SPRUJ85 April   2024

ADVANCE INFORMATION  

  1.   1
  2.   Description
  3.   Key Features
  4. 1LaunchPad Module Overview
    1. 2.1 Introduction
    2. 2.2 Preface: Read This First
      1. 2.2.1 If You Need Assistance
      2. 2.2.2 Important Usage Notes
    3. 2.3 Kit Contents
    4. 2.4 Device Information
      1. 2.4.1 System Architecture Overview
      2. 2.4.2 Security
      3. 2.4.3 Compliance
      4. 2.4.4 BoosterPacks
      5. 2.4.5 Component Identification
  5. 2Hardware Description
    1. 3.1  Board Setup
      1. 3.1.1 Power Requirements
        1. 3.1.1.1 Power Input Using USB Type-C Connector
        2. 3.1.1.2 Power Status LEDs
        3. 3.1.1.3 Power Tree
      2. 3.1.2 Push Buttons
      3. 3.1.3 Boot mode Selection
      4. 3.1.4 IO Expander
    2. 3.2  Functional Block Diagram
    3. 3.3  GPIO Mapping
    4. 3.4  Reset
    5. 3.5  Clock
    6. 3.6  Memory Interface
      1. 3.6.1 OSPI
      2. 3.6.2 Board ID EEPROM
    7. 3.7  Ethernet Interface
      1. 3.7.1 Ethernet PHY #1 - CPSW RGMII/ICSSM
      2. 3.7.2 Ethernet PHY #2 - CPSW RGMII/ICSSM
      3. 3.7.3 LED Indication in RJ45 Connector
    8. 3.8  I2C
    9. 3.9  Industrial Application LEDs
    10. 3.10 SPI
    11. 3.11 UART
    12. 3.12 MCAN
    13. 3.13 FSI
    14. 3.14 JTAG
    15. 3.15 TIVA and Test Automation Header
    16. 3.16 LIN
    17. 3.17 MMC
    18. 3.18 ADC and DAC
    19. 3.19 EQEP and SDFM
    20. 3.20 EPWM
    21. 3.21 BoosterPack Headers
    22. 3.22 Pinmux Mapping
  6. 3Additional Information
    1.     Trademarks
    2. 4.1 Sitara MCU+ Academy
  7. 4References
    1. 5.1 Reference Documents
    2. 5.2 Other TI Components Used in This Design
  8. 5Revision History

2.19 EQEP and SDFM

The AM263Px LaunchPad internally muxes the eQEP and SDFM signals. The eQEP0 and SDFM1 instances of the AM263Px are terminated to two headers (J24, J15). The eQEP2 and SDFM2 instances of the AM263Px are terminated to two headers (J25, J16).

GUID-20240423-SS0I-JJPP-C7PK-KJCCSN8C0RQC-low.png Figure 2-29 EQEP and SDFM Signal Mapping

All eQEP signals have series termination resistors between the AM263Px SoC and the Voltage Level Translator (TXB0108RGYR). The voltage level shifter is responsible for translating the 3.3V to 5V.

SDFM0 is mapped to the BoosterPack Header rather than an independent header. Four of the SDFM0 signals are routed through a 2:1 mux to offer alternate BoosterPack functionality. The select line of the mux is driven by an AM263Px SoC GPIO signal.

Table 2-23 SDFM0 Mux
BP_MUX_SEL Condition Function of Mux
LOW Alternate BP functionality Selected Port A ↔ Port B
HIGH SDFM0 Selected Port A ↔ Port C