SPRS956H March   2016  – November 2019 DRA722 , DRA724 , DRA725 , DRA726

PRODUCTION DATA.  

  1. Device Overview
    1. 1.1 Features
    2. 1.2 Applications
    3. 1.3 Description
    4. 1.4 Functional Block Diagram
  2. Revision History
  3. Device Comparison
    1. 3.1 Related Products
  4. Terminal Configuration and Functions
    1. 4.1 Terminal Assignment
      1. 4.1.1 Unused Balls Connection Requirements
    2. 4.2 Ball Characteristics
    3. 4.3 Multiplexing Characteristics
    4. 4.4 Signal Descriptions
      1. 4.4.1  Video Input Ports (VIP)
      2. 4.4.2  Display Subsystem – Video Output Ports
      3. 4.4.3  Display Subsystem – High-Definition Multimedia Interface (HDMI)
      4. 4.4.4  Camera Serial Interface 2 CAL bridge (CSI2)
      5. 4.4.5  External Memory Interface (EMIF)
      6. 4.4.6  General-Purpose Memory Controller (GPMC)
      7. 4.4.7  Timers
      8. 4.4.8  Inter-Integrated Circuit Interface (I2C)
      9. 4.4.9  HDQ / 1-Wire Interface (HDQ1W)
      10. 4.4.10 Universal Asynchronous Receiver Transmitter (UART)
      11. 4.4.11 Multichannel Serial Peripheral Interface (McSPI)
      12. 4.4.12 Quad Serial Peripheral Interface (QSPI)
      13. 4.4.13 Multicannel Audio Serial Port (McASP)
      14. 4.4.14 Universal Serial Bus (USB)
      15. 4.4.15 SATA
      16. 4.4.16 Peripheral Component Interconnect Express (PCIe)
      17. 4.4.17 Controller Area Network Interface (DCAN)
      18. 4.4.18 Ethernet Interface (GMAC_SW)
      19. 4.4.19 Media Local Bus (MLB) Interface
      20. 4.4.20 eMMC/SD/SDIO
      21. 4.4.21 General-Purpose Interface (GPIO)
      22. 4.4.22 Keyboard controller (KBD)
      23. 4.4.23 Pulse Width Modulation (PWM) Interface
      24. 4.4.24 Audio Tracking Logic (ATL)
      25. 4.4.25 Test Interfaces
      26. 4.4.26 System and Miscellaneous
        1. 4.4.26.1 Sysboot
        2. 4.4.26.2 Power, Reset, and Clock Management (PRCM)
        3. 4.4.26.3 Real-Time Clock (RTC) Interface
        4. 4.4.26.4 System Direct Memory Access (SDMA)
        5. 4.4.26.5 Interrupt Controllers (INTC)
        6. 4.4.26.6 Observability
      27. 4.4.27 Power Supplies
  5. Specifications
    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. 5.7.1  LVCMOS DDR DC Electrical Characteristics
      2. 5.7.2  HDMIPHY DC Electrical Characteristics
      3. 5.7.3  Dual Voltage LVCMOS I2C DC Electrical Characteristics
      4. 5.7.4  IQ1833 Buffers DC Electrical Characteristics
      5. 5.7.5  IHHV1833 Buffers DC Electrical Characteristics
      6. 5.7.6  LVCMOS OSC Buffers DC Electrical Characteristics
      7. 5.7.7  LVCMOS CSI2 DC Electrical Characteristics
      8. 5.7.8  BMLB18 Buffers DC Electrical Characteristics
      9. 5.7.9  BC1833IHHV Buffers DC Electrical Characteristics
      10. 5.7.10 USBPHY DC Electrical Characteristics
      11. 5.7.11 Dual Voltage SDIO1833 DC Electrical Characteristics
      12. 5.7.12 Dual Voltage LVCMOS DC Electrical Characteristics
      13. 5.7.13 SATAPHY DC Electrical Characteristics
      14. 5.7.14 PCIEPHY DC Electrical Characteristics
    8. 5.8  VPP Specifications for One-Time Programmable (OTP) eFuses
      1. Table 5-20 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 Characteristics
      1. 5.9.1 Package Thermal Characteristics
    10. 5.10 Power Supply Sequences
