SPRUJF7 March   2025

 

  1.   1
  2.   Description
  3.   Get Started
  4.   Features
  5.   5
  6. 1Evaluation Module Overview
    1. 1.1 Introduction
      1.      Preface: Read This First
      2. 1.1.1 Sitara MCU+ Academy
      3. 1.1.2 Important Usage Notes
    2. 1.2 Kit Contents
    3. 1.3 Specification
      1. 1.3.1 Component Identification
      2. 1.3.2 Functional Block Diagram
    4. 1.4 Device Information
  7. 2Hardware
    1. 2.1  Additional Images
    2. 2.2  Setup
    3. 2.3  Power Requirements
      1. 2.3.1 Power Tree
      2. 2.3.2 Power Sequence
    4. 2.4  Header Information
      1. 2.4.1 Baseboard Headers (J1, J2, J3)
      2. 2.4.2 HSEC Pinout
      3. 2.4.3 XDS Debug Header (J4)
      4. 2.4.4 FSI Header
      5. 2.4.5 OSPI Expansion Connector
      6. 2.4.6 Ethernet Add-on Board Connector
    5. 2.5  Reset
    6. 2.6  Clock
    7. 2.7  GPIO Mapping
    8. 2.8  Interfaces
      1. 2.8.1 USB
      2. 2.8.2 UART
      3. 2.8.3 FSI
      4. 2.8.4 OSPI
      5. 2.8.5 Ethernet
        1. 2.8.5.1 RGMII
        2. 2.8.5.2 PRU-ICSS
          1. 2.8.5.2.1 On-Board PHY
          2. 2.8.5.2.2 Ethernet Add-on Board
      6. 2.8.6 I2C
      7. 2.8.7 SPI
      8. 2.8.8 TMDSHSECDOCK-AM263 Peripherals
        1. 2.8.8.1 ADC/DAC
        2. 2.8.8.2 MCAN
        3. 2.8.8.3 LIN1
        4. 2.8.8.4 JTAG
        5. 2.8.8.5 GPIO
    9. 2.9  Debug Information
    10. 2.10 Test Points
    11. 2.11 Assembly Instructions
    12. 2.12 Best Practices
  8. 3Software
  9. 4Hardware Design Files
  10. 5Additional Information
    1. 5.1 Trademarks
  11. 6References
    1. 6.1 Other TI Components Used in This Design
  12. 7Revision History

2.7 GPIO Mapping

Table 2-7 GPIO Mapping Table - Rev E1
GPIO GPIO Description Pin Name Functionality Net Name Active Status SOM HD Connector Pin Baseboard/Adapter Board Usage
GPIO66 Reset to OSPI flash device GPIO66 Reset OSPI0_RESET_OUTn LOW
GPIO138 Resistor option between GPIO and PMIC_DIAG_OUT CLKOUT0 GPIO MCU_GPIO138 PREFERABLE J1-74 Default PMIC_DIAG_OUT. Remove R84 and populate R138 to use as GPIO.
GPIO65 Error signal from OSPI flash device GPIO65 Error Signal OSPI0_ECS LOW
GPIO1 USER_LED1 OSPI0_CSn1 GPIO MCU_GPIO1 PREFERABLE J1-52 Default USER_LED_OUT. Remove R140 and populate R237 to use as GPIO.
GPIO82 Select line for I2C1/MCAN1 Mux, terminated to SOM HD Connector MMC0_D3 Mux Select MCU_GPIO82 PREFERABLE J1-48 GPIO. Left floating on HSEC180ADAPEVM-AM2
GPIO73 Terminated to SOM HD Connector PR1_PRU1_GPIO2 GPIO MCU_GPIO73 PREFERABLE J1-75 Interrupt signal for MII0 on HSEC180ADAPEVM-AM2
GPIO119 Terminated to SOM HD Connector PR0_PRU1_GPIO19 GPIO MCU_GPIO119 PREFERABLE J3-66 Interrupt signal for MII1 on HSEC180ADAPEVM-AM2
GPIO128 SoC interrupt signal from push button SW3 SDFM0_CLK3 Interrupt MCU_INTn LOW
GPIO126 Terminated to SOM HD Connector SDFM0_CLK2 GPIO MCU_GPIO126 PREFERABLE J1-73 GPIO
GPIO71 Terminated to SOM HD Connector PR1_PRU1_GPIO0 Interupt RGMII1_INTn LOW J2-7 Interrupt signal for RGMII1 on HSEC180ADAPEVM-AM2
GPIO37 Terminated to SOM HD Connector RGMII1_TD0 GPIO RGMII1_TD0 PREFERABLE J2-8 RGMII1 Transmit Data 0 on HSEC180ADAPEVM-AM2
GPIO121 Resistor option between SOM HD Connector and PMIC_INTn EXT_REFCLK0 GPIO MCU_GPIO121 PREFERABLE J1-70 Default PMIC_INTn. Remove R311 and populate R312 to use as GPIO.
GPIO124 Resistor option between USER_LED0 and SOM HD Connector SDFM0_CLK1 GPIO MCU_GPIO124 PREFERABLE J1-72 Default USER_LED0. Remove R215 and populate R214 to use as GPIO.
GPIO74 Terminated to SOM HD Connector PR1_PRU1_GPIO9 GPIO MCU_GPIO74 PREFERABLE J2-25 MDIO & MDC MUX select line on HSEC180ADAPEVM-AM2
GPIO21 Connection for USB_DRVVBUS LIN2_RXD GPIO AM26x_UART2_RXD PREFERABLE J2-26 USB_DRVVBUS
GPIO22 Connection for USB0_VBUS_OC LIN2_TXD GPIO AM26x_UART2_TXD LOW J2-28 USB0_VBUS_OC
IO Expander
Select line for PMIC SPI MUX/DEMUX (U24) P0 Mux Select PMIC_SPI1/FSIRX0_MUX_SEL PREFERABLE
Select line for ADC0_AIN0/DAC_OUT MUX (U20) P1 Mux Select ADC0_AIN0/DAC_OUT_MUX_SEL PREFERABLE
MII Reset P2 Reset MII_RST# LOW J3-101 Reset signal for MII0 and MII1 on HSEC180ADAPEVM-AM2
RGMII1 Reset P3 Reset RGMII1_RST LOW J2-11 Reset signal for RGMII1 on HSEC180ADAPEVM-AM2
Select line for SPI0-FSI MUX/DEMUX (U13) P4 Mux Select SPI0/FSITX0_MUX_SEL PREFERABLE
Select line for SPI3 MUX/DEMUX (U18) P5 Mux Select SPI3_MUX_SEL PREFERABLE
Select line for HSEC180ADAPEVM-AM2 MII0 Mux P6 Mux Select IOEXP_OUT_P6 PREFERABLE J2-5 MII0 Mux select line on HSEC180ADAPEVM-AM2
Select line for HSEC180ADAPEVM-AM2 MII1 Mux P7 Mux Select IOEXP_OUT_P7 PREFERABLE J2-9 MII1 Mux select line on HSEC180ADAPEVM-AM2