NUC972DF71Y

NUC970 ARM® ARM926EJ-S Based 32-bit Microprocessor NUC970 Series Datasheet Nuvoton is providing this document only for reference purposes of ARM926EJ-S based system design. Nuvoton assumes no responsibility for errors or omissions. All data and specifications are subject to change without notice. For additional information or questions, please contact: Nuvoton Technology Corporation. www.nuvoton.com Oct. 09 2018 Page 1 of 91 Rev 1.46 NUC970 SERIES DATASHEET The information described in this document is the exclusive intellectual property of Nuvoton Technology Corporation and shall not be reproduced without permission from Nuvoton. NUC970 Table of Contents List of Figures ........................................................................................... 6 1 GENERAL DESCRIPTION ................................................................... 7 2 FEATURES .......................................................................................... 8 1.1 NUC970 Series Features ...................................................................... 8 3 PARTS INFORMATION LIST AND PIN CONFIGURATION .............. 15 3.1 NUC970 Series Part Number Naming Guide ............................................... 15 3.2 NUC970 Series Part Selection Guide ........................................................ 16 3.3 Pin Configuration ................................................................................ 17 3.3.1 NUC972DFxxY Pin Diagram ....................................................................... 17 3.3.2 NUC975DKxxY Pin Diagram ....................................................................... 18 3.3.3 NUC976DKxxY Pin Diagram ....................................................................... 19 3.3.4 NUC977DKxxY Pin Diagram ....................................................................... 20 3.3.5 NUC978DKxxY Pin Diagram ....................................................................... 21 3.4 Pin Description .................................................................................. 22 4 BLOCK DIAGRAM.............................................................................. 42 4.1 NUC970 Series Block Diagram ............................................................... 42 5 FUNCTIONAL DESCRIPTION ........................................................... 43 5.1 ARM® ARM926EJ-S CPU Core ............................................................... 43 NUC970 SERIES DATASHEET 5.1.1 Overview .............................................................................................. 43 5.2 System Manager ................................................................................ 44 5.2.1 Overview .............................................................................................. 44 5.3 Clock Controller (CLK_CTL) ................................................................... 44 5.3.1 Overview .............................................................................................. 44 5.3.2 Features .............................................................................................. 44 5.4 Advanced Interrupt Controller (AIC) .......................................................... 44 5.4.1 Overview .............................................................................................. 44 5.4.2 Features .............................................................................................. 45 5.5 SDRAM Interface Controller (SDIC) .......................................................... 45 5.5.1 Overview .............................................................................................. 45 5.5.2 Features .............................................................................................. 46 5.6 MTP Controller (MTP) .......................................................................... 46 5.6.1 Overview .............................................................................................. 46 5.6.2 Features .............................................................................................. 46 Oct. 09 2018 Page 2 of 91 Rev 1.46 NUC970 5.7 External Bus Interface (EBI) ................................................................... 46 5.7.1 Overview .............................................................................................. 46 5.7.2 Features .............................................................................................. 46 5.8 General Purpose I/O (GPIO) .................................................................. 46 5.8.1 Overview .............................................................................................. 47 5.8.2 Features .............................................................................................. 47 5.9 General DMA Controller (GDMA) ............................................................. 47 5.9.1 Overview .............................................................................................. 47 5.9.2 Features .............................................................................................. 47 5.10 Timer Controller (TMR) ......................................................................... 47 5.10.1 Overview .............................................................................................. 48 5.10.2 Features .............................................................................................. 48 5.11 Enhance Timer Controller (ETMR) ........................................................... 48 5.11.1 Overview .............................................................................................. 48 5.11.2 Features .............................................................................................. 48 5.12 Pulse Width Modulation (PWM) ............................................................... 48 5.12.1 Overview .............................................................................................. 49 5.12.2 Features .............................................................................................. 49 5.13 Watchdog Timer (WDT) ........................................................................ 49 5.13.1 Overview .............................................................................................. 49 5.14 Windowed Watchdog Timer (WWDT) ........................................................ 50 5.14.1 Overview .............................................................................................. 50 5.14.2 Features .............................................................................................. 50 5.15 Real Time Clock (RTC) ........................................................................ 51 5.15.1 Overview .............................................................................................. 51 5.15.2 Features .............................................................................................. 51 5.16 UART Interface Controller (UART) ........................................................... 52 5.16.1 Overview .............................................................................................. 52 5.16.2 Features .............................................................................................. 53 5.17 Smart Card Host Interface (SC) ............................................................... 53 5.17.1 Overview .............................................................................................. 53 5.17.2 Features .............................................................................................. 53 5.18 I2C Synchronous Serial Interface Controller (I2C) .......................................... 54 5.18.1 Overview .............................................................................................. 54 Oct. 09 2018 Page 3 of 91 Rev 1.46 NUC970 SERIES DATASHEET 5.13.2 Features .............................................................................................. 49 NUC970 5.18.2 Features .............................................................................................. 54 5.19 SPI Interface Controller (SPI) ................................................................. 55 5.19.1 Overview .............................................................................................. 55 5.19.2 Features .............................................................................................. 55 5.20 I2S Controller (I2S) .............................................................................. 55 5.20.1 Overview .............................................................................................. 55 5.20.2 Features .............................................................................................. 55 5.21 Ethernet MAC Controller (EMAC) ............................................................ 56 5.21.1 Overview .............................................................................................. 56 5.21.2 Features .............................................................................................. 56 5.22 USB 2.0 Device Controller (USBD) ........................................................... 56 5.22.1 Overview .............................................................................................. 56 5.22.2 Features .............................................................................................. 57 5.23 USB Host Controller (USBH) .................................................................. 57 5.23.1 Overview .............................................................................................. 57 5.23.2 Features .............................................................................................. 57 5.24 Controller Area Network (CAN) ............................................................... 57 5.24.1 Overview .............................................................................................. 57 5.24.2 Features .............................................................................................. 58 5.25 Flash Memory Interface (FMI) ................................................................. 58 NUC970 SERIES DATASHEET 5.25.1 Overview .............................................................................................. 58 5.25.2 Features: .............................................................................................. 58 5.26 Secure Digital Host Controller (SDH) ........................................................ 59 5.26.1 Overview .............................................................................................. 59 5.26.2 Features .............................................................................................. 59 5.27 Cryptographic Accelerator (CRYPTO) ....................................................... 60 5.27.1 Overview .............................................................................................. 60 5.27.2 Features .............................................................................................. 60 5.28 2D Graphic Engine (GE2D) .................................................................... 61 5.28.1 Overview .............................................................................................. 61 5.28.2 Features .............................................................................................. 61 5.29 JPEG Codec (JPEG) ........................................................................... 62 5.29.1 Overview .............................................................................................. 62 5.29.2 Features .............................................................................................. 62 5.30 LCD Display Interface Controller (LCM) ..................................................... 63 Oct. 09 2018 Page 4 of 91 Rev 1.46 NUC970 5.30.1 Overview .............................................................................................. 63 5.30.2 Features .............................................................................................. 63 5.31 Capture Sensor Interface Controller (CAP) ................................................. 63 5.31.1 Overview .............................................................................................. 64 5.31.2 Feature ................................................................................................ 64 5.32 Analog to Digital Converter (ADC) ............................................................ 64 5.32.1 Overview .............................................................................................. 64 5.32.2 Features .............................................................................................. 64 6 ELECTRICAL CHARACTERISTICS .................................................. 66 6.1 Absolute Maximum Ratings ................................................................... 66 6.2 DC Electrical Characteristics .................................................................. 67 6.2.1 NUC970 Series DC Electrical Characteristics ................................................... 67 6.3 AC Electrical Characteristics .................................................................. 70 6.3.1 External 4~24 MHz High Speed Oscillator ....................................................... 70 6.3.2 External 4~24 MHz High Speed Crystal .......................................................... 71 6.3.3 External 32.768 kHz Low Speed Crystal ......................................................... 72 6.3.4 EBI Timing ............................................................................................ 73 6.3.5 I2C Interface Timing ................................................................................. 74 6.3.6 SPI Interface Timing................................................................................. 75 6.3.7 I2S Interface Timing ................................................................................. 76 6.3.9 NAND Interface Timing ............................................................................. 79 6.3.10 SD Interface Timing ................................................................................. 80 6.3.11 LCD Display Interface Timing ...................................................................... 82 6.3.12 Capture Sensor Interface Timing .................................................................. 83 6.4 Analog Characteristics ......................................................................... 84 6.4.1 12-bit SARADC ...................................................................................... 84 6.4.2 Low Voltage Detection (LVD) and Low Voltage Reset (LVR) ................................. 85 6.4.3 3.3V Power-On Reset (POR33) ................................................................... 86 6.4.4 1.2V Power-On Reset (POR12) ................................................................... 86 6.4.5 USB 2.0 PHY ......................................................................................... 86 7 PACKAGE DIMENSIONS .................................................................. 88 7.1 216L LQFP (24x24x1.4mm footprint 2.0mm) ............................................... 88 7.2 128L LQFP (14x14x1.4mm footprint 2.0mm) ............................................... 89 8 REVISION HISTORY ......................................................................... 90 Oct. 09 2018 Page 5 of 91 Rev 1.46 NUC970 SERIES DATASHEET 6.3.8 Ethernet Interface Timing........................................................................... 77 NUC970 List of Figures Figure 3-1 NUC970 Series Part Number Naming Guide ............................................................... 15 Figure 3.3-1 NUC972DFxxY LQFP 216-pin Pin Diagram .............................................................. 17 Figure 3.3-2 NUC975DKxxY LQFP 128-pin Pin Diagram ............................................................. 18 Figure 3.3-3 NUC976DKxxY LQFP 128-pin Pin Diagram ............................................................. 19 Figure 3.3-4 NUC977DKxxY LQFP 128-pin Pin Diagram ............................................................. 20 Figure 3.3-5 NUC978DKxxY LQFP 128-pin Pin Diagram ............................................................. 21 Figure 66.3-1 External 4~24 MHz High Speed Oscillator Timing Diagram ................................... 70 Figure 6.3-2 Typical HXT Crystal Application Circuit ..................................................................... 71 Figure 6.3-3 Typical LXT Crystal Application Circuit...................................................................... 72 Figure 6.3-4 External Bus Interface Timing Diagram ..................................................................... 73 Figure 6.3-5 I2C Interface Timing Diagram .................................................................................... 