  6. Clock Specifications
    1. 6.1 Input Clock Specifications
      1. 6.1.1 Input Clock Requirements
      2. 6.1.2 System Oscillator OSC0 Input Clock
        1. 6.1.2.1 OSC0 External Crystal
        2. 6.1.2.2 OSC0 Input Clock
      3. 6.1.3 Auxiliary Oscillator OSC1 Input Clock
        1. 6.1.3.1 OSC1 External Crystal
        2. 6.1.3.2 OSC1 Input Clock
      4. 6.1.4 RTC Oscillator Input Clock
        1. 6.1.4.1 RTC Oscillator External Crystal
        2. 6.1.4.2 RTC Oscillator Input Clock
        3. 6.1.4.3 RC On-die Oscillator Clock
    2. 6.2 DPLLs, DLLs Specifications
      1. 6.2.1 DPLL Characteristics
      2. 6.2.2 DLL Characteristics
      3. 6.2.3 DPLL and DLL Noise Isolation
  7. Timing Requirements and Switching Characteristics
    1. 7.1  Timing Test Conditions
    2. 7.2  Interface Clock Specifications
      1. 7.2.1 Interface Clock Terminology
      2. 7.2.2 Interface Clock Frequency
    3. 7.3  Timing Parameters and Information
      1. 7.3.1 Parameter Information
        1. 7.3.1.1 1.8V and 3.3V Signal Transition Levels
        2. 7.3.1.2 1.8V and 3.3V Signal Transition Rates
        3. 7.3.1.3 Timing Parameters and Board Routing Analysis
    4. 7.4  Recommended Clock and Control Signal Transition Behavior
    5. 7.5  Virtual and Manual I/O Timing Modes
    6. 7.6  Video Input Ports (VIP)
    7. 7.7  Display Subsystem - Video Output Ports
    8. 7.8  Display Subsystem - High-Definition Multimedia Interface (HDMI)
    9. 7.9  Camera Serial Interface 2 CAL bridge (CSI2)
      1. 7.9.1 CSI-2 MIPI D-PHY
    10. 7.10 External Memory Interface (EMIF)
    11. 7.11 General-Purpose Memory Controller (GPMC)
      1. 7.11.1 GPMC/NOR Flash Interface Synchronous Timing
      2. 7.11.2 GPMC/NOR Flash Interface Asynchronous Timing
      3. 7.11.3 GPMC/NAND Flash Interface Asynchronous Timing
    12. 7.12 Timers
    13. 7.13 Inter-Integrated Circuit Interface (I2C)
      1. Table 7-33 Timing Requirements for I2C Input Timings
      2. Table 7-34 Timing Requirements for I2C HS-Mode (I2C3/4/5/6 Only)
      3. Table 7-35 Switching Characteristics Over Recommended Operating Conditions for I2C Output Timings
    14. 7.14 HDQ / 1-Wire Interface (HDQ1W)
      1. 7.14.1 HDQ / 1-Wire - HDQ Mode
      2. 7.14.2 HDQ/1-Wire-1-Wire Mode
    15. 7.15 Universal Asynchronous Receiver Transmitter (UART)
      1. Table 7-40 Timing Requirements for UART
      2. Table 7-41 Switching Characteristics Over Recommended Operating Conditions for UART
    16. 7.16 Multichannel Serial Peripheral Interface (McSPI)
    17. 7.17 Quad Serial Peripheral Interface (QSPI)
    18. 7.18 Multichannel Audio Serial Port (McASP)
      1. Table 7-48 Timing Requirements for McASP1
      2. Table 7-49 Timing Requirements for McASP2
      3. Table 7-50 Timing Requirements for McASP3/4/5/6/7/8
    19. 7.19 Universal Serial Bus (USB)
      1. 7.19.1 USB1 DRD PHY
      2. 7.19.2 USB2 PHY
      3. 7.19.3 USB3 DRD ULPI-SDR-Slave Mode-12-pin Mode
    20. 7.20 Serial Advanced Technology Attachment (SATA)
    21. 7.21 Peripheral Component Interconnect Express (PCIe)
    22. 7.22 Controller Area Network Interface (DCAN)
      1. Table 7-68 Timing Requirements for DCANx Receive
      2. Table 7-69 Switching Characteristics Over Recommended Operating Conditions for DCANx Transmit
