SPRUJ12F August   2021  – January 2024 AM2431 , AM2432 , AM2434

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Preface: Read This First
    1. 1.1 If You Need Assistance
    2. 1.2 Important Usage Notes
  5. 2Kit Overview
    1. 2.1 Kit Contents
    2. 2.2 Key Features
    3. 2.3 Component Identification
    4. 2.4 BoosterPacks
    5. 2.5 Compliance
    6. 2.6 Security
  6. 3Board Setup
    1. 3.1 Power Requirements
      1. 3.1.1 Power Input Using USB Type-C Connector
      2. 3.1.2 Power Status LED's
      3. 3.1.3 Power Tree
      4. 3.1.4 Power Sequence
    2. 3.2 Push Buttons
    3. 3.3 Boot Mode Selection
  7. 4Hardware Description
    1. 4.1  Functional Block Diagram
    2. 4.2  BoosterPack Headers
      1. 4.2.1 Pinmux for BoosterPack
    3. 4.3  GPIO Mapping
    4. 4.4  Reset
    5. 4.5  Clock
    6. 4.6  Memory Interface
      1. 4.6.1 QSPI Interface
      2. 4.6.2 Board ID EEPROM
    7. 4.7  Ethernet Interface
      1. 4.7.1 Ethernet PHY Strapping
      2. 4.7.2 Ethernet PHY - Power, Clock, Reset, Interrupt
      3. 4.7.3 LED indication in Ethernet RJ45 Connector
    8. 4.8  USB 2.0 Interface
    9. 4.9  I2C Interface
    10. 4.10 Industrial Application LEDs
    11. 4.11 UART Interface
    12. 4.12 eQEP Interface
    13. 4.13 CAN Interface
    14. 4.14 FSI Interface
    15. 4.15 JTAG Emulation
    16. 4.16 Test Automation Interface
    17. 4.17 SPI Interface
  8. 5References
    1. 5.1 Reference Documents
    2. 5.2 Other TI Components Used in This Design
  9.   A E3 Design Changes
  10.   B Revision A Design Changes
  11.   Revision History

4.3 GPIO Mapping

Table 4-15 describes the detailed GPIO mapping of the SoC with the LaunchPad peripherals.

Table 4-15 GPIO Mapping Table
Net Name Package Signal Name GPIO Number Input or Output Default State Function
TEST_LED1_GREEN GPMC0_AD7 GPIO0_22 Output PD Active High To turn on the green test LED
TEST_LED2_RED UART0_RTSN GPIO1_55 Output PD Active High To turn on the red test LED
TEST_LED3_RED PRG1_PRU1_GPO18 GPIO1_39 Output PD Active High To turn the bicolor LED red
TEST_LED4_GREEN PRG1_PRU1_GPO19 GPIO1_38 Output PD Active High To turn the bicolor LED green
USER_LED1 GPMC0_AD11 GPIO0_26 Output PD Active High To turn on the green user LED1
USER_LED2 GPMC0_AD12 GPIO0_27 Output PD Active High to turn on the green user LED2
USER_INTn UART_CTSN GPIO1_54 Input PU Active Low User interrupt input from push button switch
OSPI0_RESET_N OSPI0_CSN1 GPIO0_12 Ouput PU Active Low To reset the QSPI FLASH on OSPI0 interface
MCAN/eQEP_MUX_
SEL		 PRG0_PRU1_GPO8 GPIO1_28 Output PD N/A To select the functionality of MCAN0_RX pin as MCAN0_RX or eQEP_I
FSI/BP_MUX_SEL GPMC0_AD13 GPIO0_28 Output PD N/A To select the functionality of GPMC0_AD8 and GPMC0_AD9 pins as FSI_RX or PWM
MCAN0_STB PRG0_PRU1_GPO5 GPIO1_25 Output PU Active Low To put the CAN transceiver out of standby
PRG_CPSW_RGMII1_
MUX_SEL		 PRG1_PRU1_GPO5 GPIO0_70 Output PD N/A To select the RGMII1 path between PRG and CPSW
GPIO_RGMII1_PHY_
RSTn		 PRG1_PRU1_GPO8 GPIO0_73 Output PU Active Low To reset the RGMII1 Ethernet PHY
GPIO_RGMII2_PHY_
RSTn		 PRG1_PRU1_GPO18 GPIO0_20 Output PU Active Low To reset the RGMII2 Ethernet PHY
PRG1_CPSW_RGMII_
INTn		 PRG1_PRU1_GP19 GPIO0_84 Input PU Active Low Interrupt signal from both RGMII1 & RGMII2 Ethernet PHY's
GPIO0_50 PRG1_PRU0_GPO5 GPIO0_50 IO NA NA GPIO connected to BoosterPack header
VPP_1V8_REG_EN PRG1_PRU0_GPO8 GPIO0_53 Output PD Active High To enable the VPP Regulator for eFUSE Programming