TIDUF35 june   2023 AM6442

 

  1.   1
  2.   Description
  3.   Resources
  4.   Features
  5.   Applications
  6.   6
  7. 1System Description
    1. 1.1 Terminology
  8. 2System Overview
    1. 2.1 Block Diagram
    2. 2.2 Design Considerations
    3. 2.3 Highlighted Products
      1. 2.3.1  AM6442 Microprocessor
      2. 2.3.2  DP83867 gigabit Ethernet Physical Transceiver
      3. 2.3.3  DP83TD510E Single-Pair Ethernet Physical Transceiver
      4. 2.3.4  MSPM0G1107 Microcontroller
      5. 2.3.5  LMK1C1106 6-Channel Output LVCMOS 1.8-V Buffer
      6. 2.3.6  LMK6C Low-Jitter, High-Performance, Bulk-Acoustic-Wave (BAW) Fixed-Frequency LVCMOS Oscillator
      7. 2.3.7  TLVM13630 High-Density, 3-V to 36-V Input, 1-V to 6-V Output, 3-A Step-Down Power Module
      8. 2.3.8  LM74700-Q1 Reverse-Polarity Protection Ideal Diode
      9. 2.3.9  TPS62825A Synchronous Step-Down DC-DC Converter
      10. 2.3.10 LMR36006 Ultra-Small Synchronous Step-Down Converter
      11. 2.3.11 TLV62568A High-Efficiency Step-Down Buck Converter With Forced PWM
  9. 3System Design Theory
    1. 3.1 Power Subsystem
    2. 3.2 AM6442 System on Module Subsystem
    3. 3.3 Ethernet Subsystem
    4. 3.4 Power Over Data Line (PoDL) Subsystem
    5. 3.5 Additional Subsystems
      1. 3.5.1 USB 3.1 Interface
      2. 3.5.2 Micro SD Card Interface
      3. 3.5.3 SimpleLink CC3301 Wi-Fi 6 and Bluetooth Low-Energy BoosterPack Interface
      4. 3.5.4 AM6442 UART Interface
  10. 4Hardware, Software, Testing Requirements, and Test Results
    1. 4.1 Hardware Requirements
      1. 4.1.1 Board Interface
        1. 4.1.1.1 Boot Switch Configuration
        2. 4.1.1.2 Starting up the Reference Design
    2. 4.2 Software Requirements
      1. 4.2.1 PoDL PSE Protocol Programming
      2. 4.2.2 Create an SD Card Image With U-Boot and Linux
    3. 4.3 Test Setup and Procedure
  11. 5Design and Documentation Support
    1. 5.1 Design Files
      1. 5.1.1 Schematics
      2. 5.1.2 BOM
    2. 5.2 Documentation Support
    3. 5.3 Support Resources
    4. 5.4 Trademarks
  12. 6About the Author

4.1.1 Board Interface

Figure 4-1 shows various connectors, switches, and jumpers used to interface with the reference design.

GUID-20230511-SS0I-N21G-LBVJ-HCZNPQZJFNCD-low.jpg Figure 4-1 Interfaces on Gateway Board
Table 4-1 Board Connectors, Switches, and Headers
CONNECTOR DESCRIPTION
J8 External 24-V supply
J6 JTAG interface MSPM0
S3 RESET button MSPM0
J17 UART0 TXD, RXD interface of AM6442
J7 UART TXD, RXD interface of MSPM0
J14 Power supply selector for ISO7021 - set jumper to 1-2 for selecting power from FTDI device. Refer to schematic.
J12 Micro USB interface to UART0 serial console terminal of AM6442
SW1, SW2, SW3, SW4 AM6442 boot mode switches
J18, J19 Interface to CC3301 Wi-Fi and Bluetooth® BoosterPack Plug-in Module (BP-CC3301)
J20 USB 3 Type A connector
J15 μSD card slot
J5 Gigabit RJ45 connector
J16 JTAG interface AM6442
S4 RESET button AM6442
J1, J21 Single pair Ethernet connector port 1
J2, J22 Single pair Ethernet connector port 2
J3, J23 Single pair Ethernet connector port 3
J4, J24 Single pair Ethernet connector port 4
J25, J26 PoDL debug interface for single pair Ethernet port 3