74 Figure 6.3-6 SPI Interface Timing Diagram ................................................................................... 75 Figure 6.3-7 I2S Interface Timing Diagram..................................................................................... 76 Figure 6.3-8 RMII Interface Timing Diagram .................................................................................. 77 Figure 6.3-9 Ethernet PHY Management Interface Timing Diagram ............................................. 78 Figure 6.3-10 NAND Interface Timing Diagram ............................................................................. 79 Figure 6.3-11 SD Interface Default Mode Timing Diagram ............................................................ 80 Figure 6.3-12 SD Interface High-Speed Mode Timing Diagram .................................................... 81 Figure 6.3-13 LCD Display Interface SYNC Type Timing Diagram ............................................... 82 Figure 6.3-14 Capture Sensor Interface Timing Diagram .............................................................. 83 NUC970 SERIES DATASHEET Oct. 09 2018 Page 6 of 91 Rev 1.46 NUC970 1 GENERAL DESCRIPTION The NUC970 series targeted for general purpose 32-bit microcontroller embeds an outstanding CPU core ARM926EJ-S, a RISC processor designed by Advanced RISC Machines Ltd., runs up to 300 MHz, with 16 KB I-cache, 16 KB D-cache and MMU, 56KB embedded SRAM and 16 KB IBR (Internal Boot ROM) for booting from USB, NAND and SPI FLASH. The NUC970 series integrates two 10/100 Mb Ethernet MAC controllers, USB 2.0 HS HOST/Device controller with HS transceiver embedded, TFT type LCD controller, CMOS sensor I/F controller, 2D graphics engine, DES/3DES/AES crypto engine, I2S I/F controller, SD/MMC/NAND FLASH controller, GDMA and 8 channels 12-bit ADC controller with resistance touch screen functionality. It also integrates UART, SPI/MICROWIRE, I2C, CAN, LIN, PWM, Timer, WDT/Windowed-WDT, GPIO, Keypad, Smart Card I/F, 32.768 KHz XTL and RTC (Real Time Clock). In addition, the NUC970 series integrates a DRAM I/F, that runs up to 150MHz with supporting DDR or DDR2 type SDRAM, and an External Bus Interface (EBI) that supports SRAM and external device with DMA request and ack. NUC970 SERIES DATASHEET Oct. 09 2018 Page 7 of 91 Rev 1.46 NUC970 2 FEATURES 1.1 NUC970 Series Features Core – ARM® ARM926EJ-S™ processor core runs up to 300 MHz – Support 16 KB instruction cache and 16 KB data cache – Support MMU – Support JTAG Debug interface External Bus Interface (EBI) – Support SRAM and external I/O devices – Support 8/16-bit data bus width – Support up to five chip selects for SRAM and external I/O devices – Support programmable access cycle – Support four 32-bit write buffers  DDR SDRAM Controller – Support LPDDR and DDR2 SDRAM – Clock speed up to 150 MHz – Support 16-bit data bus width – Memory size depended on embedded SDRAM configuration by different part number.  Embedded SRAM and ROM – Support 56K bytes embedded SRAM – Support 16K bytes Internal Boot ROM (IBR) – Support up to four booting modes – Boot from USB – Boot from eMMC – Boot from NAND Flash – Boot from SPI Flash  Clock Control NUC970 SERIES DATASHEET – – –  Support two PLLs, up to 500 MHz, for high performance system operation External 12 MHz high speed crystal input for precise timing operation External 32.768 kHz low speed crystal input for RTC function and low speed clock source Ethernet MAC Controller – – – – – – – – Support up to 2 Ethernet MAC controllers Support IEEE Std. 802.3 CSMA/CD protocol Support packet time stamping for IEEE Std. 1588 protocol Support 10 and 100 Mbps operations Support Half- and Full-duplex operations Support RMII interface to Ethernet physical layer PHY Support Ethernet physical layer PHY management through MDC and MDIO interface Support flow control in Full-duplex mode to receive, recognize and transmit PAUSE frame – Support CAM-like function to recognize 48-bit Ethernet MAC address – Support Wake-On-LAN by detecting Magic Packet – Support 256 bytes transmit FIFO and 256 bytes receive FIFO – Support DMA function – Support internal loop back mode for diagnostic  USB 2.0 Controller – – Oct. 09 2018 Support USB Revision 2.0 specification Support one set of USB 2.0 High-Speed (HS) Device/Host with embedded transceiver Page 8 of 91 Rev 1.46 NUC970 – – – Support one set of USB 2.0 High-Speed (HS) Host with embedded transceiver Support Control, Bulk, Interrupt, Isochronous and Split transfers Support USB host function compliant to Enhanced Host Controller Interface (EHCI) 1.0 specification to connect with USB 2.0 High-Speed (HS) device. – Support USB host function compliant to Open Host Controller Interface (OHCI) 1.0 specification to connect with USB 1.1 Full-Speed (FS) and Low-Speed (LS) devices – Support USB High-Speed (HS) and Full-Speed (FS) device function – Support USB device function with 1 endpoint for Control IN/OUT transfers and 12 programmable endpoints for Bulk, Interrupt and Isochronous IN/OUT transfers – Support suspend, resume and remote wake-up capability – Support DMA function – Support 2048 Bytes internal SRAM for USB host function and 4096 Bytes internal SRAM for USB device function  Flash Memory Interface – – – – – Support NAND flash interface Support 8-bit data bus width Support SLC and MLC type NAND flash device Support 512 B, 2 KB, 4 KB and 8 KB page size NAND flash device Support ECC4, ECC8, ECC12, ECC15 and ECC24 BCH algorithm for ECC code generation, error detection and error correction. – Support eMMC flash interface – Support DMA function to accelerate the data transfer between system memory and NAND and eMMC flash.  I2S Controller Support I2S interface  Support both mono and stereo  Support both record and playback  Support 8-bit, 16-bit 20-bit and 24-bit data precision  Support master and slave mode – Support PCM interface  Support 2 slots mode to connect 2 device  Support 8-bit, 16-bit 20-bit and 24-bit data precision  Support master mode – Support four 8x24 (8 24-bit) buffer for left/right channel record and left/right playback – Support DMA function to accelerate the data transfer between system memory and internal buffer – Support 2 buffer address for left/right channel and 2 slots data transfer  LCD Display Controller – Support 8/9/16/18/24-bit data with to connect with 80/68 series MPU type LCD module Support resolution up to 1024x768 Support data format conversion from RGB444, RGB565, RGB666, RGB888, YUV422 and YUV444 to RGB444, RGB565, RGB666, RGB888, YUV422 and YUV444 for display output – Support CCIR-656 (with VSYNC, HSYNC and data enable sync signal) 8/16-bit YUV data output to connect with external TV encoder – Support 8/16 bpp OSD data with video overlay function to facilitate the diverse graphic UI – Support linear 1X to 8X image scaling up function – Support Picture-In-Picture display function – Support hardware cursor  Capture (CMOS Sensor Interface) – – Oct. 09 2018 Support CCIR601 & CCIR656 interfaces to connect with CMOS image sensor Support resolution up to 3M pixels Page 9 of 91 Rev 1.46 NUC970 SERIES DATASHEET – – – NUC970 – – Support YUV422 and RGB565 color format for data output by CMOS image sensor Support YUV422, RGB565, RGB555 and Y-only color format for data storing to system memory – Support planar and packet data format for data storing to system memory – Support image cropping and the cropping window is up to 4096x2048 – Support image scaling-down: – Support vertical and horizontal scaling-down for preview mode – Support N/M scaling factor where N is equal to or less than M – Support 2 pairs of configurable 16-bit N and 16-bit M – Support to combine two interlace-fields to a single frame for data output by TVdecoder. – Support 3 color processing effects – Negative picture – Sepia picture – Posterization  2D Graphic Engine – – – – – – – – – – – – NUC970 SERIES DATASHEET Support 2D Bit Block Transfer (BitBLT) functions defined in Microsoft GDI Support Host BLT Support Pattern BLT Support Color/Font Expanding BLT Support Transparent BLT Support Tile BLT Support Block Move BLT Support Copy File BLT Support Color/Font Expansion Support Rectangle Fill Support RGB332/RGB565/RGB888 data format. Support fore/background colors and all Microsoft 256 ternary raster-operation codes (ROP) – Support both inside and outside clipping function – Support alpha-blending for source/destination picture overlaying – Support fast Bresenham line drawing algorithm to draw solid/textured line – Support rectangular border and frame drawing – Support picture re-sizing – Support down-scaling from 1/255 to 254/255 – Support up-scaling from 1 to 1.996 (1+254/255) – Support object rotation with different degree – Support L45 (45 degree left rotation) and L90 (90 degree left rotation) – Support R45 (45 degree right rotation) and R90 (90 degree right rotation) – Support M180 (mirror/flop) – Support F180 (up-side-down (flip) and X180 (180 degree rotation)  JPEG Codec – – – – – – – – – – Oct. 09 2018 Support Baseline Sequential mode JPEG codec function compliant with ISO/IEC 10918-1 international JPEG standard Planar Format Support to encode interleaved YCbCr 4:2:2/4:2:0 and gray-level (Y only) format image Support to decode interleaved YCbCr 4:4:4/4:2:2/4:2:0/4:1:1 and gray-level (Y only) format image Support to decode YCbCr 4:2:2 transpose format Support arbitrary width and height image encode and decode Support three programmable quantization-tables Support standard default Huffman-table and programmable Huffman-table for decode Support arbitrarily 1X~8X image up-scaling function for encode mode Support down-scaling function for encode and decode modes Page 10 of 91 Rev 1.46 NUC970 – – – – – Support specified window decode mode Support quantization-table adjustment for bit-rate and quality control in encode mode Support rotate function in encode mode Packet Format Support to encode interleaved YUYV format input image, output bit stream 4:2:2 and 4:2:0 format – Support to decode interleaved YCbCr 4:4:4/4:2:2/4:2:0 format image – Support decoded output image RGB555, RGB565 and RGB888 formats. – The encoded JPEG bit-stream format is fully compatible with JFIF and EXIF standards – Support arbitrary width and height image encode and decode – Support three programmable quantization-tables – Support standard default Huffman-table and programmable Huffman-table for decode – Support arbitrarily 1X~8X image up-scaling function for encode mode – Support down-scaling function 1X~ 16X for Y422 and Y420, 1X~ 8X for Y444 for decode mode – Support specified window decode mode – Support quantization-table adjustment for bit-rate and quality control in encode mode  Crypto Engine PRNG Support 64-bit, 128-bit, 192-bit and 256-bit key generation DES Support FIPS 46-3 Support both encryption and decryption Support ECB, CBC, CFB, OFB and CTR modes 3DES Support FIPS NIST 800-67 Implements according to the X9.52 standard Support 112-bit and 168-bit key Support both encryption and decryption Support ECB, CBC, CFB, OFB and CTR modes AES Support FIPS NIST 197 Support SP800-38A & addendum Support 128-bit, 192-bit and 256-bit key Support both encryption and decryption Support ECB, CBC, CFB, OFB , CTR, CBC-CS1, CBC-CS2 and CBC-CS3 modes Support Key Expander SHA/HMAC Support FIPS NIST 180, 180-1, 180-2 Support SHA-160, SHA-224, SHA-256, SHA-384, SHA-512 and corresponding HMAC algorithm – Support 128-bit MTP key  GDMA (General DMA) – Support 2 channels GDMA for memory-to-memory data transfer without CPU intervention – Support increment and decrement for source and destination address calculation – Support 8-bit, 16-bit and 32-bit width data transfer – Support four 8-bit/16-bit/32-bit burst transfer  UART – – – Oct. 09 2018 Support up to 11 UART controllers Support 1 UART (UART 1) port with full model function (TXD, RXD, CTS, RTS, CDn, RIn, DTR and DSR) and 64-byte FIFO Support 5 UART (UART 2/4/6/8/10) ports with flow control (TXD, RXD, CTS and RTS) and 64-byte FIFO Page 11 of 91 Rev 1.46 NUC970 SERIES DATASHEET – – – – – – – – – – – – – – – – – – – – – – NUC970 – Support 5 TXD/RXD only UART ports (UART 0/3/5/7/9) with 16-byte FIFO for standard device – Support IrDA (SIR) and LIN function – Support RS-485 9-bit mode and direction control – Support programmable baud-rate generator up to 1/16 system clock  C-CAN – Supports CAN protocol version 2.0 part A and B – Bit rates up to 1M bit/s – 32 Message Objects – Each Message Object has its own identifier mask – Programmable FIFO mode (concatenation of Message Object) – Maskable interrupt – Disabled Automatic Re-transmission mode for Time Triggered CAN applications – Support power down wake-up function  Smart Card Host (SC) – – – – – – – Compliant to ISO-7816-3 T=0, T=1 Supports up to two ISO-7816-3 ports Separate receive / transmit 4 bytes entry FIFO for data payloads Programmable transmission clock frequency Programmable receiver buffer trigger level Programmable guard time selection (11 ETU ~ 266 ETU) One 24-bit and two 8-bit time-out counters for Answer to Request (ATR) and waiting times processing – Supports auto inverse convention function – Supports transmitter and receiver error retry and error limit function – Supports hardware activation sequence process – Supports hardware warm reset sequence process – Supports hardware deactivation sequence process – Supports hardware auto deactivation sequence when detecting the card removal  Timer NUC970 SERIES DATASHEET – Support 5 sets of 32-bit timers with 24-bit up-timer and one 8-bit pre-scale counter – Independent clock source for each timer – Support one-shot, periodic, toggle and continuous operation modes  Enhanced Timer – Support 4 sets of 32-bit timers with 24-bit up-timer and one 8-bit pre-scale counter – Independent clock source for each timer – Support one-shot, periodic, toggle and continuous operation modes – Supports external pin capture for interval measurement – Supports external pin capture for timer counter reset  Watchdog Timer – Multiple clock sources – 8 selectable time out period from 1.333us ~ 14.316sec (depends on clock source) – WDT can wake-up from power down or idle mode – Interrupt or reset selectable on watchdog timer time-out  Windowed-Watchdog Timer – 6-bit down counter with 11-bit pre-scale for wide range window selected – Interrupt on windowed-watchdog timer time-out – Reset on windowed-watchdog timer time out or reload in an unexpected time window  Real Time Clock (RTC) – – Oct. 09 2018 Supports software compensation by setting frequency compensate register (FCR) Supports RTC counter (second, minute, hour) and calendar counter (day, month, year) Page 12 of 91 Rev 1.46 NUC970 – – – – Supports Alarm registers (second, minute, hour, day, month, year) Selectable 12-hour or 24-hour mode Automatic leap year recognition Supports periodic time tick interrupt with 8 period options 1/128, 1/64, 1/32, 1/16, 1/8, 1/4, 1/2 and 1 second – Supports battery power pin (VBAT) – Supports wake-up function  PWM – –  Built-in up to two 16-bit PWM generators provide four PWM outputs Each PWM generator equipped with one clock source selector, one clock divider, one 8-bit pre-scale, two 16-bit counters, and one Dead-Zone generator SPI – – – – – – – –  I2C Built-in up to two sets of SPI controller Support SPI master mode Support single/dual/quad bit data bus width Full duplex synchronous serial data transfer Variable length of transfer data from 8 to 32 bits MSB or LSB first data transfer Support burst mode operation that transmission and reception can be executed up to four times in a transfer Support 2 slave/device select lines Up to two sets of I2C device Support master mode Bidirectional data transfer between masters and slaves Multi-master bus (no central master) Arbitration between simultaneously transmitting masters without corruption of serial data on the bus – Serial clock synchronization allows devices with different bit rates to communicate via one serial bus – Serial clock synchronization can be used as a handshake mechanism to suspend and resume serial transfer – Programmable clocks allow versatile rate control – Support software mode to generate I2C signaling  Advanced Interrupt Controller – – – – – Support 58 interrupt sources, including 8 external interrupt sources Support programmable normal or fast interrupt mode (IRQ, FIQ) Support programmable edge-triggered or level-sensitive for 8 external interrupt sources – Support programmable low-active or high-active for 8 external interrupt sources – Support encoded priority methodology to allow for interrupt daisy-chaining – Support lower priority interrupt automatically mask out for nested interrupt – Support to clear interrupt flag automatically if interrupt source is programmed as edgetriggered  GPIO – TTL/Schmitt trigger input selectable – I/O pin can be configured as interrupt source with edge/level setting – Support pull-up and pull-down control  ADC – – Oct. 09 2018 12-bit SAR ADC with 800K/160K SPS Up to 8-ch single-end input Page 13 of 91 Rev 1.46 NUC970 SERIES DATASHEET – – – NUC970 – Support up to 800K SPS in channel 1 and up to 160K SPS in others channels. – Support 4-wire or 5-wire resistance touch screen interface – Support touch pressure measurement for 4-wire touch screen application – Support pen down detection – Support battery measurement – Support keypad scan  MTP – Support 256-bit programmable memory for key of Crypto functionality – Support up to 15 times of programming and erase.  