ZHCSII2E August   2016  – May 2019 DRA790 , DRA791 , DRA793 , DRA797

PRODUCTION DATA.  

  1. 1器件概述
    1. 1.1 特性
    2. 1.2 应用
    3. 1.3 说明
    4. 1.4 功能方框图
  2. 2修订历史记录
  3. 3Device Comparison
    1. 3.1 Related Products
  4. 4Terminal Configuration and Functions
    1. 4.1 Pin Diagram
    2. 4.2 Pin Attributes
    3. 4.3 Signal Descriptions
      1. 4.3.1  VIP
      2. 4.3.2  DSS
      3. 4.3.3  HDMI
      4. 4.3.4  CSI2
      5. 4.3.5  EMIF
      6. 4.3.6  GPMC
      7. 4.3.7  Timers
      8. 4.3.8  I2C
      9. 4.3.9  HDQ1W
      10. 4.3.10 UART
      11. 4.3.11 McSPI
      12. 4.3.12 QSPI
      13. 4.3.13 McASP
      14. 4.3.14 USB
      15. 4.3.15 PCIe
      16. 4.3.16 DCAN
      17. 4.3.17 GMAC_SW
      18. 4.3.18 MLB
      19. 4.3.19 eMMC/SD/SDIO
      20. 4.3.20 GPIO
      21. 4.3.21 KBD
      22. 4.3.22 PWM
      23. 4.3.23 PRU-ICSS
      24. 4.3.24 ATL
      25. 4.3.25 Emulation and Debug Subsystem
      26. 4.3.26 System and Miscellaneous
        1. 4.3.26.1 Sysboot
        2. 4.3.26.2 Power, Reset, and Clock Management (PRCM)
        3. 4.3.26.3 System Direct Memory Access (SDMA)
        4. 4.3.26.4 Interrupt Controllers (INTC)
      27. 4.3.27 Power Supplies
    4. 4.4 Pin Multiplexing
    5. 4.5 Connections for Unused Pins
  5. 5Specifications
    1. 5.1  Absolute Maximum Ratings
    2. 5.2  ESD Ratings
    3. 5.3  Power on Hour (POH) Limits
    4. 5.4  Recommended Operating Conditions
    5. 5.5  Operating Performance Points
      1. 5.5.1 AVS and ABB Requirements
      2. 5.5.2 Voltage And Core Clock Specifications
      3. 5.5.3 Maximum Supported Frequency
    6. 5.6  Power Consumption Summary
    7. 5.7  Electrical Characteristics
      1. Table 5-6  LVCMOS DDR DC Electrical Characteristics
      2. Table 5-7  Dual Voltage LVCMOS I2C DC Electrical Characteristics
      3. Table 5-8  IQ1833 Buffers DC Electrical Characteristics
      4. Table 5-9  IHHV1833 Buffers DC Electrical Characteristics
      5. Table 5-10 LVCMOS CSI2 DC Electrical Characteristics
      6. Table 5-11 BMLB18 Buffers DC Electrical Characteristics
      7. Table 5-12 Dual Voltage SDIO1833 DC Electrical Characteristics
      8. Table 5-13 Dual Voltage LVCMOS DC Electrical Characteristics
      9. 5.7.1      USBPHY DC Electrical Characteristics
      10. 5.7.2      HDMIPHY DC Electrical Characteristics
      11. 5.7.3      PCIEPHY DC Electrical Characteristics
    8. 5.8  VPP Specifications for One-Time Programmable (OTP) eFuses
      1. Table 5-14 Recommended Operating Conditions for OTP eFuse Programming
      2. 5.8.1      Hardware Requirements
      3. 5.8.2      Programming Sequence
      4. 5.8.3      Impact to Your Hardware Warranty
    9. 5.9  Thermal Resistance Characteristics for CBD Package
      1. 5.9.1 Package Thermal Characteristics
    10. 5.10 Timing Requirements and Switching Characteristics
      1. 5.10.1 Timing Parameters and Information
        1. 5.10.1.1 Parameter Information
          1. 5.10.1.1.1 1.8 V and 3.3 V Signal Transition Levels
          2. 5.10.1.1.2 1.8 V and 3.3 V Signal Transition Rates
          3. 5.10.1.1.3 Timing Parameters and Board Routing Analysis
      2. 5.10.2 Interface Clock Specifications
        1. 5.10.2.1 Interface Clock Terminology
