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CAN2-Slide20

Because of the previously mentioned compatibility issue, the CAN 2.0B Extended ID is split into two pieces; a high-order 11-bit field, and a low-order 18-bit field. The ID Extend bit is set to recessive (low) to indicate an Extend ID. Therefore, a Standard ID with a particular ID has a higher priority than an Extended ID that has the same high order 11-bit identifier.

PTM Published on: 2011-11-02