SPRUJ51 june   2023

 

  1.   1
  2. 1Abstract
  3. 2EVM Revisions and Assembly Variants
    1. 2.1 Inside the Box
    2. 2.2 EMC, EMI and ESD Compliance
  4.   Trademarks
  5. 3System Description
    1. 3.1 Key Features
      1. 3.1.1 Processor
      2. 3.1.2 Power Supply
      3. 3.1.3 Memory
      4. 3.1.4 JTAG Emulator
      5. 3.1.5 Supported Interfaces and Peripherals
      6. 3.1.6 Expansion Connectors Headers to Support Application Specific Add On Boards
    2. 3.2 Functional Block Diagram
    3. 3.3 AM62x-Low Power SK EVM Interface Mapping
    4. 3.4 Power ON OFF Procedures
      1. 3.4.1 Power-On Procedure
      2. 3.4.2 Power-Off Procedure
      3. 3.4.3 Power Test Points
    5. 3.5 Peripheral and Major Component Description
      1. 3.5.1  Clocking
      2. 3.5.2  Reset
      3. 3.5.3  OLDI Display Interface
      4. 3.5.4  CSI Interface
      5. 3.5.5  Audio Codec Interface
      6. 3.5.6  HDMI Display Interface
      7. 3.5.7  JTAG Interface
      8. 3.5.8  Test Automation Header
      9. 3.5.9  UART Interface
      10. 3.5.10 USB Interface
        1. 3.5.10.1 USB 2.0 Type A Interface
        2. 3.5.10.2 USB 2.0 Type C Interface
      11. 3.5.11 Memory Interfaces
        1. 3.5.11.1 LPDDR4 Interface
        2. 3.5.11.2 OSPI Interface
        3. 3.5.11.3 MMC Interfaces
          1. 3.5.11.3.1 MMC0 - eMMC Interface
          2. 3.5.11.3.2 MMC1 - Micro SD Interface
          3. 3.5.11.3.3 MMC2 - M2 Key E Interface
        4. 3.5.11.4 EEPROM
      12. 3.5.12 Ethernet Interface
        1. 3.5.12.1 CPSW Ethernet PHY1 Default Configuration
        2. 3.5.12.2 CPSW Ethernet PHY2 Default Configuration
      13. 3.5.13 GPIO Port Expander
      14. 3.5.14 GPIO Mapping
      15. 3.5.15 Power
        1. 3.5.15.1 Power Requirements
        2. 3.5.15.2 Power Input
        3. 3.5.15.3 Power Supply
        4. 3.5.15.4 Power Sequencing
        5. 3.5.15.5 AM62x 17x17 SoC Power
        6. 3.5.15.6 Current Monitoring
      16. 3.5.16 AM62x-Low Power SK EVM User Setup and Configuration
        1. 3.5.16.1 EVM DIP Switches
        2. 3.5.16.2 Boot Modes
        3. 3.5.16.3 User Test LEDs
      17. 3.5.17 Expansion Headers
        1. 3.5.17.1 User Expansion Connector
        2. 3.5.17.2 MCU Connector
        3. 3.5.17.3 PRU Connector
      18. 3.5.18 Push Buttons
      19. 3.5.19 I2C Address Mapping
  6. 4Known Issues and Modifications
  7. 5Revision History
  8. 6IMPORTANT NOTICE AND DISCLAIMER

User Expansion Connector

The AM62x-Low Power SK EVM supports RPi expansion interface using a 40-pin User expansion connector Mfr. Part# PEC20DAAN. Four mounting holes must be oriented with the connector to allow for connection of these boards.

The following interfaces and IOs are included on to the 40 pin User Expansion connector.

  • 2x SPI : SPI0 with 2 CS and SPI2 with 3 CS
  • 2x I2C: SoC_I2C0 and SoC_I2C2
  • 1x UART: UART5
  • 2x PWM: EHRPWM0_A, EHRPWM1_B1xCLK: CLKOUT0
  • 10x GPI0: GPIOs from main domain
  • 5V and 3.3V supply (current limited to 155mA and 500mA)

Each of the power supplies 5V and 3.3V are current limited to 155mA and 500mA respectively. This is achieved by using two individual load switches TPS22902YFPR and TPS22946YZPR. The Enable signals for the load switches is driven via I2C based GPIO Port expander.

GUID-20230519-SS0I-DKH6-QFXP-LF9LPLCBJBB6-low.png
Table 3-24 40 Pin User Expansion Connector (J3)
Pin No.SoC BallNet nameComments
1-VCC3V3_EXP
2-VCC5V0_EXP
3H19EXP_I2C2_SDAI2C SW
4-VCC5V0_EXP
5H18EXP_I2C2_SCLI2C SW
6-DGND
7C14EXP_CLKOUT0
8A15EXP_UART5_TXD
9-DGND
10B13EXP_UART5_RXD
11C17EXP_SPI2_CS1
12D15EXP_SPI2_CS0/EHRPWM0_AMUX
13H17EXP_GPIO0_42
14-DGND
15-EXP_GPIO0_22
16P17EXP_GPIO0_38
17-VCC3V3_EXP
18J20EXP_GPIO0_39
19C12EXP_SPI0_D0
20-DGND
21A14EXP_SPI0_D1
22E18EXP_GPIO0_14
23D12EXP_SPI0_CLK
24C11EXP_SPI0_CS0
25-DGND
26D13EXP_SPI0_CS1
27D14SoC_I2C0_SDA
28E12SoC_I2C0_SCL
29K18EXP_GPIO0_36
30K20EXP_GPIO0_32
31K21EXP_GPIO0_33
32J19EXP_GPIO0_40/ PR0_ECAP0_IN_APWM_OUT
33D18EXP_EHRPWM1_B
34-DGND
35B17EXP_SPI2_D1/ ECAP2_IN_APWM_OUTMUX
36A18EXP_SPI2_CS2
37J18EXP_GPIO0_41
38B18EXP_SPI2_D0MUX
39-EXP_HAT_DETECT
40D16EXP_SPI2_CLKMUX