Low Voltage Detect (LVD) and Low Voltage Reset (LVR) – Support two, 2.6V and 2.8V, voltage detection levels – Interrupt when low voltage detected – Reset when low voltage detected – Low voltage reset threshold voltage levels: 2.4 V  Power Management – Advanced power management including Power Down, Deep Standby, CPU Standby and Normal Operating modes – Normal Operating mode  CPU run normally and all clocks on, the current consumption of CORE_VDD is around 185 mA (at CPU/DRAM clock is 300/150 MHz CPU). – CPU Standby mode  CPU clock stop, and all other clocks on. – Deep Standby mode  All clocks stop, except LXT, with SRAM retention, and the current consumption of CORE_VDD is typicaly 3 mA – Power Down mode  All powers are off except RTC_VDD (3.3V) and the current consumption of RTC_VDD is typicaly 7uA with RTC functionality on.  Operating Voltage NUC970 SERIES DATASHEET – 1.2V for core logic operating – 1.8V for DDR or DDR2 SDRAM I/O operating – 3.3V for normal I/O operating  Operating Temperature: -40℃~85℃  Packages: – – – Oct. 09 2018 All Green package (RoHS) LQFP 216-pin LQFP 128-pin Page 14 of 91 Rev 1.46 NUC970 3 PARTS INFORMATION LIST AND PIN CONFIGURATION 3.1 NUC970 Series Part Number Naming Guide NUC970 SERIES DATASHEET Figure 3-1 NUC970 Series Part Number Naming Guide Oct. 09 2018 Page 15 of 91 Rev 1.46 NUC970 3.2 NUC970 Series Part Selection Guide NUC970 Series √ √ √ √ √ √ √ √ √ √ 5 5 5 5 5 5 5 5 5 5 5 5 √ √ √ √ √ √ √ √ √ √ √ √ Package Operating Temp. Range (°C ) 2 2 2 2 2 2 2 2 2 2 2 2 I²S/AC97 2 2 1 1 1 - CMOS Interface 11 11 11 10 10 6 6 6 8 8 8 9 SPI 146 146 146 87 87 80 80 80 87 87 87 86 ISO-7816-3 √ √ √ √ √ √ √ √ √ I²C 1 1 1 1 1 1 1 1 1 1 1 1 UART 2 2 2 2 2 2 2 2 2 2 2 2 CAN BUS 2 2 2 1 1 1 1 1 1 1 1 1 GPIO (Max) 2 2 2 2 2 2 2 2 2 2 2 2 Touch Screen Controller √ √ √ √ √ √ √ √ √ √ √ √ USB 2.0 HS Host 128 64 64 64 16 64 64 16 64 64 16 64 USB 2.0 HS Device √ √ √ √ √ √ √ √ √ √ √ √ Ethernet 10/100 MAC 16 16 16 16 16 16 16 16 16 16 16 16 eMMC I/F 16 16 16 16 16 16 16 16 16 16 16 16 SD / SDIO 12-bit 5-ch √ 86 9 - 2 2 2 √ 1 LQFP128 -40 to +85 Stack DDR Size (MB) 4 Security against piracy NUC978DK41Y 300 16 16 √ 16 56 √ 24 √ 2 1 2 1 √ 16 √ 5 √ √ 300 300 300 300 300 300 300 300 300 300 300 300 I Cache (KB) 12-bit 8-ch 12-bit 8-ch 12-bit 8-ch 12-bit 4-ch 12-bit 4-ch 12-bit 4-ch 12-bit 4-ch 12-bit 4-ch 12-bit 5-ch NUC972DF71YC NUC972DF61YC NUC972DF61Y NUC975DK61Y NUC975DK41Y NUC976DK61YC NUC976DK61Y NUC976DK41Y NUC977DK61YC NUC977DK61Y NUC977DK41Y NUC978DK61Y D Cache (KB) 4 4 4 2 2 4 4 4 4 4 4 4 Max Speed (MHz) ADC 24 24 24 16 16 16 16 16 16 16 PWM Timer (32-bit) Watchdog Timer √ √ √ √ √ √ √ √ √ √ Window Watchdog Timer Real-Time Clock (RTC) 24 24 24 24 24 24 24 24 24 2D Graphics NAND Flash, No. of ECC bits √ √ √ √ √ √ √ √ √ √ √ √ Parallel RGB LCD Color (bit) SRAM (KB) SPI Flash Boot 56 56 56 56 56 56 56 56 56 56 56 56 √ √ √ √ √ √ √ √ √ √ √ √ Part No. 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 √ √ √ √ √ √ √ √ √ √ √ √ 1 1 1 1 1 1 1 1 1 1 1 1 LQFP216 LQFP216 LQFP216 LQFP128 LQFP128 LQFP128 LQFP128 LQFP128 LQFP128 LQFP128 LQFP128 LQFP128 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 NUC970 SERIES DATASHEET Oct. 09 2018 Page 16 of 91 Rev 1.46 NUC970 3.3 Pin Configuration 3.3.1 NUC972DFxxY Pin Diagram NUC970 SERIES DATASHEET Figure 3.3-1 NUC972DFxxY LQFP 216-pin Pin Diagram Oct. 09 2018 Page 17 of 91 Rev 1.46 NUC970 3.3.2 NUC975DKxxY Pin Diagram NUC970 SERIES DATASHEET Figure 3.3-2 NUC975DKxxY LQFP 128-pin Pin Diagram Oct. 09 2018 Page 18 of 91 Rev 1.46 NUC970 3.3.3 NUC976DKxxY Pin Diagram NUC970 SERIES DATASHEET Figure 3.3-3 NUC976DKxxY LQFP 128-pin Pin Diagram Oct. 09 2018 Page 19 of 91 Rev 1.46 NUC970 3.3.4 NUC977DKxxY Pin Diagram NUC970 SERIES DATASHEET Figure 3.3-4 NUC977DKxxY LQFP 128-pin Pin Diagram Oct. 09 2018 Page 20 of 91 Rev 1.46 NUC970 3.3.5 NUC978DKxxY Pin Diagram NUC970 SERIES DATASHEET Figure 3.3-5 NUC978DKxxY LQFP 128-pin Pin Diagram Oct. 09 2018 Page 21 of 91 Rev 1.46 NUC970 3.4 Pin Description NUC972 NUC975 NUC976 NUC977 NUC978 Pin Name DFxxY(C) DKxxY DKxxY DKxxY DKxxY 1 2 3 4 5 6 NUC970 SERIES DATASHEET 7 8 9 - - 2 3 4 5 6 7 8 Oct. 09 2018 - - 2 3 4 5 6 7 8 - - 2 3 4 5 6 7 8 Pin Type Description PG.3 I/O General purpose digital I/O pin Port G Pin 3. I2C1_SDA I/O I C1 data input/output pin. PG.2 I/O General purpose digital I/O pin Port G Pin 2. I2C1_SCL O I C1 clock pin. PG.1 I/O General purpose digital I/O pin Port G Pin 1. I2C0_SDA I/O I C0 data input/output pin. PG.0 I/O General purpose digital I/O pin Port G Pin 0. I2C0_SCL O I C0 clock pin. PG.14 I/O General purpose digital I/O pin Port G Pin 14. I2S_LRCK O I S left right channel clock. UART6_CTS I Clear to send input pin for UART6. SC0_CD I SmartCard0 card detect pin. CLK_OUT O Reference Clock Output. PG.13 I/O General purpose digital I/O pin Port G Pin 13. 2 2 2 2 3 4 2 2 2 I2S_BCLK I I S bit clock pin. UART6_RTS O Request to send output pin for UART6. SC0_PWR O SmartCard0 power pin. PG.12 I/O General purpose digital I/O pin Port G Pin 12. I2S_DI I I S data input. UART6_RXD I Data receiver input pin for UART6. 5 2 6 SC0_DAT I/O SmartCard0 data pin. PG.11 I/O General purpose digital I/O pin Port G Pin 11. I2S_DO O I S data output. UART6_TXD O Data transmitter output pin for UART6. SC0_CLK O SmartCard0 clock pin. PG.10 I/O General purpose digital I/O pin Port G Pin 10. I2S_MCLK O I S master clock output pin. SC0_RST O SmartCard0 reset pin. 2 7 8 Page 22 of 91 2 Rev 1.46 NUC970 10 9 9 9 9 IO_VDD P MCU I/O power pin. 11 - - - - CORE_VSS P MCU internal core ground pin. 12 10 10 10 10 CORE_VDD P MCU internal core power pin. 13 - - - - DDR_VSS P DDR ground pin. 14 11 11 11 11 DDR_VDD P DDR power pin. 15 - - - - DDR_VSS P DDR ground pin. 16 11 11 11 11 DDR_VDD P DDR power pin. 17 - - - - DDR_VSS P DDR ground pin. 18 12 12 12 12 DDR_VDD P DDR power pin. 19 - - - - CORE_VSS P MCU internal core ground pin. 20 - - - - IO_VDD P MCU I/O power pin. 21 13 13 13 13 CORE_VDD P MCU internal core power pin. - - - - - 22 24 25 26 15 16 17 - Oct. 09 2018 - - - - 14 - - - - 14 I/O INT4 I PF.14 I/O General purpose digital I/O pin Port F Pin 15. External interrupt 4 input pin. General purpose digital I/O pin Port F Pin 14. UART2_CTS I Clear to send input pin for UART2. TM3_CAP I Enhanced TIMER capture input pin. INT3 I External interrupt 3 input pin. PF.13 I/O General purpose digital I/O pin Port F Pin 13. UART2_RTS O Request to send output pin for UART2. TM3_TGL O Enhanced TIMER toggle output pin. INT2 I External interrupt 2 input pin. PF.12 I/O - - General purpose digital I/O pin Port F Pin 12. UART2_RXD I Data receiver input pin for UART2. TM2_CAP I Enhanced TIMER capture input pin. INT1 I External interrupt 1 input pin. PF.11 I/O General purpose digital I/O pin Port F Pin 11. UART2_TXD O Data transmitter output pin for UART2. TM2_TGL O Enhanced TIMER toggle output pin. INT0 I External interrupt 0 input pin. PG.9 I/O - - 14 Page 23 of 91 General purpose digital I/O pin Port G Pin 9. Rev 1.46 NUC970 SERIES DATASHEET 23 14 PF.15 NUC970 27 28 29 30 31 NUC970 SERIES DATASHEET 32 33 34 35 - - - 18 19 - - - - Oct. 09 2018 15 16 17 - - - - - - 15 16 17 - - - - - - LCD_DEN O Data enable or display control signal. PG.8 I/O General purpose digital I/O pin Port G Pin 8. LCD_VSYNC O Vertical sync or frame sync. PG.7 I/O General purpose digital I/O pin Port G Pin 7. LCD_HSYNC O Horizontal sync or line sync. PG.6 I/O General purpose digital I/O pin Port G Pin 6. LCD_CLK O Pixel clock output. PD.15 I/O General purpose digital I/O pin Port D Pin 15. LCD_DATA23 O LCD pixel data output bit 23. UART9_RXD I Data receiver input pin for UART9. PWM3 O PWM3 output pin. EBI_nWAIT I External I/O wait control. 15 16 17 - - PD.14 I/O General purpose digital I/O pin Port D Pin 14. LCD_DATA22 O LCD pixel data output bit 22. UART9_TXD O Data transmitter output pin for UART9. PWM2 O PWM2 output pin. EBI_nOE O External I/O output enable. PD.13 I/O General purpose digital I/O pin Port D Pin 13. LCD_DATA21 O LCD pixel data output bit 21. PWM1 O PWM1 output pin. EBI_nWE O External I/O chip write enable. PD.12 I/O General purpose digital I/O pin Port D Pin 12. LCD_DATA20 O LCD pixel data output bit 20. UART9_RXD I Data receiver input pin for UART9. PWM0 O PWM0 output pin. EBI_nCS4 O External I/O chip select bank 4. PD.11 I/O General purpose digital I/O pin Port D Pin 11. LCD_DATA19 O LCD pixel data output bit 19. UART9_TXD O Data transmitter output pin for UART9. EBI_nCS3 O External I/O chip select bank 3. PD.10 I/O General purpose digital I/O pin Port D Pin 10. - - - - Page 24 of 91 Rev 1.46 NUC970 36 37 38 39 40 42 43 44 45 46 - - - - - - - 20 21 22 Oct. 09 2018 - - 18 19 20 21 22 23 24 25 26 - - 18 19 20 21 22 23 24 25 26 - - 18 19 20 21 O LCD pixel data output bit 18. EBI_nCS2 O External I/O chip select bank 2. PD.9 I/O General purpose digital I/O pin Port D Pin 9. LCD_DATA17 O LCD pixel data output bit 17. EBI_nCS1 O External I/O chip select bank 1. PD.8 I/O General purpose digital I/O pin Port D Pin 8. LCD_DATA16 O LCD pixel data output bit 16. EBI_nCS0 O External I/O chip select bank 0. PA.15 I/O General purpose digital I/O pin Port A Pin 15. LCD_DATA15 O LCD pixel data output bit 15. PWM3 O PWM3 output pin. PA.14 I/O General purpose digital I/O pin Port A Pin 14. LCD_DATA14 O LCD pixel data output bit 14. PWM2 O PWM2 output pin. PA.13 I/O General purpose digital I/O pin Port A Pin 13. LCD_DATA13 O LCD pixel data output bit 13. PWM1 O PWM1 output pin. PA.12 I/O General purpose digital I/O pin Port A Pin 12. LCD_DATA12 O LCD pixel data output bit 12. PWM0 O PWM0 output pin. PA.11 I/O General purpose digital I/O pin Port A Pin 11. LCD_DATA11 O LCD pixel data output bit 11. PA.10 I/O General purpose digital I/O pin Port A Pin 10. LCD_DATA10 O LCD pixel data output bit 10. IO_VDD P MCU I/O power pin. 22 23 24 25 26 PA.9 I/O General purpose digital I/O pin Port A Pin 9. LCD_DATA9 O LCD pixel data output bit 9. PWRON_SET9 IU Power On Setting bit 9. PA.8 I/O General purpose digital I/O pin Port A Pin 8. LCD_DATA8 O LCD pixel data output bit 8. PWRON_SET8 IU Power On Setting bit 8. Page 25 of 91 Rev 1.46 NUC970 SERIES DATASHEET 41 - LCD_DATA18 NUC970 47 48 49 50 51 52 NUC970 SERIES DATASHEET 53 54 23 24 25 26 27 28 29 30 27 28 29 30 31 32 33 34 27 28 29 30 31 32 33 34 27 28 29 30 31 32 33 34 PA.7 I/O General purpose digital I/O pin Port A Pin 7. LCD_DATA7 O LCD pixel data output bit 7. PWRON_SET7 IU Power On Setting bit 7. PA.6 I/O General purpose digital I/O pin Port A Pin 6. LCD_DATA6 O LCD pixel data output bit 6. PWRON_SET6 IU Power On Setting bit 6. PA.5 I/O General purpose digital I/O pin Port A Pin 5. LCD_DATA5 O LCD pixel data output bit 5. PWRON_SET5 IU Power On Setting bit 5. PA.4 I/O General purpose digital I/O pin Port A Pin 4. LCD_DATA4 O LCD pixel data output bit 4. PWRON_SET4 IU Power On Setting bit 4. PA.3 I/O General purpose digital I/O pin Port A Pin 3. LCD_DATA3 O LCD pixel data output bit 3. PWRON_SET3 IU Power On Setting bit 3. PA.2 I/O General purpose digital I/O pin Port A Pin 2. LCD_DATA2 O LCD pixel data output bit 2. PWRON_SET2 IU Power On Setting bit 2. PA.1 I/O General purpose digital I/O pin Port A Pin 1. LCD_DATA1 O LCD pixel data output bit 1. PWRON_SET1 IU Power On Setting bit 1. PA.0 I/O General purpose digital I/O pin Port A Pin 0. LCD_DATA0 O LCD pixel data output bit 0. PWRON_SET0 IU Power On Setting bit 0. 55 - - - - ADC0 AI ADC input channel 0 or VBAT. 56 31 35 - 35 ADC6 AI ADC input channel 6 or XM. 57 32 36 - 36 ADC4 AI ADC input channel 4 or YM. 58 33 37 - 37 AVSS AP Ground pin for analog circuit. 59 34 38 - 38 AVDD AP Power supply for internal analog circuit. 60 35 39 - 39 ADC7 AI ADC input channel 7 or XP. 61 36 40 - 40 ADC5 AI ADC input channel 5 or YP. Oct. 09 2018 Page 26 of 91 Rev 1.46 NUC970 62 - - - - ADC1 AI ADC input channel 1. 63 - - - 41 ADC3 AI ADC input channel 3 or VSENSE. 64 - - - - ADC2 AI ADC input channel 2. 65 37 41 - - VREF AI ADC voltage reference pin. 66 38 *. 42 35 42 RTC_VDD P RTC power input. (*. or 3.3V ) 67 - 43 36 - SYS_PWREN O RTC wake-up output pin for external DC/DC enable pin control. 68 - 44 37 - SYS_nWAKEUP IU RTC wake-up interrupt input with internal pull-high. 69 - 45 38 43 X32_IN AI External 32.768kHz crystal input. 70 - 46 39 44 X32_OUT AO External 32.768kHz crystal output. PH.4 I/O General purpose digital I/O pin Port H Pin 4. UART1_TXD O Data transmitter output pin for UART1. EBI_ADDR0 O External I/O address bus bit 0. INT4 I External interrupt 4 input pin. PH.5 I/O 71 72 74 75 - - - - Oct. 09 2018 - - - - - - - - 40 - - General purpose digital I/O pin Port H Pin 5. UART1_RXD I Data receiver input pin for UART1. EBI_ADDR1 O External I/O address bus bit 1. INT5 I External interrupt 5 input pin. PH.6 I/O General purpose digital I/O pin Port H Pin 6. SD1_CMD O SD/SDIO Port 1 – command/response. UART1_RTS O Request to send output pin for UART1. EBI_ADDR2 O External I/O address bus bit 2. INT6 I External interrupt 6 input pin. PH.7 I/O General purpose digital I/O pin Port H Pin 7. SD1_CLK O SD/SDIO Port 1 – clock. UART1_CTS I Clear to send input pin for UART1. EBI_ADDR3 O External I/O address bus bit 3. INT7 I External interrupt 7 input pin. PH.8 I/O General purpose digital I/O pin Port H Pin 8. SD1_DAT0 I/O SD/SDIO mode #1 data line bit 0. UART4_TXD O Data transmitter output pin for UART4. EBI_ADDR4 O External I/O address bus bit 4. - - - - Page 27 of 91 Rev 1.46 NUC970 SERIES DATASHEET 73 - NUC970 76 77 78 79 - - - 39 - - - - - - - - PH.9 I/O General purpose digital I/O pin Port H Pin 9. SD1_DAT1 I/O SD/SDIO mode #1 data line bit 1. UART4_RXD I Data receiver input pin for UART4. EBI_ADDR5 O External I/O address bus bit 5. PH.10 I/O General purpose digital I/O pin Port H Pin 10. SD1_DAT2 I/O SD/SDIO mode #1 data line bit 2. UART4_RTS O Request to send output pin for UART4. EBI_ADDR6 O External I/O address bus bit 6. PH.11 I/O General purpose digital I/O pin Port H Pin 11. SD1_DAT3 I/O SD/SDIO mode #1 data line bit 3. UART4_CTS I Clear to send input pin for UART4. EBI_ADDR7 O External I/O address bus bit 7. PH.12 I/O General purpose digital I/O pin Port H Pin 12. - - - - SD1_nCD I SD/SDIO mode #1 – card detect. UART8_TXD O Data transmitter output pin for UART8. SPI0_SS1 O 2nd SPI0 chip select pin. EBI_ADDR8 O External I/O address bus bit 8. NUC970 SERIES DATASHEET 80 - - - - IO_VDD P MCU I/O power pin. 81 - - - - CORE_VSS P MCU internal core ground pin. 82 40 47 41 45 CORE_VDD P MCU internal core power pin. 83 84 85 41 - - - - - - - - - PH.13 I/O General purpose digital I/O pin Port H Pin 13. SD1_nPWR O SD/SDIO mode #1 – power enable. UART8_RXD I Data receiver input pin for UART8. SPI1_SS1 O 2nd SPI1 chip select pin. EBI_ADDR9 O External I/O address bus bit 9. PH.14 I/O General purpose digital I/O pin Port H Pin 14. UART8_RTS O Request to send output pin for UART8. CAN1_RXD I CAN bus receiver1 input. EBI_nBE0 O External I/O low byte enable. PH.15 I/O General purpose digital I/O pin Port H Pin 15. - UART8_CTS Oct. 09 2018 Page 28 of 91 I Clear to send input pin for UART8. Rev 1.46 NUC970 86 87 88 89 91 42 43 44 45 46 Oct. 09 2018 - - - 48 49 50 - 42 43 44 45 46 O CAN bus transmitter1 output. EBI_nBE1 O External I/O high byte enable. PI.0 I/O General purpose digital I/O pin Port I Pin 0. EBI_DATA0 I/O External I/O data bus bit 0. PI.1 I/O General purpose digital I/O pin Port I Pin 1. NAND_nCS0 O NAND flash chip select 0. UART7_TXD O Data transmitter output pin for UART7. EBI_DATA1 I/O External I/O data bus bit 1. - 46 47 48 INT6 I External interrupt 6 input pin. PI.2 I/O General purpose digital I/O pin Port I Pin 2. NAND_nWP O NAND flash srite protect. UART7_RXD I Data receiver input pin for UART7. EBI_DATA2 I/O External I/O data bus bit 2. INT7 I External interrupt 7 input pin. PI.3 I/O General purpose digital I/O pin Port I Pin 3. VCAP_CLKO O Sensor interface system clock. NAND_ALE O NAND flash address latch enable. I2C1_SCL O I C1 clock pin. EBI_DATA3 I/O External I/O data bus bit 3. CAN0_RXD I CAN bus receiver0 input. RTC_TICK O RTC tick output PI.4 I/O General purpose digital I/O pin Port I Pin 4. 2 VCAP_PCLK I Sensor interface pixel clock. NAND_CLE O NAND flash command latch enable. I2C1_SDA I/O I C1 data input/output pin. EBI_DATA4 I/O External I/O data bus bit 4. CAN0_TX O CAN bus transmitter0 output. PI.5 I/O General purpose digital I/O pin Port I Pin 5. 49 2 VCAP_HSYNC I Sensor interface HSYNC. NAND_nWE O NAND flash write enable. eMMC_CMD I/O eMMC command/Response. 