SPRSP07F June   2017  – December 2019 66AK2G12

PRODUCTION DATA.  

  1. 1Device Overview
    1. 1.1 Features
    2. 1.2 Applications
    3. 1.3 Description
    4. 1.4 Functional Block Diagram
  2. 2Revision History
  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  DSS
      2. 4.3.2  DDR EMIF
      3. 4.3.3  GPMC
      4. 4.3.4  Timers
      5. 4.3.5  I2C
      6. 4.3.6  UART
      7. 4.3.7  SPI
      8. 4.3.8  QSPI
      9. 4.3.9  McASP
      10. 4.3.10 USB
      11. 4.3.11 PCIESS
      12. 4.3.12 DCAN
      13. 4.3.13 EMAC
      14. 4.3.14 MLB
      15. 4.3.15 McBSP
      16. 4.3.16 MMC/SD
      17. 4.3.17 GPIO
      18. 4.3.18 ePWM
      19. 4.3.19 PRU-ICSS
      20. 4.3.20 Emulation and Debug Subsystem
      21. 4.3.21 System and Miscellaneous
        1. 4.3.21.1 Boot Mode Configuration
        2. 4.3.21.2 Reset
        3. 4.3.21.3 Oscillator Reference Clocks and Clock Generator
        4. 4.3.21.4 Miscellaneous
        5. 4.3.21.5 Interrupt Controllers (INTC)
        6. 4.3.21.6 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
    6. 5.6 Power Consumption Summary
    7. 5.7 Electrical Characteristics
      1. Table 5-2  DDR3L SSTL DC Electrical Characteristics
      2. Table 5-3  I2C OPEN DRAIN DC Electrical Characteristics
      3. Table 5-4  Oscillators DC Electrical Characteristics
      4. Table 5-5  LVDS Input Buffer DC Electrical Characteristics
      5. Table 5-6  LVDS Output Buffer DC Electrical Characteristics
      6. Table 5-7  MLB LVDS Buffers DC Electrical Characteristics
      7. Table 5-8  PORn DC Electrical Characteristics
      8. Table 5-9  1.8-Volt I/O LVCMOS DC Electrical Characteristics
      9. Table 5-10 3.3-Volt I/O LVCMOS DC Electrical Characteristics
      10. 5.7.1      USB0_PHY and USB1_PHY DC Electrical Characteristics
      11. 5.7.2      PCIe SERDES DC Electrical Characteristics
    8. 5.8 Thermal Resistance Characteristics for ABY Package
      1. Table 5-11 Thermal Resistance Characteristics for ABY Package
    9. 5.9 Timing and Switching Characteristics
      1. 5.9.1 Power Supply Sequencing
        1. 5.9.1.1 Power-Up Sequence
        2. 5.9.1.2 Power-Down Sequence
      2. 5.9.2 Reset Timing
        1. 5.9.2.1 Reset Electrical Data/Timing
      3. 5.9.3 Clock Specifications
        1. 5.9.3.1  Input Clocks / Oscillators
          1. 5.9.3.1.1 System Oscillator (SYSOSC) with External Crystal Circuit
          2. 5.9.3.1.2 System Oscillator (SYSOSC) with External LVCMOS Clock Source
          3. 5.9.3.1.3 System Oscillator (SYSOSC) Not Used
          4. 5.9.3.1.4 Optional LVDS Clock Inputs
        2. 5.9.3.2  Optional LVDS Clock Inputs Not Used
        3. 5.9.3.3  Optional Audio Oscillator (AUDOSC) with External Crystal Circuit
        4. 5.9.3.4  Optional Audio Oscillator (AUDOSC) with External LVCMOS Clock Source
        5. 5.9.3.5  Optional Audio Oscillator (AUDOSC) Not Used
        6. 5.9.3.6  Optional USB PHY Reference Clock
        7. 5.9.3.7  PCIe Reference Clock
        8. 5.9.3.8  Output Clocks
        9. 5.9.3.9  PLLs
          1. 5.9.3.9.1 DDR_PLL Settings
        10. 5.9.3.10 Recommended Clock and Control Signal Transition Behavior
      4. 5.9.4 Peripherals
        1. 5.9.4.1  DCAN
        2. 5.9.4.2  DSS
        3. 5.9.4.3  DDR EMIF
        4. 5.9.4.4  EMAC
          1. 5.9.4.4.1 EMAC MDIO Interface Timings
          2. 5.9.4.4.2 EMAC MII Timings
            1. Table 5-28 Timing Requirements for MII_RXCLK—MII Operation
            2. Table 5-29 Timing Requirements for MII_TXCLK—MII Operation
