOUT. These ADSP-2189M pins must be connected only to the EZICE connector in the target system. These pins have no function except during emulation, and do not require pull-up or pulldown resistors. The traces for these signals between the ADSP2189M and the connector must be kept as short as possible, no longer than three inches. The following pins are also used by the EZ-ICE: BR, BG, RESET, and GND. The EZ-ICE uses the EE (emulator enable) signal to take control of the ADSP-2189M in the target system. This causes the processor to use its ERESET, EBR, and EBG pins instead of the RESET, BR, and BG pins. The BG output is three-stated. These signals do not need to be jumper-isolated in your system. The EZ-ICE connects to your target system via a ribbon cable and a 14-pin female plug. The female plug is plugged onto the 14-pin connector (a pin strip header) on the target board. Target Board Connector for EZ-ICE Probe Target Memory Interface For your target system to be compatible with the EZ-ICE emulator, it must comply with the memory interface guidelines listed below. PM, DM, BM, IOM, and CM Design your Program Memory (PM), Data Memory (DM), Byte Memory (BM), I/O Memory (IOM), and Composite Memory (CM) external interfaces to comply with worst case device timing requirements and switching characteristics as specified in this data sheet. The performance of the EZ-ICE may approach published worst case specification for some memory access timing requirements and switching characteristics. Note: If your target does not meet the worst case chip specification for memory access parameters, you may not be able to emulate your circuitry at the desired CLKIN frequency. Depending on the severity of the specification violation, you may have trouble manufacturing your system as DSP components statistically vary in switching characteristic and timing requirements within published limits. Restriction: All memory strobe signals on the ADSP-2189M (RD, WR, PMS, DMS, BMS, CMS, and IOMS) used in your target system must have 10 kΩ pull-up resistors connected when the EZ-ICE is being used. The pull-up resistors are necessary because there are no internal pull-ups to guarantee their state during prolonged three-state conditions resulting from typical EZ-ICE debugging sessions. These resistors may be removed at your option when the EZ-ICE is not being used. Target System Interface Signals The EZ-ICE connector (a standard pin strip header) is shown in Figure 13. You must add this connector to your target board design if you intend to use the EZ-ICE. Be sure to allow enough room in your system to fit the EZ-ICE probe onto the 14-pin connector. 1 GND 3 EBG 2 BG 4 BR 6 EINT 5 EBR 7 8 ELIN KEY (NO PIN) 9 ELOUT When the EZ-ICE board is installed, the performance on some system signals change. Design your system to be compatible with the following system interface signal changes introduced by the EZ-ICE board: • EZ-ICE emulation introduces an 8 ns propagation delay between your target circuitry and the DSP on the RESET signal. • EZ-ICE emulation introduces an 8 ns propagation delay between your target circuitry and the DSP on the BR signal. • EZ-ICE emulation ignores RESET and BR when singlestepping. • EZ-ICE emulation ignores RESET and BR when in Emulator Space (DSP halted). • EZ-ICE emulation ignores the state of target BR in certain modes. As a result, the target system may take control of the DSP’s external memory bus only if bus grant (BG) is asserted by the EZ-ICE board’s DSP. 10 ECLK 11 EE 12 EMS 13 RESET 14 ERESET TOP VIEW