Renesas M16C User Manual

Rev.1.10    Jul 01, 2005    page 304 of 318
REJ09B0124-0110

M16C/6N Group (M16C/6NK, M16C/6NM)

22. Usage Precaution

This document is under development and its contents are subject to change.

If the Reset bit in the CiCTLR register (i = 0, 1) is changed from “0” (operation mode) to “1” (reset/

initialization mode) in order to place the CAN module from CAN operation mode into CAN reset/initializa-

tion mode, always be sure to check that the State_Reset bit in the CiSTR register is set to “1” (reset mode).

Similarly, if the Reset bit is changed from “1” to “0” in order to place the CAN module from CAN reset/

initialization mode into CAN operation mode, always be sure to check that the State_Reset bit is set to “0”

(operation mode).

The procedure is described below.

  • Change the Reset bit from “0” to “1”.

  • Check that the State_Reset bit is set to “1”.

  • Change the Reset bit from “1” to “0”.

  • Check that the State_Reset bit is set to “0”.