Users Manual

Table Of Contents
R01UH0823EJ0110 Rev.1.10 Page 1211 of 1852
Nov 30, 2020
RX23W Group 36. CAN Module (RSCAN)
AERR Flag (ACK Error Flag)
This flag becomes 1 when an ACK error has been detected.
CERR Flag (CRC Error Flag)
This flag becomes 1 when a CRC error has been detected.
B1ERR Flag (Recessive Bit Error Flag)
This flag becomes 1 when a dominant bit has been detected though a recessive bit was transmitted.
B0ERR Flag (Dominant Bit Error Flag)
This flag becomes 1 when a recessive bit has been detected though a dominant bit was transmitted.
ADERR Flag (ACK Delimiter Error Flag)
This flag becomes 1 when a form error has been detected in the ACK delimiter during transmission.
36.2.8 Error Flag Register H (ERFLH)
CRCREG[14:0] Bits (CRC Calculation Data)
When the CTRH.CTME bit is set to 1 (communication test mode is enabled), the CRC value calculated based on the
transmit or receive message can be read. When the CTRH.CTME bit is set to 0 (communication test mode is disabled),
these bits are read as 0.
Address(es): RSCAN0.ERFLH 000A 830Eh
b15b14b13b12b11b10b9b8b7b6b5b4b3b2b1b0
CRCREG[14:0]
Value after reset:
0000000000000000
Bit Symbol Bit Name Description R/W
b14 to b0 CRCREG[14:0] CRC Calculation Data A CRC value calculated based on the transmit message
or receive message is indicated.
R
b15 Reserved This bit is read as 0. R