SPRUJA2 November   2023

 

  1.   1
  2.   Description
  3.   Get Started
  4.   Features
  5.   5
  6. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Device Information
    4. 1.4 Specification
  7. 2Hardware
    1. 2.1  Additional Images
    2. 2.2  Key Features
      1. 2.2.1 Processor
      2. 2.2.2 Power Supply
      3. 2.2.3 Memory
      4. 2.2.4 JTAG/Emulator
      5. 2.2.5 Supported Interfaces and Peripherals
      6. 2.2.6 Expansion Connectors/Headers
    3. 2.3  Interface Mapping
    4. 2.4  Power ON/OFF Procedure
      1. 2.4.1 Power ON Procedure
      2. 2.4.2 Power OFF Procedure
      3. 2.4.3 Test Points
    5. 2.5  Clocking
      1. 2.5.1 Peripheral Ref Clock
    6. 2.6  Reset
    7. 2.7  CSI Interface
    8. 2.8  OLDI Interface
    9. 2.9  DSI Interface
    10. 2.10 Audio Codec Interface
    11. 2.11 HDMI Display Interface
    12. 2.12 JTAG Interface
    13. 2.13 Test Automation Header
    14. 2.14 UART Interface
    15. 2.15 USB Interface
      1. 2.15.1 USB 2.0 Type A Interface
      2. 2.15.2 USB 2.0 Type C Interface
    16. 2.16 Memory Interfaces
      1. 2.16.1 LPDDR4 Interface
      2. 2.16.2 OSPI Interface
      3. 2.16.3 MMC Interfaces
        1. 2.16.3.1 MMC0 - eMMC Interface
        2. 2.16.3.2 MMC1 - Micro SD Interface
        3. 2.16.3.3 MMC2 - M.2 Key E Interface
      4. 2.16.4 Board ID EEPROM
    17. 2.17 Ethernet Interface
      1. 2.17.1 CPSW Ethernet PHY Strapping
      2. 2.17.2 CPSW Ethernet PHY1 Default Configuration
      3. 2.17.3 CPSW Ethernet PHY2 Default Configuration
    18. 2.18 GPIO Port Expander
    19. 2.19 GPIO Mapping
    20. 2.20 Power
      1. 2.20.1 Power Requirement
      2. 2.20.2 Power Input
      3. 2.20.3 Power Supply
      4. 2.20.4 Power Sequencing
      5. 2.20.5 AM62P SoC Power
      6. 2.20.6 Current Monitoring
    21. 2.21 EVM User Setup/Configuration
      1. 2.21.1 DIP Switches
      2. 2.21.2 Boot Modes
      3. 2.21.3 User Test LEDs
    22. 2.22 Expansion Headers
      1. 2.22.1 User Expansion Connector
      2. 2.22.2 MCU Connector
      3. 2.22.3 GPMC NAND (x8) Connector
    23. 2.23 Interrupt
    24. 2.24 I2C Address Mapping
  8. 3Hardware Design Files
  9. 4Compliance Information
    1. 4.1 Compliance and Certifications
  10. 5Additional Information
    1. 5.1 Known Hardware or Software Issues
      1. 5.1.1 Issue 1 - Watchdog Reset
      2. 5.1.2 Issue 2 - Power Down Sequence
    2. 5.2 Trademarks

2.20.1 Power Requirement

AM62P SK EVM can be powered through either of the two USB Type C Connectors,

  • Connector1 (J17) - Power role – SINK, No Data role
  • Connector2 (J19) - Power role – DRP, Data role – USB 2.0 DFP or UFP

The AM62P SK EVM supports voltage input ranges of 5 V - 15 V and 3 A of current. A USB PD controller Mfr. Part# TPS65988DHRSHR is used for PD negotiation upon cable detection to get necessary power required for the board. Connector 1 is configured to be an UFP Port and has no Data role. Connector 2 is configured as a DRP port, and can act as DFP only when the board is being powered by Connector 1. When both the connectors are connected to external power supply, the port with highest PD power contract are selected to power the board.

Table 2-13 Type C Port Power Roles
J17 (UFP) J19 (DRP) Board Power Remarks
Plugged in NC ON - J17 J17 are UFP and only sinks power & J19 can act as DFP if a peripheral is connected.
NC Plugged in ON - J19 J19 is UFP and can only sink power.
Plugged in Plugged in ON- J17 or J19 Board is powered by the port with highest PD power contract.

The PD IC uses a SPI EEPROM to load the necessary configuration on power up so SPI EEPROM can negotiate a power contract with a compatible power source.

The configuration file is loaded to the EEPROM using header J15. Once the EEPROM is programmed the PD obtains the configuration files via SPI communication. Upon loading the configuration file, the PD negotiates with the source to obtain the necessary power requirement.

Note: The EEPROM is pre-programmed with the configuration file for the operation of the PD controller.

Power indication LEDs are provided for both the Type-C connectors for the user to identify which connector is powering the SK EVM board. An external power supply (Type-C output) can be used to power the EVM but is not included as part of the SK EVM kit.

The external power supply requirements (Type-C) are:

Table 2-14 Recommended External Power Supply
DigiKeyPart# Manufacturer Manufacturer Part #
1939-1794-ND GlobTek, Inc. TR9CZ3000USBCG2R6BF2
Q1251-ND Qualtek QADC-65-20-08CB
Note: Minimum voltage: 5 VDC, Recommended minimum current: 3000 mA, Maximum voltage: 15VDC, Maximum current: 5000 mA. Since SK-AM62P-LP implements USB PD for power, the device can negotiate to the highest voltage and current combination supported by both the device and power adapter. Therefore, if the power supply exceeds the maximum voltage and current requirements listed above, then the power supply is acceptable as long as the power adapter is compliant with the USB-C PD specification.