NEC V850ES/F 3-L Series User Manual page 575

CAN Controller (CAN)
(8)
Access
Address
Initial Value
CnINFO - CANn module information register
The CnINFO register indicates the status of the CAN module.
This register is read-only in 8-bit units.
<CnRBaseAddr> + 053
00 . The register is initialized by any reset.
H
7 6
0 0
BOFF Bus-off state bit
Not bus-off state (transmit error counter ≤ 255). (The value of the transmit
0
error counter is less than 256.)
Bus-off state (transmit error counter > 255). (The value of the transmit
1
error counter is 256 or more.)
TECS1 TECS0 Transmission error counter status bit
The value of the transmission error counter is less than that of
0 0
the warning level (< 96).
The value of the transmission error counter is in the range of
0 1
the warning level (96 to 127).
1 0 Undefined
The value of the transmission error counter is in the range of
1 1
the error passive or bus-off status (≥ 128).
RECS1 RECS0 Reception error counter status bit
The value of the reception error counter is less than that of the
0 0
warning level (< 96).
The value of the reception error counter is in the range of the
0 1
warning level (96 to 127).
1 0 Undefined
The value of the reception error counter is in the error passive
1 1
range (≥ 128).
User's Manual U18743EE1V2UM00
H
5 4 3
0 BOFF TECS1
Chapter 18
2 1
TECS0 RECS1 RECS0
0
575