Embedian SMARC-iMX8M Series, User Manual, Page: 83 / 174

Embedian, Inc.
83
SMARC-iMX8M Computer on Module User’s Manual v.1.0
2.1.17. CAN Bus Interface
The Controller Area Network ( CAN ) is a serial communications protocol
which efficiently supports distributed real‐time control with a high level of
security. The
SMARC‐iMX8M module implements two CAN bus interfaces
from Microchip MCP2515 SPI to CAN interface IC.
The SPI bus used to interface with MCP2515 CAN controller is SPI0 . The chip
select SS2# is reserved for CAN0 and SS3# is reserved for CAN1 . Chip selects
SS0# and SS1# are connected to MXM golden finger connector for users to
use. The logic level for CAN0/1 TX/RX is 1.8V as defined in SMARC 2.0.