Datasheet

V850ES/JG3-H, V850ES/JH3-H CHAPTER 20 CAN CONTROLLER
R01UH0042EJ0500 Rev.5.00 Page 955 of 1513
Aug 12, 2011
(8) CAN0 module information register (C0INFO)
The C0INFO register indicates the status of the CAN module.
After reset: 00H R Address: 03FEC053H
7 6 5 4 3 2 1 0
C0INFO 0 0 0 BOFF TECS1 TECS0 RECS1 RECS0
BOFF Bus-off status bit
0 Not bus-off status (transmit error counter ≤ 255). (The value of the transmit counter is less than 256.)
1 Bus-off status (transmit error counter > 255). (The value of the transmit error counter is 256 or more.)
TECS1 TECS0 Transmission error counter status bit
0 0 The value of the transmission error counter is less than that of the warning level (< 96).
0 1 The value of the transmission error counter is in the range of the warning level (96 to 127).
1 0 Undefined
1 1
The value of the transmission error counter is in the range of the error passive or bus-off
status (≥ 128).
RECS1 RECS0 Reception error counter status bit
0 0 The value of the reception error counter is less than that of the warning level (< 96).
0 1 The value of the reception error counter is in the range of the warning level (96 to 127).
1 0 Undefined
1 1 The value of the reception error counter is in the error passive range (≥ 128).
Caution Be sure to set bits 5 to 7 to “0”.