        2. 5.10.2.2 Interface Clock Frequency
      3. 5.10.3 Power Supply Sequences
      4. 5.10.4 Clock Specifications
        1. 5.10.4.1 Input Clocks / Oscillators
          1. 5.10.4.1.1 OSC0 External Crystal
          2. 5.10.4.1.2 OSC0 Input Clock
          3. 5.10.4.1.3 Auxiliary Oscillator OSC1 Input Clock
            1. 5.10.4.1.3.1 OSC1 External Crystal
            2. 5.10.4.1.3.2 OSC1 Input Clock
          4. 5.10.4.1.4 RC On-die Oscillator Clock
        2. 5.10.4.2 Output Clocks
        3. 5.10.4.3 DPLLs, DLLs
          1. 5.10.4.3.1 DPLL Characteristics
          2. 5.10.4.3.2 DLL Characteristics
          3. 5.10.4.3.3 DPLL and DLL Noise Isolation
      5. 5.10.5 Recommended Clock and Control Signal Transition Behavior
      6. 5.10.6 Peripherals
        1. 5.10.6.1  Timing Test Conditions
        2. 5.10.6.2  Virtual and Manual I/O Timing Modes
        3. 5.10.6.3  VIP
        4. 5.10.6.4  DSS
        5. 5.10.6.5  HDMI
        6. 5.10.6.6  CSI2
          1. 5.10.6.6.1 CSI-2 MIPI D-PHY
        7. 5.10.6.7  EMIF
        8. 5.10.6.8  GPMC
          1. 5.10.6.8.1 GPMC/NOR Flash Interface Synchronous Timing
          2. 5.10.6.8.2 GPMC/NOR Flash Interface Asynchronous Timing
          3. 5.10.6.8.3 GPMC/NAND Flash Interface Asynchronous Timing
        9. 5.10.6.9  Timers
        10. 5.10.6.10 I2C
          1. Table 5-56 Timing Requirements for I2C Input Timings
          2. Table 5-57 Timing Requirements for I2C HS-Mode (I2C3/4/5/6 Only)
          3. Table 5-58 Switching Characteristics Over Recommended Operating Conditions for I2C Output Timings
        11. 5.10.6.11 HDQ1W
          1. 5.10.6.11.1 HDQ / 1-Wire — HDQ Mode
          2. 5.10.6.11.2 HDQ/1-Wire—1-Wire Mode
        12. 5.10.6.12 UART
          1. Table 5-63 Timing Requirements for UART
          2. Table 5-64 Switching Characteristics Over Recommended Operating Conditions for UART
        13. 5.10.6.13 McSPI
        14. 5.10.6.14 QSPI
        15. 5.10.6.15 McASP
          1. Table 5-71 Timing Requirements for McASP1
          2. Table 5-72 Timing Requirements for McASP2
          3. Table 5-73 Timing Requirements for McASP3/4/5/6/7/8
        16. 5.10.6.16 USB
          1. 5.10.6.16.1 USB1 DRD PHY
          2. 5.10.6.16.2 USB2 PHY
          3. 5.10.6.16.3 USB3 DRD ULPI—SDR—Slave Mode—12-pin Mode
        17. 5.10.6.17 PCIe
        18. 5.10.6.18 DCAN
          1. Table 5-91 Timing Requirements for DCANx Receive
          2. Table 5-92 Switching Characteristics Over Recommended Operating Conditions for DCANx Transmit
        19. 5.10.6.19 GMAC_SW
          1. 5.10.6.19.1 GMAC MII Timings
            1. Table 5-93 Timing Requirements for miin_rxclk - MII Operation
            2. Table 5-94 Timing Requirements for miin_txclk - MII Operation
            3. Table 5-95 Timing Requirements for GMAC MIIn Receive 10/100 Mbit/s
            4. Table 5-96 Switching Characteristics Over Recommended Operating Conditions for GMAC MIIn Transmit 10/100 Mbits/s
          2. 5.10.6.19.2 GMAC MDIO Interface Timings
          3. 5.10.6.19.3 GMAC RMII Timings
            1. Table 5-101 Timing Requirements for GMAC REF_CLK - RMII Operation
            2. Table 5-102 Timing Requirements for GMAC RMIIn Receive