    23. 7.23 Ethernet Interface (GMAC_SW)
      1. 7.23.1 GMAC MII Timings
        1. Table 7-70 Timing Requirements for miin_rxclk - MII Operation
        2. Table 7-71 Timing Requirements for miin_txclk - MII Operation
        3. Table 7-72 Timing Requirements for GMAC MIIn Receive 10/100 Mbit/s
        4. Table 7-73 Switching Characteristics Over Recommended Operating Conditions for GMAC MIIn Transmit 10/100 Mbits/s
      2. 7.23.2 GMAC MDIO Interface Timings
      3. 7.23.3 GMAC RMII Timings
        1. Table 7-78 Timing Requirements for GMAC REF_CLK - RMII Operation
        2. Table 7-79 Timing Requirements for GMAC RMIIn Receive
        3. Table 7-80 Switching Characteristics Over Recommended Operating Conditions for GMAC REF_CLK - RMII Operation
        4. Table 7-81 Switching Characteristics Over Recommended Operating Conditions for GMAC RMIIn Transmit 10/100 Mbits/s
      4. 7.23.4 GMAC RGMII Timings
        1. Table 7-85 Timing Requirements for rgmiin_rxc - RGMIIn Operation
        2. Table 7-86 Timing Requirements for GMAC RGMIIn Input Receive for 10/100/1000 Mbps
        3. Table 7-87 Switching Characteristics Over Recommended Operating Conditions for rgmiin_txctl - RGMIIn Operation for 10/100/1000 Mbit/s
        4. Table 7-88 Switching Characteristics for GMAC RGMIIn Output Transmit for 10/100/1000 Mbps
    24. 7.24 Media Local Bus (MLB) interface
    25. 7.25 eMMC/SD/SDIO
      1. 7.25.1 MMC1-SD Card Interface
        1. 7.25.1.1 Default speed, 4-bit data, SDR, half-cycle
        2. 7.25.1.2 High speed, 4-bit data, SDR, half-cycle
        3. 7.25.1.3 SDR12, 4-bit data, half-cycle
        4. 7.25.1.4 SDR25, 4-bit data, half-cycle
        5. 7.25.1.5 UHS-I SDR50, 4-bit data, half-cycle
        6. 7.25.1.6 UHS-I SDR104, 4-bit data, half-cycle
        7. 7.25.1.7 UHS-I DDR50, 4-bit data
      2. 7.25.2 MMC2 - eMMC
        1. 7.25.2.1 Standard JC64 SDR, 8-bit data, half cycle
        2. 7.25.2.2 High Speed JC64 SDR, 8-bit data, half cycle
        3. 7.25.2.3 High Speed HS200 JEDS84 SDR, 8-bit data, half cycle
        4. 7.25.2.4 High Speed JC64 DDR, 8-bit data
          1. Table 7-119 Switching Characteristics for MMC2 - JC64 High Speed DDR Mode
      3. 7.25.3 MMC3 and MMC4-SDIO/SD
        1. 7.25.3.1 MMC3 and MMC4, SD Default Speed
        2. 7.25.3.2 MMC3 and MMC4, SD High Speed
        3. 7.25.3.3 MMC3 and MMC4, SD and SDIO SDR12 Mode
        4. 7.25.3.4 MMC3 and MMC4, SD SDR25 Mode
        5. 7.25.3.5 MMC3 SDIO High Speed UHS-I SDR50 Mode, Half Cycle
    26. 7.26 General-Purpose Interface (GPIO)
    27. 7.27 Audio Tracking Logic (ATL)
      1. 7.27.1 ATL Electrical Data/Timing
        1. Table 7-141 Switching Characteristics Over Recommended Operating Conditions for ATL_CLKOUTx
    28. 7.28 System and Miscellaneous interfaces
    29. 7.29 Test Interfaces
      1. 7.29.1 IEEE 1149.1 Standard-Test-Access Port (JTAG)
        1. 7.29.1.1 JTAG Electrical Data/Timing
          1. Table 7-142 Timing Requirements for IEEE 1149.1 JTAG
          2. Table 7-143 Switching Characteristics Over Recommended Operating Conditions for IEEE 1149.1 JTAG
          3. Table 7-144 Timing Requirements for IEEE 1149.1 JTAG With RTCK
          4. Table 7-145 Switching Characteristics Over Recommended Operating Conditions for IEEE 1149.1 JTAG With RTCK