            3. Table 5-30 Timing Requirements for EMAC MII Receive 10 Mbps and 100 Mbps
            4. Table 5-31 Switching Characteristics Over Recommended Operating Conditions for EMAC MII Transmit 10 Mbps and 100 Mbps
          3. 5.9.4.4.3 EMAC RMII Timings
            1. Table 5-32 Timing Requirements for EMAC RMII_REFCLK—RMII Operation
            2. Table 5-33 Timing Requirements for EMAC RMII Receive
            3. Table 5-34 Switching Characteristics Over Recommended Operating Conditions for EMAC RMII_REFCLK —RMII Operation
            4. Table 5-35 Switching Characteristics Over Recommended Operating Conditions for EMAC RMII Transmit 10 Mbps and 100 Mbps
          4. 5.9.4.4.4 EMAC RGMII Timings
            1. Table 5-36 Timing Requirements for RGMII_RXC—RGMII Operation
            2. Table 5-37 Timing Requirements for EMAC RGMII Input Receive for 10 Mbps, 100 Mbps, and 1000 Mbps
            3. Table 5-38 Switching Characteristics Over Recommended Operating Conditions for Transmit - RGMII operation for 10 Mbps, 100 Mbps, and 1000 Mbps
            4. Table 5-39 Switching Characteristics Over Recommended Operating Conditions for EMAC RGMII Transmit - RGMII_TXD[3:0], and RGMII_TXCTL - RGMII Mode
            5. Table 5-40 Switching Characteristics Over Recommended Operating Conditions for EMAC RGMII Transmit - RGMII_TXD[3:0], and RGMII_TXCTL - RGMII ID Mode
        5. 5.9.4.5  GPMC
          1. 5.9.4.5.1 GPMC and NOR Flash—Synchronous Mode
            1. Table 5-41 GPMC and NOR Flash Timing Conditions—Synchronous Mode
            2. Table 5-42 GPMC and NOR Flash Timing Requirements—Synchronous Mode
            3. Table 5-43 GPMC and NOR Flash Switching Characteristics—Synchronous Mode
          2. 5.9.4.5.2 GPMC and NOR Flash—Asynchronous Mode
            1. Table 5-44 GPMC and NOR Flash Internal Timing Parameters—Asynchronous Mode
            2. Table 5-45 GPMC and NOR Flash Timing Requirements—Asynchronous Mode
            3. Table 5-46 GPMC and NOR Flash Switching Characteristics—Asynchronous Mode
        6. 5.9.4.6  I2C
          1. Table 5-47 Timing Requirements for I2C Input Timings
          2. Table 5-48 Switching Characteristics Over Recommended Operating Conditions for I2C Output Timings
        7. 5.9.4.7  McASP
          1. Table 5-49 Timing Requirements for McASP
        8. 5.9.4.8  McBSP
          1. Table 5-51 McBSP Timing Requirements
          2. Table 5-52 McBSP Switching Characteristics
          3. Table 5-53 McBSP Timing Requirements for FSR When GSYNC = 1
        9. 5.9.4.9  MLB
        10. 5.9.4.10 MMC/SD
          1. Table 5-60 MMC Timing Conditions
          2. Table 5-61 Timing Requirements for MMC0_CMD and MMC0_DATn
          3. Table 5-62 Timing Requirements for MMC1_CMD and MMC1_DATn when operating in SDR mode
          4. Table 5-63 Timing Requirements for MMC1_CMD and MMC1_DATn when operating in DDR mode
          5. Table 5-64 Switching Characteristics for MMCi_CLK
          6. Table 5-65 Switching Characteristics for MMC0_CMD and MMC0_DATn—HSPE=0
          7. Table 5-66 Switching Characteristics for MMC1_CMD and MMC1_DATn—HSPE=0 when operating in SDR mode
          8. Table 5-67 Switching Characteristics for MMC1_CMD and MMC1_DATn—HSPE=0 when operating in DDR mode
        11. 5.9.4.11 PCIESS
        12. 5.9.4.12 PRU-ICSS
          1. 5.9.4.12.1 Programmable Real-Time Unit (PRU-ICSS PRU)
            1. 5.9.4.12.1.1 PRU-ICSS PRU Direct Input/Output Mode Electrical Data and Timing