Figure 13. Target Board Connector for EZ-ICE The 14-pin, 2-row pin strip header is keyed at the Pin 7 location—you must remove Pin 7 from the header. The pins must be 0.025 inch square and at least 0.20 inch in length. Pin spacing should be 0.1 × 0.1 inches. The pin strip header must have at least 0.15 inch clearance on all sides to accept the EZ-ICE probe plug. Pin strip headers are available from vendors such as 3M, McKenzie, and Samtec. REV. 0 –13– ADSP-2189M–SPECIFICATIONS RECOMMENDED OPERATING CONDITIONS K Grade Parameter VDDINT VDDEXT VINPUT1 TAMB Min 2.37 2.37 VIL = –0.3 0 Max 2.63 3.6 VIH = 3.6 +70 Min 2.25 2.25 –0.03 –40 B Grade Max 2.75 3.6 3.6 +85 Unit V V V °C NOTES 1 The ADSP-2189M is 3.3 V tolerant (always accepts up to 3.6 Volt max V IH), but voltage compliance (on outputs, V OH) depends on the input V DDEXT; because V OH (max) ≈ VDDEXT (max). This applies to Bidirectional pins (D0–D23, RFS0, RFS1, SCLK0, SCLK1, TFS0, TFS1, A1–A13, PF0–PF7) and Input Only pins (CLKIN, RESET, BR, DR0, DR1, PWD). ELECTRICAL CHARACTERISTICS Parameter VIH, Hi-Level Input Voltage VIH, Hi-Level CLKIN Voltage VIL, Lo-Level Input Voltage1, 3 VOH, Hi-Level Output Voltage1, 4 , 5 VOL, Lo-Level Output Voltage1, 4, 5 IIH, Hi-Level Input Current3 IIL, Lo-Level Input Current3 IOZH, Three-State Leakage Current7 IOZL, Three-State Leakage Current7 IDD, Supply Current (Idle)9 IDD, Supply Current (Idle)9 IDD, Supply Current (Dynamic)10 IDD, Supply Current (Dynamic)10 IDD, Supply Current (Power-Down)12, 15 CI, Input Pin Capacitance3, 6, 13 CO, Output Pin Capacitance6, 7, 12, 14 1, 2 Test Conditions @ @ @ @ @ @ @ @ @ @ @ @ @ @ VDDINT = max VDDINT = max VDDINT = min VDDEXT = min, IOH = –0.5 mA VDDEXT = 3.0 V, IOH = –0.5 mA VDDEXT = min, IOH = –100 µA6 VDDEXT = min, IOL = 2 mA VDDINT = max, VIN = 3.6 V VDDINT = max, VIN = 0 V VDDINT = max, VIN = 3.6 V8 VDDINT = max, VIN = 0 V8 VDDINT = 2.5, tCK = 15 ns VDDINT = 2.5, tCK = 13.3 ns VDDINT = 2.5, tCK = 15 ns11, TAMB = +25°C @ VDDINT = 2.5, tCK = 13.3 ns11, TAMB = +25°C Lowest Power Mode @ VIN = 2.5 V, fIN = 1.0 MHz, TAMB = +25°C @ VIN = 2.5 V, fIN = 1.0 MHz, TAMB = +25°C Min 1.5 2.0 K/B Grades Typ Max Unit V V V V V V V µA µA µA µA mA mA mA mA µA 0.6 2.0 2.4 VDDEXT – 0.3 0.4 10 10 10 10 9 10 32 36 150 8 pF 8 pF NOTES 1 Bidirectional pins: D0–D23, RFS0, RFS1, SCLK0, SCLK1, TFS0, TFS1, A1–A13, PF0–PF7. 2 Input Only pins: RESET, BR, DR0, DR1, PWD. 3 Input Only pins: CLKIN, RESET , BR, DR0, DR1, PWD. 4 Output pins: BG, PMS, DMS , BMS, IOMS, CMS, RD, WR, PWDACK, A0, DT0, DT1, CLKOUT, FL2-0, BGH. 5 Although specified for TTL outputs, all ADSP-2189M outputs are CMOS-compatible and will drive to V DDEXT and GND, assuming no dc loads. 6 Guaranteed but not tested. 7 Three-statable pins: A0–A13, D0-D23, PMS, DMS, BMS, IOMS, CMS, RD, WR, DT0, DT1, SCLK0, SCLK1, TFS0, TFS1, RFS0, RFS1, PF0–PF7. 8 0 V on BR. 9 Idle refers to ADSP-2189M state of operation during execution of IDLE instruction. Deasserted pins are driven to either V DD or GND. 10 IDD measurement taken with all instructions executing from internal memory. 50% of the instructions are multifunction (types 1, 4, 5, 12, 13, 14), 30% are type 2 and type 6, and 20% are idle instructions. 11 VIN = 0 V and 3 V. For typical figures for supply currents, refer to Power Dissipation section. 12 See Chapter 9 of the ADSP-2100 Family User’s Manual , Third Edition for details. 