SPRS695D September   2011  – January 2016 AM3871 , AM3874

PRODUCTION DATA.  

  1. 1High-Performance System-on-Chip (SoC)
    1. 1.1 Features
    2. 1.2 Applications
    3. 1.3 Description
    4. 1.4 Functional Block Diagram
  2. 2Revision History
    1. 2.1  Device Comparison
    2. 2.2  Device Characteristics
    3. 2.3  Device Compatibility
    4. 2.4  ARM Cortex-A8 Microprocessor Unit (MPU) Subsystem Overview
      1. 2.4.1 ARM Cortex-A8 RISC Processor
      2. 2.4.2 Embedded Trace Module (ETM)
      3. 2.4.3 ARM Cortex-A8 Interrupt Controller (AINTC)
      4. 2.4.4 ARM Cortex-A8 PLL (PLL_ARM)
      5. 2.4.5 ARM MPU Interconnect
    5. 2.5  Media Controller Overview
    6. 2.6  SGX530 Overview
    7. 2.7  Spinlock Module Overview
    8. 2.8  Mailbox Module Overview
    9. 2.9  Memory Map Summary
      1. 2.9.1 L3 Memory Map
      2. 2.9.2 L4 Memory Map
        1. 2.9.2.1 L4 Fast Peripheral Memory Map
        2. 2.9.2.2 L4 Slow Peripheral Memory Map
      3. 2.9.3 DDR DMM TILER Extended Addressing Map
    10. 2.10 Pin Maps
    11. 2.11 Terminal Functions
      1. 2.11.1  Boot Configuration
      2. 2.11.2  Camera Interface (I/F)
      3. 2.11.3  Controller Area Network (DCAN) Modules (DCAN0, DCAN1)
      4. 2.11.4  DDR2/DDR3 Memory Controller
      5. 2.11.5  EDMA
      6. 2.11.6  EMAC [(R)(G)MII Modes] and MDIO
      7. 2.11.7  General-Purpose Input/Outputs (GPIOs)
      8. 2.11.8  GPMC
      9. 2.11.9  HDMI
      10. 2.11.10 I2C
      11. 2.11.11 McASP
      12. 2.11.12 McBSP
      13. 2.11.13 PCI-Express (PCIe)
      14. 2.11.14 Reset, Interrupts, and JTAG Interface
      15. 2.11.15 Serial ATA (SATA) Signals
      16. 2.11.16 SD Signals (MMC/SD/SDIO)
      17. 2.11.17 SPI
      18. 2.11.18 Oscillator/PLL, Audio Reference Clocks, and Clock Generator
      19. 2.11.19 Timer
      20. 2.11.20 UART
      21. 2.11.21 USB
      22. 2.11.22 Video Input (Digital)
      23. 2.11.23 Video Output (Digital)
      24. 2.11.24 Video Output (Analog, TV)
      25. 2.11.25 Reserved Pins
      26. 2.11.26 Supply Voltages
      27. 2.11.27 Ground Pins (VSS)
  3. 3Device Configurations
    1. 3.1 Control Module Registers
    2. 3.2 Boot Modes
      1. 3.2.1 XIP (NOR) Boot Options
      2. 3.2.2 NAND Flash Boot
      3. 3.2.3 NAND I2C Boot (I2C EEPROM)
      4. 3.2.4 MMC/SD Cards Boot
      5. 3.2.5 SPI Boot
      6. 3.2.6 Ethernet PHY Mode Selection
      7. 3.2.7 PCIe Bootmode (PCIE_32 and PCIE_64)
      8. 3.2.8 UART Bootmode
    3. 3.3 Pin Multiplexing Control
    4. 3.4 Handling Unused Pins
    5. 3.5 DeBugging Considerations
      1. 3.5.1 Pullup/Pulldown Resistors
  4. 4 System Interconnect
  5. 5Device Operating Conditions
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 Recommended Operating Conditions
    3. 5.3 Power-On Hours (POH)
    4. 5.4 Electrical Characteristics Over Recommended Ranges of Supply Voltage and Operating Temperature (Unless Otherwise Noted)
    5. 5.5 Thermal Resistance Characteristics (PBGA Package) [CYE-04] (Thinner Top Hat)
  6. 6Power, Reset, Clocking, and Interrupts
    1. 6.1 Power, Reset and Clock Management (PRCM) Module
    2. 6.2 Power
      1. 6.2.1 Voltage and Power Domains
        1. 6.2.1.1 Core Logic Voltage Domains
        2. 6.2.1.2 Memory Voltage Domains
        3. 6.2.1.3 Power Domains
      2. 6.2.2 SmartReflex [Not Supported]
