R01UH0823EJ0100 Rev.1.00
Page 1203 of 1823
Jul 31, 2019
RX23W Group
36. CAN Module (RSCAN)
This flag becomes 1 when an ACK error has been detected.
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
b15
b14
b13
b12
b11
b10
b9
b8
b7
b6
b5
b4
b3
b2
b1
b0
—
CRCREG[14:0]
Value after reset:
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Bit
Symbol
Bit Name
Description
R/W
b14 to b0
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