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User’s Guide
AM64x/AM243x EVM User's Guide
Table of Contents
1 Introduction ............................................................................................................................................................................. 3
1.1 EVM Revisions and Assembly Variants............................................................................................................................. 4
1.2 Inside the Box.................................................................................................................................................................... 4
2 Important Usage Notes ........................................................................................................................................................... 4
2.1 Power-On Usage Note....................................................................................................................................................... 4
2.2 EMC, EMI, and ESD compliance....................................................................................................................................... 4
3 System Description ................................................................................................................................................................ 5
3.1 Key Features...................................................................................................................................................................... 6
3.2 Functional Block Diagram.................................................................................................................................................. 8
3.3 Power-On/Off Procedures.................................................................................................................................................. 9
3.3.1 Power-On Procedure................................................................................................................................................... 9
3.3.2 Power-Off Procedure................................................................................................................................................. 10
3.4 Peripheral and Major Component Description.................................................................................................................. 11
3.4.1 Clocking..................................................................................................................................................................... 11
3.4.1.1 Ethernet PHY Clock............................................................................................................................................ 11
3.4.1.2 AM64x/AM243x Clock......................................................................................................................................... 11
3.4.1.3 PCIe Clock.......................................................................................................................................................... 11
3.4.2 Reset......................................................................................................................................................................... 12
3.4.3 Power........................................................................................................................................................................ 13
3.4.3.1 Power Input......................................................................................................................................................... 13
3.4.3.2 Reverse Polarity Protection................................................................................................................................ 13
3.4.3.3 Current Monitoring.............................................................................................................................................. 13
3.4.3.4 Power Supply...................................................................................................................................................... 14
3.4.3.5 Power Sequencing.............................................................................................................................................. 16
3.4.3.6 AM64x/AM243x Power....................................................................................................................................... 17
3.4.4 Configuration............................................................................................................................................................. 18
3.4.4.1 Boot Modes......................................................................................................................................................... 18
3.4.5 JTAG.......................................................................................................................................................................... 22
3.4.6 Test Automation......................................................................................................................................................... 25
3.4.7 UART Interfaces........................................................................................................................................................ 28
3.4.8 Memory Interfaces..................................................................................................................................................... 29
3.4.8.1 DDR4 Interface................................................................................................................................................... 29
3.4.8.2 MMC Interfaces................................................................................................................................................... 30
3.4.8.3 OSPI Interface.................................................................................................................................................... 31
3.4.8.4 SPI EEPROM Interface....................................................................................................................................... 32
3.4.8.5 Board ID EEPROM Interface.............................................................................................................................. 32
3.4.9 Ethernet Interface...................................................................................................................................................... 33
3.4.9.1 DP83867 PHY Default Configuration.................................................................................................................. 35
3.4.9.2 DP83869 PHY Default Configuration.................................................................................................................. 35
3.4.9.3 Ethernet LED...................................................................................................................................................... 41
3.4.10 Display Interface...................................................................................................................................................... 42
3.4.11 USB 2.0 Interface..................................................................................................................................................... 43
3.4.12 PCIe Interface.......................................................................................................................................................... 43
3.4.13 High Speed Expansion Interface............................................................................................................................. 45
3.4.14 CAN Interface.......................................................................................................................................................... 53
3.4.15 Interrupt................................................................................................................................................................... 54
3.4.16 ADC Interface.......................................................................................................................................................... 54
3.4.17 Safety Connector..................................................................................................................................................... 55
3.4.18 SPI Interfaces.......................................................................................................................................................... 55
3.4.19 I2C Interfaces.......................................................................................................................................................... 55
3.4.20 FSI Interface............................................................................................................................................................ 57
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SPRUJ63 – SEPTEMBER 2022
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AM64x/AM243x EVM User's Guide 1
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