        1. 6.2.2.1 Dynamic Voltage Frequency Scaling (DVFS)
        2. 6.2.2.2 Adaptive Voltage Scaling [Not Supported]
      3. 6.2.3 Memory Power Management
      4. 6.2.4 SERDES_CLKP and SERDES_CLKN LDO
      5. 6.2.5 Dual Voltage I/Os
      6. 6.2.6 I/O Power-Down Modes
      7. 6.2.7 Standby Mode
      8. 6.2.8 Supply Sequencing
        1. 6.2.8.1 Power-Up Sequence
        2. 6.2.8.2 Power-Down Sequence
      9. 6.2.9 Power-Supply Decoupling
        1. 6.2.9.1 Analog and PLL
        2. 6.2.9.2 Digital
    3. 6.3 Reset
      1. 6.3.1  System-Level Reset Sources
      2. 6.3.2  Power-on Reset (POR pin)
      3. 6.3.3  External Warm Reset (RESET pin)
      4. 6.3.4  Emulation Warm Reset
      5. 6.3.5  Watchdog Reset
      6. 6.3.6  Software Global Cold Reset
      7. 6.3.7  Software Global Warm Reset
      8. 6.3.8  Test Reset (TRST pin)
      9. 6.3.9  Local Reset
      10. 6.3.10 Reset Priority
      11. 6.3.11 Reset Status Register
      12. 6.3.12 PCIE Reset Isolation
      13. 6.3.13 EMAC Switch Reset Isolation
      14. 6.3.14 RSTOUT_WD_OUT Pin
      15. 6.3.15 Effect of Reset on Emulation and Trace
      16. 6.3.16 Reset During Power Domain Switching
      17. 6.3.17 Pin Behaviors at Reset
      18. 6.3.18 Reset Electrical Data/Timing
    4. 6.4 Clocking
      1. 6.4.1  Device (DEV) and Auxiliary (AUX) Clock Inputs
        1. 6.4.1.1 Using the Internal Oscillators
        2. 6.4.1.2 Using a 1.8V LVCMOS-Compatible Clock Input
      2. 6.4.2  SERDES_CLKN/P Input Clock
      3. 6.4.3  AUD_CLKINx Input Clocks
      4. 6.4.4  CLKIN32 Input Clock
      5. 6.4.5  External Input Clocks
      6. 6.4.6  Output Clocks Select Logic
      7. 6.4.7  Input/Output Clocks Electrical Data/Timing
      8. 6.4.8  PLLs
        1. 6.4.8.1 PLL Power Supply Filtering
        2. 6.4.8.2 PLL Multipliers and Dividers
        3. 6.4.8.3 PLL Frequency Limits
        4. 6.4.8.4 PLL Register Descriptions
      9. 6.4.9  SYSCLKs
      10. 6.4.10 Module Clocks
    5. 6.5 Interrupts
      1. 6.5.1 ARM Cortex-A8 Interrupts
  7. 7 Peripheral Information and Timings
    1. 7.1  Parameter Information
      1. 7.1.1 1.8-V and 3.3-V Signal Transition Levels
      2. 7.1.2 3.3-V Signal Transition Rates
      3. 7.1.3 Timing Parameters and Board Routing Analysis
    2. 7.2  Recommended Clock and Control Signal Transition Behavior
    3. 7.3  Controller Area Network Interface (DCAN)
      1. 7.3.1 DCAN Peripheral Register Descriptions
      2. 7.3.2 DCAN Electrical Data/Timing
    4. 7.4  EDMA
      1. 7.4.1 EDMA Channel Synchronization Events
      2. 7.4.2 EDMA Peripheral Register Descriptions
    5. 7.5  Emulation Features and Capability
      1. 7.5.1 Advanced Event Triggering (AET)
      2. 7.5.2 Trace
      3. 7.5.3 IEEE 1149.1 JTAG
        1. 7.5.3.1 JTAG ID (JTAGID) Register Description
        2. 7.5.3.2 JTAG Electrical Data/Timing
    6. 7.6  Ethernet MAC Switch (EMAC SW)
      1. 7.6.1 EMAC Peripheral Register Descriptions
      2. 7.6.2 EMAC Electrical Data/Timing
        1. 7.6.2.1 EMAC MII and GMII Electrical Data/Timing
        2. 7.6.2.2 EMAC RMII Electrical Data/Timing
        3. 7.6.2.3 EMAC RGMII Electrical Data/Timing
      3. 7.6.3 Management Data Input/Output (MDIO)
        1. 7.6.3.1 MDIO Peripheral Register Descriptions
        2. 7.6.3.2 MDIO Electrical Data/Timing
    7. 7.7  General-Purpose Input/Output (GPIO)
