SPRUJF1C November   2024  â€“ December 2025 AM2612

 

  1.   1
  2.   Description
  3.   Get Started
  4.   Features
  5.   5
  6. 1Evaluation Module Overview
    1. 1.1 Introduction
      1. 1.1.1 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 Device Information
      1. 1.3.1 System Architecture Overview
      2. 1.3.2 Component Identification
      3. 1.3.3 Functional Block Diagram
      4. 1.3.4 BoosterPacks
      5. 1.3.5 Device Information
        1. 1.3.5.1 Security
  7. 2Hardware
    1. 2.1  Setup
      1. 2.1.1 Standalone Configuration
    2. 2.2  Power Requirements
      1. 2.2.1 Power Input Using USB Type-C Connector
      2. 2.2.2 Power Tree
      3. 2.2.3 Power Status LEDs
    3. 2.3  Header Information
      1. 2.3.1 OSPI Expansion Connector
      2. 2.3.2 ADC/DAC External VREF Headers
      3. 2.3.3 FSI Header
      4. 2.3.4 EQEP Headers
    4. 2.4  Push Buttons
    5. 2.5  Reset
    6. 2.6  Clock
    7. 2.7  Boot Mode Selection
    8. 2.8  GPIO Mapping
    9. 2.9  IO Expander
    10. 2.10 Interfaces
      1. 2.10.1  Memory Interfaces
        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 Ethernet PHY 0 - RGMII2 / PR0_PRU0
        2. 2.10.2.2 Ethernet PHY 1 - RGMII1 / PR0_PRU1
      3. 2.10.3  I2C
        1. 2.10.3.1 Industrial Application LEDs
      4. 2.10.4  SPI
      5. 2.10.5  UART
      6. 2.10.6  MCAN
      7. 2.10.7  SDFM
      8. 2.10.8  FSI
      9. 2.10.9  JTAG
      10. 2.10.10 Test Automation Pin Mapping
      11. 2.10.11 LIN
      12. 2.10.12 ADC and DAC
      13. 2.10.13 EQEP
      14. 2.10.14 EPWM
      15. 2.10.15 USB
    11. 2.11 BoosterPack Headers
      1. 2.11.1 BoosterPack Mode 00: Standard LaunchPad/BoosterPack Pinout
      2. 2.11.2 BoosterPack Mode 01: Servo Motor Control BoosterPacks Mode
      3. 2.11.3 BoosterPack Mode 10: BOOSTXL-IOLINKM-8 Mode
      4. 2.11.4 BoosterPack Mode 11: C2000 DRVx BoosterPacks Mode
    12. 2.12 Pinmux Mapping
    13. 2.13 Test Points
    14. 2.14 Best Practices
  8. 3Software
  9. 4Hardware Design Files
  10. 5Compliance
  11. 6Additional Information
    1. 6.1 Revision E1 Appendix
      1. 6.1.1 TA_POWERDOWNz pulled up by VSYS_TA_3V3 which is powered by VSYS_3V3
      2. 6.1.2 USB2.0_MUX_SEL0 pulled up by R355
      3. 6.1.3 MDIO and MDC of PRU0-ICSS0 needs to be routed to both Ethernet PHYs
      4. 6.1.4 AM261_RGMII1_RXLINK and AM261_RGMII2_RXLINK to be connected to GPIO
    2. 6.2 Revision E2 Appendix
      1. 6.2.1 Revision E2 Changes from E1
      2. 6.2.2 Revision E2 Known Limitations
    3. 6.3 Revision A Appendix
      1. 6.3.1 Revision A Changes from E2
      2. 6.3.2 Revision A Errata
    4.     Trademarks
  12. 7References
    1. 7.1 Reference Documents
    2. 7.2 Other TI Components Used in This Design
  13. 8Revision History

2.10.7 SDFM

Two instances of the Sigma-Delta Filter Module (SDFM) peripheral are routed out from the AM261x MCU to the BoosterPack headers. There are a series of multiplexers along the SDFM signal paths in order to enable multiple BoosterPack header modes. The mux logic and block diagram are shown below:

LP-AM261 SDFM0 Figure 2-24 SDFM0
Note: BP_MUX_SW0_EXOR_SW1 is the output of a logical XOR between BP_MUX_SW_S0 and BP_MUX_SW_S1
Table 2-34 U31 Mux Select
BP_MUX_SW_S0 BP_MUX_SW_S1 BP_MUX_SW0_EXOR_SW1 Mux Output (3A)
0 0 0 MCAN0_TX
0 1 1 SDFM0_D0
1 0 1 SDFM0_D0
1 1 0 MCAN0_TX
Table 2-35 U67 Mux Select
BP_MUX_SW_S0 BP_MUX_SW_S1 Mux Output (1A)
0 0 SPI0_CS0
0 1 PR1_PRU1_GPIO1
1 0 SDFM0_D2
1 1 SPI0_CS0
LP-AM261 SDFM1 Figure 2-25 SDFM1
Table 2-36 U46 Mux Select
BP_MUX_SW_S4 Mux Output (1A)
0 UART3_RXD
1 SDFM1_D0
Table 2-37 U31 Mux Select
BP_MUX_SW_S0 BP_MUX_SW_S1 BP_MUX_SW0_EXOR_SW1 Mux Output (3A)
0 0 0 SPI0_D0
0 1 1 SDFM1_D1
1 0 1 SDFM1_D1
1 1 0 SPI0_D0
Table 2-38 U37 Mux Select
BP_MUX_SW_S1 Mux Output (COM)
0 SDFM1_D2
1 PR1_PRU1_GPIO19
Table 2-39 U80 Mux Select
BP_MUX_SW_S5 Mux Output (COM)
0 SDFM1_D3
1 PR1_PRU1_GPIO3
Table 2-40 U46 Mux Select
BP_MUX_SW_S4 Mux Output (2A)
0 ADC2_AIN3
1 SDFM1_CLK0