      2. 7.29.2 Trace Port Interface Unit (TPIU)
        1. 7.29.2.1 TPIU PLL DDR Mode
  8. Applications, Implementation, and Layout
    1. 8.1 Introduction
      1. 8.1.1 Initial Requirements and Guidelines
    2. 8.2 Power Optimizations
      1. 8.2.1 Step 1: PCB Stack-up
      2. 8.2.2 Step 2: Physical Placement
      3. 8.2.3 Step 3: Static Analysis
        1. 8.2.3.1 PDN Resistance and IR Drop
      4. 8.2.4 Step 4: Frequency Analysis
      5. 8.2.5 System ESD Generic Guidelines
        1. 8.2.5.1 System ESD Generic PCB Guideline
        2. 8.2.5.2 Miscellaneous EMC Guidelines to Mitigate ESD Immunity
        3. 8.2.5.3 ESD Protection System Design Consideration
      6. 8.2.6 EMI / EMC Issues Prevention
        1. 8.2.6.1 Signal Bandwidth
        2. 8.2.6.2 Signal Routing
          1. 8.2.6.2.1 Signal Routing—Sensitive Signals and Shielding
          2. 8.2.6.2.2 Signal Routing—Outer Layer Routing
        3. 8.2.6.3 Ground Guidelines
          1. 8.2.6.3.1 PCB Outer Layers
          2. 8.2.6.3.2 Metallic Frames
          3. 8.2.6.3.3 Connectors
          4. 8.2.6.3.4 Guard Ring on PCB Edges
          5. 8.2.6.3.5 Analog and Digital Ground
    3. 8.3 Core Power Domains
      1. 8.3.1 General Constraints and Theory
      2. 8.3.2 Voltage Decoupling
      3. 8.3.3 Static PDN Analysis
      4. 8.3.4 Dynamic PDN Analysis
      5. 8.3.5 Power Supply Mapping
      6. 8.3.6 DPLL Voltage Requirement
      7. 8.3.7 Loss of Input Power Event
      8. 8.3.8 Example PCB Design
        1. 8.3.8.1 Example Stack-up
        2. 8.3.8.2 vdd Example Analysis
    4. 8.4 Single-Ended Interfaces
      1. 8.4.1 General Routing Guidelines
      2. 8.4.2 QSPI Board Design and Layout Guidelines
    5. 8.5 Differential Interfaces
      1. 8.5.1 General Routing Guidelines
      2. 8.5.2 USB 2.0 Board Design and Layout Guidelines
        1. 8.5.2.1 Background
        2. 8.5.2.2 USB PHY Layout Guide
          1. 8.5.2.2.1 General Routing and Placement
          2. 8.5.2.2.2 Specific Guidelines for USB PHY Layout
            1. 8.5.2.2.2.1  Analog, PLL, and Digital Power Supply Filtering
            2. 8.5.2.2.2.2  Analog, Digital, and PLL Partitioning
            3. 8.5.2.2.2.3  Board Stackup
            4. 8.5.2.2.2.4  Cable Connector Socket
            5. 8.5.2.2.2.5  Clock Routings
            6. 8.5.2.2.2.6  Crystals/Oscillator
            7. 8.5.2.2.2.7  DP/DM Trace
            8. 8.5.2.2.2.8  DP/DM Vias
            9. 8.5.2.2.2.9  Image Planes
            10. 8.5.2.2.2.10 Power Regulators
        3. 8.5.2.3 References
      3. 8.5.3 USB 3.0 Board Design and Layout Guidelines
        1. 8.5.3.1 USB 3.0 interface introduction
        2. 8.5.3.2 USB 3.0 General routing rules
      4. 8.5.4 HDMI Board Design and Layout Guidelines
        1. 8.5.4.1 HDMI Interface Schematic
        2. 8.5.4.2 TMDS General Routing Guidelines
        3. 8.5.4.3 TPD5S115
        4. 8.5.4.4 HDMI ESD Protection Device (Required)
        5. 8.5.4.5 PCB Stackup Specifications
        6. 8.5.4.6 Grounding
      5. 8.5.5 SATA Board Design and Layout Guidelines
        1. 8.5.5.1 SATA Interface Schematic
        2. 8.5.5.2 Compatible SATA Components and Modes
        3. 8.5.5.3 PCB Stackup Specifications
        4. 8.5.5.4 Routing Specifications
