SPRUIY9C
May 2021 – December 2025
1
Description
Features
4
1
Evaluation Module Overview
1.1
Introduction
1.2
Kit Contents
1.3
Device Information
2
Hardware
2.1
EVM Revisions and Assembly Variants
2.2
Important Usage Notes
2.3
System Description
2.3.1
Functional Block Diagram
2.3.2
Power-On/Off Procedures
2.3.2.1
Power-On Procedure
2.3.2.2
Power-Off Procedure
2.3.3
Peripheral and Major Component Description
2.3.3.1
Clocking
2.3.3.1.1
Ethernet PHY Clock
2.3.3.1.2
AM64x SoC Clock
2.3.3.2
Reset
2.3.3.3
Power
2.3.3.3.1
Power Input
2.3.3.3.2
USB Type-C Interface for Power Input
2.3.3.3.3
Power Fault Indication
2.3.3.3.4
Power Supply
2.3.3.3.5
Power Sequencing
2.3.3.3.6
Power Supply
2.3.3.4
Configuration
2.3.3.4.1
Boot Modes
2.3.3.5
JTAG
2.3.3.6
Test Automation
2.3.3.7
UART Interface
2.3.3.8
Memory Interfaces
2.3.3.8.1
LPDDR4 Interface
2.3.3.8.2
MMC Interface
2.3.3.8.2.1
Micro SD Interface
2.3.3.8.2.2
WiLink Interface
2.3.3.8.2.3
OSPI Interface
2.3.3.8.2.4
Board ID EEPROM Interface
2.3.3.9
Ethernet Interface
2.3.3.9.1
DP83867 PHY Default Configuration
2.3.3.9.2
DP83867 – Power, Clock, Reset, Interrupt and LEDs
2.3.3.9.3
Industrial Application LEDs
2.3.3.10
USB 3.0 Interface
2.3.3.11
PRU Connector
2.3.3.12
User Expansion Connector
2.3.3.13
MCU Connector
2.3.3.14
Interrupt
2.3.3.15
I2C Interface
2.3.3.16
IO Expander (GPIOs)
3
Hardware Design Files
4
Compliance Information
4.1
Regulatory Compliance
5
Additional Information
5.1
Known Issues
5.1.1
Issue 1: LP8733x Max output Capacitance Spec Exceeded on LDO0 and LDO1
5.1.2
Issue 2: LP8733x Output Voltage of 0.9V Exceeds AM64x VDDR_CORE max Voltage Spec of 0.895 V
5.1.3
Issue 3 - SDIO Devices on MMC0 Require Careful Trace Lengths to Meet Interface Timing Requirements
5.1.4
Issue 4 - LPDDR4 Data Rate Limitation in Stressful Conditions
5.1.5
Issue 5 - Junk Character
5.1.6
Issue 6 - Test Power Down Signal Floating
5.1.7
Issue 7 - uSD Boot Not Working
Trademarks
65
6
Revision History
EVM User's Guide
AM64x SK Evaluation Module (EVM)