ARM7TDMI based embedded microprocessors have already been popularly used in the industrial control, automotive, electronics fields.The Controller Area Network (CAN) bus is also widespread in these areas.However, CAN bus controller is not integrated in most of the ARM7TDMI chips.In this paper, we use the SJA1000 by Philips as a standalone CAN controller and extend the bus interface of ARM and CAN controller. We analyze our design of timing and combinational logic circuits in detail.Also, the possibility of C...