              1. Table 5-68 PRU-ICSS PRU Timing Requirements - Direct Input Mode
              2. Table 5-69 PRU-ICSS PRU Switching Requirements – Direct Output Mode
            2. 5.9.4.12.1.2 PRU-ICSS PRU Parallel Capture Mode Electrical Data and Timing
              1. Table 5-70 PRU-ICSS PRU Timing Requirements – Parallel Capture Mode
            3. 5.9.4.12.1.3 PRU-ICSS PRU Shift Mode Electrical Data and Timing
              1. Table 5-71 PRU-ICSS PRU Timing Requirements – Shift In Mode
              2. Table 5-72 PRU-ICSS PRU Switching Requirements – Shift Out Mode
          2. 5.9.4.12.2 PRU-ICSS EtherCAT (PRU-ICSS ECAT)
            1. 5.9.4.12.2.1 PRU-ICSS ECAT Electrical Data and Timing
              1. Table 5-73 PRU-ICSS ECAT Timing Requirements – Input Validated With SYNCx
              2. Table 5-74 PRU-ICSS ECAT Timing Requirements – LATCHx_IN
              3. Table 5-75 PRU-ICSS ECAT Switching Requirements – Digital IOs
          3. 5.9.4.12.3 PRU-ICSS MII_RT and Switch
            1. 5.9.4.12.3.1 PRU-ICSS MDIO Electrical Data and Timing
              1. Table 5-76 PRU-ICSS MDIO Timing Requirements – MDIO_DATA
              2. Table 5-77 PRU-ICSS MDIO Switching Characteristics – MDIO_CLK
              3. Table 5-78 PRU-ICSS MDIO Switching Characteristics – MDIO_DATA
            2. 5.9.4.12.3.2 PRU-ICSS MII_RT Electrical Data and Timing
              1. Table 5-79 PRU-ICSS MII_RT Timing Requirements – MII_RXCLK
              2. Table 5-80 PRU-ICSS MII_RT Timing Requirements – MII_TXCLK
              3. Table 5-81 PRU-ICSS MII_RT Timing Requirements – MII_RXD[3:0], MII_RXDV, and MII_RXER
              4. Table 5-82 PRU-ICSS MII_RT Switching Characteristics – MII_TXD[3:0] and MII_TXEN
          4. 5.9.4.12.4 PRU-ICSS Universal Asynchronous Receiver Transmitter (PRU-ICSS UART)
            1. Table 5-83 PRU-ICSS UART Timing Conditions
            2. Table 5-84 Timing Requirements for PRU-ICSS UART Receive
            3. Table 5-85 Switching Characteristics Over Recommended Operating Conditions for PRU-ICSS UART Transmit
          5. 5.9.4.12.5 PRU-ICSS PRU Sigma Delta and EnDAT Modes
            1. Table 5-86 PRU-ICSS PRU Timing Requirements - Sigma Delta Mode
            2. Table 5-87 PRU-ICSS PRU Timing Requirements - EnDAT Mode
            3. Table 5-88 PRU-ICSS PRU Switching Requirements - EnDAT Mode
        13. 5.9.4.13 QSPI
        14. 5.9.4.14 SPI
          1. 5.9.4.14.1 SPI—Slave Mode
            1. Table 5-91 Timing Requirements for SPI Input Timings—Slave Mode
            2. Table 5-92 Switching Characteristics for SPI Output Timings—Slave Mode
          2. 5.9.4.14.2 SPI—Master Mode
            1. Table 5-93 SPI Timing Conditions—Master Mode
            2. Table 5-94 Timing Requirements for SPI Input Timings—Master Mode
            3. Table 5-95 Switching Characteristics for SPI Output Timings—Master Mode
        15. 5.9.4.15 Timers
        16. 5.9.4.16 UART
          1. Table 5-98 Timing Requirements for UART
          2. Table 5-99 Switching Characteristics Over Recommended Operating Conditions for UART
        17. 5.9.4.17 USB
      5. 5.9.5 Emulation and Debug Subsystem
        1. 5.9.5.1 IEEE 1149.1 Standard-Test-Access Port (JTAG)
          1. 5.9.5.1.1 JTAG Electrical Data and Timing
            1. Table 5-100 Timing Requirements for IEEE 1149.1 JTAG
            2. Table 5-101 Switching Characteristics Over Recommended Operating Conditions for IEEE 1149.1 JTAG
  6. 6Detailed Description
