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Can interface – Kontron SMARC-sA3874i User Manual

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User’s Guide

3.2.22 CAN Interface

There are two CAN buses defined in the ULP-COM specification: CAN0 & CAN1. The sA3874i supports both
CAN buses. The CAN bus interface signals on the ULP-COM sA3874i edge connector are shown below:

ULP-COM sA3874i Edge finger

TI Cortex A8 CPU

Net Name

Notes

Pin #

Pin Name

Pin #

Pin Name

P143

CAN0_TX

AH6

DCAN0_TX

I2C_PM_CK/I2C0_CK

Power management
I2C bus clock

P144

CAN0_RX

AG6

DCAN0_RX

I2C_PM_DAT/I2C0_DAT

Power management
I2C bus data

P145

CAN1_TX

AE6

DCAN1_TX

I2C _GP_CK/I2C2_CK

General purpose I2C
bus clock

P146

CAN1_RX

AF5

DCAN1_RX

I2C _GP_DAT/I2C2_DAT

General purpose I2C
bus data