SPRUJ68 January   2023 AM68

 

  1.   Abstract
  2.   Trademarks
  3. 1Introduction
    1. 1.1 Inside the Box
    2. 1.2 Key Features and Interfaces
    3. 1.3 Thermal Compliance
    4. 1.4 EMC, DMI, and ESD Compliance
  4. 2User Interfaces
    1. 2.1 Power Input
      1. 2.1.1 Power Input [J22] With LED for Status [LD2]
      2. 2.1.2 Power Budget Considerations
    2. 2.2 User Inputs
      1. 2.2.1 Board Configuration Settings [SW1]
      2. 2.2.2 Reset Power Down Pushbutton [SW2]
      3. 2.2.3 User Pushbutton [SW3] With User LED Indication [LD3]
    3. 2.3 Standard Interfaces
      1. 2.3.1 Uart-Over-USB [J4 With LED for Status [LD1]
      2. 2.3.2 Gigabit Ethernet [J8] With Integrated LEDs for Status
      3. 2.3.3 JTAG Emulation Interface [J13]
      4. 2.3.4 USB3 1 Gen1 Interfaces [J9] [J11]
      5. 2.3.5 Stacked DisplayPort and HDMI Type A [J12]
      6. 2.3.6 M 2 Key M Connector [J21] for SSD Modules
      7. 2.3.7 MicroSD Card Cage [J19]
    4. 2.4 Expansion Interfaces
      1. 2.4.1 Heatsink [ACC1] With [J15] Fan Header
      2. 2.4.2 CAN-FD Connector(s) [J1] [J2] [J5] [J6]
      3. 2.4.3 Expansion Header [J3]
      4. 2.4.4 Camera Interface 22-Pin Flex Connectors [J16][J17]
      5. 2.4.5 Camera Interface 40-Pin High Speed [J20]
      6. 2.4.6 Automation and Control Connector [J24]
  5. 3Circuit Details
    1. 3.1 Top Level Diagram
    2. 3.2 AM68 SK EVM Interface Mapping
    3. 3.3 I2C Address Mapping
    4. 3.4 GPIO Mapping
    5. 3.5 I2C GPIO Expander Table
    6. 3.6 Identification EEPROM
  6. 4Revision History

2.4.2 CAN-FD Connector(s) [J1] [J2] [J5] [J6]

The EVM supports four (4x) CAN Bus interfaces.

Table 2-7 CAN-FD Interface Assignment
Connector Ref TDA4VE Resource
J1 MCU_CAN0
J2 CAN7
J5 MCU_CAN1
J6 CAN6

Each Controller Area Network (CAN) Bus interface is supported on a 3-pin, 2.54 mm pitch header. The interface meets ISO 11898-2 and ISO 11898-5 physical standards, and supports CAN and optimized CAN-FD performance up to 8 Mbps. Each includes CAN Bus end-point termination. If the EVM is included in a network with more than two nodes, the termination my need to be adjusted.

Table 2-8 CAN-FD Header Pin Definition [J1][J2][J5][J6]
Pin# Pin Name Description Direction
1 CAN-H High-Level CAN Bus Line Bi-Dir
2 GND Ground
3 CAN-L Low-Level CAN Bus Line Bi-Dir