MCU CAN1
The MCU CAN1 port of J721E SoC is connected to the CAN transceiver Mfr. Part# TCAN1042HGVD. A 2-pin
header J34 (68002-202HLF) is provided inline for user probe option. This port does not support WAKE function.
The signals MCU_MCAN1_H and MCU_MCAN1_L are terminated to a 3-pin header J31 (FCI: 68001-403HLF)
with 120E split termination.
The STB signal is an active High signal held high with external pull up by default. The GPIO control from MCU
domain provided to pull the line low.
MAIN CAN0 (Supports WAKE function)
The MAIN CAN0 port of J721E SoC is connected to the CAN transceiver with Wake function supported device
TCAN1043-Q1. A 2-pin header J24 (68002-202HLF) is provided inline for user probe option.
The output of the CAN transceiver is terminated to a 4-pin header J27 (61300411121).
The signals MCAN0_H and MCAN0_L are routed as differential signals with 120E impedance with split
termination. The STB signal is an active low signal held low with integrated pull down by default.
The VCC supply (5V) to the transceiver is derived from a Step-Up converter.
Hardware WAKEn input for the CAN interface is provided using a push-button SW12.
Figure 4-32. CAN Wake Push Button
J721E EVM Hardware Architecture www.ti.com
62 Jacinto7 J721E/DRA829/TDA4VM Evaluation Module (EVM) SPRUIS4D – MAY 2020 – REVISED MARCH 2022
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