            3. Table 5-103 Switching Characteristics Over Recommended Operating Conditions for GMAC REF_CLK - RMII Operation
            4. Table 5-104 Switching Characteristics Over Recommended Operating Conditions for GMAC RMIIn Transmit 10/100 Mbits/s
          4. 5.10.6.19.4 GMAC RGMII Timings
            1. Table 5-108 Timing Requirements for rgmiin_rxc - RGMIIn Operation
            2. Table 5-109 Timing Requirements for GMAC RGMIIn Input Receive for 10/100/1000 Mbps
            3. Table 5-110 Switching Characteristics Over Recommended Operating Conditions for rgmiin_txctl - RGMIIn Operation for 10/100/1000 Mbit/s
            4. Table 5-111 Switching Characteristics for GMAC RGMIIn Output Transmit for 10/100/1000 Mbps
        20. 5.10.6.20 MLB
        21. 5.10.6.21 eMMC/SD/SDIO
          1. 5.10.6.21.1 MMC1—SD Card Interface
            1. 5.10.6.21.1.1 Default speed, 4-bit data, SDR, half-cycle
            2. 5.10.6.21.1.2 High speed, 4-bit data, SDR, half-cycle
            3. 5.10.6.21.1.3 SDR12, 4-bit data, half-cycle
            4. 5.10.6.21.1.4 SDR25, 4-bit data, half-cycle
            5. 5.10.6.21.1.5 UHS-I SDR50, 4-bit data, half-cycle
            6. 5.10.6.21.1.6 UHS-I SDR104, 4-bit data, half-cycle
            7. 5.10.6.21.1.7 UHS-I DDR50, 4-bit data
          2. 5.10.6.21.2 MMC2 — eMMC
            1. 5.10.6.21.2.1 Standard JC64 SDR, 8-bit data, half cycle
            2. 5.10.6.21.2.2 High-speed JC64 SDR, 8-bit data, half cycle
            3. 5.10.6.21.2.3 High-speed HS200 JEDS84 SDR, 8-bit data, half cycle
            4. 5.10.6.21.2.4 High-speed JC64 DDR, 8-bit data
              1. Table 5-142 Switching Characteristics for MMC2 - JC64 High Speed DDR Mode
          3. 5.10.6.21.3 MMC3 and MMC4—SDIO/SD
            1. 5.10.6.21.3.1 MMC3 and MMC4, SD Default Speed
            2. 5.10.6.21.3.2 MMC3 and MMC4, SD High Speed
            3. 5.10.6.21.3.3 MMC3 and MMC4, SD and SDIO SDR12 Mode
            4. 5.10.6.21.3.4 MMC3 and MMC4, SD SDR25 Mode
            5. 5.10.6.21.3.5 MMC3 SDIO High-Speed UHS-I SDR50 Mode, Half Cycle
        22. 5.10.6.22 GPIO
        23. 5.10.6.23 PRU-ICSS
          1. 5.10.6.23.1 Programmable Real-Time Unit (PRU-ICSS PRU)
            1. 5.10.6.23.1.1 PRU-ICSS PRU Direct Input/Output Mode Electrical Data and Timing
              1. Table 5-164 PRU-ICSS PRU Timing Requirements - Direct Input Mode
              2. Table 5-165 PRU-ICSS PRU Switching Requirements – Direct Output Mode
            2. 5.10.6.23.1.2 PRU-ICSS PRU Parallel Capture Mode Electrical Data and Timing
              1. Table 5-166 PRU-ICSS PRU Timing Requirements - Parallel Capture Mode
            3. 5.10.6.23.1.3 PRU-ICSS PRU Shift Mode Electrical Data and Timing
              1. Table 5-167 PRU-ICSS PRU Timing Requirements – Shift In Mode
              2. Table 5-168 PRU-ICSS PRU Switching Requirements - Shift Out Mode
            4. 5.10.6.23.1.4 PRU-ICSS PRU Sigma Delta and EnDAT Modes
              1. Table 5-169 PRU-ICSS PRU Timing Requirements - Sigma Delta Mode
              2. Table 5-170 PRU-ICSS PRU Timing Requirements - EnDAT Mode
              3. Table 5-171 PRU-ICSS PRU Switching Requirements - EnDAT Mode
