Can Status Registers - Renesas M32R/ECU Series User Manual

13

13.2.2 CAN Status Registers

CAN0 Status Register (CAN0STAT)
CAN1 Status Register (CAN1STAT)
b0 1 2
BOS EPS
0 0 0
b Bit Name
0 No function assigned. Fix to "0".
1 BOS
Bus off status bit
2 EPS
Error passive status bit
3 CBS
CAN bus error bit
4 BCS
BasicCAN mode status bit
5 No function assigned. Fix to "0".
6 LBS
Loopback status bit
7 CRS
CAN reset status bit
8 RSB
Receive status bit
9 TSB
Transmit status bit
10 RSC
Reception completed status bit
11 TSC
Transmission completed status bit
12–15 MSN
Message slot number bit
3 4 5 6
CBS BCS LBS
0 0 0 0
13.2 CAN Module Related Registers
7 8 9 10
CRS RSB TSB RSC
1 0 0 0
Function
0: Not bus off
1: Bus off state
0: Not error passive
1: Error passive state
0: No error occurred
1: Error occurred
0: Normal mode
1: BasicCAN mode
0: Normal mode
1: Loopback mode
0: Operating
1: Reset
0: Not receiving
1: Receiving
0: Not sending
1: Sending
0: Reception not completed
1: Reception completed
0: Transmission not completed
1: Transmission completed
Number of the message slot which has finished
sending or receiving
0000: Slot 0
0001: Slot 1
0010: Slot 2
0011: Slot 3
0100: Slot 4
0101: Slot 5
0110: Slot 6
0111: Slot 7
1000: Slot 8
1001: Slot 9
1010: Slot 10
1011: Slot 11
1100: Slot 12
1101: Slot 13
1110: Slot 14
1111: Slot 15
13-18
CAN MODULE
<Address: H'0080 1002>
<Address: H'0080 1402>
11 12 13 14
TSC MSN
0 0 0 0
<After reset: H'0100>
32180 Group User's Manual (Rev.1.0)
b15
0
R W
0 0
R –
R –
R –
R –
0 0
R –
R –
R –
R –
R –
R –
R –