      6. 8.5.6 PCIe Board Design and Layout Guidelines
        1. 8.5.6.1 PCIe Connections and Interface Compliance
          1. 8.5.6.1.1 Coupling Capacitors
          2. 8.5.6.1.2 Polarity Inversion
        2. 8.5.6.2 Non-standard PCIe connections
          1. 8.5.6.2.1 PCB Stackup Specifications
          2. 8.5.6.2.2 Routing Specifications
            1. 8.5.6.2.2.1 Impedance
            2. 8.5.6.2.2.2 Differential Coupling
            3. 8.5.6.2.2.3 Pair Length Matching
        3. 8.5.6.3 LJCB_REFN/P Connections
      7. 8.5.7 CSI2 Board Design and Routing Guidelines
        1. 8.5.7.1 CSI2_0 and CSI2_1 MIPI CSI-2 (1.5 Gbps)
          1. 8.5.7.1.1 General Guidelines
          2. 8.5.7.1.2 Length Mismatch Guidelines
            1. 8.5.7.1.2.1 CSI2_0 and CSI2_1 MIPI CSI-2 (1.5 Gbps)
          3. 8.5.7.1.3 Frequency-domain Specification Guidelines
    6. 8.6 Clock Routing Guidelines
      1. 8.6.1 32-kHz Oscillator Routing
      2. 8.6.2 Oscillator Ground Connection
    7. 8.7 DDR3 Board Design and Layout Guidelines
      1. 8.7.1 DDR3 General Board Layout Guidelines
      2. 8.7.2 DDR3 Board Design and Layout Guidelines
        1. 8.7.2.1  Board Designs
        2. 8.7.2.2  DDR3 EMIF
        3. 8.7.2.3  DDR3 Device Combinations
        4. 8.7.2.4  DDR3 Interface Schematic
          1. 8.7.2.4.1 32-Bit DDR3 Interface
          2. 8.7.2.4.2 16-Bit DDR3 Interface
        5. 8.7.2.5  Compatible JEDEC DDR3 Devices
        6. 8.7.2.6  PCB Stackup
        7. 8.7.2.7  Placement
        8. 8.7.2.8  DDR3 Keepout Region
        9. 8.7.2.9  Bulk Bypass Capacitors
        10. 8.7.2.10 High Speed Bypass Capacitors
          1. 8.7.2.10.1 Return Current Bypass Capacitors
        11. 8.7.2.11 Net Classes
        12. 8.7.2.12 DDR3 Signal Termination
        13. 8.7.2.13 VREF_DDR Routing
        14. 8.7.2.14 VTT
        15. 8.7.2.15 CK and ADDR_CTRL Topologies and Routing Definition
          1. 8.7.2.15.1 Four DDR3 Devices
            1. 8.7.2.15.1.1 CK and ADDR_CTRL Topologies, Four DDR3 Devices
            2. 8.7.2.15.1.2 CK and ADDR_CTRL Routing, Four DDR3 Devices
          2. 8.7.2.15.2 Two DDR3 Devices
            1. 8.7.2.15.2.1 CK and ADDR_CTRL Topologies, Two DDR3 Devices
            2. 8.7.2.15.2.2 CK and ADDR_CTRL Routing, Two DDR3 Devices
          3. 8.7.2.15.3 One DDR3 Device
            1. 8.7.2.15.3.1 CK and ADDR_CTRL Topologies, One DDR3 Device
            2. 8.7.2.15.3.2 CK and ADDR/CTRL Routing, One DDR3 Device
        16. 8.7.2.16 Data Topologies and Routing Definition
          1. 8.7.2.16.1 DQS and DQ/DM Topologies, Any Number of Allowed DDR3 Devices
          2. 8.7.2.16.2 DQS and DQ/DM Routing, Any Number of Allowed DDR3 Devices
        17. 8.7.2.17 Routing Specification
          1. 8.7.2.17.1 CK and ADDR_CTRL Routing Specification
          2. 8.7.2.17.2 DQS and DQ Routing Specification
  9. Device and Documentation Support
    1. 9.1 Device Nomenclature
      1. 9.1.1 Standard Package Symbolization
      2. 9.1.2 Device Naming Convention
    2. 9.2 Tools and Software
    3. 9.3 Documentation Support
    4. 9.4 Related Links
    5. 9.5 Support Resources
    6. 9.6 Trademarks
    7. 9.7 Electrostatic Discharge Caution
    8. 9.8 Glossary
  10. 10Mechanical, Packaging, and Orderable Information
    1. 10.1 Packaging Information

