32182 Datasheet, PDF (482/755 Pages) Renesas Technology Corp – 32-BIT RISC SINGLE-CHIP MICROCOMPUTER M32R FAMILY / M32R/ECU SERIES

13
CAN MODULE
13.2 CAN Module Related Registers
13.2.1 CAN Control Registers
CAN0 Control Register (CAN0CNT)
CAN1 Control Register (CAN1CNT)
<Address: H’0080 1000>
<Address: H’0080 1400>
b0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 b15
RBO TSR
TSP
FRST BCM
LBM RST
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
1
<After reset: H’0011>
b
Bit Name
Function
RW
0–3
No function assigned. Fix to "0".
00
4
RBO
Return bus off bit
0: Enable normal operation
1: Request clearing of error counter
R(Note 1)
5
TSR
Timestamp counter reset bit
0: Enable count operation
1: Initialize count (to H’0000)
R(Note 1)
6–7
TSP
Timestamp prescaler bit
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
RW
8-10
No function assigned. Fix to "0".
00
11
FRST
Forcible reset bit
0: Negate reset
1: Forcibly reset
RW
12
BCM
BasicCAN mode bit
0: Disable BasicCAN mode
1: BasicCAN mode
RW
13
No function assigned. Fix to "0".
00
14
LBM
Loopback mode bit
0: Disable loopback function
1: Enable loopback function
RW
15
RST
0: Negate reset
CAN reset bit
1: Request reset
Note 1: Only writing "1" is effective. Automatically cleared to "0" in hardware.
RW
13-15
32182 Group User’s Manual (Rev.1.0)