SPRUJG3 March   2025

 

  1.   1
  2.   Description
  3.   Features
  4.   4
  5. 1Evaluation Module Overview
    1. 1.1 Introduction
      1.      Preface: Read This First
        1. 1.1.1.1 Sitara MCU+ Academy
        2. 1.1.1.2 Important Usage Notes
    2. 1.2 Kit Contents
    3. 1.3 Specification
      1. 1.3.1 Component Identification
    4. 1.4 Device Information
      1. 1.4.1 HSEC 180-pin Control Card Docking Station
      2. 1.4.2 Security
  6. 2Hardware
    1. 2.1  Power Requirements
      1. 2.1.1 Power Input Using USB Type-C Connector
      2. 2.1.2 Power Status LEDs
      3. 2.1.3 Power Tree
      4. 2.1.4 Power Sequence
      5. 2.1.5 PMIC
    2. 2.2  Functional Block Diagram
    3. 2.3  Reset
    4. 2.4  Clock
    5. 2.5  Boot Mode Selection
    6. 2.6  JTAG Path Selection
    7. 2.7  Header Information
    8. 2.8  GPIO Mapping
    9. 2.9  Push Buttons
    10. 2.10 Interfaces
      1. 2.10.1  Memory Interface
        1. 2.10.1.1 OSPI
        2. 2.10.1.2 Board ID EEPROM
      2. 2.10.2  Ethernet Interface
        1. 2.10.2.1 Control Card Ethernet Routing
        2. 2.10.2.2 On Board Ethernet PHY
        3. 2.10.2.3 LED Indication in RJ45 Connector
        4. 2.10.2.4 Ethernet Add On Board Connector
      3. 2.10.3  I2C
      4. 2.10.4  Industrial Application LEDs
      5. 2.10.5  SPI
      6. 2.10.6  UART
      7. 2.10.7  MCAN
      8. 2.10.8  FSI
      9. 2.10.9  JTAG
      10. 2.10.10 Test Automation Header
      11. 2.10.11 LIN
      12. 2.10.12 MMC
      13. 2.10.13 ADC and DAC
    11. 2.11 HSEC Pinout and Pinmux Mapping
  7. 3Hardware Design Files
  8. 4Additional Information
    1. 4.1 If You Need Assistance
    2. 4.2 Trademarks
  9. 5Related Documentation
    1. 5.1 Supplemental Content
      1.      5.1.A E2 Design Changes
      2.      5.1.B A Design Changes
  10. 6References
    1. 6.1 Reference Documents
    2. 6.2 Other TI Components Used in This Design
  11. 7Revision History

2.10.12 MMC

The AM263Px Control Card provides a micro SD card interface that is mapped to the MMC0 instance of the AM263Px SoC.

TMDSCNCD263P-SIP Micro-SD Connector Interface Figure 2-32 Micro-SD Connector Interface

A load switch (TPS22918DBVR) is used to power the micro SD card connector. The load switch is driven by the output of a 2-input AND gate between WARMRESETn and GPIO_uSD_PWR_EN to power cycle the card upon reset. The load switch uses quick output discharge (QOD) to verify that the supply voltage reaches <10% of nominal value during reset.

Inline ESD protection is provided for the MMC signals in the form of a six channel transient voltage suppressor device (TPD6E001RSER).

The Write Protect (WP) and Card Detect (CD) signals of the SD card connector are pulled up to the 3.3V IO voltage supply. A series termination resistor is provided for the MMC clock signal.