          2. 5.10.6.23.2 PRU-ICSS EtherCAT (PRU-ICSS ECAT)
            1. 5.10.6.23.2.1 PRU-ICSS ECAT Electrical Data and Timing
              1. Table 5-172 PRU-ICSS ECAT Timing Requirements – Input Validated With LATCH_IN
              2. Table 5-173 PRU-ICSS ECAT Timing Requirements – Input Validated With SYNCx
              3. Table 5-174 PRU-ICSS ECAT Timing Requirements – Input Validated With Start of Frame (SOF)
              4. Table 5-175 PRU-ICSS ECAT Timing Requirements - LATCHx_IN
              5. Table 5-176 PRU-ICSS ECAT Switching Requirements - Digital IOs
          3. 5.10.6.23.3 PRU-ICSS MII_RT and Switch
            1. 5.10.6.23.3.1 PRU-ICSS MDIO Electrical Data and Timing
              1. Table 5-177 PRU-ICSS MDIO Timing Requirements – MDIO_DATA
              2. Table 5-178 PRU-ICSS MDIO Switching Characteristics - MDIO_CLK
              3. Table 5-179 PRU-ICSS MDIO Switching Characteristics – MDIO_DATA
            2. 5.10.6.23.3.2 PRU-ICSS MII_RT Electrical Data and Timing
              1. Table 5-180 PRU-ICSS MII_RT Timing Requirements – MII[x]_RXCLK
              2. Table 5-181 PRU-ICSS MII_RT Timing Requirements - MII[x]_TXCLK
              3. Table 5-182 PRU-ICSS MII_RT Timing Requirements - MII_RXD[3:0], MII_RXDV, and MII_RXER
              4. Table 5-183 PRU-ICSS MII_RT Switching Characteristics - MII_TXD[3:0] and MII_TXEN
          4. 5.10.6.23.4 PRU-ICSS Universal Asynchronous Receiver Transmitter (PRU-ICSS UART)
            1. Table 5-184 Timing Requirements for PRU-ICSS UART Receive
            2. Table 5-185 Switching Characteristics Over Recommended Operating Conditions for PRU-ICSS UART Transmit
          5. 5.10.6.23.5 PRU-ICSS IOSETs
          6. 5.10.6.23.6 PRU-ICSS Manual Functional Mapping
        24. 5.10.6.24 System and Miscellaneous interfaces
      7. 5.10.7 Emulation and Debug Subsystem
        1. 5.10.7.1 IEEE 1149.1 Standard-Test-Access Port (JTAG)
          1. 5.10.7.1.1 JTAG Electrical Data/Timing
            1. Table 5-202 Timing Requirements for IEEE 1149.1 JTAG
            2. Table 5-203 Switching Characteristics Over Recommended Operating Conditions for IEEE 1149.1 JTAG
            3. Table 5-204 Timing Requirements for IEEE 1149.1 JTAG With RTCK
            4. Table 5-205 Switching Characteristics Over Recommended Operating Conditions for IEEE 1149.1 JTAG With RTCK
        2. 5.10.7.2 Trace Port Interface Unit (TPIU)
          1. 5.10.7.2.1 TPIU PLL DDR Mode
  6. 6Detailed Description
    1. 6.1  Description
    2. 6.2  Functional Block Diagram
    3. 6.3  MPU
    4. 6.4  DSP Subsystem
    5. 6.5  IPU
    6. 6.6  PRU-ICSS
    7. 6.7  Memory Subsystem
      1. 6.7.1 EMIF
      2. 6.7.2 GPMC
      3. 6.7.3 ELM
      4. 6.7.4 OCMC
    8. 6.8  Interprocessor Communication
      1. 6.8.1 MailBox
      2. 6.8.2 Spinlock
    9. 6.9  Interrupt Controller
    10. 6.10 EDMA
    11. 6.11 Peripherals
      1. 6.11.1  VIP
      2. 6.11.2  DSS
      3. 6.11.3  Timers
        1. 6.11.3.1 General-Purpose Timers
        2. 6.11.3.2 32-kHz Synchronized Timer (COUNTER_32K)
        3. 6.11.3.3 Watchdog Timer
      4. 6.11.4  I2C
      5. 6.11.5  UART
        1. 6.11.5.1 UART Features
        2. 6.11.5.2 IrDA Features
        3. 6.11.5.3 CIR Features