13 Applies to LQFP package type. 14 Output pin capacitance is the capacitive load for any three-stated output pin. 15 VDDINT = 2.5 V. T = 25°C. Specifications subject to change without notice. –14– REV. 0 ADSP-2189M ABSOLUTE MAXIMUM RATINGS 1 Parameter Internal Supply Voltage (VDDINT) External Supply Voltage (VDDEXT) Input Voltage2 Output Voltage Swing3 Operating Temperature Range (Ambient) Storage Temperature Range Lead Temperature (5 sec) LQFP Value Min Max –0.3 V –0.3 V –0.5 V –0.5 V –40°C –65°C +3.0 V +4.6 V +4.6 V VDDEXT + 0.5 V +85°C +150°C +280°C NOTES 1 Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only; functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. 2 Applies to Bidirectional pins (D0–D23, RFS0, RFS1, SCLK0, SCLK1, TFS0, TFS1, A1–A13, PF0–PF7) and Input only pins (CLKIN, RESET, BR, DR0, DR1, PWD). 3 Applies to Output pins ( BG, PMS, DMS, BMS, IOMS, CMS, RD, WR, PWDACK, A0, DT0, DT1, CLKOUT, FL2-0, BGH). CAUTION ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. Although the ADSP-2189M features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality. WARNING! ESD SENSITIVE DEVICE TIMING PARAMETERS GENERAL NOTES MEMORY TIMING SPECIFICATIONS Use the exact timing information given. Do not attempt to derive parameters from the addition or subtraction of others. While addition or subtraction would yield meaningful results for an individual device, the values given in this data sheet reflect statistical variations and worst cases. Consequently, you cannot meaningfully add up parameters to derive longer times. TIMING NOTES The table below shows common memory device specifications and the corresponding ADSP-2189M timing parameters, for your convenience. Memory Device Specification Address Setup to Write Start Address Setup to Write End Address Hold Time Data Setup Time Timing Parameter Parameter Definition1 tASW tAW tWRA tDW A0–A13, xMS Setup before WR Low A0–A13, xMS Setup before WR Deasserted A0–A13, xMS Hold before WR Low Data Setup before WR High Data Hold after WR High RD Low to Data Valid A0–A13, xMS to Data Valid Switching characteristics specify how the processor changes its signals. You have no control over this timing—circuitry external to the processor must be designed for compatibility with these signal characteristics. Switching characteristics tell you what the processor will do in a given circumstance. You can also use switching characteristics to ensure that any timing requirement of a device connected to the processor (such as memory) is satisfied. Timing requirements apply to signals that are controlled by circuitry external to the processor, such as the data input for a read operation. Timing requirements guarantee that the processor operates correctly with other devices. Data Hold Time tDH OE to Data Valid tRDD Address Access Time tAA NOTE 1 xMS = PMS, DMS, BMS, CMS or IOMS. REV. 0 –15– ADSP-2189M FREQUENCY DEPENDENCY FOR TIMING SPECIFICATIONS Output Drive Currents tCK is defined as 0.5tCKI. The ADSP-2189M uses an input clock with a frequency equal to half the instruction rate: a 37.50 MHz input clock (which is equivalent to 28 ns) yields a 13 ns processor cycle (equivalent to 75 MHz). tCK values within the range of 0.5tCKI period should be substituted for all relevant timing parameters to obtain the specification value. Example: tCKH = 0.5tCK – 7 ns = 0.5 (15 ns) – 7 ns = 0.5 ns ENVIRONMENTAL CONDITIONS 1 Figure 14 shows typical I-V characteristics for the output drivers on the ADSP-2189M. The curves represent the current drive capability of the output drivers as a function of output voltage. 