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

2.1.1 Power Input [J22] With LED for Status [LD2]

The dedicated power input connector is a USB Type C connector [J22] with Power Delivery 3.0 support. The input can accept wide range of input voltages (5 V to 20 V). The exact power required for the SK EVM is largely dependent on the application and the connected peripherals. The recommended supplies are listed in Table 2-1. These supplies are 20 V Type C supplies capable of supplying up to 60W of power (20VDC at 3A). The minimum supply required is 15W supply (5VDC at 3A). However, a 5 V supply may limit available processing with the processor as well as limit some of the available peripherals. USB peripherals require VBUS and depending on their power needs, may have too much voltage drop from a 5 V input supply. This is a reason higher voltage supply is recommended.

There are many USB Type C power supply manufactures and models available in the market, and it is not possible to test the SK EVM with every combination.

Table 2-1 lists a few recommended supplies the EVM has tested.

Table 2-1 Recommended External Power Supply
Manufacturer Part # Digikey #
GlobTek, Inc. TR9CZ3000USBCG2R6BF2 1939-1794-ND
Qualtek QADC-65-20-08CB Q1251-ND