SPRUJE8C December   2024  – June 2025 AM2752-Q1 , AM2754-Q1

 

  1.   1
  2.   Description
  3.   Features
  4.   4
  5. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Preface Read This First
      1. 1.2.1 Important Usage Notes
    3. 1.3 Kit Contents
    4. 1.4 Device Information
      1. 1.4.1 Security
    5. 1.5 Audio Expansion Connectors
  6. 2Hardware
    1. 2.1  Component Identification
    2. 2.2  Power Requirements
      1. 2.2.1 Power Input Using USB Type-C Connector
      2. 2.2.2 Power Status LEDs
      3. 2.2.3 Power Tree
      4. 2.2.4 Power Sequence
      5. 2.2.5 PMIC
    3. 2.3  Reset
    4. 2.4  Clock
    5. 2.5  Boot Mode Selection
    6. 2.6  Header Information
    7. 2.7  Push Buttons
    8. 2.8  Switches
    9. 2.9  GPIO Mapping
    10. 2.10 Interfaces
      1. 2.10.1  Memory Interface
        1. 2.10.1.1 OSPI Interface
        2. 2.10.1.2 Board ID EEPROM
        3. 2.10.1.3 MMC0 Interface
        4. 2.10.1.4 HYPERRAM
      2. 2.10.2  Ethernet Interface
        1. 2.10.2.1 Ethernet Add-on Connectors
      3. 2.10.3  Audio Interfaces
        1. 2.10.3.1 Audio Clocking
        2. 2.10.3.2 McASP
        3. 2.10.3.3 MLB
      4. 2.10.4  I2C Interface
      5. 2.10.5  SPI
      6. 2.10.6  UART
      7. 2.10.7  MCAN
      8. 2.10.8  JTAG
      9. 2.10.9  USB
      10. 2.10.10 ADC
    11. 2.11 AEC Mapping
      1. 2.11.1 Audio Expansion Connector 1
      2. 2.11.2 Audio Expansion Connector 2
    12. 2.12 Test Points
  7. 3Hardware Design Files
  8. 4Additional Information
    1. 4.1 If You need Assistance
    2. 4.2 Trademarks
    3. 4.3 Rev. E2 Design Changes
  9. 5References
    1. 5.1 Reference Documents
    2. 5.2 Other TI Components Used This Design
  10. 6Revision History

2.11.1 Audio Expansion Connector 1

The following interfaces and IOs are included on Audio Expansion Connector 1 (AEC1):

  • 1 x SPI : SPI0 with two chip selects (SPI0_CS0 and SPI0_CS1)
  • 1 x I2C : I2C3
  • 1 x UART : UART2
  • 2 x PWM: EPWM0_A and EPWM0_B
  • 1 x Reference Clock Input: AEC1_REFCLKIN
  • 1 x Reference Clock Output: AEC1_REFCLKOUT
  • 1 x MCAN: MCAN4
  • 2 x eCAP: ECAP1 and ECAP2
  • 2 x McASP : McASP0 and McASP4
  • 2 x GPIO: AEC1_GPIO_0 and AEC1_GPIO_1
  • 5V and 1.8V supply voltages (Current limited to 150mA and 250mA)

Table 2-25 lists all the AM275 EVM signals routed to AEC1.

Table 2-24 AEC1 Pinout
Pin Number Net Name Pin Number Net Name
1 MCU_PORz 2 VCC_5V0
3 EPWM0_A 4 VCC_5V0
5 EPWM0_B 6 VCC_5V0
7 DGND 8 DGND
9 ECAP1_IN_APWM_OUT 10 VCC1V8_SYS
11 ECAP2_IN_APWM_OUT 12 VCC1V8_SYS
13 NC 14 NC
15 DGND 16 DGND
17 SPI0_CLK 18 I2C3_SCL_1V8
19 SPI0_D0 20 I2C3_SDA_1V8
21 SPI0_D1 22 DGND
23 SPI0_CS0 24 SPI0_CS1
25 DGND 26 DGND
27 MCASP0_AXR0 28 MCASP0_AXR2
29 MCASP0_AXR1 30 MCASP0_AXR3
31 DGND 32 MCASP0_AXR4
33 AEC1_REFCLKIN 34 MCASP0_AXR5
35 DGND 36 DGND
37 MCASP0_ACLKX 38 MCASP0_AXR7
39 MCASP0_AFSX 40 MCASP0_AXR9
41 MCASP0_AFSR 42 AEC1_GPIO0_0
43 MCASP0_ACLKR 44 AEC1_GPIO0_1
45 DGND 46 DGND
47 AEC1_REFCLKOUT 48 NC
49 DGND 50 DGND
51 MCAN4_TX 52 NC
53 MCAN4_RX_R 54 NC
55 RESETSTATZ_1V8 56 NC
57 DGND 58 DGND
59 NC 60 UART2_TXD
61 NC 62 UART2_RXD
63 NC 64 NC
65 DGND 66 DGND
67 MCASP4_AXR0 68 NC
69 MCASP4_AXR3 70 NC
71 MCASP4_AXR4 72 NC
73 MCASP4_AXR5 74 NC
75 DGND 76 DGND
77 MCASP4_ACLKX 78 MCASP4_ACLKR
79 MCASP4_AFSX 80 MCASP4_AFSR