80 60 VDDEXT = 3.6V @ –40 C VOH SOURCE CURRENT – mA 40 20 VDDEXT = 3.3V @ +25 C VDDEXT = 2.5V @ +85 C 0 –20 –40 –60 –80 VDDEXT = 3.6V @ –40 C Rating Description Thermal Resistance (Case-to-Ambient) (Junction-to-Ambient) (Junction-to-Case) Symbol θCA θJA θJC Value 48°C/W 50°C/W 2°C/W VOL VDDEXT = 2.5V @ +85 C VDDEXT = 3.3V @ +25 C NOTE 1 Where the ambient temperature rating (T AMB) is: TAMB = TCASE – (PD × θCA) TCASE = Case temperature in °C PD = Power dissipation in W. 0 0.5 1.0 1.5 2.0 2.5 SOURCE VOLTAGE – V 3.0 3.5 4.0 Figure 14. Typical Output Driver Characteristics POWER DISSIPATION To determine total power dissipation in a specific application, the following equation should be applied for each output: C × VDD2 × f C = load capacitance, f = output switching frequency. Example: In an application where external data memory is used and no other outputs are active, power dissipation is calculated as follows: Assumptions: • External data memory is accessed every cycle with 50% of the address pins switching. • External data memory writes occur every other cycle with 50% of the data pins switching. • Each address and data pin has a 10 pF total load at the pin. • The application operates at VDDEXT = 3.3 V and tCK = 15 ns. Total Power Dissipation = PINT + (C × VDDEXT2 × f) PINT = internal power dissipation from Power vs. Frequency graph (Figure 15). (C × VDDEXT2 × f) is calculated for each output: Parameters Address, DMS Data Output, WR RD CLKOUT # of Pins C 8 9 1 1 10 pF 10 pF 10 pF 10 pF VDDEXT2 f 3.3 V 3.32 V 3.32 V 3.32 V 2 PD 33.3 MHz 29.0 mW 16.67 MHz 16.3 mW 16.67 MHz 1.8 mW 33.3 MHz 3.6 mW 50.7 mW Total power dissipation for this example is PINT + 50.7 mW. –16– REV. 0 ADSP-2189M 115 110 105 POWER (PINT) – mW 2189L POWER, INTERNAL1, 2, 3 110mW CAPACITIVE LOADING Figure 16 and Figure 17 show the capacitive loading characteristics of the ADSP-2189M. 30 T = +85 C VDD = 0V TO 2.0V RISE TIME (0.4V–2.4V) – ns 100 95 90 85 80 75 70 65 60 55 50 55 61mW 70mW 82mW VDD = 2.65V 95mW VDD = 2.5V 25 82mW VDD = 2.35V 20 15 60 65 1/tCK – MHz 70 75 80 10 POWER, IDLE1, 2, 4 30 28mW 28 POWER (PIDLE) – mW 5 0 VDD = 2.65V 24mW 24mW VDD = 2.5V 20mW 20mW VDD = 2.35V VALID OUTPUT DELAY OR HOLD – ns 16.5mW 0 50 100 26 24 22 20 18 16 14 40 55 60 65 1/tCK – MHz 70 75 80 150 CL – pF 200 250 300 Figure 16. Typical Output Rise Time vs. Load Capacitance, CL (at Maximum Ambient Operating Temperature) 18 16 14 12 10 8 6 4 2 NOMINAL –2 –4 –6 0 50 100 CL – pF IDLE (16) IDLE (128) 26 24 POWER (PIDLEn) – mW POWER, IDLE n MODES 2 24mW IDLE VDD = 2.65V 22 20mW 20 18 16 14 12 50 VDD = 2.5V 15mW VDD = 2.35V 15.7mW 70 75 80 16.4mW 150 200 250 14.25mW 55 60 Figure 17. Typical Output Valid Delay or Hold vs. Load Capacitance, CL (at Maximum Ambient Operating Temperature) 900 800 700 657 A TEMP = +85 C 772 A 65 1/tCK – MHz VALID FOR ALL TEMPERATURE GRADES. 1 POWER REFLECTS DEVICE OPERATING WITH NO OUTPUT LOADS. 2 TYPICAL POWER DISSIPATION AT 2.5V V DDINT AND +25 C EXCEPT WHERE SPECIFIED. 3I DD MEASUREMENT TAKEN WITH ALL INSTRUCTIONS EXECUTING FROM INTERNAL MEMORY. 50% OF THE INSTRUCTIONS ARE MULTIFUNCTION (TYPES 1, 4, 5, 12, 13, 14), 30% ARE TYPE 2 AND TYPE 6, AND 20% ARE IDLE INSTRUCTIONS. 