      6. 6.11.6  McSPI
      7. 6.11.7  QSPI
      8. 6.11.8  McASP
      9. 6.11.9  USB
      10. 6.11.10 PCIe
      11. 6.11.11 DCAN
      12. 6.11.12 GMAC_SW
      13. 6.11.13 eMMC/SD/SDIO
      14. 6.11.14 GPIO
      15. 6.11.15 ePWM
      16. 6.11.16 eCAP
      17. 6.11.17 eQEP
    12. 6.12 On-chip Debug
  7. 7Applications, Implementation, and Layout
    1. 7.1 Introduction
      1. 7.1.1 Initial Requirements and Guidelines
    2. 7.2 Power Optimizations
      1. 7.2.1 Step 1: PCB Stack-up
      2. 7.2.2 Step 2: Physical Placement
      3. 7.2.3 Step 3: Static Analysis
        1. 7.2.3.1 PDN Resistance and IR Drop
      4. 7.2.4 Step 4: Frequency Analysis
      5. 7.2.5 System ESD Generic Guidelines
        1. 7.2.5.1 System ESD Generic PCB Guideline
        2. 7.2.5.2 Miscellaneous EMC Guidelines to Mitigate ESD Immunity
        3. 7.2.5.3 ESD Protection System Design Consideration
      6. 7.2.6 EMI / EMC Issues Prevention
        1. 7.2.6.1 Signal Bandwidth
        2. 7.2.6.2 Signal Routing
          1. 7.2.6.2.1 Signal Routing—Sensitive Signals and Shielding
          2. 7.2.6.2.2 Signal Routing—Outer Layer Routing
        3. 7.2.6.3 Ground Guidelines
          1. 7.2.6.3.1 PCB Outer Layers
          2. 7.2.6.3.2 Metallic Frames
          3. 7.2.6.3.3 Connectors
          4. 7.2.6.3.4 Guard Ring on PCB Edges
          5. 7.2.6.3.5 Analog and Digital Ground
    3. 7.3 Core Power Domains
      1. 7.3.1 General Constraints and Theory
      2. 7.3.2 Voltage Decoupling
      3. 7.3.3 Static PDN Analysis
      4. 7.3.4 Dynamic PDN Analysis
      5. 7.3.5 Power Supply Mapping
      6. 7.3.6 DPLL Voltage Requirement
      7. 7.3.7 Loss of Input Power Event
      8. 7.3.8 Example PCB Design
        1. 7.3.8.1 Example Stack-up
        2. 7.3.8.2 vdd Example Analysis
    4. 7.4 Single-Ended Interfaces
      1. 7.4.1 General Routing Guidelines
      2. 7.4.2 QSPI Board Design and Layout Guidelines
    5. 7.5 Differential Interfaces
      1. 7.5.1 General Routing Guidelines
      2. 7.5.2 USB 2.0 Board Design and Layout Guidelines
        1. 7.5.2.1 Background
        2. 7.5.2.2 USB PHY Layout Guide
          1. 7.5.2.2.1 General Routing and Placement
          2. 7.5.2.2.2 Specific Guidelines for USB PHY Layout
            1. 7.5.2.2.2.1  Analog, PLL, and Digital Power Supply Filtering
            2. 7.5.2.2.2.2  Analog, Digital, and PLL Partitioning
            3. 7.5.2.2.2.3  Board Stackup
            4. 7.5.2.2.2.4  Cable Connector Socket
            5. 7.5.2.2.2.5  Clock Routings
            6. 7.5.2.2.2.6  Crystals/Oscillator
            7. 7.5.2.2.2.7  DP/DM Trace
            8. 7.5.2.2.2.8  DP/DM Vias
            9. 7.5.2.2.2.9  Image Planes
            10. 7.5.2.2.2.10 Power Regulators
        3. 7.5.2.3 References
      3. 7.5.3 USB 3.0 Board Design and Layout Guidelines
        1. 7.5.3.1 USB 3.0 interface introduction
        2. 7.5.3.2 USB 3.0 General routing rules
      4. 7.5.4 HDMI Board Design and Layout Guidelines
        1. 7.5.4.1 HDMI Interface Schematic
        2. 7.5.4.2 TMDS General Routing Guidelines
        3. 7.5.4.3 TPD5S115
        4. 7.5.4.4 HDMI ESD Protection Device (Required)
        5. 7.5.4.5 PCB Stackup Specifications