      1. 7.7.1 GPIO Peripheral Register Descriptions
      2. 7.7.2 GPIO Electrical Data/Timing
    8. 7.8  General-Purpose Memory Controller (GPMC) and Error Location Module (ELM)
      1. 7.8.1 GPMC and ELM Peripherals Register Descriptions
      2. 7.8.2 GPMC Electrical Data/Timing
        1. 7.8.2.1 GPMC/NOR Flash Interface Synchronous Mode Timing (Nonmultiplexed and Multiplexed Modes)
        2. 7.8.2.2 GPMC/NOR Flash Interface Asynchronous Mode Timing (Nonmultiplexed and Multiplexed Modes)
        3. 7.8.2.3 GPMC/NAND Flash and ELM Interface Timing
    9. 7.9  High-Definition Multimedia Interface (HDMI)
      1. 7.9.1 HDMI Design Guidelines
        1. 7.9.1.1 HDMI Interface Schematic
        2. 7.9.1.2 TMDS Routing
        3. 7.9.1.3 DDC Signals
        4. 7.9.1.4 HDMI ESD Protection Device (Required)
        5. 7.9.1.5 PCB Stackup Specifications
        6. 7.9.1.6 Grounding
    10. 7.10 High-Definition Video Processing Subsystem (HDVPSS)
      1. 7.10.1 HDVPSS Electrical Data/Timing
      2. 7.10.2 Video DAC Guidelines and Electrical Data/Timing
    11. 7.11 Inter-Integrated Circuit (I2C)
      1. 7.11.1 I2C Peripheral Register Descriptions
      2. 7.11.2 I2C Electrical Data/Timing
    12. 7.12 Imaging Subsystem (ISS)
      1. 7.12.1 ISSCAM Electrical Data/Timing
    13. 7.13 DDR2/DDR3 Memory Controller
      1. 7.13.1 DDR2/3 Memory Controller Register Descriptions
      2. 7.13.2 DDR2/DDR3 PHY Register Descriptions
      3. 7.13.3 DDR-Related Control Module Registers Description
      4. 7.13.4 DDR2/DDR3 Memory Controller Electrical Data/Timing
        1. 7.13.4.1 DDR2 Routing Specifications
          1. 7.13.4.1.1 DDR2 Interface
            1. 7.13.4.1.1.1  DDR2 Interface Schematic
            2. 7.13.4.1.1.2  Compatible JEDEC DDR2 Devices
            3. 7.13.4.1.1.3  PCB Stackup
            4. 7.13.4.1.1.4  Placement
            5. 7.13.4.1.1.5  DDR2 Keepout Region
            6. 7.13.4.1.1.6  Bulk Bypass Capacitors
            7. 7.13.4.1.1.7  High-Speed Bypass Capacitors
            8. 7.13.4.1.1.8  Net Classes
            9. 7.13.4.1.1.9  DDR2 Signal Termination
            10. 7.13.4.1.1.10 VREFSSTL_DDR Routing
          2. 7.13.4.1.2 DDR2 CK and ADDR_CTRL Routing
        2. 7.13.4.2 DDR3 Routing Specifications
          1. 7.13.4.2.1 DDR3 versus DDR2
          2. 7.13.4.2.2 DDR3 EMIFs
          3. 7.13.4.2.3 DDR3 Device Combinations
          4. 7.13.4.2.4 DDR3 Interface Schematic
            1. 7.13.4.2.4.1  Compatible JEDEC DDR3 Devices
            2. 7.13.4.2.4.2  PCB Stackup
            3. 7.13.4.2.4.3  Placement
            4. 7.13.4.2.4.4  DDR3 Keepout Region
            5. 7.13.4.2.4.5  Bulk Bypass Capacitors
            6. 7.13.4.2.4.6  High-Speed Bypass Capacitors
              1. 7.13.4.2.4.6.1 Return Current Bypass Capacitors and Vias
            7. 7.13.4.2.4.7  Net Classes
            8. 7.13.4.2.4.8  DDR3 Signal Termination
            9. 7.13.4.2.4.9  VREFSSTL_DDR Routing
            10. 7.13.4.2.4.10 VTT
            11. 7.13.4.2.4.11 CK and ADDR_CTRL Topologies and Routing Definition
              1. 7.13.4.2.4.11.1 Four DDR3 Devices
                1. 7.13.4.2.4.11.1.1 CK and ADDR_CTRL Topologies, Four DDR3 Devices
                2. 7.13.4.2.4.11.1.2 CK and ADDR_CTRL Routing, Four DDR3 Devices
              2. 7.13.4.2.4.11.2 Two DDR3 Devices