    1. 6.1  Overview
    2. 6.2  Functional Block Diagram
    3. 6.3  Arm A15
    4. 6.4  C66x DSP Subsystem
    5. 6.5  C66x Cache Subsystem
    6. 6.6  PRU-ICSS
    7. 6.7  Memory Subsystem
      1. 6.7.1 MSMC
      2. 6.7.2 DDR EMIF
      3. 6.7.3 GPMC
    8. 6.8  Interprocessor Communication
      1. 6.8.1 MSGMGR
      2. 6.8.2 SEM
    9. 6.9  EDMA
    10. 6.10 Peripherals
      1. 6.10.1  DCAN
      2. 6.10.2  DSS
      3. 6.10.3  eCAP
      4. 6.10.4  ePWM
      5. 6.10.5  eQEP
      6. 6.10.6  GPIO
      7. 6.10.7  I2C
      8. 6.10.8  ASRC
      9. 6.10.9  McASP
      10. 6.10.10 McBSP
      11. 6.10.11 MLB
      12. 6.10.12 MMC/SD
      13. 6.10.13 NSS
      14. 6.10.14 PCIESS
      15. 6.10.15 QSPI
      16. 6.10.16 SPI
      17. 6.10.17 Timers
      18. 6.10.18 UART
      19. 6.10.19 USB
  7. 7Applications, Implementation, and Layout
    1. 7.1 DDR3L Board Design and Layout Guidelines
      1. 7.1.1 DDR3L General Board Layout Guidelines
      2. 7.1.2 DDR3L Board Design and Layout Guidelines
        1. 7.1.2.1  Board Designs
        2. 7.1.2.2  DDR3L Device Combinations
        3. 7.1.2.3  DDR3L Interface Schematic
          1. 7.1.2.3.1 32-Bit DDR3L Interface
          2. 7.1.2.3.2 16-Bit DDR3L Interface
        4. 7.1.2.4  Compatible JEDEC DDR3L Devices
        5. 7.1.2.5  PCB Stackup
        6. 7.1.2.6  Placement
        7. 7.1.2.7  DDR3L Keepout Region
        8. 7.1.2.8  Bulk Bypass Capacitors
        9. 7.1.2.9  High-Speed Bypass Capacitors
          1. 7.1.2.9.1 Return Current Bypass Capacitors
        10. 7.1.2.10 Net Classes
        11. 7.1.2.11 DDR3L Signal Termination
        12. 7.1.2.12 VREF_DDR Routing
        13. 7.1.2.13 VTT
        14. 7.1.2.14 CK and ADDR_CTRL Topologies and Routing Definition
          1. 7.1.2.14.1 Four DDR3L Devices
            1. 7.1.2.14.1.1 CK and ADDR_CTRL Topologies, Four DDR3L Devices
            2. 7.1.2.14.1.2 CK and ADDR_CTRL Routing, Four DDR3L Devices
          2. 7.1.2.14.2 One DDR3L Device
            1. 7.1.2.14.2.1 CK and ADDR_CTRL Topologies, One DDR3L Device
            2. 7.1.2.14.2.2 CK and ADDR/CTRL Routing, One DDR3L Device
        15. 7.1.2.15 Data Topologies and Routing Definition
          1. 7.1.2.15.1 DQS and DQ/DM Topologies, Any Number of Allowed DDR3L Devices
          2. 7.1.2.15.2 DQS and DQ/DM Routing, Any Number of Allowed DDR3L Devices
        16. 7.1.2.16 Routing Specification
          1. 7.1.2.16.1 CK and ADDR_CTRL Routing Specification
          2. 7.1.2.16.2 DQS and DQ Routing Specification
    2. 7.2 High Speed Differential Signal Routing Guidance
    3. 7.3 Power Distribution Network (PDN) Implementation Guidance
      1. 7.3.1 Decoupling/Filtering of Analog Power Supplies and Reference Inputs
        1. 7.3.1.1 PLL Power Supplies
        2. 7.3.1.2 DDR EMIF PHY DLL Power Supplies
        3. 7.3.1.3 DDR EMIF PHY Voltage Reference Input
        4. 7.3.1.4 Internal LDO Outputs
        5. 7.3.1.5 PCIe PHY Power Supply
        6. 7.3.1.6 USB PHY Power Supplies
    4. 7.4 Single-Ended Interfaces
      1. 7.4.1 General Routing Guidelines
    5. 7.5 Clock Routing Guidelines
      1. 7.5.1 Oscillator Routing
      2. 7.5.2 Oscillator Ground Connection
  8. 8Device and Documentation Support
    1. 8.1 Device Nomenclature
    2. 8.2 Tools and Software
    3. 8.3 Documentation Support
    4. 8.4 Support Resources
    5. 8.5 Trademarks
    6. 8.6 Glossary
  9. 9Mechanical, Packaging, and Orderable Information
    1. 9.1 Packaging Information