        6. 7.5.4.6 Grounding
      5. 7.5.5 PCIe Board Design and Layout Guidelines
        1. 7.5.5.1 PCIe Connections and Interface Compliance
          1. 7.5.5.1.1 Coupling Capacitors
          2. 7.5.5.1.2 Polarity Inversion
        2. 7.5.5.2 Non-standard PCIe connections
          1. 7.5.5.2.1 PCB Stackup Specifications
          2. 7.5.5.2.2 Routing Specifications
            1. 7.5.5.2.2.1 Impedance
            2. 7.5.5.2.2.2 Differential Coupling
            3. 7.5.5.2.2.3 Pair Length Matching
        3. 7.5.5.3 LJCB_REFN/P Connections
      6. 7.5.6 CSI2 Board Design and Routing Guidelines
        1. 7.5.6.1 CSI2_0 MIPI CSI-2 (1.5 Gbps)
          1. 7.5.6.1.1 General Guidelines
          2. 7.5.6.1.2 Length Mismatch Guidelines
            1. 7.5.6.1.2.1 CSI2_0 MIPI CSI-2 (1.5 Gbps)
          3. 7.5.6.1.3 Frequency-domain Specification Guidelines
    6. 7.6 Clock Routing Guidelines
      1. 7.6.1 Oscillator Ground Connection
    7. 7.7 DDR3 Board Design and Layout Guidelines
      1. 7.7.1 DDR3 General Board Layout Guidelines
      2. 7.7.2 DDR3 Board Design and Layout Guidelines
        1. 7.7.2.1  Board Designs
        2. 7.7.2.2  DDR3 EMIF
        3. 7.7.2.3  DDR3 Device Combinations
        4. 7.7.2.4  DDR3 Interface Schematic
          1. 7.7.2.4.1 32-Bit DDR3 Interface
          2. 7.7.2.4.2 16-Bit DDR3 Interface
        5. 7.7.2.5  Compatible JEDEC DDR3 Devices
        6. 7.7.2.6  PCB Stackup
        7. 7.7.2.7  Placement
        8. 7.7.2.8  DDR3 Keepout Region
        9. 7.7.2.9  Bulk Bypass Capacitors
        10. 7.7.2.10 High-Speed Bypass Capacitors
          1. 7.7.2.10.1 Return Current Bypass Capacitors
        11. 7.7.2.11 Net Classes
        12. 7.7.2.12 DDR3 Signal Termination
        13. 7.7.2.13 VREF_DDR Routing
        14. 7.7.2.14 VTT
        15. 7.7.2.15 CK and ADDR_CTRL Topologies and Routing Definition
          1. 7.7.2.15.1 Four DDR3 Devices
            1. 7.7.2.15.1.1 CK and ADDR_CTRL Topologies, Four DDR3 Devices
            2. 7.7.2.15.1.2 CK and ADDR_CTRL Routing, Four DDR3 Devices
          2. 7.7.2.15.2 Two DDR3 Devices
            1. 7.7.2.15.2.1 CK and ADDR_CTRL Topologies, Two DDR3 Devices
            2. 7.7.2.15.2.2 CK and ADDR_CTRL Routing, Two DDR3 Devices
          3. 7.7.2.15.3 One DDR3 Device
            1. 7.7.2.15.3.1 CK and ADDR_CTRL Topologies, One DDR3 Device
            2. 7.7.2.15.3.2 CK and ADDR/CTRL Routing, One DDR3 Device
        16. 7.7.2.16 Data Topologies and Routing Definition
          1. 7.7.2.16.1 DQS and DQ/DM Topologies, Any Number of Allowed DDR3 Devices
          2. 7.7.2.16.2 DQS and DQ/DM Routing, Any Number of Allowed DDR3 Devices
        17. 7.7.2.17 Routing Specification
          1. 7.7.2.17.1 CK and ADDR_CTRL Routing Specification
          2. 7.7.2.17.2 DQS and DQ Routing Specification
  8. 8Device and Documentation Support
    1. 8.1 Device Nomenclature
      1. 8.1.1 Standard Package Symbolization
      2. 8.1.2 Device Naming Convention
    2. 8.2 Tools and Software
    3. 8.3 Documentation Support
    4. 8.4 Related Links
    5. 8.5 Community Resources
    6. 8.6 商标
    7. 8.7 静电放电警告
    8. 8.8 Glossary
  9. 9Mechanical, Packaging, and Orderable Information
    1. 9.1 Packaging Information

