SPRUJE8 December   2024 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  Interfaces
      1. 2.9.1 Ethernet Interface
        1. 2.9.1.1 Ethernet Add-on Connectors
      2. 2.9.2 Audio Interfaces
        1. 2.9.2.1 Audio Clocking
        2. 2.9.2.2 McASP
        3. 2.9.2.3 MLB
    10. 2.10 AEC Mapping
      1. 2.10.1 Audio Expansion Connector 1
      2. 2.10.2 Audio Expansion Connector 2
    11. 2.11 Test Points
  7. 3Hardware Design Files
  8. 4Additional Information
    1. 4.1 If You need Assistance
    2. 4.2 Trademarks
  9. 5References
    1. 5.1 Reference Documents
    2. 5.2 Other TI Components Used This Design
  10. 6Revision History

2.10.2 Audio Expansion Connector 2

The following interfaces and IOs are included on Audio Expansion Connector 2 (AEC2):

  • 1 x SPI : SPI1 with two chip selects (SPI1_CS0 and SPI1_CS1)
  • 1 x I2C : I2C5
  • 1 x UART : UART3
  • 1 x PWM: EPWM1_A
  • 1 x Reference Clock Input: AEC2_REFCLKIN
  • 1 x Reference Clock Output: AEC2_REFCLKOUT
  • 1 x MCAN: MCAN1
  • 2 x eCAP: ECAP0 and ECAP3
  • 2 x McASP : McASP2 and McASP3
  • 2 x GPIO: AEC2_GPIO_0 and AEC2_GPIO_1
  • 5V and 1.8V supply voltages (Current limited to 150mA and 250mA)

The Table below lists all the AM275 EVM signals routed to AEC1:

Table 2-17 AEC2 Pinout
Pin Number NET NAME Pin Number NET NAME
1 MCU_PORz 2 VCC_5V0
3 EPWM1_A 4 VCC_5V0
5 NC 6 VCC_5V0
7 DGND 8 DGND
9 ECAP3_IN_APWM_OUT 10 VCC1V8_SYS
11 ECAP0_IN_APWM_OUT 12 VCC1V8_SYS
13 NC 14 NC
15 DGND 16 DGND
17 SPI1_CLK 18 I2C5_SCL_1V8
19 SPI1_D0 20 I2C5_SDA_1V8
21 SPI1_D1 22 DGND
23 SPI1_CS0 24 SPI1_CS1
25 DGND 26 DGND
27 MCASP2_AXR0 28 MCASP2_AXR2
29 MCASP2_AXR1 30 MCASP2_AXR3
31 DGND 32 MCASP2_AXR4
33 AEC2_REFCLKIN 34 MCASP2_AXR5
35 DGND 36 DGND
37 MCASP2_ACLKX 38 NC
39 MCASP2_AFSX 40 NC
41 MCASP2_AFSR 42 AEC2_GPIO0_0
43 MCASP2_ACLKR 44 AEC2_GPIO0_1
45 DGND 46 DGND
47 AEC2_REFCLKOUT 48 NC
49 DGND 50 DGND
51 MCAN1_TX 52 NC
53 MCAN1_RX_R 54 NC
55 RESETSTATZ_1V8 56 NC
57 DGND 58 DGND
59 NC 60 UART3_TXD
61 NC 62 UART3_RXD
63 NC 64 NC
65 DGND 66 DGND
67 MCASP3_AXR0 68 NC
69 MCASP3_AXR1 70 NC
71 MCASP3_AXR2 72 NC
73 MCASP3_AXR3 74 NC
75 DGND 76 DGND
77 MCASP3_ACLKX 78 MCASP3_ACLKR
79 MCASP3_AFSX 80 MCASP3_AFSR