50 Page 29 of 91 Rev 1.46 NUC970 SERIES DATASHEET 90 - CAN1_TXD NUC970 92 NUC970 SERIES DATASHEET 93 47 48 51 52 47 48 51 EBI_DATA5 I/O External I/O data bus bit 5. SD1_CMD O SD/SDIO mode #1 – command/response. UART1_TXD O Data transmitter output pin for UART1. SPI1_SS0 O 1st SPI1 chip select pin. PI.6 I/O General purpose digital I/O pin Port I Pin 6. VCAP_VSYNC I Sensor interface VSYNC. NAND_nRE O NAND flash read enable. eMMC_CLK O eMMC clock output. SC1_RST O SmartCard1 reset pin. EBI_DATA6 I/O External I/O data bus bit 6. SD1_CLK O SD/SDIO mode #1– clock. UART1_RXD I Data receiver input pin for UART1. SPI1_CLK O SPI1 serial clock pin. PI.7 I/O General purpose digital I/O pin Port I Pin 7. VCAP_FIELD I Sensor interface even/odd field indicator. NAND_RDY0 I NAND flash ready/busy channel 0. eMMC_DATA3 I/O eMMC data line bit 3. SC1_CLK O SmartCard1 clock pin. EBI_DATA7 I/O External I/O data bus bit 7. SD1_DAT0 I/O SD/SDIO mode #1 data line bit 0. UART1_RTS O Request to send output pin for UART1. 52 SPI1_DO (SPI1_DATA0) PI.8 94 49 53 49 I/O SPI1 Data out pin. (SPI1 data 0 in dual/quad mode.) General purpose digital I/O pin Port I Pin 8. VCAP_DATA0 I NAND_DATA0 I/O NAND flash data bus bit 0. Sensor interface data bus bit 0. eMMC_DATA0 I/O eMMC data line bit 0. SC1_DAT I/O SmartCard1 data pin. EBI_DATA8 I/O External I/O data bus bit 8. SD1_DAT1 I/O SD/SDIO mode #1 data line bit 1. I Clear to send input pin for UART1. 53 UART1_CTS Oct. 09 2018 I (I/O) Page 30 of 91 Rev 1.46 NUC970 SPI1_DI (SPI1_DATA1) PI.9 95 96 50 51 54 55 50 51 NAND_DATA1 I/O NAND flash data bus bit 1. eMMC_DATA1 I/O eMMC data line bit 1. SC1_PWR O SmartCard1 power pin. EBI_DATA9 I/O External I/O data bus bit 9. SD1_DAT2 I/O SD/SDIO mode #1 data line bit 2. UART4_TXD O Data transmitter output pin for UART4. PI.10 I/O General purpose digital I/O pin Port I Pin 10. VCAP_DATA2 I 53 57 53 NAND_DATA2 I/O NAND flash data bus bit 2. eMMC_DATA2 I/O eMMC data line bit 2. 55 I SmartCard1 card detect pin. EBI_DATA10 I/O External I/O data bus bit 10. SD1_DAT3 I/O SD/SDIO mode #1 data line bit 3. I Data receiver input pin for UART4. 56 57 54 Oct. 09 2018 58 54 58 I/O General purpose digital I/O pin Port I Pin 11. VCAP_DATA3 I NAND_DATA3 I/O NAND flash data bus bit 3. SC0_RST O SmartCard0 reset pin. EBI_DATA11 I/O External I/O data bus bit 11. PI.12 I/O General purpose digital I/O pin Port I Pin 12. Sensor interface data bus bit 3. VCAP_DATA4 I NAND_DATA4 I/O NAND flash data bus bit 4. UART8_TXD O Data transmitter output pin for UART8. SC0_CLK O SmartCard0 clock pin. EBI_DATA12 I/O External I/O data bus bit 12. SD1_nCD 99 Sensor interface data bus bit 2. PI.13 Page 31 of 91 I I/O Sensor interface data bus bit 4. SD/SDIO mode #1 – card detect. General purpose digital I/O pin Port I Pin 13. Rev 1.46 NUC970 SERIES DATASHEET 98 52 Sensor interface data bus bit 1. 54 PI.11 56 General purpose digital I/O pin Port I Pin 9. I UART4_RXD 52 I/O SPI1 Data input pin. (SPI1 data 1 in dual/quad mode.) VCAP_DATA1 SC1_CD 97 I (I/O) NUC970 VCAP_DATA5 I NAND_DATA5 I/O UART8_RXD 100 101 55 56 59 60 55 56 I Sensor interface data bus bit 5. NAND flash data bus bit 5. Data receiver input pin for UART8. SC0_DAT I/O SmartCard0 data pin. EBI_DATA13 I/O External I/O data bus bit 13. SD1_nPWR O SD/SDIO mode #1 – power enable. PI.14 I/O General purpose digital I/O pin Port I Pin 14. VCAP_DATA6 I Sensor interface data bus bit 6. NAND_DATA6 I/O NAND flash data bus bit 6. UART8_RTS O Request to send output pin for UART8. SC0_PWR O SmartCard0 power pin. EBI_DATA14 I/O External I/O data bus bit 14. PI.15 I/O General purpose digital I/O pin Port I Pin 15. 59 60 VCAP_DATA7 I NAND_DATA7 I/O Sensor interface data bus bit 7. NAND flash data bus bit 7. NUC970 SERIES DATASHEET UART8_CTS I Clear to send input pin for UART8. SC0_CD I SmartCard0 card detect pin. EBI_DATA15 I/O External I/O data bus bit 15. CLK_OUT O Clock output pin. 102 - - - - CORE_VDD P MCU internal core power pin. 103 - - - - CORE_VSS P MCU internal core ground pin. 104 57 61 57 61 IO_VDD P MCU I/O power pin. - - - - - PG.15 105 106 58 59 - - 58 59 - General purpose digital I/O pin Port G Pin 15. INT5 I PB.0 I/O General purpose digital I/O pin Port B Pin 0. NAND_nCS1 O NAND flash chip select 1. UART5_TXD O Data transmitter output pin for UART5. SPI0_SS1 O 2nd SPI0 chip select pin. TM1_TGL O Enhanced TIMER toggle output pin. External interrupt 5 input pin. PB.1 I/O General purpose digital I/O pin Port B Pin 1. NAND_RDY1 Oct. 09 2018 I/O Page 32 of 91 I NAND flash ready/busy channel 1. Rev 1.46 NUC970 107 108 109 110 - - - - 62 63 - - 60 61 62 63 64 111 60 65 65 65 62 67 67 2nd SPI1 chip select pin. TM1_CAP I Enhanced TIMER capture input pin. PB.2 I/O General purpose digital I/O pin Port B Pin 2. UART6_TXD O Data transmitter output pin for UART6. PWM0 O PWM0 output pin. TM0_TGL O Enhanced TIMER toggle output pin. PB.3 I/O General purpose digital I/O pin Port B Pin 3. UART6_RXD I Data receiver input pin for UART6. PWM1 O PWM1 output pin. TM0_CAP I Enhanced TIMER capture input pin. PB.4 I/O General purpose digital I/O pin Port B Pin 4. UART6_RTS O Request to send output pin for UART6. PB.5 I/O General purpose digital I/O pin Port B Pin 5. UART6_CTS I Clear to send input pin for UART6. IO_VSS P MCU I/O ground pin. PB.6 I/O General purpose digital I/O pin Port B Pin 6. SPI0_SS0 O 1st SPI0 chip select pin. PB.7 I/O General purpose digital I/O pin Port B Pin 7. SPI0_CLK O SPI0 serial clock pin. PB.8 I/O General purpose digital I/O pin Port B Pin 8. 66 67 SPI0_DO (SPI0_DATA0) PB.9 114 63 68 68 68 - 64 - - - 115 65 69 69 SPI0_DI (SPI0_DATA1) I/O I (I/O) SPI0 Data out pin. (SPI0 data 0 in dual/quad mode.) General purpose digital I/O pin Port B Pin 9. SPI0 Data input pin. (SPI0 data 1 in dual/quad mode.) GND P PB.10 I/O General purpose digital I/O pin Port B Pin 10. Ground pin for digital. UART10_TXD O Data transmitter output pin for UART10. SPI0_DATA2 I/O SPI0 data 2 in dual/quad mode. 69 CAN0_RXD Oct. 09 2018 O (I/O) Page 33 of 91 I CAN bus receiver0 input. Rev 1.46 NUC970 SERIES DATASHEET 113 O - 64 66 SPI1_SS1 - 64 66 Data receiver input pin for UART5. 63 - 61 I 62 - 112 UART5_RXD NUC970 PB.11 116 117 118 119 66 67 68 - 70 71 72 73 70 71 72 73 NUC970 SERIES DATASHEET 121 122 123 124 - 69 70 - - Oct. 09 2018 74 - - - - 74 - - - - General purpose digital I/O pin Port B Pin 11. UART10_RXD I Data receiver input pin for UART10. SPI0_DATA3 I/O SPI0 data 3 in dual/quad mode. CAN0_TXD O CAN bus transmitter0 output. PB.12 I/O General purpose digital I/O pin Port B Pin 12. UART10_TXD O Data transmitter output pin for UART10. SPI1_SS0 O 1st SPI1 chip select pin. PB.13 I/O General purpose digital I/O pin Port B Pin 13. 70 71 72 UART10_RXD I Data receiver input pin for UART10. SPI1_CLK O SPI1 serial clock pin. PB.14 I/O General purpose digital I/O pin Port B Pin 14. UART10_RTS O Request to send output pin for UART10. SPI1_DO (SPI1_DATA0) O (I/O) 73 PB.15 120 I/O I/O UART10_CTS I SPI1_DI (SPI1_DATA1) I (I/O) SPI1 Data out pin. (SPI1 data 0 in dual/quad mode.) General purpose digital I/O pin Port B Pin 15. Clear to send input pin for UART10. 74 SPI1 Data input pin. (SPI1 data 1 in dual/quad mode.) PG.4 I/O General purpose digital I/O pin Port G Pin 4. NAND_nCS1 O NAND flash chip select 1. UART7_TXD O Data transmitter output pin for UART7. SPI1_DATA2 I/O SPI1 data 2 in dual/quad mode. PG.5 I/O General purpose digital I/O pin Port G Pin 5. - NAND_RDY1 I NAND flash ready/busy channel 1. UART7_RXD I Data receiver input pin for UART7. SPI1_DATA3 I/O SPI1 data 3 in dual/quad mode. PC.0 I/O General purpose digital I/O pin Port C Pin 0. NAND_DATA0 I/O NAND flash data bus bit 0. eMMC_DATA0 I/O eMMC data line bit 0. PC.1 I/O General purpose digital I/O pin Port C Pin 1. NAND_DATA1 I/O NAND flash data bus bit 1. - - - Page 34 of 91 Rev 1.46 NUC970 125 126 127 128 129 131 132 133 - - - - - - - 71 Oct. 09 2018 - - - - - - - - - - - - - - - - - - - - - - I/O eMMC data line bit 1. PC.2 I/O General purpose digital I/O pin Port C Pin 2. NAND_DATA2 I/O NAND flash data bus bit 2. eMMC_DATA2 I/O eMMC data line bit 2. PC.3 I/O General purpose digital I/O pin Port C Pin 3. NAND_DATA3 I/O NAND flash data bus bit 3. eMMC_DATA3 I/O eMMC data line bit 3. PC.4 I/O General purpose digital I/O pin Port C Pin 4. NAND_DATA4 I/O NAND flash data bus bit 4. eMMC_CMD I/O eMMC command/Response. PC.5 I/O General purpose digital I/O pin Port C Pin 5. NAND_DATA5 I/O NAND flash data bus bit 5. eMMC_CLK O eMMC clock output. PC.6 I/O General purpose digital I/O pin Port C Pin 6. NAND_DATA6 I/O NAND flash data bus bit 6. UART10_TXD O Data transmitter output pin for UART10. TM0_TGL O Enhanced TIMER toggle output pin. PC.7 I/O General purpose digital I/O pin Port C Pin 7. NAND_DATA7 I/O NAND flash data bus bit 7. UART10_RXD I Data receiver input pin for UART10. TM0_CAP I Enhanced TIMER capture input pin. - - PC.8 I/O General purpose digital I/O pin Port C Pin 8. NAND_nCS0 O NAND flash chip select 0. UART10_RTS O Request to send output pin for UART10. TM1_TGL O Enhanced TIMER toggle output pin. PC.9 I/O General purpose digital I/O pin Port C Pin 9. NAND_ALE O NAND flash address latch enable. UART10_CTS I Clear to send input pin for UART10. TM1_CAP I Enhanced TIMER capture input pin. - - PC.10 I/O General purpose digital I/O pin Port C Pin 10. NAND_CLE O NAND flash command latch enable. - Page 35 of 91 Rev 1.46 NUC970 SERIES DATASHEET 130 - eMMC_DATA1 NUC970 134 135 136 137 NUC970 SERIES DATASHEET 138 139 140 141 72 73 74 - 75 76 77 78 - - - - 75 76 77 78 - - - - 75 76 77 78 UART4_TXD O Data transmitter output pin for UART4. TM2_TGL O Enhanced TIMER toggle output pin. PC.11 I/O General purpose digital I/O pin Port C Pin 11. NAND_nWE O NAND flash write enable. UART4_RXD I Data receiver input pin for UART4. TM2_CAP I Enhanced TIMER capture input pin. - PC.12 I/O General purpose digital I/O pin Port C Pin 12. NAND_nRE O NAND flash read enable. UART4_RTS O Request to send output pin for UART4. TM3_TGL O Enhanced TIMER toggle output pin. PC.13 I/O General purpose digital I/O pin Port C Pin 13. - NAND_RDY0 I NAND flash ready/busy channel 0. UART4_CTS I Clear to send input pin for UART4. TM3_CAP I Enhanced TIMER capture input pin. - - PC.14 I/O General purpose digital I/O pin Port C Pin 14. NAND_nWP O NAND flash write protect. PWM0 O PWM0 output pin. PJ.3 I/O General purpose digital I/O pin Port J Pin 3. JTAG_TDO O JTAG test data out. PJ.0 I/O General purpose digital I/O pin Port J Pin 0. JTAG_TCK O JTAG test clock. PJ.1 I/O General purpose digital I/O pin Port J Pin 1. JTAG_TMS O JTAG test mode select. PJ.2 I/O General purpose digital I/O pin Port J Pin 2. 75 76 77 78 JTAG_TDI 142 143 79 80 79 80 79 80 JTAG test data in. PJ.4 I/O General purpose digital I/O pin Port J Pin 4. JTAG_nTRST O JTAG Reset. nRESET IU WDT_nRST O IO_VDD P MCU I/O power pin. CORE_VSS P MCU internal core ground pin. 79 80 144 81 81 81 81 145 - - - - Oct. 09 2018 I Page 36 of 91 External reset input: active LOW, with an internal pull-up. Set this pin low reset to initial state. Watch dog timer external reset output pin. Opendrain. Rev 1.46 NUC970 146 82 82 82 82 CORE_VDD P MCU internal core power pin. 147 - - - - DDR_VSS P DDR ground pin. 148 83 83 83 83 DDR_VDD P DDR power pin. 149 - - - - DDR_VSS P DDR ground pin. 150 83 83 83 83 DDR_VDD P DDR power pin. 151 - - - - DDR_VSS P DDR ground pin. 152 84 84 84 84 DDR_VDD P DDR power pin. - - - - - DDR_VSS P DDR ground pin. 153 - - - - CORE_VSS P MCU internal core ground pin. 154 85 85 85 85 IO_VDD P MCU I/O power pin. 155 86 86 86 86 156 157 158 160 161 88 89 90 91 92 87 88 89 90 91 92 87 88 89 90 91 92 I/O General purpose digital I/O pin Port D Pin 0. SD0_CMD O SD/SDIO mode #0 command/response. PD.1 I/O General purpose digital I/O pin Port D Pin 1. SD0_CLK O SD/SDIO mode #0 clock. PD.2 I/O General purpose digital I/O pin Port D Pin 2. SD0_DAT0 I/O SD/SDIO mode #0 data line bit 0. PD.3 I/O General purpose digital I/O pin Port D Pin 3. SD0_DAT1 I/O SD/SDIO mode #0 data line bit 1. PD.4 I/O General purpose digital I/O pin Port D Pin 4. SD0_DAT2 I/O SD/SDIO mode #0 data line bit 2. PD.5 I/O General purpose digital I/O pin Port D Pin 5. SD0_DAT3 I/O SD/SDIO mode #0 data line bit 3. PD.6 I/O General purpose digital I/O pin Port D Pin 6. 87 88 89 90 91 92 SD0_nCD I 162 - 93 93 93 PD.7 163 93 94 94 94 CORE_VDD P MCU internal core power pin. 164 - - - - PLL_VDD P PLL power input pin. 165 94 95 95 95 PLL_VSS P PLL ground. 166 - - - - CORE_VDD P MCU internal core power pin. 167 - - - 96 Oct. 09 2018 I/O SD/SDIO mode #0 card detect. General purpose digital I/O pin Port D Pin 7. PH.3 I/O General purpose digital I/O pin Port H Pin 3. I2C1_SDA I/O I C1 data input/output pin. Page 37 of 91 2 Rev 1.46 NUC970 SERIES DATASHEET 159 87 PD.0 NUC970 168 169 170 NUC970 SERIES DATASHEET 171 - - - - - - - - - - - - UART9_RXD I Data receiver input pin for UART9. CAN0_TXD O CAN bus transmitter0 output. PWM3 O PWM3 output pin. INT3 I External interrupt 3 input pin. PH.2 I/O General purpose digital I/O pin Port H Pin 2. I2C1_SCL O I C1 clock pin. UART9_TXD O Data transmitter output pin for UART9. CAN0_RXD I CAN bus receiver0 input. PWM2 O PWM2 output pin. INT2 I External interrupt 2 input pin. PE.13 I/O 97 173 - - - - - - UART8_CTS I Clear to send input pin for UART8. UART3_RXD I Data receiver input pin for UART3. CLK_OUT O Reference Clock Output. PE.12 I/O General purpose digital I/O pin Port E Pin 12. 99 UART8_RTS O Request to send output pin for UART8. UART3_TXD O Data transmitter output pin for UART3. PE.11 I/O General purpose digital I/O pin Port E Pin 11. - RMII1_RXERR I RMII1 receive data error. UART8_RXD I Data receiver input pin for UART8. - - Oct. 09 2018 - - I/O General purpose digital I/O pin Port E Pin 10. RMII1_CRSDV I RMII1 carrier sense / receive data valid. UART8_TXD O Data transmitter output pin for UART8. PE.9 I/O General purpose digital I/O pin Port E Pin 9. RMII1_RXDATA1 I RMII1 receive data bus bit 1. SD1_nPWR O SD/SDIO mode #1 power enable. UART1_CD I Carrier detect input pin for UART1. - PE.8 174 General purpose digital I/O pin Port E Pin 13. 98 PE.10 172 2 I/O General purpose digital I/O pin Port E Pin 8. RMII1_RXDATA0 I RMII1 receive data bus bit 0. SD1_nCD I SD/SDIO mode #1 card detect. UART1_RI I Ring indicator input pin for UART1. - Page 38 of 91 Rev 1.46 NUC970 PE.7 RMII1_REFCLK 175 - - - UART1_DSR 177 178 180 181 95 96 97 98 99 - - - - - 96 - - - - - 96 100 97 97 I/O I SD/SDIO mode #1 data line bit 3. Data set ready input pin for UART1. PE.6 I/O General purpose digital I/O pin Port E Pin 6. RMII1_TXEN O RMII1 transmit enable. SD1_DAT2 I/O SD/SDIO mode #1 data line bit 2. UART1_DTR O Data terminal ready output pin for UART1. PE.5 I/O General purpose digital I/O pin Port E Pin 5. RMII1_TXDATA1 O RMII1 transmit data bus bit 1. SD1_DAT1 I/O SD/SDIO mode #1 data line bit 1. UART1_CTS I Clear to send input pin for UART1. CLK_OUT O Reference Clock Output. PE.4 I/O General purpose digital I/O pin Port E Pin 4. RMII1_TXDATA0 O RMII1 Transmit Data bus SD1_DAT0 I/O SD/SDIO mode #1 ata line bit 0. UART1_RTS O Request to send output pin for UART1. PE.3 I/O General purpose digital I/O pin Port E Pin 3. RMII1_MDIO I/O RMII1 Management Data I/O SD1_CLK O SD/SDIO mode #1 clock. UART1_RXD I Data receiver input pin for UART1. - - - - PE.2 I/O General purpose digital I/O pin Port E Pin 2. RMII1_MDC O RMII1 Management Data Clock SD1_CMD O SD/SDIO mode #1 command/response. UART1_TXD O Data transmitter output pin for UART1. PE.1 I/O General purpose digital I/O pin Port E Pin 1. - 100 UART0_RXD 182 RMII1 reference clock. I Data receiver input pin for UART0. PE.0 I/O General purpose digital I/O pin Port E Pin 0. UART0_TXD O Data transmitter output pin for UART0. 101 183 101 98 98 102 IO_VDD P MCU I/O power pin. 184 102 99 99 103 XT1_IN AI External 12MHz crystal input pin. Oct. 09 2018 Page 39 of 91 Rev 1.46 NUC970 SERIES DATASHEET 179 - I General purpose digital I/O pin Port E Pin 7. SD1_DAT3 176 I/O NUC970 185 103 100 100 104 186 - 101 101 - 187 104 102 102 105 XT1_OUT IO_VSS PF.9 RMII0_RXERR PF.8 188 105 103 103 PF.7 106 104 104 PF.6 107 105 105 PF.5 108 106 106 193 194 NUC970 SERIES DATASHEET 195 196 197 198 199 200 109 110 111 112 113 114 115 116 - Oct. 09 2018 107 108 109 110 111 112 113 114 - 107 108 109 110 111 112 113 114 - I/O RMII0 receive data error. General purpose digital I/O pin Port F Pin 8. I I/O RMII0 carrier sense / receive data valid. General purpose digital I/O pin Port F Pin 7. I I/O RMII0 receive data bus bit 1. General purpose digital I/O pin Port F Pin 6. I I/O RMII0 receive data bus bit 0. General purpose digital I/O pin Port F Pin 5. 109 RMII0_REFCLK 192 I General purpose digital I/O pin Port F Pin 9. 108 RMII0_RXDATA0 191 I/O MCU I/O ground pin. 107 RMII0_RXDATA1 190 P External 12MHz crystal output pin. 106 RMII0_CRSDV 189 AO I RMII0 reference clock. PF.4 I/O General purpose digital I/O pin Port F Pin 4. RMII0_TXEN O RMII0 transmit enable. PF.3 I/O General purpose digital I/O pin Port F Pin 3. RMII0_TXDATA1 O RMII0 transmit data bus bit 1. PF.2 I/O General purpose digital I/O pin Port F Pin 2. RMII0_TXDATA0 O RMII0 Transmit Data bus bit 0. PF.1 I/O General purpose digital I/O pin Port F Pin 1. RMII0_MDIO I/O RMII0 Management Data I/O PF.0 I/O General purpose digital I/O pin Port F Pin 0. RMII0_MDC O RMII0 Management Data Clock PH.1 I/O General purpose digital I/O pin Port H Pin 1. 