SPRUJ93 august   2023

 

  1.   1
  2.   Description
  3.   Features
  4.   4
  5. 1Evaluation Module Overview
    1.     Preface: Read This First
      1. 1.1.1 Sitara™ MCU+ Academy
      2. 1.1.2 If You Need Assistance
      3. 1.1.3 Important Usage Notes
    2. 1.1 Introduction
    3. 1.2 Kit Contents
    4. 1.3 Specification
    5. 1.4 Device Information
    6. 1.5 HSEC 180-pin Control Card Docking Station
    7. 1.6 Security
  6. 2Hardware
    1. 2.1  Functional Block Diagram
    2. 2.2  Component Identification
    3. 2.3  Power Requirements
      1. 2.3.1 Power Input Using USB Type-C Connector
      2. 2.3.2 Power Status LEDs
      3. 2.3.3 Power Tree
      4. 2.3.4 Power Sequence
      5. 2.3.5 PMIC
    4. 2.4  Reset
    5. 2.5  Clock
    6. 2.6  Boot Mode Selection
    7. 2.7  JTAG Path Selection
    8. 2.8  Header Information
    9. 2.9  GPIO Mapping
    10. 2.10 Push Buttons
    11. 2.11 Test Points
    12. 2.12 Interfaces
      1. 2.12.1  Memory Interface
        1. 2.12.1.1 QSPI
        2. 2.12.1.2 Board ID EEPROM
      2. 2.12.2  Ethernet Interface
        1. 2.12.2.1 RGMII
        2. 2.12.2.2 PRU-ICSS
        3. 2.12.2.3 LED Indication in RJ45 Connector
      3. 2.12.3  I2C
      4. 2.12.4  Industrial Application LEDs
      5. 2.12.5  SPI
      6. 2.12.6  UART
      7. 2.12.7  MCAN
      8. 2.12.8  FSI
      9. 2.12.9  JTAG
      10. 2.12.10 Test Automation Header
      11. 2.12.11 LIN
      12. 2.12.12 MMC
      13. 2.12.13 ADC and DAC
    13. 2.13 HSEC Pinout and Pinmux Mapping
  7. 3Software
    1. 3.1 SDK Installation
  8. 4Hardware Design Files
  9. 5Additional Information
    1. 5.1 Trademarks
    2. 5.2 E1 Design Hardware Modifications
  10. 6References
    1. 6.1 Reference Documents
    2. 6.2 Other TI Components Used in This Design

2.12.10 Test Automation Header

The AM263x Control Card supports a 40-pin test automation header that allows an external controller to manipulate basic operations such as power down, PORz, warm reset, and bootmode control.

GUID-20230515-SS0I-3Q33-WWZH-HBJK4S5KD2P3-low.png Figure 2-32 Test Automation Header

The Test Automation Circuit is powered by a dedicated 3.3 V power supply (VSYS_TA_3V3) that is generated by a 5 V to 3.3 V buck regulator (TPS62177DQCR).

The AM263x SoC I2C2 instance is connected to both the Test Automation Header and the bootmode IO expander (TCA6408ARGTR).

Test Automation Header GPIO Mapping details the Test Automation GPIO mapping:

Table 2-24 Test Automation Header GPIO Mapping
Signal Name Description Direction
TA_POWERDOWN When logic low, disables the 3.3 V buck regulator (TPS62913RPUR) that is used in the first stage of DC/DC conversion Output
TA_PORZn When logic low, connects the PORz signal to ground due to the PMOS V_GS being less than zero creating a power on reset to the MAIN domain Output
TA_RESETz When logic low, connects the WARMRESETn signal to ground due to the PMOS V_GS being less than zero creating a warm reset to the MAIN domain Output
TA_GPIO1 When logic low, connects the INTn signal to ground due to the PMOS V_GS being less than zero creating an interrupt to the SoC Output
TA_GPIO2 When logic low, disables the 1.2 V buck regulator (TPS62913RPUR) Output
TA_GPIO3 When logic low, disables the bootmode buffer output enable Output
TA_GPIO4 Reset signal for Bootmode IO Expander (TCA6408ARGTR) Output