封装选项

请参考 PDF 数据表获取器件具体的封装图。

机械数据 (封装 | 引脚)
  • CBD|538
散热焊盘机械数据 (封装 | 引脚)
订购信息

QSPI

The Quad SPI (QSPI) module is a type of SPI module that allows single, dual or quad read access to external SPI devices. This module has a memory mapped register interface, which provides a direct interface for accessing data from external SPI devices and thus simplifying software requirements. It works as a master only. There is one QSPI module in the device and it is primary intended for fast booting from quad-SPI flash memories.

General SPI features:

  • Programmable clock divider
  • Six pin interface (DCLK, CS_N, DOUT, DIN, QDIN1, QDIN2)
  • 4 external chip select signals
  • Support for 3-, 4- or 6-pin SPI interface
  • Programmable CS_N to DOUT delay from 0 to 3 DCLKs
  • Programmable signal polarities
  • Programmable active clock edge
  • Software controllable interface allowing for any type of SPI transfer

NOTE

For more information, see the Quad Serial Peripheral Interface section of the Device TRM.

CAUTION

The I/O Timings provided in this section are only valid when all QSPI Chip Selects used in a system are configured to use the same Clock Mode (either Clock Mode 0 or Clock Mode 3).

CAUTION

The I/O Timings provided in this section are valid only for some QSPI usage modes when the corresponding Virtual I/O Timings or Manual I/O Timings are configured as described in the tables found in this section.

Table 5-68 and Table 5-69 Present Timing and Switching Characteristics for Quad SPI Interface.

Table 5-68 Switching Characteristics for QSPI

NO. PARAMETER DESCRIPTION MODE MIN MAX UNIT
Q1 tc(SCLK) Cycle time, sclk Default Timing Mode, Clock Mode 0 11.71 ns
Default Timing Mode, Clock Mode 3 20.8 ns
Q2 tw(SCLKL) Pulse duration, sclk low Y × P-1 (1) ns
Q3 tw(SCLKH) Pulse duration, sclk high Y × P-1 (1) ns
Q4 td(CS-SCLK) Delay time, sclk falling edge to cs active edge, CS3:0 Default Timing Mode -M × P-1.6 (2)(3) -M × P+2.6 (2)(3) ns
Q5 td(SCLK-CS) Delay time, sclk falling edge to cs inactive edge, CS3:0 Default Timing Mode N × P-1.6 (2)(3) N × P+2.6 (2)(3) ns
Q6 td(SCLK-D0) Delay time, sclk falling edge to d[0] transition Default Timing Mode -1.6 2.6 ns
Q7 tena(CS-D0LZ) Enable time, cs active edge to d[0] driven (lo-z) -P-3.5 -P+2.5 ns
Q8 tdis(CS-D0Z) Disable time, cs active edge to d[0] tri-stated (hi-z) -P-2.5 -P+2.0 ns
Q9 td(SCLK-D0) Delay time, sclk first falling edge to first d[0] transition PHA=0 Only, Default Timing Mode -1.6-P(2) 2.6-P(2) ns

  1. The Y parameter is defined as follows:
    If DCLK_DIV is 0 or ODD then, Y equals 0.5.
    If DCLK_DIV is EVEN then, Y equals (DCLK_DIV/2) / (DCLK_DIV+1).
    For best performance, it is recommended to use a DCLK_DIV of 0 or ODD to minimize the duty cycle distortion. The HSDIVIDER on CLKOUTX2_H13 output of DPLL_PER can be used to achieve the desired clock divider ratio. All required details about clock division factor DCLK_DIV can be found in the device-specific Technical Reference Manual.
  2. P = SCLK period.
  3. M=QSPI_SPI_DC_REG.DDx + 1 when Clock Mode 0.
    M=QSPI_SPI_DC_REG.DDx when Clock Mode 3.
    N = 2 when Clock Mode 0.
    N = 3 when Clock Mode 3.