110 111 112 113 114 115 116 USB_OVRCUR I USB overcurrent INT1 I External interrupt 1 input pin. PH.0 I/O USB0_VBUSVLD I USB0 VBUS valid. INT0 I External interrupt 0 input pin. PF.10 I/O General purpose digital I/O pin Port F Pin 10. USB_PWREN O USB host output power control pin for LQFP128 package only. PE.15 I/O General purpose digital I/O pin Port E Pin 15. 117 - General purpose digital I/O pin Port H Pin 0. Page 40 of 91 Rev 1.46 NUC970 201 - - - USB1_PWREN O USB1 host output power control pin. PE.14 I/O General purpose digital I/O pin Port E Pin 14. USB0_PWREN O USB0 host output power control pin. - - - - - CORE_VSS P MCU internal core ground pin. - - 115 115 118 CORE_VDD P MCU internal core power pin. 203 117 116 116 118 CORE_VDD P MCU internal core power pin. 204 118 117 117 118 USBPLL1_VDD P USB1 PLL power pin. 205 - - - - USB1_VSS P USB1 ground pin. 206 119 118 118 119 USB1_DM I/O USB1 differential signal D-. 207 120 119 119 120 USB1_DP I/O USB1 differential signal D+. 208 121 120 120 121 USB1_VDD AP USB1 I/O power pin. 209 122 121 121 122 USB1_REXT I USB1 module reference Resister. 210 123 122 122 123 USBPLL0_VDD P USB0 PLL power pin. 211 - 123 123 - USB0_VSS P USB0 ground pin. 212 124 124 124 124 USB0_DM I/O USB0 differential signal D-. 213 125 125 125 125 USB0_DP I/O USB0 differential signal D+. 214 126 126 126 126 USB0_VDD AP USB0 I/O power pin. 215 127 127 127 127 USB0_REXT I USB0 module reference Resister. - 128 128 128 128 IO_VSS P MCU I/O ground pin. 216 1 1 1 1 USB0_ID IU USB0 Host/Device select. Note: Pin Type I=Digital Input, IU=Digital Input with Internal pull high, O=Digital Output, I/O= Digital Bi-direction; AI=Analog Input, AO=Analog Output; P=Power Pin; AP=Analog Power Oct. 09 2018 Page 41 of 91 Rev 1.46 NUC970 SERIES DATASHEET 202 NUC970 4 BLOCK DIAGRAM 4.1 NUC970 Series Block Diagram ARM926EJ-S 300 MHz Memory Storage Peripherals I-Cache 16 KB ROM 16KB NAND Flash Interface AIC D-Cache 16 KB MMU SRAM 56KB DDR2 SDRAM GDMA 2-ch Hardware Accelerator 2D Graphic Engine Timer X 5 eMMC Flash Interface ETimer X 4 JPEG WDT/WWDT SD Card Interface EBI PWM X 4 Cryptographic AHB/APB Bus Power Control Clock Control POR HS Ext. Crystal Osc. 12 MHz LVR LVD LS Ext. Crystal Osc. 32.768 kHz PLL x 2 Connectivity Human Interface UART X 11 (IrDA, RS-485) Ethernet MAC X 2 CCAN X 2 USB 2.0 High Speed Host SPI X 2, PIC USB 2.0 High Speed Device I2C X 2 I2S Smart Card X 2 SDIO Video Capture Sensor Interface LCD Display Interface ADC (Touch Screen) Figure 4.1 NUC970 Series Block Diagram NUC970 SERIES DATASHEET Oct. 09 2018 Page 42 of 91 Rev 1.46 NUC970 5 FUNCTIONAL DESCRIPTION 5.1 ARM® ARM926EJ-S CPU Core 5.1.1 Overview The ARM926EJ-S CPU core is a member of the ARM9 family of general-purpose microprocessors. The ARM926EJ-S CPU core is targeted at multi-tasking applications where full memory management, high performance, and low power are all important. The ARM926EJ-S CPU core supports the 32-bit ARM and 16-bit Thumb instruction sets, enabling the user to choose between high performance and high code density. The ARM926EJ-S CPU core includes features for efficient execution of Java byte codes, providing Java performance similar to JIT, but without the associated code overhead. The ARM926EJ-S processor provides support for external coprocessor enabling floating-point or other application-specific hardware acceleration to be added. The ARM926EJ-S CPU core implements ARM architecture version 5TEJ. The ARM926EJ-S processor has a Harvard cached architecture and provides a complete highperformance processor subsystem, including:  An ARM9EJ-S integer core.  A Memory Management Unit (MMU).  Separate instruction and data cache.  Separate instruction and data AMBA AHB bus interfaces. NUC970 SERIES DATASHEET Oct. 09 2018 Page 43 of 91 Rev 1.46 NUC970 5.2 System Manager 5.2.1 Overview The system management describes following information and functions.  System Resets  System Power Architecture  System Memory Map  System management registers for Product Identifier (PDID), Power-On Setting, System Wake-Up, Reset Control for on-chip controllers/peripherals, and multi-function pin control.  System Control registers 5.3 Clock Controller (CLK_CTL) 5.3.1 Overview The clock controller generates all clocks for Video, Audio, CPU, AMBA and all the engine modules. This chip includes two PLL modules. The clock source for each module comes from the PLL, or from the external crystal input directly. For each clock there is bit on the CLKEN register to control the clock ON or OFF individually, and the divider setting is on the CLK_DIVCTL register. The register can also be used to control the clock enable or disable for power control. 5.3.2 Features NUC970 SERIES DATASHEET  Supports two PLLs, up to 500 MHz, for high performance system operation  External 12 MHz high speed crystal input for precise timing operation  External 32.768 kHz low speed crystal input for RTC function and low speed clock source 5.4 Advanced Interrupt Controller (AIC) 5.4.1 Overview An interrupt temporarily changes the sequence of program execution to react to a particular event such as power failure, watchdog timer timeout, transmit/receive request from Ethernet MAC Controller, and so on. The CPU processor provides two modes of interrupt, the Fast Interrupt (FIQ) mode for critical session and the Interrupt (IRQ) mode for general purpose. The IRQ request is occurred when the nIRQ input is asserted. Similarly, the FIQ request is occurred when the nFIQ input is asserted. The FIQ has privilege over the IRQ and can preempt an ongoing IRQ. It is possible to ignore the FIQ and the IRQ by setting the F and I bits in the current program status register (CPSR). The Advanced Interrupt Controller (AIC) is capable of processing the interrupt requests up to 64 different sources. Currently, 61 interrupt sources are defined. Each interrupt source is uniquely assigned to an interrupt channel. For example, the watchdog timer interrupt is assigned to channel 1. The AIC implements a proprietary eight-level priority scheme that categories the available 61 interrupt sources into eight priority levels. Interrupt sources within the priority level 0 is the highest priority and the priority level 7 is the lowest. In order to make this scheme work properly, a certain priority level Oct. 09 2018 Page 44 of 91 Rev 1.46 NUC970 must be specified to each interrupt source during power-on initialization; otherwise, the system shall behave unexpectedly. Within each priority level, interrupt source that is positioned in a lower channel has a higher priority. Interrupt source that is active, enabled, and positioned in the lowest channel with priority level 0 is promoted to the FIQ. Interrupt sources within the priority levels other than 0 are routed to the IRQ. The IRQ can be preempted by the occurrence of the FIQ. Interrupt nesting is performed automatically by the AIC. Though interrupt sources originated from the chip itself are intrinsically high-level sensitive, the AIC can be configured as either low-level sensitive, high-level sensitive, negative-edge triggered, or positive-edge triggered to each interrupt source. 5.4.2 Features  AMBA APB bus interface  External interrupts can be programmed as either edge-triggered or level-sensitive  External interrupts can be programmed as either low-active or high-active  Flags to reflect the status of each interrupt source  Individual mask for each interrupt source  Support proprietary 8-level interrupt scheme to employ the priority scheme.  Priority methodology is adopted to allow for interrupt daisy-chaining  Automatically masking out the lower priority interrupt during interrupt nesting  Automatically clearing the interrupt flag when the external interrupt source is programmed to be edge-triggered 5.5 SDRAM Interface Controller (SDIC) The SDRAM Controller support DDR and DDR2 type SDRAM. Only 16-bit data bus width is supported. The SDRAM controller interface to three isolated AHB. All these AHB masters can access the memory independent. Except the memory access, the masters of AHB also could access the SDRAM control registers. For performance and function issue, the SDRAM controller also supports the proprietary EnhancedAHB. The EAHB add the down-count address mode, byte-enable signal and explicit burst access number. The explicit access number function is reached by modify the HBURST signal to EHBURST and it represent the access number. The maximum EAHB access number is 16. The SDRAM controller also builds a BIST module to test the external memory device. An internal arbiter is used to schedule the access from the masters and the BIST request, the BIST request with the highest priority and the then the AHB3 master, AHB2 master and AHB1 master. The SDRAM controller uses 3 pipe queues to improve the SDRAM command and data bus efficiency. The request in queue0 is the SDRAM active data access request. Simultaneous, the requests in queue1 can request the controller to issue the ACTIVE or PRECHARGE command to reduce the access latency for the later command. The queue1 also can issue the READ or WRITE command to close the SDRAM command when advance pipe queue The SDRAM refresh rate is programmable. The Refresh and Power-on control module generate the refresh request signal and SDRAM power on sequence. The SDRAM controller also supports software Oct. 09 2018 Page 45 of 91 Rev 1.46 NUC970 SERIES DATASHEET 5.5.1 Overview NUC970 reset, SDRAM self refresh and auto power down function. 5.5.2 Features  Support DDR and DDR2 SDRAM  Clock speed up to 150 MHz  Support 16-bit data bus width  Memory size depended on embedded SDRAM configuration by different part number. 5.6 MTP Controller (MTP) 5.6.1 Overview The MTP (Multi-Time Programmable) controller performs an easy way to use and program the 256-bit Key for IP Security Engine. There is a MTP EPROM in this chip, and it can be programmed 15 times. User can program 256-bit key and 8-bit user defined fields each time. The 256-bit key is program-only, and only can be used by IP Security Engine. User can use the 8-bit user defined field for special purpose. The MTP also supports a LOCK function to protect the content of programmed key and user defined field. 5.6.2 Features  NUC970 SERIES DATASHEET  Support MTP EPROM programming  256-bit Key and 8-bit user defined data field  Up to 15 times programming Support LOCK function 5.7 External Bus Interface (EBI) 5.7.1 Overview This chip supports External Bus Interface (EBI), which controls the access to the external memory (SRAM) and External I/O devices. The EBI has up to 5 chip select signals to select different devices with 10-bit address bus. It supports 8-bit and 16-bit external data bus width for each bank. 5.7.2 Features  Support SRAM and external I/O devices.  Support 8/16-bit data bus width.  Support 80 and 68 mode interface signals.  Support up to 5 chip selects for SRAM and external I/O devices.  Support programmable access cycle.  Support four 32-bit write buffers. 5.8 General Purpose I/O (GPIO) Oct. 09 2018 Page 46 of 91 Rev 1.46 NUC970 5.8.1 Overview The NUC970 series have up to 148 General-Purpose I/O (GPIO) pins and can be shared with other function pins depending on the chip configuration. These 148 pins are arranged in 10 ports named as PA, PB, PC, PD, PE, PF, PG, PH, PI and PJ. PA, PB, PD, PE, PF, PG, PH and PI have 16 pins on port, PC has 15 pins on port and PJ has 5 pins on port. Each of the 148 I/O pins is independent and can be easily configured by user to meet various system configurations and design requirements. After reset, all 148 I/O pins are configured in General-Purpose I/O Input mode. When any of the 148 I/O pins used as a General-Purpose I/O, its I/O type can be configured by user individually as Input or Output mode. In Input mode, the input buffer type could be selected as CMOS input buffer or Schmitt trigger input buffer. Each I/O pin also equips a pull-up resistor (45 k ~ 82 k) and a pull-down resistor (37 k ~ 91 k). The enable of pull-up/pull-down resistor is controllable. 5.8.2 Features  Support input and output mode.  Support CMOS and Schmitt trigger input buffer.  Support controllable pull-up and pull-down resistor.  Support both edge and level interrupt.  Support de-bounce circuit to filter the noise. 5.9 General DMA Controller (GDMA) 5.9.1 Overview The on-chip GDMA can be started by the software. Software can also be used to restart the GDMA operation after it has been stopped. The CPU can recognize the completion of a GDMA operation by software polling or when it receives an internal GDMA interrupt. The GDMA controller can increment source or destination address, decrement them as well, and conduct 8-bit (byte), 16-bit (half-word), or 32-bit (word) data transfers. 5.9.2 Features  AMBA AHB compliant  Descriptor and Non-Descriptor based function  Supports 8-data burst mode to boost performance  Provides support for external GDMA device  Demand mode speeds up external GDMA operations 5.10 Timer Controller (TMR) Oct. 09 2018 Page 47 of 91 Rev 1.46 NUC970 SERIES DATASHEET The chip has a two-channel general DMA controller with or without descriptor fetch operation, called the GDMA. The two-channel GDMA performs the memory-to-memory data transfers without the CPU intervention: NUC970 5.10.1 Overview The general timer controller includes five channels, TIMER0, TIMER1, TIMER2, TIMER3, and TIMER4, which allow user to easily implement a counting scheme or timing control for applications. The timer can perform functions like frequency measurement, event counting, interval measurement, pulse generation, delay timing, and so on. The timer possesses features such as adjustable resolution, programmable counting period, and detailed information. The timer can generate an interrupt signal upon timeout, or provide the current value of count during operation. 5.10.2 Features  Independent Clock Source for each Timer channel (TMRx_CLK, x= 0, 1, 2, 3, 4).  Five channels with a 24-bit up counter and an interrupt request each.  Internal 8-bit pre-scale counter.  Internal 24-bit up counter is readable through Timer Data Register, TDR (TMR_DR[23:0]).  Supports One-shot, Periodic, and Continuous operation mode.  Time-out period = (Period of timer clock input) * (8-bit pre-scale counter + 1) * (24-bit TCMP setting value).  Maximum counting time = ( ), if TMRx_CLK = 12 MHz. 5.11 Enhance Timer Controller (ETMR) 5.11.1 Overview NUC970 SERIES DATASHEET This chip is equipped with four enhance timer modules including ETIMER0, ETIMER1, ETIMER2 and ETIMER3, which allow user to easily implement a counting scheme or timing control for applications. The timer can perform functions like frequency measurement, event counting, interval measurement, clock generation, delay timing, and so on. The timer can generate an interrupt signal upon timeout, or provide the current value of count during operation. 5.11.2 Features  Independent Clock Enable Control for each Timer (ECLKetmr0, ECLKetmr1, ECLKetmr2 and ECLKetmr3)  Time-out period = (Period of timer clock input) * (8-bit pre-scale counter + 1) * (24-bit TCMP)  Counting cycle time = (1 / ECLKetmr) * (2^8) * (2^24)  Internal 8-bit pre-scale counter  Internal 24-bit up counter is readable through TDR (Timer Data Register)  Supports One-shot, Periodic, Output Toggle and Continuous Counting Operation mode  Supports external pin capture for interval measurement  Supports external pin capture for timer counter reset 5.12 Pulse Width Modulation (PWM) Oct. 09 2018 Page 48 of 91 Rev 1.46 NUC970 5.12.1 Overview This chip has one PWM controller, and it has 4 independent PWM outputs, CH0~CH3, or as 2 complementary PWM pairs, (CH0, CH1), (CH2, CH3) with 2 programmable dead-zone generators. Each PWM pair has one Prescaler, one clock divider, two clock selectors, two 16-bit PWM counters, two 16-bit comparators, and one Dead-Zone generator. They are all driven by APB system clock (PCLK) in chip. Each PWM channel can be used as a timer and issue interrupt independently. Two channels PWM Timers in one pair share the same prescaler. The Clock divider provides each PWM channel with 5 divided clock sources (1, 1/2, 1/4, 1/8, 1/16). Each channel receives its own clock signal from clock divider which receives clock from 8-bit prescaler. The 16-bit down-counter in each channel receive clock signal from clock selector and can be used to handle one PWM period. The 16bit comparator compares PWM counter value with threshold value in register CMR (PWM_CMR[15:0]) loaded previously to generate PWM duty cycle. The clock signal from clock divider is called PWM clock. Dead-Zone generator utilize PWM clock as clock source. Once Dead-Zone generator is enabled, two outputs of the corresponding PWM channel pair will be replaced by the output of DeadZone generator. The Dead-Zone generator is used to control off-chip power device. To prevent PWM driving output pin with unsteady waveform, 16-bit down-counter and 16-bit comparator are implemented with double buffering feature. User can feel free to write data to counter buffer register and comparator buffer register without generating glitch. When 16-bit down-counter reaches zero, the interrupt request is generated to inform CPU that time is up. When counter reaches zero, if counter is set as periodic mode, it is reloaded automatically and start to generate next cycle. User can set PWM counter as one-shot mode instead of periodic mode. If counter is set as one-shot mode, counter will stop and generate one interrupt request when it reaches zero. The value of comparator is used for pulse width modulation. The counter control logic changes the output level when down-counter value matches the value of compare register. 