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • ABC|760
Thermal pad, mechanical data (Package|Pins)
Orderable Information

Quad Serial Peripheral Interface (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 Quad Serial Peripheral Interface section in 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 7-45 and Table 7-46 Present Timing and Switching Characteristics for Quad SPI Interface.

Table 7-45 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.

DRA722 DRA724 DRA725 DRA726 SPRS906_TIMING_QSPI1_01.gifFigure 7-37 QSPI Read (Clock Mode 3)
DRA722 DRA724 DRA725 DRA726 SPRS906_TIMING_QSPI1_02.gifFigure 7-38 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 7-46 Timing Requirements for QSPI(3)(2)

NO. PARAMETER DESCRIPTION MODE MIN MAX UNIT
Q12 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.
DRA722 DRA724 DRA725 DRA726 SPRS906_TIMING_QSPI1_03.gifFigure 7-39 QSPI Write (Clock Mode 3)
DRA722 DRA724 DRA725 DRA726 SPRS906_TIMING_QSPI1_04.gifFigure 7-40 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 Control Module chapter in the device TRM.

Manual IO Timings Modes must be used to ensure some IO timings for QSPI. See Table 7-2Modes Summary for a list of IO timings requiring the use of Manual IO Timings Modes. See Table 7-47Manual Functions Mapping for QSPI for a definition of the Manual modes.

Table 7-47 lists the A_DELAY and G_DELAY values needed to calculate the correct values to be set in the CFG_x registers.

Table 7-47 Manual Functions Mapping for QSPI

BALL BALL NAME QSPI1_MANUAL1 CFG REGISTER MUXMODE
A_DELAY (ps) G_DELAY (ps) 1
T7 gpmc_a3 0 0 CFG_GPMC_A3_OUT qspi1_cs2
P6 gpmc_a4 0 0 CFG_GPMC_A4_OUT qspi1_cs3
R3 gpmc_a13 0 0 CFG_GPMC_A13_IN qspi1_rtclk
T2 gpmc_a14 2247 1186 CFG_GPMC_A14_IN qspi1_d3
U2 gpmc_a15 2176 1197 CFG_GPMC_A15_IN qspi1_d2
U1 gpmc_a16 2229 1268 CFG_GPMC_A16_IN qspi1_d0
U1 gpmc_a16 0 0 CFG_GPMC_A16_OUT qspi1_d0
P3 gpmc_a17 2251 1217 CFG_GPMC_A17_IN qspi1_d1
R2 gpmc_a18 0 0 CFG_GPMC_A18_OUT qspi1_sclk
P2 gpmc_cs2 0 0 CFG_GPMC_CS2_OUT qspi1_cs0
P1 gpmc_cs3 0 0 CFG_GPMC_CS3_OUT qspi1_cs1