DRA790 DRA791 DRA793 DRA797 SPRS906_TIMING_QSPI1_01.gifFigure 5-53 QSPI Read (Clock Mode 3)
DRA790 DRA791 DRA793 DRA797 SPRS906_TIMING_QSPI1_02.gifFigure 5-54 QSPI Read (Clock Mode 0)

CAUTION

The I/O Timings provided in this section are valid only for some QSPI usage modes when the corresponding Virtual I/O Timings or Manual I/O Timings are configured as described in the tables found in this section.

Table 5-69 Timing Requirements for QSPI(3)(2)

NO. PARAMETER DESCRIPTION MODE MIN MAX UNIT
Q2 tsu(D-RTCLK) Setup time, d[3:0] valid before falling rtclk edge Default Timing Mode, Clock Mode 0 4.6 ns
tsu(D-SCLK) Setup time, d[3:0] valid before falling sclk edge Default Timing Mode, Clock Mode 3 12.3 ns
Q13 th(RTCLK-D) Hold time, d[3:0] valid after falling rtclk edge Default Timing Mode, Clock Mode 0 -0.1 ns
th(SCLK-D) Hold time, d[3:0] valid after falling sclk edge Default Timing Mode, Clock Mode 3 0.1 ns
Q14 tsu(D-SCLK) Setup time, final d[3:0] bit valid before final falling sclk edge Default Timing Mode, Clock Mode 3 12.3-P (1) ns
Q15 th(SCLK-D) Hold time, final d[3:0] bit valid after final falling sclk edge Default Timing Mode, Clock Mode 3 0.1+P (1) ns
  1. P = SCLK period.
  2. Clock Modes 1 and 2 are not supported.
  3. The Device captures data on the falling clock edge in Clock Mode 0 and 3, as opposed to the traditional rising clock edge. Although non-standard, the falling-edge-based setup and hold time timings have been designed to be compatible with standard SPI devices that launch data on the falling edge in Clock Modes 0 and 3.
DRA790 DRA791 DRA793 DRA797 SPRS906_TIMING_QSPI1_03.gifFigure 5-55 QSPI Write (Clock Mode 3)
DRA790 DRA791 DRA793 DRA797 SPRS906_TIMING_QSPI1_04.gifFigure 5-56 QSPI Write (Clock Mode 0)

CAUTION

The I/O Timings provided in this section are valid only for some QSPI usage modes when the corresponding Virtual I/O Timings or Manual I/O Timings are configured as described in the tables found in this section.

NOTE

To configure the desired Manual IO Timing Mode the user must follow the steps described in section Manual IO Timing Modes of the Device TRM.

The associated registers to configure are listed in the CFG REGISTER column. For more information see the Control Module chapter in the Device TRM.

Manual IO Timings Modes must be used to ensure some IO timings for QSPI. See Table 5-29Modes Summary for a list of IO timings requiring the use of Manual IO Timings Modes. See Table 5-70Manual Functions Mapping for QSPI for a definition of the Manual modes.

Table 5-70 lists the A_DELAY and G_DELAY values needed to calculate the correct values to be set in the CFG_x registers.

Table 5-70 Manual Functions Mapping for QSPI

BALL BALL NAME QSPI1_MANUAL1 CFG REGISTER MUXMODE
A_DELAY (ps) G_DELAY (ps) 1
L1 gpmc_a3 0 0 CFG_GPMC_A3_OUT qspi1_cs2
K3 gpmc_a4 0 0 CFG_GPMC_A4_OUT qspi1_cs3
H3 gpmc_a13 0 0 CFG_GPMC_A13_IN qspi1_rtclk
H4 gpmc_a14 2247 1186 CFG_GPMC_A14_IN qspi1_d3
K6 gpmc_a15 2176 1197 CFG_GPMC_A15_IN qspi1_d2
K5 gpmc_a16 2229 1268 CFG_GPMC_A16_IN qspi1_d0
K5 gpmc_a16 0 0 CFG_GPMC_A16_OUT qspi1_d0
G2 gpmc_a17 2251 1217 CFG_GPMC_A17_IN qspi1_d1
F2 gpmc_a18 0 0 CFG_GPMC_A18_OUT qspi1_sclk
G4 gpmc_cs2 0 0 CFG_GPMC_CS2_OUT qspi1_cs0
G3 gpmc_cs3 0 0 CFG_GPMC_CS3_OUT qspi1_cs1