5.12.2 Features 4 PWM channels with a 16-bit down counter and an interrupt each  2 complementary PWM pairs, (CH0, CH1), (CH2, CH3), with a programmable dead-zone generator each  Internal 8-bit prescaler and a clock divider for each PWM paired channel  Independent clock source selection for each PWM channel  Internal 16-bit down counter and 16-bit comparator for each independent PWM channel  PWM down-counter supports One-shot or Periodic mode 5.13 Watchdog Timer (WDT) 5.13.1 Overview The purpose of Watchdog Timer (WDT) is to perform a system reset when system runs into an unknown state. This prevents system from hanging for an infinite period of time. Besides, this Watchdog Timer supports the function to wake-up system from Idle/Power-down mode. 5.13.2 Features  18-bit free running up counter for WDT time-out interval  Selectable time-out interval (24 ~ 218) and the time-out interval is 0.48828125 ms ~ 8 s if WDT_CLK = 32.768 kHz  System kept in reset state for a period of (1 / WDT_CLK) * 63 Oct. 09 2018 Page 49 of 91 Rev 1.46 NUC970 SERIES DATASHEET  NUC970  Supports selectable WDT reset delay period, including 1026、130、18 or 3 WDT_CLK reset delay period  Supports to force WDT enabled after chip powered on or reset by setting WDTON in PWRON register  Supports WDT time-out wake-up function only if WDT clock source is selected as 32 kHz 5.14 Windowed Watchdog Timer (WWDT) 5.14.1 Overview The Window Watchdog Timer (WWDT) is used to perform a system reset within a specified window period to prevent software run to uncontrollable status by any unpredictable condition. 5.14.2 Features  6-bit down counter value (CNTDAT) and 6-bit compare value (CMPDAT) to make the WWDT time-out window period flexible.  Supports 4-bit value (PSCSEL) to programmable maximum 11-bit prescale counter period of WWDT counter. NUC970 SERIES DATASHEET Oct. 09 2018 Page 50 of 91 Rev 1.46 NUC970 5.15 Real Time Clock (RTC) 5.15.1 Overview The Real Time Clock (RTC) controller provides the real time clock and calendar information. The clock source of RTC controller is from an external 32.768 kHz low-speed crystal which connected at pins X32_IN and X32_OUT (refer to pin Description). The RTC controller provides the real time clock (hour, minute, second) in RTC_TIME (RTC Time Loading Register) as well as calendar information (year, month, day) in RTC_CAL (RTC Calendar Loading Register). It also offers RTC alarm function that user can preset the alarm time in RTC_TALM (RTC Time Alarm Register) and alarm calendar in RTC_CALM (RTC Calendar Alarm Register). The data format of RTC time and calendar message are all expressed in BCD (Binary Coded Decimal) format. The RTC controller supports periodic RTC Time Tick and Alarm Match interrupts. The periodic RTC Time Tick interrupt has 8 period interval options 1/128, 1/64, 1/32, 1/16, 1/8, 1/4, 1/2 and 1 second which are selected by RTC_TICK (RTC_TICK[2:0] Time Tick Register). When real time and calendar message in RTC_TIME and RTC_CAL are equal to alarm time and calendar settings in RTC_TALM and RTC_CALM, the ALMIF (RTC_INTSTS [0] RTC Alarm Interrupt Flag) is set to 1 and the RTC alarm interrupt signal is generated if the ALMIEN (RTC_INTEN [0] Alarm Interrupt Enable) is enabled. Both RTC Time Tick and Alarm Match interrupt signal can cause chip to wake-up from Idle or Powerdown mode if the corresponding interrupt enable bit (ALMIEN or TICKIEN) is set to 1 before chip enters Idle or Power-down mode. Real Time Clock (RTC) block can operate with independent power supply (RTC_VDD) while the system power is off. 5.15.2 Features Supports real time counter and calendar counter for RTC time and calendar check.  Supports time (hour, minute, second) and calendar (year, month, day) alarm and alarm mask settings.  Selectable 12-hour or 24-hour time scale.  Supports Leap Year indication.  Supports Day of the Week counter.  Supports frequency compensation mechanism for 32.768 kHz clock source.  All time and calendar message expressed in BCD format.  Supports periodic RTC Time Tick interrupt with 8 period interval options 1/128, 1/64, 1/32, 1/16, 1/8, 1/4, 1/2 and 1 second.  Supports RTC Time Tick and Alarm match interrupt.  Supports chip wake-up from Idle or Power-down mode while alarm or relative alarm interrupt is generated.  Supports 64 bytes spare registers to store user’s important information.  Supports power on/off control mechanism to control system core power. Oct. 09 2018 Page 51 of 91 Rev 1.46 NUC970 SERIES DATASHEET  NUC970 5.16 UART Interface Controller (UART) This chip equips up to eleven channels of Universal Asynchronous Receiver/Transmitters (UART). UART1/2/4/6/8/10 supports High-speed UART and UART0/3/5/7/9 perform Normal Speed UART, besides, all the UART channels support flow control function. The UART controller also supports IrDA (SIR), LIN Master/Slave and RS-485 function modes. 5.16.1 Overview The Universal Asynchronous Receiver/Transmitter (UART) performs a serial-to-parallel conversion on data received from the peripheral, and a parallel-to-serial conversion on data transmitted from the CPU. Each UART channel supports seven types of interrupts including (1). transmitter FIFO empty interrupt (INT_THRE), (2). receiver threshold level reaching interrupt (INT_RDA), (3). line status interrupt (parity error or framing error or break interrupt) (INT_RLS), (4). receiver buffer time-out interrupt (INT_TOUT), (5). MODEM/Wake-up status interrupt (INT_MODEM), (6). Buffer error interrupt (INT_BUF_ERR), and (7). LIN interrupt (INT_LIN). The UART1/ 2/ 4/ 6/ 8/ 10 is built-in with a 64-byte transmitter FIFO (TX_FIFO) and a 64-byte receiver FIFO (RX_FIFO) that reduces the number of interrupts presented to the CPU and the UART0/ 3/ 5/ 7/ 9 are equipped 16-byte transmitter FIFO (TX_FIFO) and 16-byte receiver FIFO (RX_FIFO). The CPU can read the status of the UART at any time during the operation. The reported status information includes the type and condition of the transfer operations being performed by the UART, as well as 4 error conditions (parity error, framing error, break interrupt and buffer error) probably occur while receiving data. The UART includes a programmable baud rate generator that is capable of dividing clock input by divisors to produce the serial clock that transmitter and receiver need. NUC970 SERIES DATASHEET All of the controllers support auto-flow control function that uses two low-level signals, /CTS (clear-tosend) and /RTS (request-to-send), to control the flow of data transfer between the UART and external devices (ex: Modem). When auto-flow is enabled, the UART is not allowed to receive data until the UART asserts /RTS to external device. When the number of bytes in the RX FIFO equals the value of RTS_TRI_LEV (UA_FCR [19:16]), the /RTS is de-asserted. The UART sends data out when UART controller detects /CTS is asserted from external device. If a valid asserted /CTS is not detected the UART controller will not send data out. The UART controllers also provides Serial IrDA (SIR, Serial Infrared) function (The IrDA mode is selected by setting the (FUN_SEL(UA_FUN_SEL[2:0]) = 010) to select IrDA function). The SIR specification defines a short-range infrared asynchronous serial transmission mode with one start bit, 8 data bits, and 1 stop bit. The maximum data rate is 115.2 Kbps (half duplex). The IrDA SIR block contains an IrDA SIR Protocol encoder/decoder. The IrDA SIR protocol is half-duplex only. So it cannot transmit and receive data at the same time. The IrDA SIR physical layer specifies a minimum 10ms transfer delay between transmission and reception. This delay feature must be implemented by software. The alternate function of UART controllers is LIN (Local Interconnect Network) function. The LIN mode is selected by setting the (FUN_SEL(UA_FUN_SEL[2:0]) = 001) to select LIN mode. In LIN mode, one start bit and 8-bit data format with 1-bit stop bit are required in accordance with the LIN standard. For the NUC970 series, another alternate function of UART controllers is RS-485 9-bit mode function, and direction control provided by RTS pin to implement the function by software. The RS-485 mode is selected by setting the (FUN_SEL(UA_FUN_SEL[2:0]) = 011) to select RS-485 function. The RS-485 driver control is implemented using the RTS control signal from an asynchronous serial port to enable the RS-485 driver. In RS-485 mode, many characteristics of the RX and TX are the same as UART. Oct. 09 2018 Page 52 of 91 Rev 1.46 NUC970 5.16.2 Features  Full duplex, asynchronous communications  Separate receive / transmit 64/16 bytes entry FIFO for data payloads  Supports hardware auto flow control/flow control function (CTS, RTS) and programmable RTS flow control trigger level  Programmable receiver buffer trigger level  Supports programmable baud-rate generator for each channel individually  Supports CTS wake-up function  Supports 8-bit receiver buffer time-out detection function  Programmable transmitting data delay time between the last stop and the next start bit by setting DLY(UA_TOR[15:8]) register  Supports break error, frame error, parity error and receive / transmit buffer overflow detect function  Fully programmable serial-interface characteristics  Programmable number of data bit, 5-, 6-, 7-, 8-bit character  Programmable parity bit, even, odd, no parity or stick parity bit generation and detection  Programmable stop bit, 1, 1.5, or 2 stop bit generation  Supports IrDA SIR function mode  Supports LIN function mode  Supports RS-485 function mode 5.17 Smart Card Host Interface (SC) The Smart Card Interface controller (SC controller) is based on ISO/IEC 7816-3 standard and fully compliant with PC/SC Specifications. It also provides status of card insertion/removal. 5.17.2 Features  ISO-7816-3 T = 0, T = 1 compliant  EMV2000 compliant  Up to two ISO-7816-3 ports  Separates receive/transmit 4 byte entry FIFO for data payloads  Programmable transmission clock frequency  Programmable receiver buffer trigger level  Programmable guard time selection (11 ETU ~ 267 ETU)  A 24-bit and two 8-bit timers for Answer to Request (ATR) and waiting times processing  Supports auto inverse convention function  Supports transmitter and receiver error retry and error number limiting function Oct. 09 2018 Page 53 of 91 Rev 1.46 NUC970 SERIES DATASHEET 5.17.1 Overview NUC970  Supports hardware activation sequence, hardware warm reset sequence and hardware deactivation sequence process  Supports hardware auto deactivation sequence when detected the card removal  Supports UART mode  Full duplex, asynchronous communications  Separates receiving / transmitting 4 bytes entry FIFO for data payloads  Supports programmable baud rate generator for each channel  Supports programmable receiver buffer trigger level  Programmable transmitting data delay time between the last stop bit leaving the TX-FIFO and the de-assertion by setting EGT (SC_EGT[7:0])  Programmable even, odd or no parity bit generation and detection  Programmable stop bit, 1- or 2- stop bit generation 5.18 I2C Synchronous Serial Interface Controller (I2C) 5.18.1 Overview I2C is a two-wire, bi-directional serial bus that provides a simple and efficient method of data exchange between devices. The I2C standard is a true multi-master bus including collision detection and arbitration that prevents data corruption if two or more masters attempt to control the bus simultaneously. Serial, 8-bit oriented bi-directional data transfers can be up to 100 KBit/s in Standard-mode, 400 KBit/s in the Fast-mode, or 3.4 Mbit/s in the High-speed mode. Only 100kbps and 400kbps modes are supported directly in this chip. NUC970 SERIES DATASHEET Data transfer is synchronized to SCL signal between a Master and a Slave with byte-by-byte basis. Each data byte is 8 bits long. There is one SCL clock pulse for each data bit with the MSB being transmitted first. An acknowledge bit follows each transferred byte. Each bit is sampled during the high period of SCL; therefore, the SDA line may be changed only during the low period of SCL and must be held stable during the high period of SCL. A transition on the SDA line while SCL is high is interpreted as a command (START or STOP). 5.18.2 Features  Compatible with Philips I2C standard, support master mode  Multi Master Operation.  Clock stretching and wait state generation.  Provide multi-byte transmit operation, up to 4 bytes can be transmitted in a single transfer  Software programmable acknowledge bit.  Arbitration lost interrupt, with automatic transfer cancellation.  Start/Stop/Repeated Start/Acknowledge generation.  Start/Stop/Repeated Start detection.  Bus busy detection.  Supports 7 bit addressing mode.  Fully static synchronous design with one clock domain. Oct. 09 2018 Page 54 of 91 Rev 1.46 NUC970  Software mode I2C. 5.19 SPI Interface Controller (SPI) 5.19.1 Overview The SPI is a synchronous serial interface performs a serial-to-parallel conversion on data characters received from the peripheral, and a parallel-to-serial conversion on data characters received from CPU. This interface can drive up to 2 external peripherals and is seen as the master. 5.19.2 Features  Support master mode  Full duplex synchronous serial data transfer  Variable length of transfer word up to 32 bits  Provide burst mode operation, transmit/receive can be executed up to four times in one transfer  MSB or LSB first data transfer  Rx and Tx on both rising or falling edge of serial clock independently  Support 2 slave/device select lines  Support dual IO and quad mode for SPI flash access 5.20 I2S Controller (I2S) 5.20.1 Overview The following are the property of the DMA.  When 16-bit precision, the DMA always 8-beat incrementing burst (FIFO_TH = 0) or 4-beat incrementing burst (FIFO_TH = 1).  When 24/20/18-bit precision, the DMA always 16-beat incrementing burst (FIFO_TH = 0) or 8-beat incrementing burst (FIFO_TH = 1).  Always bus lock when 4-beat or 8-beat or 16-beat incrementing burst.  When reach eighth, quarter, middle and end address of destination address, a DMA_IRQ is triggered to CPU automatically. An AHB master port and an AHB slave port are offered in I2S controller. 5.20.2 Features  Support I2S interface record and playback  Oct. 09 2018 Left/right channel Page 55 of 91 Rev 1.46 NUC970 SERIES DATASHEET The I2S controller consists of I2S and PCM protocols to interface with external audio CODEC. The I2S and PCM interface supports 8, 16, 18, 20 and 24-bit left/right precision in record and playback. When operating in 18/20/24-bit precision, each left/right-channel sample is stored in a 32-bit word. Each left/right-channel sample has 24/20/18 MSB bits of valid data and other LSB bits are the padding zeros. When operating in 16-bit precision, right-channel sample is stored in MSB of a 32-bit word and left-channel sample is stored in LSB of a 32-bit word. NUC970   8, 16, 20, 24-bit data precision  Mater and slave mode Support PCM interface record and playback  Two slots  8, 16, 20, 24-bit data precision  Master mode  Use DMA to playback and record data, with interrupt  Support two addresses for left/right channel data and different slots 5.21 Ethernet MAC Controller (EMAC) 5.21.1 Overview This chip provides 2 Ethernet MAC Controller (EMAC) for Network application. The Ethernet MAC controller consists of IEEE 802.3/Ethernet protocol engine with internal CAM function for recognizing Ethernet MAC addresses; Transmit-FIFO, Receive-FIFO, TX/RX state machine controller, time stamping engine for IEEE 1588, Magic Packet parsing engine and status controller. The EMAC supports RMII (Reduced MII) interface to connect with external Ethernet PHY. 5.21.2 Features NUC970 SERIES DATASHEET  Supports IEEE Std. 802.3 CSMA/CD protocol  Supports Ethernet frame time stamping for IEEE Std. 1588 – 2002 protocol  Supports both half and full duplex for 10 Mbps or 100 Mbps operation  Supports RMII interface  Supports MII Management function to control external Ethernet PHY  Supports pause and remote pause function for flow control  Supports long frame (more than 1518 bytes) and short frame (less than 64 bytes) reception  Supports 16 entries CAM function for Ethernet MAC address recognition  Supports Magic Packet recognition to wake system up from power-down mode  Supports 256 bytes transmit FIFO and 256 bytes receive FIFO  Supports DMA function 5.22 USB 2.0 Device Controller (USBD) 5.22.1 Overview The USB device controller interfaces the AHB bus and the UTMI bus. The USB controller contains both the AHB master interface and AHB slave interface. CPU programs the USB controller registers through the AHB slave interface. For IN or OUT transfer, the USB device controller needs to write data to memory or read data from memory through the AHB master interface. The USB device controller is complaint with USB 2.0 specification and it contains 12 configurable endpoints in addition to control Oct. 09 2018 Page 56 of 91 Rev 1.46 NUC970 endpoint. These endpoints could be configured to BULK, INTERRUPT or ISO. The USB device controller has a built-in DMA to relieve the load of CPU. 5.22.2 Features  USB Specification reversion 2.0 compliant  Supports 12 configurable endpoints in addition to Control Endpoint  Each of the endpoints can be Isochronous, Bulk or Interrupt and either IN or OUT direction  Three different operation modes of an in-endpoint － Auto Validation mode, Manual Validation mode, Fly mode  Supports DMA operation  4096 Bytes Configurable RAM used as endpoint buffer  Supports Endpoint Maximum Packet Size up to 1024 bytes 5.23 USB Host Controller (USBH) 5.23.1 Overview The Universal Serial Bus (USB) is a fast, bi-directional, isochronous, low-cost, dynamically attachable serial interface standard intended for modem, scanners, PDAs, keyboards, mice, and digital imaging devices. The USB is a 4-wire serial cable bus that supports serial data exchange between a Host Controller and a network of peripheral devices. The attached peripherals share USB bandwidth through a host-scheduled, token-based protocol. Peripherals may be attached, configured, used, and detached, while the host and other peripherals continue operation (i.e. hot plug and unplug is supported).  