                1. 7.13.4.2.4.11.2.1 CK and ADDR_CTRL Topologies, Two DDR3 Devices
                2. 7.13.4.2.4.11.2.2 CK and ADDR_CTRL Routing, Two DDR3 Devices
              3. 7.13.4.2.4.11.3 One DDR3 Device
                1. 7.13.4.2.4.11.3.1 CK and ADDR_CTRL Topologies, One DDR3 Device
                2. 7.13.4.2.4.11.3.2 CK and ADDR/CTRL Routing, One DDR3 Device
            12. 7.13.4.2.4.12 Data Topologies and Routing Definition
              1. 7.13.4.2.4.12.1 DQS and DQ/DM Topologies, Any Number of Allowed DDR3 Devices
              2. 7.13.4.2.4.12.2 DQS and DQ/DM Routing, Any Number of Allowed DDR3 Devices
            13. 7.13.4.2.4.13 Routing Specification
              1. 7.13.4.2.4.13.1 CK and ADDR_CTRL Routing Specification
              2. 7.13.4.2.4.13.2 DQS and DQ Routing Specification
    14. 7.14 Multichannel Audio Serial Port (McASP)
      1. 7.14.1 McASP Device-Specific Information
      2. 7.14.2 McASP0, McASP1, McASP2, McASP3, McASP4, and McASP5 Peripheral Registers Descriptions
      3. 7.14.3 McASP (McASP[5:0]) Electrical Data/Timing
    15. 7.15 Multichannel Buffered Serial Port (McBSP)
      1. 7.15.1 McBSP Peripheral Register Descriptions
      2. 7.15.2 McBSP Electrical Data/Timing
    16. 7.16 MultiMedia Card/Secure Digital/Secure Digital Input Output (MMC/SD/SDIO)
      1. 7.16.1 MMC/SD/SDIO Peripheral Register Descriptions
      2. 7.16.2 MMC/SD/SDIO Electrical Data/Timing
    17. 7.17 Peripheral Component Interconnect Express (PCIe)
      1. 7.17.1 PCIe Peripheral Register Descriptions
      2. 7.17.2 PCIe Electrical Data/Timing
      3. 7.17.3 PCIe Design and Layout Guidelines
        1. 7.17.3.1 Clock Source
        2. 7.17.3.2 PCIe Connections and Interface Compliance
          1. 7.17.3.2.1 Coupling Capacitors
          2. 7.17.3.2.2 Polarity Inversion
        3. 7.17.3.3 Nonstandard PCIe Connections
          1. 7.17.3.3.1 PCB Stackup Specifications
          2. 7.17.3.3.2 Routing Specifications
    18. 7.18 Serial ATA Controller (SATA)
      1. 7.18.1 SATA Peripheral Register Descriptions
      2. 7.18.2 SATA Interface Design Guidelines
        1. 7.18.2.1 SATA Interface Schematic
        2. 7.18.2.2 Compatible SATA Components and Modes
        3. 7.18.2.3 PCB Stackup Specifications
        4. 7.18.2.4 Routing Specifications
        5. 7.18.2.5 Coupling Capacitors
    19. 7.19 Serial Peripheral Interface (SPI)
      1. 7.19.1 SPI Peripheral Register Descriptions
      2. 7.19.2 SPI Electrical Data/Timing
    20. 7.20 Timers
      1. 7.20.1 Timer Peripheral Register Descriptions
      2. 7.20.2 Timer Electrical/Data Timing
    21. 7.21 Universal Asynchronous Receiver/Transmitter (UART)
      1. 7.21.1 UART Peripheral Register Descriptions
      2. 7.21.2 UART Electrical/Data Timing
    22. 7.22 Universal Serial Bus (USB2.0)
      1. 7.22.1 USB2.0 Peripheral Register Descriptions
      2. 7.22.2 USB2.0 Electrical Data/Timing
  8. 8Device and Documentation Support
    1. 8.1 Device Support
      1. 8.1.1 Development Support
      2. 8.1.2 Device and Development-Support Tool Nomenclature
    2. 8.2 Documentation Support
    3. 8.3 Related Links
    4. 8.4 Community Resources
    5. 8.5 Trademarks
    6. 8.6 Electrostatic Discharge Caution
    7. 8.7 Export Control Notice
    8. 8.8 Glossary
  9. 9Mechanical, Packaging, and Orderable Information
    1. 9.1 Packaging Information