4 IDLE REFERS TO ADSP-2189M STATE OF OPERATION DURING EXECUTION OF IDLE INSTRUCTION. DEASSERTED PINS ARE DRIVEN TO EITHER VDD OR GND. CURRENT – A 600 500 393 A 400 300 200 100 0 2.25 2.35 2.5 VDD INTERNAL – Volts 2.65 2.75 131 A TEMP = +25 C 161 A TEMP = +70 C 475 A Figure 15. Power vs. Frequency Figure 18. IDD Power-Down REV. 0 –17– ADSP-2189M TEST CONDITIONS Output Disable Time Output pins are considered to be disabled when they have stopped driving and started a transition from the measured output high or low voltage to a high impedance state. The output disable time (tDIS) is the difference of tMEASURED and tDECAY, as shown in the Output Enable/Disable diagram. The time is the interval from when a reference signal reaches a high or low voltage level to when the output voltages have changed by 0.5 V from the measured output high or low voltage. The decay time, tDECAY, is dependent on the capacitive load, CL, and the current load, iL, on the output pin. It can be approximated by the following equation: t DECAY = C L × 0.5 V iL driving. The output enable time (tENA) is the interval from when a reference signal reaches a high or low voltage level to when the output has reached a specified high or low trip point, as shown in the Output Enable/Disable diagram. If multiple pins (such as the data bus) are enabled, the measurement value is that of the first pin to start driving. REFERENCE SIGNAL tMEASURED tENA VOH (MEASURED) OUTPUT VOL (MEASURED) +0.5V VOL (MEASURED) tDIS VOH (MEASURED) – 0.5V 2.0V 1.0V VOH (MEASURED) tDECAY OUTPUT STOPS DRIVING OUTPUT STARTS DRIVING VOL (MEASURED) from which tDIS = tMEASURED – tDECAY is calculated. If multiple pins (such as the data bus) are disabled, the measurement value is that of the last pin to stop driving. INPUT HIGH-IMPEDANCE STATE. TEST CONDITIONS CAUSE THIS VOLTAGE LEVEL TO BE APPROXIMATELY 1.5V. Figure 20. Output Enable/Disable IOL 1.5V OUTPUT 2.0V 1.5V 0.8V TO OUTPUT PIN 50pF +1.5V Figure 19. Voltage Reference Levels for AC Measurements (Except Output Enable/Disable) Output Enable Time IOH Output pins are considered to be enabled when they have made a transition from a high impedance state to when they start Figure 21. Equivalent Device Loading for AC Measurements (Including All Fixtures) –18– REV. 0 ADSP-2189M TIMING PARAMETERS Parameter Clock Signals and Reset Timing Requirements: tCKI tCKIL tCKIH Switching Characteristics: tCKL tCKH tCKOH Control Signals Timing Requirements: tRSP tMS tMH Min Max Unit CLKIN Period CLKIN Width Low CLKIN Width High 26.6 13 13 80 ns ns ns CLKOUT Width Low CLKOUT Width High CLKIN High to CLKOUT High 0.5tCK – 2 0.5tCK – 2 0 13 ns ns ns RESET Width Low Mode Setup before RESET High Mode Hold after RESET High 5tCK1 2 5 ns ns ns NOTE 1 Applies after power-up sequence is complete. Internal phase lock loop requires no more than 2000 CLKIN cycles assuming stable CLKIN (not including crystal oscillator start-up time). tCKI tCKIH CLKIN tCKIL tCKOH tCKH CLKOUT tCKL PF(3:0)* tMS RESET tMH *PF3 IS MODE D, PF2 IS MODE C, PF0 IS MODE A Figure 22. Clock Signals REV. 0 –19– ADSP-2189M Parameter Interrupts and Flags Timing Requirements: tIFS tIFH Switching Characteristics: tFOH tFOD Min Max Unit IRQx, FI, or PFx Setup before CLKOUT Low1, 2, 3, 4 IRQx, FI, or PFx Hold after CLKOUT High1, 2, 3, 4 Flag Output Hold after CLKOUT Low5 Flag Output Delay from CLKOUT Low5 0.25tCK + 10 0.25tCK 0.5tCK – 5 0.5tCK + 4 ns ns ns ns NOTES 1 If IRQx and FI inputs meet tIFS and tIFH setup/hold requirements, they will be recognized during the current clock cycle; otherwise the signals will be recognized on the following cycle. (Refer to Interrupt Controller Operation in the Program Control chapter of the ADSP-2100 Family User’s Manual , Third Edition, for further information on interrupt servicing.) 2 Edge-sensitive interrupts require pulsewidths greater than 10 ns; level-sensitive interrupts must be held low until serviced. 3 IRQx = IRQ0, IRQ1, IRQ2, IRQL0, IRQL1, IRQLE. 4 PFx = PF0, PF1, PF2, PF3, PF4, PF5, PF6, PF7. 