User’s Guide
Jacinto7 J721E/DRA829/TDA4VM Evaluation Module
(EVM)
ABSTRACT
This technical user's guide describes the hardware architecture and configuration options of the J721E/DRA929/
TDA4VM EVM.
Table of Contents
1 Introduction.............................................................................................................................................................................4
1.1 Key Features......................................................................................................................................................................4
1.2 Thermal Compliance.......................................................................................................................................................... 5
1.3 REACH Compliance...........................................................................................................................................................6
1.4 EMC, EMI, and ESD Compliance...................................................................................................................................... 6
2 J721E EVM Overview..............................................................................................................................................................6
2.1 J721E EVM Board Identification........................................................................................................................................ 8
2.2 J721E SOM Component Identification............................................................................................................................... 9
2.3 Jacinto7 Common Processor Components Identification................................................................................................ 10
2.4 Quad Ethernet Components Identification........................................................................................................................11
3 EVM User Setup/Configuration............................................................................................................................................12
3.1 Power Requirements........................................................................................................................................................12
3.2 Power ON Switch and Power LEDs................................................................................................................................. 13
3.3 EVM Reset/Interrupt Push Buttons.................................................................................................................................. 17
3.4 EVM DIP Switches........................................................................................................................................................... 18
3.5 EVM UART/COM Port Mapping.......................................................................................................................................22
3.6 JTAG Emulation............................................................................................................................................................... 23
4 J721E EVM Hardware Architecture..................................................................................................................................... 26
4.1 J721E EVM Hardware Top level Diagram........................................................................................................................26
4.2 J721E EVM Interface Mapping........................................................................................................................................ 28
4.3 I2C Address Mapping.......................................................................................................................................................29
4.4 GPIO Mapping................................................................................................................................................................. 30
4.5 Power Supply................................................................................................................................................................... 31
4.6 Reset................................................................................................................................................................................38
4.7 Clock................................................................................................................................................................................ 39
4.8 Memory Interfaces........................................................................................................................................................... 42
4.9 MCU Ethernet Interface................................................................................................................................................... 48
4.10 QSGMII Ethernet Interface.............................................................................................................................................50
4.11 PCIe Interface.................................................................................................................................................................52
4.12 USB Interface.................................................................................................................................................................58
4.13 CAN Interface.................................................................................................................................................................61
4.14 FPD Interface (Audio Deserializer)................................................................................................................................ 64
4.15 FPD Panel Interface (DSI Video Serializer)................................................................................................................... 65
4.16 Display Serial Interface (DSI) FPC.................................................................................................................................66
4.17 Audio Interface............................................................................................................................................................... 66
4.18 Display Port Interface.....................................................................................................................................................68
4.19 MLB Interface.................................................................................................................................................................68
4.20 I3C Interface...................................................................................................................................................................70
4.21 ADC Interface.................................................................................................................................................................70
4.22 RTC Interface.................................................................................................................................................................71
4.23 Apple Authentication Header......................................................................................................................................... 72
4.24 EVM Expansion Connectors.......................................................................................................................................... 73
4.25 ENET Expansion Connector.......................................................................................................................................... 77
www.ti.com Table of Contents
SPRUIS4D – MAY 2020 – REVISED MARCH 2022
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