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発注情報

4 System Interconnect

The device’s various processors, subsystems, and peripherals are interconnected through a switch fabric architecture. The switch fabric is composed of an L3 and L4 interconnect, a switched central resource (SCR), and multiple bridges (for an overview, see Figure 4-1). Not all Initiators in the switch fabric are connected to all Target peripherals. The supported initiator and target connections are designated by a "X" in Table 4-1, Target/Initiator Connectivity.

For more detailed information on the device System Interconnect Architecture, see the AM387x Sitara™ ARM Processors Technical Reference Manual (Literature Number: SPRUGZ7).

AM3874 AM3871 dg_sys_interconn_prs695_catalog_noL4Firewall.gif Figure 4-1 System Interconnect

Table 4-1 L3 Master/Slave Connectivity(1)

(1) X = Connection exists.
MASTERS SLAVES
EDMA DMM Tiler/Lisa0 EDMA DMM Tiler/Lisa1 EDMA DMM ELLA Media Controller GPMC SGX530 PCIe Gen2 Slave McASP 0/1/2 McBSP HDMI 1.3 Tx Audio L4 HS Periph Port 0 L4 HS Periph Port 1 L4 Std Periph Port 0 L4 Std Periph Port 1 L3 Registers EDMA TPTC0 - 3 CFG EDMA TPCC OCMC RAM USB2.0 CFG Imaging SS SD2
ARM M1 (128-bit) X
ARM M2 (64-bit) X X X X X X X X X X X X X X X X X
HDVPSS Mstr0 X X
HDVPSS Mstr1 X X
SGX530 BIF X X X
SATA X X X
EMAC SW X X
USB2.0 DMA X
USB2.0 Queue Mgr X X X
PCIe Gen2 X X X X X X X X X X X X X X X
Media Controller X X X X X X X X X X X X X X
DAP X X X X X X X X X X X X X X X
EDMA TPTC0 RD X X X X X X X X X X X X X X X
EDMA TPTC0 WR X X X X X X X X X X X X X X X
EDMA TPTC1 RD X X X X X X X X X X X X X X X
EDMA TPTC1 WR X X X X X X X X X X X X X X X
EDMA TPTC2 RD X X X X X X X X X X X X X X X
EDMA TPTC2 WR X X X X X X X X X X X X X X X
EDMA TPTC3 RD X X X X X X X X X X X X X X X
EDMA TPTC3 WR X X X X X X X X X X X X X X X
ISS X X

The L4 interconnect is a nonblocking peripheral interconnect that provides low-latency access to a large number of low-bandwidth, physically-dispersed target cores. The L4 can handle incoming traffic from up to four initiators and can distribute those communication requests to and collect related responses from up to 63 targets.