5 Flag Outputs = PFx, FL0, FL1, FL2, Flag_out4. tFOD CLKOUT tFOH FLAG OUTPUTS tIFH IRQx FI PFx tIFS Figure 23. Interrupts and Flags –20– REV. 0 ADSP-2189M Parameter Bus Request–Bus Grant Timing Requirements: tBH BR Hold after CLKOUT High1 BR Setup before CLKOUT Low1 tBS Switching Characteristics: tSD tSDB tSE tSEC tSDBH tSEH CLKOUT High to xMS, RD, WR Disable xMS, RD, WR Disable to BG Low BG High to xMS, RD, WR Enable xMS, RD, WR Enable to CLKOUT High xMS, RD, WR Disable to BGH Low2 BGH High to xMS, RD, WR Enable2 Min Max Unit 0.25tCK + 2 0.25tCK + 10 0.25tCK + 8 0 0 0.25tCK – 3 0 0 ns ns ns ns ns ns ns ns NOTES xMS = PMS, DMS , CMS, IOMS, BMS 1 BR is an asynchronous signal. If BR meets the setup/hold requirements, it will be recognized during the current clock cycle; otherwise the signal will be recognized on the following cycle. Refer to the ADSP-2100 Family User’s Manual , Third Edition, for BR/BG cycle relationships. 2 BGH is asserted when the bus is granted and the processor or BDMA requires control of the bus to continue. tBH CLKOUT BR tBS CLKOUT PMS, DMS BMS, RD WR BG tSD tSEC tSDB tSE BGH tSDBH tSEH Figure 24. Bus Request–Bus Grant REV. 0 –21– ADSP-2189M Parameter Memory Read Timing Requirements: tRDD tAA tRDH Switching Characteristics: tRP tCRD tASR tRDA tRWR Min Max Unit RD Low to Data Valid A0–A13, xMS to Data Valid Data Hold from RD High RD Pulsewidth CLKOUT High to RD Low A0–A13, xMS Setup before RD Low A0–A13, xMS Hold after RD Deasserted RD High to RD or WR Low 0.5tCK – 5 + w 0.75tCK – 6 + w 0 ns ns ns 0.5tCK – 3 + w 0.25tCK – 2 0.25tCK – 3 0.25tCK – 3 0.5tCK – 3 0.25tCK + 4 ns ns ns ns ns w = wait-states × tCK. xMS = PMS, DMS, CMS, IOMS, BMS. CLKOUT A0 – A13 DMS, PMS, BMS, IOMS, CMS tRDA RD tASR tCRD D tRP tRWR tAA WR tRDD tRDH Figure 25. Memory Read –22– REV. 0 ADSP-2189M Parameter Memory Write Switching Characteristics: tDW tDH tWP tWDE tASW tDDR tCWR tAW tWRA tWWR Min Max Unit Data Setup before WR High Data Hold after WR High WR Pulsewidth WR Low to Data Enabled A0–A13, xMS Setup before WR Low Data Disable before WR or RD Low CLKOUT High to WR Low A0–A13, xMS, Setup before WR Deasserted A0–A13, xMS Hold after WR Deasserted WR High to RD or WR Low 0.5tCK – 4 + w 0.25tCK – 1 0.5tCK – 3 + w 0 0.25tCK – 3 0.25tCK – 3 0.25tCK – 2 0.75tCK – 5 + w 0.25tCK – 1 0.5tCK – 3 0.25tCK + 4 ns ns ns ns ns ns ns ns ns ns w = wait-states × tCK. xMS = PMS, DMS, CMS, IOMS, BMS. CLKOUT A0–A13 DMS, PMS, BMS, CMS, IOMS tWRA WR tASW tAW tCWR D tWP tDH tWWR tDDR tDW tWDE RD Figure 26. Memory Write REV. 0 –23– ADSP-2189M Parameter Serial Ports Timing Requirements: tSCK tSCS tSCH tSCP Switching Characteristics: tCC tSCDE tSCDV tRH tRD tSCDH tTDE tTDV tSCDD tRDV Min Max Unit SCLK Period DR/TFS/RFS Setup before SCLK Low DR/TFS/RFS Hold after SCLK Low SCLKIN Width 26.67 4 7 12 ns ns ns ns CLKOUT High to SCLKOUT SCLK High to DT Enable SCLK High to DT Valid TFS/RFSOUT Hold after SCLK High TFS/RFSOUT Delay from SCLK High DT Hold after SCLK High TFS (Alt) to DT Enable TFS (Alt) to DT Valid SCLK High to DT Disable RFS (Multichannel, Frame Delay Zero) to DT Valid CLKOUT 0.25tCK 0 0 0.25tCK + 6 12 12 0 0 12 12 12 ns ns ns ns ns ns ns ns ns ns tCC tCC tSCP tSCS tSCH tSCK SCLK tSCP DR TFSIN RFSIN tRD tRH RFSOUT TFSOUT tSCDV tSCDE DT tSCDD tSCDH tTDE tTDV TFSOUT ALTERNATE FRAME MODE tRDV RFSOUT MULTICHANNEL MODE, FRAME DELAY 0 (MFD = 0) tTDE tTDV TFSIN ALTERNATE FRAME MODE RFSIN MULTICHANNEL MODE, FRAME DELAY 0 (MFD = 0) tRDV Figure 27. Serial Ports –24– REV. 0 ADSP-2189M Parameter IDMA Address Latch Timing Requirements: tIALP tIASU