Can Control Registers - Renesas M32R/ECU Series User Manual

13

13.2.1 CAN Control Registers

CAN0 Control Register (CAN0CNT)
CAN1 Control Register (CAN1CNT)
b0 1 2
0 0 0
b Bit Name
0–3 No function assigned. Fix to "0".
4 RBO
Return bus off bit
5 TSR
Timestamp counter reset bit
6–7 TSP
Timestamp prescaler bit
8–9 No function assigned. Fix to "0".
10 No function assigned. Fix to "0".
11 FRST
Forcible reset bit
12 BCM
BasicCAN mode bit
13 No function assigned. Fix to "0".
14 LBM
Loopback mode bit
15 RST
CAN reset bit
Note 1: Only writing "1" is effective. Automatically cleared to "0" in hardware.
3 4 5 6
RBO TSR TSP
0 0 0 0
13.2 CAN Module Related Registers
7 8 9 10
FRST
0 0 0 0
Function
0: Enable normal operation
1: Request clearing of error counter
0: Enable count operation
1: Initialize count (to H'0000)
00: Select CAN bus bit clock
01: Select CAN bus bit clock divided by 2
10: Select CAN bus bit clock divided by 3
11: Select CAN bus bit clock divided by 4
0: Negate reset
1: Forcibly reset
0: Disable BasicCAN mode
1: BasicCAN mode
0: Disable loopback function
1: Enable loopback function
0: Negate reset
1: Request reset
13-15
CAN MODULE
<Address: H'0080 1000>
<Address: H'0080 1400>
11 12 13 14
BCM LBM
1 0 0 0
<After reset: H'0011>
32180 Group User's Manual (Rev.1.0)
b15
RST
1
R W
0 0
R(Note 1)
R(Note 1)
R W
0 0
0 0
R W
R W
0 0
R W
R W