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • ABY|625
Thermal pad, mechanical data (Package|Pins)
Orderable Information

6.9 EDMA

The primary purpose of the Enhanced Direct Memory Access (EDMA) controller is to service user-programmed data transfers between two memory-mapped slave endpoints on the device.

Typical usage of the EDMA controller includes:

  • Servicing software-driven paging transfers (for example, data movement between external memory [such as SDRAM] and internal memory [such as DSP L2 SRAM])
  • Servicing event-driven peripherals, such as a serial port
  • Performing sorting or sub-frame extraction of various data structures
  • Offloading data transfers from the main device CPUs, such as the C66x DSP CorePac or the Arm CorePac

The EDMA controller consists of two major principle blocks:

  • EDMA Channel Controller
  • EDMA Transfer Controller(s)

The EDMA Channel Controller (EDMACC) serves as the user interface for the EDMA controller. The EDMACC includes parameter RAM (PaRAM), channel control registers, and interrupt control registers. The EDMACC serves to prioritize incoming software requests or events from peripherals and submits transfer requests (TR) to the EDMA transfer controller.

The EDMA Transfer Controller (EDMATC) is responsible for data movement. The transfer request packets (TRP) submitted by the EDMACC contain the transfer context, based on which the transfer controller issues read/write commands to the source and destination addresses programmed for a given transfer.

There are two EDMA controllers present on this device:

  • EDMA_0, integrating:
    • 1 Channel Controller, referenced as: EDMACC_0
    • 2 Transfer Controllers, referenced as: EDMACC_0_TC_0 (or EDMATC_0) and EDMACC_0_TC_1 (or EDMATC_1)
  • EDMA_1, integrating:
    • 1 Channel Controller, referenced as: EDMACC_1
    • 2 Transfer Controllers, referenced as: EDMACC_1_TC_0 (or EDMATC_2) and EDMACC_1_TC_1 (or EDMATC_3)

The two EDMA channel controllers (EDMACC_0 and EDMACC_1) are functionally identical. For simplification, the unified name EDMACC shall be regularly used throughout this chapter when referring to EDMA Channel Controllers functionality and features.

The four EDMA transfer controllers (EDMACC_0_TC_0, EDMACC_0_TC_1, EDMACC_1_TC_0 and EDMACC_1_TC_1) are functionally identical. For simplification, the unified name EDMATC shall be regularly used throughout this chapter when referring to EDMA Transfer Controllers functionality and features.

Each EDMACC has the following features:

  • Fully orthogonal transfer description:
    • 3 transfer dimensions:
      • Array (multiple bytes)
      • Frame (multiple arrays)
      • Block (multiple frames)
    • Single event can trigger transfer of array, frame, or entire block
    • Independent indexes on source and destination
  • Flexible transfer definition:
    • Increment or constant addressing modes
    • Linking mechanism allows automatic PaRAM set update
    • Chaining allows multiple transfers to execute with one event
  • 64 DMA channels:
    • Channels triggered by either:
      • Event synchronization
      • Manual synchronization (CPU write to event set register)
      • Chain synchronization (completion of one transfer triggers another transfer)
    • Support for programmable DMA Channel to PaRAM mapping
  • 8 Quick DMA (QDMA) channels:
    • QDMA channels are triggered automatically upon writing to PaRAM set entry
    • Support for programmable QDMA channel to PaRAM mapping
  • 512 PaRAM sets:
    • Each PaRAM set can be used for a DMA channel, QDMA channel, or link set
  • 2 transfer controllers/event queues:
    • 16 event entries per event queue
  • Interrupt generation based on:
    • Transfer completion
    • Error conditions
  • Debug visibility:
    • Queue water marking/threshold
    • Error and status recording to facilitate debug
  • Memory protection support:
    • Proxied memory protection for TR submission
    • Active memory protection for accesses to PaRAM and registers

Each EDMATC has the following features:

  • Supports 2-dimensional (2D) transfers with independent indexes on source and destination (EDMACC manages the 3rd dimension)
  • Up to 4 in-flight transfer requests (TR)
  • Programmable priority levels
  • Support for increment or constant addressing mode transfers
  • Interrupt and error support
  • Supports only little-endian operation in this device
  • Memory mapped register (MMR) bit fields are fixed position in 32-bit MMR

For more information chapter EDMA Controller of the Device TRM.