Fully compliant with USB Revision 2.0 specification.  Enhanced Host Controller Interface (EHCI) Revision 1.0 compatible.  Open Host Controller Interface (OHCI) Revision 1.0 compatible.  Supports high-speed (480Mbps), full-speed (12Mbps) and low-speed (1.5Mbps) USB devices.  Supports Control, Bulk, Interrupt, Isochronous and Split transfers.  Integrated a port routing logic to route full/low speed device to OHCI controller.  Built-in DMA for real-time data transfer. 5.24 Controller Area Network (CAN) 5.24.1 Overview The C_CAN consists of the CAN Core, Message RAM, Message Handler, Control Registers and Module Interface. The CAN Core performs communication according to the CAN protocol version 2.0 part A and B. The bit rate can be programmed to values up to 1MBit/s. For the connection to the physical layer, additional transceiver hardware is required. For communication on a CAN network, individual Message Objects are configured. The Message Oct. 09 2018 Page 57 of 91 Rev 1.46 NUC970 SERIES DATASHEET 5.23.2 Features NUC970 Objects and Identifier Masks for acceptance filtering of received messages are stored in the Message RAM. All functions concerning the handling of messages are implemented in the Message Handler. These functions include acceptance filtering, the transfer of messages between the CAN Core and the Message RAM, and the handling of transmission requests as well as the generation of the module interrupt. The register set of the C_CAN can be accessed directly by the software through the module interface. These registers are used to control/configure the CAN Core and the Message Handler and to access the Message RAM. 5.24.2 Features  Supports CAN protocol version 2.0 part A and B  Bit rates up to 1 MBit/s  32 Message Objects  Each Message Object has its own identifier mask  Programmable FIFO mode (concatenation of Message Objects)  Maskable interrupt  Disabled Automatic Re-transmission mode for Time Triggered CAN applications  Programmable loop-back mode for self-test operation  16-bit module interfaces to the AMBA APB bus  Supports wake-up function 5.25 Flash Memory Interface (FMI) 5.25.1 Overview NUC970 SERIES DATASHEET The Flash Memory Interface (FMI) of this Chip has DMA unit and FMI unit. The DMA unit provides a DMA (Direct Memory Access) function for FMI to exchange data between system memory (ex. SDRAM) and shared buffer (128 bytes), and the FMI unit control the interface of eMMC or NAND flash. The interface controller can support eMMC and NAND-type flash and the FMI is cooperated with DMAC to provide a fast data transfer between system memory and cards. 5.25.2 Features:  Support single DMA channel and address in non-word boundary.  Support hardware Scatter-Gather function.  Support 128Bytes shared buffer for data exchange between system memory and flash device. (Separate into two 64 bytes ping-pong FIFO).  Support eMMC Flash device.  Supports SLC and MLC NAND type Flash.  Adjustable NAND page sizes. (512B+spare area, 2048B+spare area, 4096B+spare area and 8192B+spare area).  Support up to 4bit/8bit/12bit/15bit/24bit hardware ECC calculation circuit to protect data communication. Oct. 09 2018 Page 58 of 91 Rev 1.46 NUC970  Support programmable NAND timing cycle. 5.26 Secure Digital Host Controller (SDH) 5.26.1 Overview The Secure-Digital Card Host Controller (SDH) equips DMAC unit and SD unit. The DMAC unit provides a DMA (Direct Memory Access) function for SD to exchange data between system memory and shared buffer (128 bytes), and the SD unit controls the interface of SD/SDHC/SDIO. The SDH controller supports SD/SDHC/SDIO card and cooperates with DMAC to provide a fast data transfer between system memory and cards. 5.26.2 Features  Supports single DMA channel  Supports hardware Scatter-Gather functionality.  Supports 128 Bytes shared buffer for data exchange between system memory and cards.  Supports SD, SDHC and SDIO card. NUC970 SERIES DATASHEET Oct. 09 2018 Page 59 of 91 Rev 1.46 NUC970 5.27 Cryptographic Accelerator (CRYPTO) 5.27.1 Overview The Crypto (Cryptographic Accelerator) includes a secure pseudo random number generator (PRNG) core and supports AES, DES/TDES, SHA and HMAC algorithms. The PRNG core supports 64 bits, 128 bits, 192 bits, and 256 bits random number generation. The AES accelerator is an implementation fully compliant with the AES (Advance Encryption Standard) encryption and decryption algorithm. The AES accelerator supports ECB, CBC, CFB, OFB, CTR, CBC-CS1, CBC-CS2, and CBC-CS3 mode. The DES/TDES accelerator is an implementation fully compliant with the DES and Triple DES encryption/decryption algorithm. The DES/TDES accelerator supports ECB, CBC, CFB, OFB, and CTR mode. The SHA accelerator is an implementation fully compliant with the SHA-160, SHA-224, SHA-256, SHA-384, and SHA-512 and corresponding HMAC algorithms. 5.27.2 Features  PRNG  Supports 64 bits, 128 bits , 192 bits, and 256 bits random number generation  Supports FIPS NIST 197  Supports SP800-38A and addendum  Supports 128, 192, and 256 bits key  Supports both encryption and decryption  Supports ECB, CBC, CFB, OFB , CTR, CBC-CS1, CBC-CS2, and CBC-CS3 mode  Supports key expander  Supports FIPS 46-3  Supports both encryption and decryption  Supports ECB, CBC, CFB, OFB, and CTR mode  Supports FIPS NIST 800-67  Implemented according to the X9.52 standard  Supports two keys or three keys mode  Supports both encryption and decryption  Supports ECB, CBC, CFB, OFB, and CTR mode  Supports FIPS NIST 180, 180-2  Supports SHA-160, SHA-224, SHA-256, SHA-384, and SHA-512  AES NUC970 SERIES DATASHEET  DES  TDES  SHA  HMAC Oct. 09 2018 Page 60 of 91 Rev 1.46 NUC970  Supports FIPS NIST 180, 180-2  Supports HMAC-SHA-160, HMAC-SHA-224, HMAC-SHA-256, HMAC-SHA-384, and HMAC-SHA-512 5.28 2D Graphic Engine (GE2D) 5.28.1 Overview A 32-bit 2D Graphics Engine (GE2D) is specially designed to improve the performance of graphic processing. It can accelerate the operation of individual GUI functions such as BitBLTs and Bresenham Line Draw to operate at all pixel depths including 8/16/32 bit-per-pixel. A pixel is the smallest addressable screen element as defined in Microsoft Windows, and lines and pictures are made up by a variety of pixels. GE2D is used to speed up graphic performance in pixel data moving and line drawing, as well as to accelerate almost all computer graphic Boolean operations by eliminating the CPU overhead. Meanwhile, the functions of rotation and scaling down are implemented for some special applications. In image scaling down function, both programmable horizontal and vertical N/M scaling down factors are provided for resizing the image. For the 2D rotation, it can rotate left or right 45, 90 or 180 degrees, and also supports the flip/flop, mirror or upside-down pictures. 5.28.2 Features Support 2D Bit Block Transfer (BitBLT) functions defined in Microsoft GDI  Support Host BLT  Support Pattern BLT  Support Color/Font Expanding BLT  Support Transparent BLT  Support Tile BLT  Support Block Move BLT  Support Copy File BLT  Support Color/Font Expansion  Support Rectangle Fill  Support RGB332/RGB565/RGB888 data format.  Support fore/background colors and all Microsoft 256 ternary raster-operation codes (ROP)  Support both inside and outside clipping function  Support alpha-blending for source/destination picture overlaying  Support fast Bresenham line drawing algorithm to draw solid/textured line  Support rectangular border and frame drawing  Support picture re-sizing  Support down-scaling from 1/255 to 254/255  Support up-scaling from 1 to 1.996 (1+254/255)  Support object rotation with different degree  Support L45 (45 degree left rotation) and L90 (90 degree left rotation) Oct. 09 2018 Page 61 of 91 Rev 1.46 NUC970 SERIES DATASHEET  NUC970  Support R45 (45 degree right rotation) and R90 (90 degree right rotation)  Support M180 (mirror/flop)  Support F180 (up-side-down (flip) and X180 (180 degree rotation) 5.29 JPEG Codec (JPEG) 5.29.1 Overview The JPEG Codec supports Baseline Sequential Mode JPEG still image compression and decompression that is fully compliant with ISO/IEC International Standard 10918-1 (T.81). The features and capability of the JPEG codec are listed below. 5.29.2 Features If image data input or output by planar format (PLANAR_ON (JITCR[15])= 1), the features are as following: NUC970 SERIES DATASHEET  Support to encode interleaved YCbCr 4:2:2/4:2:0 and gray-level (Y only) format image  Support to decode interleaved YCbCr 4:4:4/4:2:2/4:2:0/4:1:1 and gray-level (Y only) format image  Support to decode YCbCr 4:2:2 transpose format  The encoded JPEG bit-stream format is fully compatible with JFIF and EXIF standards  Support arbitrary width and height image encode and decode (up to 8192x8192)  Support three programmable quantization-tables  Support standard default Huffman-table and programmable Huffman-table for decode  Support arbitrarily 1X~8X image up-scaling function for encode mode  Support down-scaling function for encode and decode modes(Thumbnail/Primary)  Support specified window decode mode  Support quantization-table adjustment for bit-rate and quality control in encode mode  Support rotate function in encode mode If image data input or output by packet format (PLANAR_ON (JITCR[15])= 0), the feature are as following:  Support to encode interleaved YUYV format input image, output bitstream 4:2:2 and 4:2:0 format  Support to decode interleaved YCbCr 4:4:4/4:2:2/4:2:0 format image  Support decoded output image YUYV422, RGB555, RGB565, RGB888 format (ORDER= 1).  The encoded JPEG bit-stream format is fully compatible with JFIF and EXIF standards  Support arbitrary width and height image encode and decode(Primary Only)  Support three programmable quantization-tables  Support standard default Huffman-table and programmable Huffman-table for decode  Support arbitrarily 1X~8X image up-scaling function for encode mode  Support down-scaling function 1X~ 16X for Y422 and Y420, 1X~ 8X for Y444 for decode mode Oct. 09 2018 Page 62 of 91 Rev 1.46 NUC970  Support specified window decode mode  Support quantization-table adjustment for bit-rate and quality control in encode mode 5.30 LCD Display Interface Controller (LCM) 5.30.1 Overview The main purpose of Display Controller is used to display the video/image data to LCD device or connect with external TV-encoder. The video/image data source may come from the image sensor, JPEG decoder and the OSD pattern which have been stored in system memory (SDRAM). The input data format of the display controller can be packet YUV422, packet YUV444, packet RGB444, packet RGB565, packet RGB666, and packet RGB888. The OSD (On Screen Display) function supports packet YUV422 and 8/16/24-bit direct-color mode. The LCD controller supports both sync-type and MPU-type LCDM. This LCD Controller is a bus master and can transfer display data from system memory (SDRAM) without CPU intervention. 5.30.2 Features  Input data format  YUV422, YUV444  RGB444, RGB565, RGB666, RGB888  Output format  YUV422, YUV444  RGB444, RGB565, RGB666, RGB888  Input size: Maximum size 1024 * 768  Image resize Horizontal up-scaling 1~8X in fractional steps  Vertical up-scaling 1~8X in fractional steps  Convert full range YUV to CCIR601  Windowing support for three OSD graphic or text overlay  Support CCIR-656 (with header), CCIR-601(with hsync and vsync) 8/16-bit YUV data output format to connect with external TV encoder  Support both sync-type and MPU-type LCM (with v-sync or not)  Support the 8/9/16/18/24-bit data output to connect with 80/68 series MPU type LCM module The LCD Controller includes the following main functions：  Video post-processing  Display & overlay control  Video output control  Hardware cursor control 5.31 Capture Sensor Interface Controller (CAP) Oct. 09 2018 Page 63 of 91 Rev 1.46 NUC970 SERIES DATASHEET  NUC970 5.31.1 Overview The Image Capture Interface is designed to capture image data from a sensor. After capturing or fetching image data, it will process the image data, and then FIFO output them into frame buffer. 5.31.2 Feature  8-bit RGB565 sensor  8-bit YUV422 sensor  Supports CCIR601 YCbCr color range scale to full YUV color range  Supports 4 packaging format for packet data output: YUYV, Y only, RGB565, RGB555  Supports YUV422 planar data output  Supports the CROP function to crop input image to the required size for digital application.  Supports the down scaling function to scale input image to the required size for digital application.  Supports frame rate control  Supports field detection and even/odd field skip mechanism  Supports packet output dual buffer control through hardware buffer controller  Supports negative/sepia/posterization color effect  Supports two independent capture interfaces 5.32 Analog to Digital Converter (ADC) 5.32.1 Overview NUC970 SERIES DATASHEET The NUC9xx series contains one 12-bit Successive Approximation Register analog-to-digital converter (SAR A/D converter) with eight input channels. The A/D converter supports two operation modes: 4-wire or 5-wire mode. The ADC is especially suitable to act as touch screen controller. Battery voltage detection could be easily accomplished by the SAR ADC. It has keypad interrupt signal generator. 5.32.2 Features  Resolution: 12-bit resolution.  DNL: +/-1.5 LSB, INL: +/-3 LSB.  Dual Data Rates: 800KSPS/160KSPS.  Analog Input Range: VREF to AGND, could be rail-to-rail.  Analog Supply: 2.7-3.6V.  Digital Supply: 1.2V.  8 Single-Ended Analog inputs.  Compatible with 4-wire or 5-wire Touch Screen Interface.  Touch Pressure Measurement for 4-wire touch screen application.  Direct Battery Measurement.  Keypad Interrupt Generator. Oct. 09 2018 Page 64 of 91 Rev 1.46 NUC970  Auto Power Down.  