tIAH tIKA tIALS tIALD Min Max Unit Duration of Address Latch1, 2 IAD15–0 Address Setup before Address Latch End2 IAD15–0 Address Hold after Address Latch End2 IACK Low before Start of Address Latch2, 3 Start of Write or Read after Address Latch End2, 3 Address Latch Start after Address Latch End1, 2 10 5 3 0 3 2 ns ns ns ns ns ns NOTES 1 Start of Address Latch = IS Low and IAL High. 2 End of Address Latch = IS High or IAL Low. 3 Start of Write or Read = IS Low and IWR Low or IRD Low. IACK tIKA IAL tIALD tIALP tIALP IS IAD15–0 tIASU tIAH tIASU tIAH tIALS RD OR WR Figure 28. IDMA Address Latch REV. 0 –25– ADSP-2189M Parameter IDMA Write, Short Write Cycle Timing Requirements: IACK Low before Start of Write1 tIKW tIWP Duration of Write1, 2 tIDSU IAD15–0 Data Setup before End of Write2, 3, 4 IAD15–0 Data Hold after End of Write2, 3, 4 tIDH Switching Characteristics: tIKHW Start of Write to IACK High Min Max Unit 0 10 3 2 ns ns ns ns 10 ns NOTES 1 Start of Write = IS Low and IWR Low. 2 End of Write = IS High or IWR High. 3 If Write Pulse ends before IACK Low, use specifications t IDSU, tIDH. 4 If Write Pulse ends after IACK Low, use specifications t IKSU, tIKH. tIKW IACK tIKHW IS tIWP IWR tIDSU IAD 15–0 DATA tIDH Figure 29. IDMA Write, Short Write Cycle –26– REV. 0 ADSP-2189M Parameter IDMA Write, Long Write Cycle Timing Requirements: IACK Low before Start of Write1 tIKW tIKSU IAD15–0 Data Setup before End of Write2, 3, 4 tIKH IAD15–0 Data Hold after End of Write2, 3, 4 Switching Characteristics: tIKLW tIKHW Start of Write to IACK Low4 Start of Write to IACK High Min Max Unit 0 0.5tCK + 5 0 ns ns ns 1.5tCK 10 ns ns NOTES 1 Start of Write = IS Low and IWR Low. 2 If Write Pulse ends before IACK Low, use specifications t IDSU, tIDH. 3 If Write Pulse ends after IACK Low, use specifications t IKSU, tIKH. 4 This is the earliest time for IACK Low from Start of Write. For IDMA Write cycle relationships, please refer to the ADSP-2100 Family User’s Manual , Third Edition. tIKW IACK tIKHW tIKLW IS IWR tIKSU IAD15–0 DATA tIKH Figure 30. IDMA Write, Long Write Cycle REV. 0 –27– ADSP-2189M Parameter IDMA Read, Long Read Cycle Timing Requirements: tIKR IACK Low before Start of Read1 End of Read after IACK Low2 tIRK Switching Characteristics: tIKHR tIKDS tIKDH tIKDD tIRDE tIRDV tIRDH1 tIRDH2 IACK High after Start of Read1 IAD15–0 Data Setup before IACK Low IAD15–0 Data Hold after End of Read2 IAD15–0 Data Disabled after End of Read2 IAD15–0 Previous Data Enabled after Start of Read IAD15–0 Previous Data Valid after Start of Read IAD15–0 Previous Data Hold after Start of Read (DM/PM1)3 IAD15–0 Previous Data Hold after Start of Read (PM2)4 Min Max Unit 0 2 ns ns 10 0.5tCK – 2 0 10 0 11 2tCK – 3 tCK – 5 ns ns ns ns ns ns ns ns NOTES 1 Start of Read = IS Low and IRD Low. 2 End of Read = IS High or IRD High. 3 DM read or first half of PM read. 4 Second half of PM read. IACK tIKR IS tIKHR tIRK IRD tIRDE IAD15–0 PREVIOUS DATA tIKDS READ DATA tIKDH tIRDV tIRDH tIKDD Figure 31. IDMA Read, Long Read Cycle –28– REV. 0 ADSP-2189M Parameter IDMA Read, Short Read Cycle Timing Requirements: IACK Low before Start of Read1 tIKR tIRP Duration of Read Switching Characteristics: tIKHR tIKDH tIKDD tIRDE tIRDV IACK High after Start of Read1 IAD15–0 Data Hold after End of Read2 IAD15–0 Data Disabled after End of Read2 IAD15–0 Previous Data Enabled after Start of Read IAD15–0 Previous Data Valid after Start of Read Min Max Unit 0 10 ns ns 10 0 10 0 10 ns ns ns ns ns NOTES 1 Start of Read = IS Low and IRD Low. 2 End of Read = IS High or IRD