R01UH0823EJ0100 Rev.1.00
Page 1198 of 1823
Jul 31, 2019
RX23W Group
36. CAN Module (RSCAN)
bus off state before the CTRL.CHMDC[1:0] bits are set to 10b, a bus off recovery interrupt request is generated.
If the CPU requests transition to channel reset mode at the same time when the CAN module transitions to channel halt
mode (at bus off entry when the BOM[1:0] bits are 01b or at bus off end when the BOM[1:0] bits are 10b), the CPU’s
request takes precedence. Modify these bits only in channel reset mode.
ERRD Bit (Error Display Mode Select)
This bit is used to control display mode of b14 to b8 in the ERFLL register.
When this bit is 0, only the flags of the first error become 1. If two or more errors occur first, all the flags of detected
errors become 1.
When this bit is 1, all the flags of errors that have occurred become 1 regardless of the error occurrence order. Modify
this bit only in channel reset mode or channel halt mode.
CTME Bit (Communication Test Mode Enable)
Setting this bit to 1 enables communication test mode. Modify this bit only in channel halt mode. This bit becomes 0 in
channel reset mode.
CTMS[1:0] Bits (Communication Test Mode Select)
These bits are used to select a communication test mode. Modify these bits only in channel halt mode. These bits become
0 in channel reset mode.