Low Power Consumption: 4850uW(@1MSPS) / 2170uW(@200KSPS), < 1uA NUC970 SERIES DATASHEET Oct. 09 2018 Page 65 of 91 Rev 1.46 NUC970 6 ELECTRICAL CHARACTERISTICS 6.1 Absolute Maximum Ratings PARAMETER SYMBOL MIN. MAX UNIT -0.3 +1.26 V I/O DC Power Supply -0.3 +3.63 V DDR I/O DC Power Supply -0.3 +1.90 V VIO_VSS-0.3 +3.6 V 4 24 MHz VCORE_VDDVCORE_VSS Core DC Power Supply VIO_VDDVIO_VSS VDDR_VDDVDDR_VSS VIN 1/tCLCL Input Voltage Oscillator Frequency TA Operating Temperature -40 +85 C TST Storage Temperature -55 +150 C IDD Maximum Current into CORE_VDD - 200 mA ISS Maximum Current out of CORE_VSS - 200 mA Maximum Current sunk by a I/O pin - 20 mA Maximum Current sourced by a I/O pin - 30 mA Maximum Current sunk by total I/O pins - 200 mA Maximum Current sourced by total I/O pins - 200 mA IIO Note: Exposure to conditions beyond those listed under absolute maximum ratings may adversely affects the lift and reliability of the device. NUC970 SERIES DATASHEET Oct. 09 2018 Page 66 of 91 Rev 1.46 NUC970 6.2 DC Electrical Characteristics 6.2.1 NUC970 Series DC Electrical Characteristics (VDD-VSS=3.3 V, TA = 25C, FOSC = 12 MHz unless otherwise specified.) SPECIFICATION PARAMETER Core Operation voltage I/O Operation Voltage DDR I/O Operation Voltage Power Ground SYM. TEST CONDITIONS MIN. TYP. MAX. UNIT VCORE_VDD 1.14 1.2 1.26 V VIO_VDD 2.97 3.3 3.63 V VDDR_VDD 1.70 1.8 1.90 V VSS AVSS -0.3 V Analog Operating Voltage AVDD 2.97 Analog Reference Voltage Vref 0 Current Consumption of Current Consumption of Normal Operating Mode 2 Current Consumption of Deep Standby Mode Oct. 09 2018 3.63 V AVDD V ICORE_VDD1 185 mA IDDR_VDD1 50 mA IUSBPLL_VDD1 15 mA IUSB0_VDD1 35 mA IUSB1_VDD1 35 mA IRTC_VDD1 100 uA ICORE_VDD2 165 mA IDDR_VDD2 45 mA IUSBPLL_VDD2 15 mA IUSB0_VDD2 35 mA IUSB1_VDD2 35 mA IRTC_VDD2 100 uA ISTDBY_CORE_VDD 3 mA VCORE_VDD = 1.2V ISTDBY_DDR_VDD 6 mA VDDR_VDD = 1.8V ISTDBY_IO_VDD 5 A VIO_VDD = 3.3V ISTDBY_USB0_VDD 0 A VUSB0_VDD = 3.3V ISTDBY_USB1_VDD 0 A VUSB1_VDD = 3.3V ISTDBY_UPLL0_VDD 5 A VUSBPLL0_VDD = 1.2V Page 67 of 91 Frequency of CPUCLK/DDR_CLK is 300/150 MHz. The functionalities enabled are GE2D, LCD, JPEG, Cryptographic Engine, EMAC, USBD, USBH and UART. Frequency of CPUCLK/DDR_CLK is 264/132 MHz. The functionalities enabled are GE2D, LCD, JPEG, Cryptographic Engine, EMAC, USBD, USBH and UART. Rev 1.46 NUC970 SERIES DATASHEET Normal Operating Mode 1 3.3 NUC970 SPECIFICATION PARAMETER SYM. TEST CONDITIONS MIN. Current Consumption of Power Down Mode TYP. MAX. UNIT ISTDBY_UPLL1_VDD 5 A VUSBPLL1_VDD = 1.2V ISTDBY_AVDD 25 A VAVDD = 3.3V ISTDBY_RTC_VDD 100 A VRTC_VDD = 3.3V IPWD_RTC_VDD 10 uA VRTC_VDD = 3.3V Input Leakage Current PA, PB, PC, PD, PE, PF, PF, PH, PI, PJ Input Leakage Current with Pull-Down Resistor on PA, PB, PC, PD, PE, PF, PF, PH, PI, PJ Input Leakage Current with Pull-Up Resistor on PA, PB, PC, PD, PE, PF, PF, PH, PI, PJ VIO_VDD = 3.63V ILK1 -10 - 10 A ILK2 40 - 160 A VIN = VIO_VDD ILK3 -160 - 40 A VIN = 0 VIL1 - - 0.8 V VIH1 2.0 - - V VIL2 0.9 1.05 1.2 V VIH2 1.65 1.9 2.1 V VHY 0.75 0.85 0.9 V VILS 0.75 - 0.9 V VIHS 1.65 - 2.1 V ISR21 8 - 28 mA ISK1 8 - 18 mA 0V < VIN < 3.6V Input Low Voltage PA, PB, PC, PD, PE, PF, PF, PH, PI, PJ (TTL input) Input High Voltage PA, PB, PC, PD, PE, PF, PF, PH, PI, PJ (TTL input) Input Low Voltage NUC970 SERIES DATASHEET PA, PB, PC, PD, PE, PF, PF, PH, PI, PJ (Schmitt input) Input High Voltage PA, PB, PC, PD, PE, PF, PF, PH, PI, PJ (Schmitt input) Hysteresis voltage PA, PB, PC, PD, PE, PF, PF, PH, PI, PJ (Schmitt input) Negative going threshold (Schmitt input), nRESET Positive going threshold (Schmitt input), nRESET Source Current PA, PB, PC, PD, PE, PF, PH, PI, PJ (Push-pull Mode) Sink Current PA, PB, PC, PD, PE (Push-pull Mode) Oct. 09 2018 Page 68 of 91 Rev 1.46 NUC970 SPECIFICATION PARAMETER SYM. TEST CONDITIONS MIN. TYP. MAX. UNIT RPU 45 53 82 kΩ VIN = 0 RPD 37 49 91 kΩ VIN = VIO_VDD RRST 45 53 85 kΩ Input Pull-up Resistance PA, PB, PC, PD, PE, PF, PF, PH, PI, PJ, USB0_ID, SYS_nWAKEUP Input Pull-down Resistance PA, PB, PC, PD, PE, PF, PF, PH, PI, PJ Input Pull-up Resistance nRESET Note: 1. nRESET pin is a Schmitt trigger input. 2. Pins of PA, PB, PC, PD, PE, PF, PG, PH, PI and PJ can source a transition current when they are being externally driven from 1 to 0. In the condition of VDD=3.63 V, the transition current reaches its maximum value when VIN approximates to 1.5 V. NUC970 SERIES DATASHEET Oct. 09 2018 Page 69 of 91 Rev 1.46 NUC970 6.3 AC Electrical Characteristics 6.3.1 External 4~24 MHz High Speed Oscillator Symbol Parameter Min Typ Max Unit Test Condition tCHCX Clock High Time 20 - - ns - tCLCX Clock Low Time 20 - - ns - tCLCH Clock Rise Time - - 10 ns - tCHCL Clock Fall Time - - 10 ns - tCLCL tCLCH 0.7 VDD 90% tCLCX 10% 0.3 VDD tCHCL tCHCX Note: Duty cycle is 50%. Figure 66.3-1 External 4~24 MHz High Speed Oscillator Timing Diagram NUC970 SERIES DATASHEET Oct. 09 2018 Page 70 of 91 Rev 1.46 NUC970 6.3.2 External 4~24 MHz High Speed Crystal Symbol V XT TA f XT Parameter Min. Typ. Max Unit Test Conditions Operation Voltage 2.97 3.3 3.63 V - Temperature -40 - 85 C - Clock Frequency 4 - 24 MHz - 6.3.2.1 Typical Crystal Application Circuits Crystal ESR (ohm) C1, C2 4M ~ 8M < 100 20 pf 8M ~ 18M < 50 14 pf 18 MHz ~ 24 MHz < 30 8 pf XT1_IN XT1_OUT 4~24 MHz Crystal C1 C2 Vss Vss NUC970 SERIES DATASHEET Figure 6.3-2 Typical HXT Crystal Application Circuit Oct. 09 2018 Page 71 of 91 Rev 1.46 NUC970 6.3.3 External 32.768 kHz Low Speed Crystal Symbol Parameter Min. Typ. Max Unit Test Conditions VLXT Operation Voltage 2.97 3.3 3.63 V - TA Temperature -40 - 85 C - fLXT Clock Frequency - 32.768 - kHz - 6.3.3.1 Typical Crystal Application Circuits Crystal C1 C2 32.768 kHz 20pf 20pf X32_IN X32_OUT Crystal C1 C2 Vss Vss Figure 6.3-3 Typical LXT Crystal Application Circuit NUC970 SERIES DATASHEET Oct. 09 2018 Page 72 of 91 Rev 1.46 NUC970 6.3.4 EBI Timing Symbol Parameter Min Typ Max Unit Test Condition TtACS Address Setup Time to EBI_nCS Falling Edge 0 - 7 T CLK - TtCOS EBI_nCS Setup Time to EBI_nWE or EBI_nOE Falling Edge 0 - 7 T CLK - TtACC EBI_nWE or EBI_nOE Active Low Time 1 - 23 T CLK - TtCO EBI_nCS old Time from EBI_nWE or EBI_nOE Rising Edge 0 - 7 T CLK - TSU_EBI_RD EBI_DATA Read Setup Time to EBI_nOE Rising Edge 1 - - T CLK - Note: THCLK is the period of EBI’s operating clock. EBI_ADDR[9:0] TtACS EBI_nCS[4:0] TtCOS EBI_nWE, EBI_nBE[1:0] TtCOH TtACC+2 NUC970 SERIES DATASHEET EBI_DATA[15:0 (Write)] Valid Data TtCOS EBI_nOE TtCOH TtACC+2 TSU_EBI_RD EBI_DATA[15:0 (Write)] Valid Data Figure 6.3-4 External Bus Interface Timing Diagram Oct. 09 2018 Page 73 of 91 Rev 1.46 NUC970 6.3.5 I2C Interface Timing 100K Symbol 400K Parameter Min Max Min Max Unit Test Condition TLOW I2C_SCL Low Period 4.7 - 1.2 - us - T I2C_SCL igh Period 4 - 0.6 - us - TSU_STA Repeated START Condition Setup Time 4.7 - 1.2 - us - T START Condition old Time 4 - 0.6 - us - TSU_STO STOP Condition Setup Time 4 - 0.6 - us - TBUF Bus Free Time 4.7 - 1.2 - us - TSU_DAT Data Setup Time 2 - 0.3 - us - T Data old Time 0 4.2 0 0.8 us - TR I2C_SCL/I2C_SDA Rise Time - 1000 20+0.1Cb 300 ns - TF I2C_SCL/I2C_SDA Fall Time - 300 - 300 ns - Cb Capacitive Load for Each Bus Line - 400 - 400 pF - IG D_STA D_DAT STOP Repeated START START STOP I2C_SDA TBUF TLOW NUC970 SERIES DATASHEET TR I2C_SCL THD_STA TF THIGH THD_DAT TSU_DAT TSU_STA TSU_STO Figure 6.3-5 I2C Interface Timing Diagram Oct. 09 2018 Page 74 of 91 Rev 1.46 NUC970 6.3.6 SPI Interface Timing Symbol Parameter Min Typ Max Unit Test Condition TP_SPI_CLK SPI_CLK Period 56 - - ns - igh Time 28 - - ns - TL_SPI_CLK SPI_CLK Low Time 28 - - ns - TSU_SPI_DI SPI_DI or SPI_DATA[3:0] Setup Time to SPI_CLK Active Edge 11 - - ns - T SPI_DI or SPI_DATA[3:0] old Time from SPI_CLK Active Edge 1 - - ns - TDLY_SPI_DO SPI_CLK Active Edge to Valid SPI_DO or SPI_DATA[3:0] Delay - - 4 ns - T SPI_DO or SPI_DATA[3:0] old Time from SPI_CLK Active Edge 0.2 T SPI_CLK _SPI_CLK D_SPI_DI D_SPI_DO ns TP_SPI_CLK TL_SPI_CLK TH_SPI_CLK SPIx_CLK TL_SPI_CLK TH_SPI_CLK NUC970 SERIES DATASHEET SPIx_DI SPIx_DATA[3:0] TSU_SPI_DI THD_SPI_DI SPIx_DO SPIx_DATA[3:0] TDLY_SPI_DO THD_SPI_DO Figure 6.3-6 SPI Interface Timing Diagram Oct. 09 2018 Page 75 of 91 Rev 1.46 NUC970 6.3.7 I2S Interface Timing Symbol Parameter Min Typ Max Unit Test Condition TP_I2S_BITCLK I2S_BITCLK Period 50 - - ns - igh Time 25 - - ns - TL_I2S_BITCLK I2S_BITCLK Low Time 25 - - ns - TDLY_I2S_DO I2S_BITCLK Rising to Valid I2S_WS or I2S_DATAO Delay - - 6 ns - I2S_WS or I2S_DATAO old Time from I2S_BITCLK Rising 1 - - ns I2S_DATAI Setup Time to I2S_BITCLK Rising 5 - - ns - I2S_DATAI old Time from I2S_BITCLK Rising 3 - - ns - T I2S_BITCLK _I2S_BITCLK T D_I2S_DO TSU_I2S_DI T D_I2S_DI TP_I2S_BITCLK TL_I2S_BITCLK TH_I2S_BITCLK I2S_BITCLK I2S_DATAI TSU_I2S_DI NUC970 SERIES DATASHEET THD_I2S_DI I2S_WS I2S_DATAO TDLY_I2S_DO THD_I2S_DO Figure 6.3-7 I2S Interface Timing Diagram Oct. 09 2018 Page 76 of 91 Rev 1.46 NUC970 6.3.8 Ethernet Interface Timing 6.3.8.1 RMII Interface Timing Symbol TP_R T II_REFCLK Min Typ Max Unit Test Condition R II_REFCLK Period - 20.0 +/- 50 ppm - ns - igh Time 8.0 10.0 12.0 ns - RMII_REFCLK Low Time 8.0 10.0 12.0 ns - R II_REFCLK _R II_REFCLK TL_R Parameter II_REFCLK TDLY_R II_TX R II_REFCLK Rising to Valid R II_TXEN, R II_TXDATA0 and R II_TXDATA1 Delay - - 10 ns - TSU_R II_RX R II_CRSDV, R II_RXDATA0 and R II_RXDATA1 Setup Time to R II_REFCLK Rising 5 - - ns - R II_CRSDV, R II_RXDATA0 and R II_RXDATA1 old Time from R II_REFCLK Rising 2 - - ns - T D_R II_RX TP_RMII_REFCLK TH_RMII_REFCLK TL_RMII_REFCLK RMIIx_REFCLK RMIIx_TXEN RMIIx_TXDATA0 RMIIx_TXDATA1 NUC970 SERIES DATASHEET TDLY_RMII_TX RMIIx_CRSDV RMIIx_RXDATA0 RMIIx_RXDATA1 TSU_RMII_RX THD_RMII_RX Figure 6.3-8 RMII Interface Timing Diagram Oct. 09 2018 Page 77 of 91 Rev 1.46 NUC970 6.3.8.2 Ethernet PHY Management Interface Timing Symbol TP_R T II_ DC Min Typ Max Unit Test Condition R II_ DC Period 400 - - ns - igh Time 200 - - ns - RMII_MDC Low Time 200 - - ns - R II_ DC _R II_ DC TL_R Parameter II_ DC TDLY_R II_ DIOWR R II_ DC Falling to Valid R II_ DIO Delay - - 10 ns - TSU_R II_ DIORD R II_ DIO Setup Time to R II_ DC Rising 10 - - ns - R II_ DIO old Time from R II_ DC Rising 10 - - ns - T D_R II_ DIORD TP_RMII_MDC TH_RMII_MDC TL_RMII_MDC RMIIx_MDC RMIIx_MDIO (Write) TDLY_RMII_MDIOWR RMIIx_MDIO (Read) NUC970 SERIES DATASHEET TSU_RMII_MDIORD THD_RMII_MDIORD Figure 6.3-9 Ethernet PHY Management Interface Timing Diagram Oct. 09 2018 Page 78 of 91 Rev 1.46 NUC970 6.3.9 NAND Interface Timing Symbol Min Typ igh Time - 15 1 TL_NAND_nWE NAND_nWE Low Time - 45 2 TDLY_DATA_OUT NAND_nWE Falling to Valid NAND_DATA Delay - 15 - T NAND_DATA old Time from NAND_nWE Rising 7.5 NAND_DATA Setup Time to NAND_nRE Rising 15 NAND_DATA old Time from NAND_nRE Rising 7.5 T NAND_nWE _NAND_nWE D_DATA_OUT TSU_DATA_IN T Parameter D_DATA_IN Max Unit Test Condition - ns - - ns - ns - 3 3 3 3 - - Ns - - - ns - - - ns - Note 1: NAND controller operating clock is 132 MHz and HI_WID (FMI_NANDTMCTL[15:8]) is 0x1. Note 2: NAND controller operating clock is 132 MHz and LO_WID (FMI_NANDTMCTL[7:0]) is 0x5. Note 2: NAND controller operating clock is 132 MHz NAND_nCS0 NAND_nCS1 NAND_ALE NAND_CLE NAND_nWE TL_NAND_nWE TH_NAND_nWE NUC970 SERIES DATASHEET THD_DATA_OUT TDLY_DATA_OUT NAND_DATA[7:0] (Write) NAND_nRE THD_DATA_IN TSU_DATA_IN NAND_DATA[7:0] (Read) Figure 6.3-10 NAND Interface Timing Diagram Oct. 09 2018 Page 79 of 91 Rev 1.46 NUC970 6.3.10 SD Interface Timing 6.3.10.1 Default Mode Timing Symbol Parameter Max Unit Test Condition 40 - - ns - 2,500 - - ns igh Time - 20 - ns - SD_CLK Low Time - 20 - ns - 5 - - ns - 5 - - ns - - - 14 ns - (Data Transfer ode) SD_CLK Period TP_SD_CLK_ID (Identification SD_CLK _SD_CLK TL_SD_CLK ode) SD_DATA Setup Time to TSU_SD_IN T Typ SD_CLK Period TP_SD_CLK T Min SD_CLK Rising SD_DATA old Time from SD_CLK Rising D_SD_IN SD_CLK Falling to TDLY_SD_OUT Valid SD_DATA Delay TP_SD_CLK TL_SD_CLK TH_SD_CLK SDx_CLK NUC970 SERIES DATASHEET SDx_CMD SDx_DATA[3:0] (Input Mode) TSU_SD_IN THD_SD_IN SDx_CMD SDx_DATA[3:0] (Output Mode) TDLY_SD_OUT Figure 6.3-11 SD Interface Default Mode Timing Diagram Oct. 09 2018 Page 80 of 91 Rev 1.46 NUC970 6.3.10.2 High-Speed Mode Timing Symbol Parameter Min Typ Max Unit Test Condition TP_SD_CLK SD_CLK Period 20 - - ns - igh Time 7 - - ns - SD_CLK Low Time 7 - - ns - 6 - - ns - 2 - - ns - - - 14 ns - 2.5 - - ns - T SD_CLK _SD_CLK TL_SD_CLK SD_DATA Setup Time to TSU_SD_IN T SD_CLK Rising SD_DATA old Time from SD_CLK Rising D_SD_IN SD_CLK Falling to TDLY_SD_OUT T Valid SD_DATA Delay SD_DATA old Time from SD_CLK Rising D_SD_OUT TP_SD_CLK TL_SD_CLK TH_SD_CLK SDx_CLK SDx_CMD SDx_DATA[3:0] (Input Mode) TSU_SD_IN NUC970 SERIES DATASHEET THD_SD_IN SDx_CMD SDx_DATA[3:0] (Output Mode) TDLY_SD_OUT THD_SD_OUT Figure 6.3-12 SD Interface High-Speed Mode Timing Diagram Oct. 09 2018 Page 81 of 91 Rev 1.46 NUC970 6.3.11 LCD Display Interface Timing 6.3.11.1 SYNC Type Timing Symbol Parameter Min Typ Max Unit Test Condition TP_LCD_CLK LCD_CLK Period 13 - - ns - igh Time 6.5 - - ns - TL_LCD_CLK LCD_CLK Low Time 6.5 - - ns - TDLY_LCD_OUT LCD_CLK Rising to Valid LCD_ SYNC, LCD_VSYNC, LCD_DEN and LCD_DATA Delay - - 6 ns - T LCD_ SYNC, LCD_VSYNC, LCD_DEN and LCD_DATA old Time from LCD_CLK Rising 1 - - ns - T LCD_CLK _LCD_CLK D_LCD_OUT TP_LCD_CLK TL_LCD_CLK TH_LCD_CLK LCD_CLK LCD_HSYNC LCD_VSYNC LCD_DEN LCD_DATA TDLY_LCD_OUT THD_LCD_OUT Figure 6.3-13 LCD Display Interface SYNC Type Timing Diagram NUC970 SERIES DATASHEET Oct. 09 2018 Page 82 of 91 Rev 1.46 NUC970 6.3.12 Capture Sensor Interface Timing Symbol Parameter Min Typ Max Unit Test Condition TP_VCAP_PCLK VCAP_PCLK Period 20 - - ns - igh Time - 10.0 - ns - TL_VCAP_PCLK VCAP_PCLK Low Time - 10.0 - ns - TSU_VCAP_IN VCAP_ SYNC, VCAP_VSYNC, VCAP_FIELD and VCAP_DATA Setup Time to VCAP_PCLK Rising 4 - - ns - VCAP_ SYNC, VCAP_VSYNC, VCAP_FIELD and VCAP_DATA old Time from VCAP_PCLK Rising 1 - - ns - T T VCAP_PCLK _VCAP_PCLK D_VCAP_IN TP_VCAP_PCLK TH_VCAP_PCLK TL_VCAP_PCLK VCAP_PCLK VCAP_HSYNC VCAP_VSYNC VCAP_FIELD VCAP_DATA TSU_VCAP_IN THD_VCAP_IN Figure 6.3-14 Capture Sensor Interface Timing Diagram NUC970 SERIES DATASHEET Oct. 09 2018 Page 83 of 91 Rev 1.46 NUC970 6.4 Analog Characteristics 6.4.1 12-bit SARADC Symbol Parameter Min. Typ. Max. Unit Test Conditions - Resolution - 12 - Bit DNL Differential Nonlinearity Error - ±1 - LSB VREF is external AVREF pin INL Integral Nonlinearity Error - -1.2 - LSB VREF is external AVREF pin EO Offset Error - +3.7 - LSB VREF is external AVREF pin EG Gain Error (Transfer Gain) - -6.6 - LSB VREF is external AVREF pin EA Absolute Error - 4.2 - LSB VREF is external AVREF pin - Monotonic FADC ADC Clock Frequency - - 16 MHz TCAL Calibration Time - 3 - Clock TS Sample Time - 17 - Clock TADC Conversion Time - 20 Guaranteed Clock 800 [1] NUC970 SERIES DATASHEET FS Sample Rate - - VAVDD Supply Voltage 2.7 3.3 IDDA1 Supply Current (Avg.) - 1.2 mA ADC channel 1 high speed mode IDDA2 Supply Current (Avg.) - 1.0 mA ADC channel 1 low speed mode IDDA3 Supply Current (Avg.) - 0.4 mA ILK Leakage Current - 0.1 - uA VREF Reference Voltage 2 - VAVDD V VIN Analog Input Voltage 0 - VREF V RIN Analog Input Impedance - - 2 MΩ CIN Capacitance - 25.6 3.6 k SPS V pF Note: 1. ADC channel 1 supports sample rate higher than 160k SPS. Other ADC channels support sampel rate up to 160k SPS. Oct. 09 2018 Page 84 of 91 Rev 1.46 NUC970 6.4.2 Low Voltage Detection (LVD) and Low Voltage Reset (LVR) Symbol Parameter Min. Typ. Max Unit VDD Operation Voltage 2.0 3.3 3.63 V - IDD Operating Current uA - ILK Quiescent Current - 0.1 0.5 uA TA Temperature -40 - 85 C - 2.295 2.55 2.805 V LVD_SEL (SYS_LVRDCR[9]) = 0 2.475 2.75 3.025 V LVD_SEL (SYS_LVRDCR[9]) = 1 2.115 2.35 2.585 V - 0.045 0.05 0.055 V LVD_SEL (SYS_LVRDCR[9]) = 0 0.045 0.05 0.055 V LVD_SEL (SYS_LVRDCR[9]) = 1 0.045 0.05 0.055 V - VT VT V V _LVD _LVR Y_LVD Y_LVR 21 Test Conditions LVR_EN (SYS_LVRDCR[0]) = 0, LVD_EN (SYS_LVRDCR[8]) = 0 LVD Threshold Voltage LVR Threshold Voltage LVD Hysteresis LVR Hysteresis NUC970 SERIES DATASHEET Oct. 09 2018 Page 85 of 91 Rev 1.46 NUC970 6.4.3 3.3V Power-On Reset (POR33) Symbol Parameter Min Typ Max Unit Test Condition TA Temperature -40 25 125 C - VPOR Reset Voltage - 1.83 - V AVDD rising from 0V to 3.3V IPOR33 Quiescent current - 5 - nA Vin > reset voltage 6.4.4 1.2V Power-On Reset (POR12) Symbol Parameter Min Typ Max Unit Test Condition TA Temperature -40 25 125 C - VPOR Reset Voltage - 0.76 - V CORE_VDD rising from 0V to 1.2V IPOR12 Quiescent current - 10 - nA Vin > reset voltage 6.4.5 USB 2.0 PHY 6.4.5.1 Low/Full-Speed DC Electrical Specifications Symbol Parameter Min Typ Max Unit Test Condition VOL Output Low (Driven) - - 0.3 V 1.5K RPU on DP to 3.6v VO Output 2.8 - - V 15K RPD on DP, D GND igh (Driven) NUC970 SERIES DATASHEET VDI Differential Input Sensitivity 0.2 - - V VC Differential Common- ode Range 0.8 - 2.5 V VIL Single-Ended Input Low - - 0.8 V - VI Single-Ended Input 2.0 - - V - igh RPU Pull-Up Resistor 1.35 1.5 1.65 kΩ RPD_DP D+ Pull-Down Resistor 13.5 15 16.5 kΩ RPD_D D- Pull-Down Resistor 13.5 15 16.5 kΩ ZDRV Driver Output Resistance 28 - 44 Ω to |VUSB0_DP–VUSB0_D | Steady state drive [1] Note: 1. Driver output resistance doesn’t include series resistor resistance. 6.4.5.2 High-Speed DC Electrical Specifications Symbol V SDI Oct. 09 2018 Parameter igh Speed Differential Input Signal Level Min Typ Max Unit Test Condition 150 - - mV |VUSB0_DP–VUSB0_D | Page 86 of 91 Rev 1.46 NUC970 V SQ igh Speed Squelch Detection Threshold igh Speed Common Voltage Range ode 100 125 150 mV -50 - 500 mV V SC V SO igh Speed Data Signaling igh 300 400 440 mV V SOL igh Speed Data Signaling Low -10 0 10 mV VC IRPJ Chirp J Level 700 - 1100 mV VC IRPK Chirp K Level -900 - -500 mV 40.5 45 49.5 Ω R SDRV igh Speed Driver Output Resistance |VUSB0_DP–VUSB0_D | 6.4.5.3 USB Low-Speed Driver AC Electrical Characteristics Symbol Parameter Min Typ Max Unit Test Condition TLRISE Rise Time 75 - 300 ns CL=200pF, 10% to 90% of |VO -VOL| TLFALL Fall Time 75 - 300 ns CL=200pF, 10% to 90% of |VO -VOL| VLCR Crossover Voltage 1.3 - 2.0 V Excluding the first transition from idle state 6.4.5.4 USB Full-Speed Driver AC Electrical Characteristics Parameter Min Typ Max Unit Test Condition VFRISE Rise Time 4 - 20 ns CL=50pF, 10% to 90% of |VO -VOL| VFFALL Fall Time 4 - 20 ns CL=50pF, 10% to 90% of |VO -VOL| VFCR Crossover Voltage 1.3 - 2.0 V Excluding the first transition from idle state 6.4.5.5 USB High-Speed Driver AC Electrical Characteristics Symbol Parameter Min Typ Max Unit Test Condition V RISE igh Speed Driver Rise Time 500 - 900 ps CL