High. IACK tIKR IS tIKHR tIRP IRD tIRDE IAD15–0 PREVIOUS DATA tIKDH tIRDV tIKDD Figure 32. IDMA Read, Short Read Cycle REV. 0 –29– ADSP-2189M 100-Lead LQFP Package Pinout 94 PF0 [MODE A] 93 PF1 [MODE B] 100 A3/IAD2 99 A2/IAD1 98 A1/IAD0 97 A0 96 PWDACK 95 BGH 89 PF2 [MODE C] 88 PF3 91 PWD 90 VDDEXT 92 GND 80 GND 79 D19 78 D18 77 D17 76 D16 75 D15 74 D14 73 D13 72 D12 71 GND 70 D11 69 D10 68 D9 67 VDDEXT 66 GND 65 D8 64 D7/IWR 63 D6/IRD 62 D5/IAL 61 D4/IS 60 GND 59 VDD INT 58 D3/IACK 57 D2/IAD15 56 D1/IAD14 55 D0/IAD13 54 BG 53 EBG 52 BR 51 EBR ELIN 49 ELOUT 48 EINT 50 A4/IAD3 A5/IAD4 GND A6/IAD5 A7/IAD6 A8/IAD7 A9/IAD8 A10/IAD9 A11/IAD10 1 2 3 4 5 6 7 8 9 PIN 1 IDENTIFIER A12/IAD11 10 A13/IAD12 11 GND 12 CLKIN 13 XTAL 14 VDDEXT 15 CLKOUT 16 GND 17 VDDINT 18 WR 19 RD 20 BMS 21 DMS 22 PMS 23 IOMS 24 CMS 25 DR0 34 SCLK0 35 VDDEXT 36 DT1 37 TFS1 38 RFS1 39 DR1 40 GND 41 SCLK1 42 RESET 44 IRQL0+PF5 27 IRQL1+PF6 29 IRQ2+PF7 30 DT0 31 IRQE+PF4 26 ERESET 43 EMS 45 EE 46 ECLK 47 TFS0 32 GND 28 RFS0 33 ADSP-2189M TOP VIEW (Not to Scale) 82 D21 81 D20 84 D23 83 D22 86 FL1 85 FL2 87 FL0 –30– REV. 0 ADSP-2189M The ADSP-2189M package pinout appears in the following table. Pin names in bold text replace the plain text named functions when Mode C = 1. A + sign separates two functions when either function can be active for either major I/O mode. Signals enclosed in brackets [ ] are state bits latched from the value of the pin at the deassertion of RESET. PIN CONFIGURATION LQFP Number 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 Pin Name A4/IAD3 A5/IAD4 GND A6/IAD5 A7/IAD6 A8/IAD7 A9/IAD8 A10/IAD9 A11/IAD10 A12/IAD11 A13/IAD12 GND CLKIN XTAL VDDEXT CLKOUT GND VDDINT WR RD BMS DMS PMS IOMS CMS LQFP Number 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 Pin Name IRQE + PF4 IRQL0 + PF5 GND IRQL1 + PF6 IRQ2 + PF7 DT0 TFS0 RFS0 DR0 SCLK0 VDDEXT DT1 TFS1 RFS1 DR1 GND SCLK1 ERESET RESET EMS EE ECLK ELOUT ELIN EINT LQFP Number 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 Pin Name EBR BR EBG BG D0/IAD13 D1/IAD14 D2/IAD15 D3/IACK VDDINT GND D4/IS D5/IAL D6/IRD D7/IWR D8 GND VDDEXT D9 D10 D11 GND D12 D13 D14 D15 LQFP Number 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 Pin Name D16 D17 D18 D19 GND D20 D21 D22 D23 FL2 FL1 FL0 PF3 [Mode D] PF2 [Mode C] VDDEXT PWD GND PF1 [Mode B] PF0 [Mode A] BGH PWDACK A0 A1/IAD0 A2/IAD1 A3/IAD2 REV. 0 –31– ADSP-2189M OUTLINE DIMENSIONS Dimensions shown in inches and (mm). 100-Lead Metric Thin Plastic Quad Flatpack (ST-100) C3605–2.5–7/99 76 75 51 50 0.638 (16.20) 0.630 (16.00) TYP SQ 0.622 (15.80) 0.553 (14.05) 0.551 (14.00) TYP SQ 0.549 (13.95) 0.063 (1.60) MAX 0.030 (0.75) 0.024 (0.60) TYP 12 0.020 (0.50) TYP SEATING PLANE 0.472 (12.00) BSC 100 1 TOP VIEW (PINS DOWN) 0.003 (0.08) MAX LEAD COPLANARITY 0 –7 6 ±4 25 26 0.007 (0.177) 0.005 (0.127) TYP 0.003 (0.077) 0.020 (0.50) BSC LEAD PITCH 0.011 (0.27) 0.009 (0.22) TYP 0.007 (0.17) LEAD WIDTH NOTE: THE ACTUAL POSITION OF EACH LEAD IS WITHIN (0.08) 0.0032 FROM ITS IDEAL POSITION WHEN MEASURED IN THE LATERAL DIRECTION. CENTER FIGURES ARE TYPICAL UNLESS OTHERWISE NOTED ORDERING GUIDE Part Number ADSP-2189MKST-300 ADSP-2189MBST-266 Ambient Temperature Range 0°C to +70°C –40°C to +85°C Instruction Rate 75 MHz 66 MHz Package Description* 100-Lead LQFP 100-Lead LQFP Package Option ST-100 ST-100 *In 1998, JEDEC reevaluated the specifications for the TQFP package designation, assigning it to packages 1.0 mm thick. Previously labelled TQFP packages (1.6 mm thick) are now designated as LQFP. –32– REV. 0 PRINTED IN U.S.A.