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
Features
Software: TI Processor SDK
Linux®
/ RT Linux kernel, Yocto file system, out-of-box demos including
Wi-Fi™
Processing: AM64x with 2x
Arm®
Cortex®
-A53, 4x Arm Cortex-R5, 2x TI PRU_ICSSG
Networking: Wi-Fi (dual-band),
Bluetooth®
/ Bluetooth Low Energy 5.1; 2x RJ-45 Ethernet 1000/100Mbps
Connectivity: 1x Type A USB 3.1 gen1 (SuperSpeed), on-board XDS110 JTAG Emulator and 3x UARTs via micro-USB
Expansion and prototyping: 40-pin Raspberry Pi (RPI4) HATs, PRU-ICSSG Real-Time I/O, and TI-MCU headers
Storage: 2GB LPDDR4
Bootable interfaces on SK: Removable uSD, USB, 16MB OSPI, Ethernet, universal asynchronous receiver/transmitter (UART)