The device provides two interfaces with L3 interconnect for high-speed peripheraland standard peripheral.

Table 4-2 L4 Peripheral Connectivity(1)

L4 PERIPHERALS MASTERS
ARM Cortex-A8 M2 (64-bit) EDMA TPTC0 EDMA TPTC1 EDMA TPTC2 EDMA TPTC3 PCIe
L4 Fast Peripherals Port 0/1
EMAC SW Port0 Port1 Port0 Port1 Port0 Port1
SATA Port0 Port1 Port0 Port1 Port0 Port1
McASP3 CFG Port0 Port1 Port0 Port1 Port0 Port1
McASP4 CFG Port0 Port1 Port0 Port1 Port0 Port1
McASP5 CFG Port0 Port1 Port0 Port1 Port0 Port1
McASP3 DATA Port0 Port1 Port0 Port1 Port0 Port1
McASP4 DATA Port0 Port1 Port0 Port1 Port0 Port1
McASP5 DATA Port0 Port1 Port0 Port1 Port0 Port1
L4 Slow Peripherals Port 0/1
I2C0 Port0 Port1 Port0 Port1 Port0 Port1
I2C1 Port0 Port1 Port0 Port1 Port0 Port1
I2C2 Port0 Port1 Port0 Port1 Port0 Port1
I2C3 Port0 Port1 Port0 Port1 Port0 Port1
SPI0 Port0 Port1 Port0 Port1 Port0 Port1
SPI1 Port0 Port1 Port0 Port1 Port0 Port1
SPI2 Port0 Port1 Port0 Port1 Port0 Port1
SPI3 Port0 Port1 Port0 Port1 Port0 Port1
UART0 Port0 Port1 Port0 Port1 Port0 Port1
UART1 Port0 Port1 Port0 Port1 Port0 Port1
UART2 Port0 Port1 Port0 Port1 Port0 Port1
UART3 Port0 Port1 Port0 Port1 Port0 Port1
UART4 Port0 Port1 Port0 Port1 Port0 Port1
UART5 Port0 Port1 Port0 Port1 Port0 Port1
Timer1 Port0 Port1 Port0 Port1 Port0 Port1
Timer2 Port0 Port1 Port0 Port1 Port0 Port1
Timer3 Port0 Port1 Port0 Port1 Port0 Port1
Timer4 Port0 Port1 Port0 Port1 Port0 Port1
Timer5 Port0 Port1 Port0 Port1 Port0 Port1
Timer6 Port0 Port1 Port0 Port1 Port0 Port1
Timer7 Port0 Port1 Port0 Port1 Port0 Port1
Timer8 Port0 Port1 Port0 Port1 Port0 Port1
GPIO0 Port0 Port1 Port0 Port1 Port0 Port1
GPIO1 Port0 Port1 Port0 Port1 Port0 Port1
MMC/SD0/SDIO Port0 Port1 Port0 Port1 Port0 Port1
MMC/SD1/SDIO Port0 Port1 Port0 Port1 Port0 Port1
MMC/SD2/SDIO Port0 Port1 Port0 Port1 Port0 Port1
WDT0 Port0 Port1 Port0 Port1 Port0 Port1
RTC Port0 Port1 Port0 Port1 Port0 Port1
System MMU Port0 Port1 Port0 Port1 Port0 Port1
Mailbox Port0
Spinlock Port0
HDVPSS Port0 Port1 Port0 Port1 Port0 Port1
PLLSS Port0 Port1
Control/Top Regs (Control Module) Port0 Port1
PRCM Port0 Port1
ELM Port0 Port1
HDMIPHY Port0 Port1
DCAN0 Port0 Port1 Port0 Port1 Port0 Port1
DCAN1 Port0 Port1 Port0 Port1 Port0 Port1
OCPWP Port0 Port0
McASP0 CFG Port0 Port1 Port0 Port1 Port0 Port1
McASP1 CFG Port0 Port1 Port0 Port1 Port0 Port1
McASP2 CFG Port0 Port1 Port0 Port1 Port0 Port1
SYNCTIMER32K Port0 Port1 Port0 Port1 Port0 Port1
(1) X, Port0, Port1 = Connection exists.