HD6432646 Hitachi, HD6432646 Datasheet - Page 572

• Manufacturer Part Number: HD6432646
• Description: (HD64F264x Series) 16-Bit Microcomputer
• Manufacturer: Hitachi

15.2.3
The bit configuration register (BCR) is a 16-bit readable/writable register that is used to set CAN
bit timing parameters and the baud rate prescaler.
Bits 15 and 14—Resynchronization Jump Width (SJW): These bits set the bit synchronization
range.
Bit 15:
BCR7
0
1
Bits 13 to 8—Baud Rate Prescaler (BRP): These bits are used to set the CAN bus baud rate.
Bit 13:
BCR5
0
0
0
1
538
Initial value:
Initial value:
BCR
Bit Configuration Register (BCR)
Bit 12:
BCR4
0
0
0
1
Bit 14:
BCR6
0
1
0
1
R/W:
R/W:
Bit:
Bit:
Bit 11:
BCR3
0
0
0
1
BCR15
BCR7
R/W
R/W
15
0
7
0
Description
Bit synchronization width = 1 time quantum
Bit synchronization width = 2 time quanta
Bit synchronization width = 3 time quanta
Bit synchronization width = 4 time quanta
Bit 10:
BCR2
0
0
0
1
BCR14
BCR6
R/W
R/W
14
0
6
0
Bit 9:
BCR1
0
0
1
1
BCR13
BCR5
R/W
R/W
13
0
5
0
Bit 8:
BCR0
0
1
0
1
BCR12
BCR4
R/W
R/W
12
0
4
0
Description
2
4
6
128
BCR11
BCR3
R/W
R/W
11
0
3
0
system clock
system clock
system clock
system clock
BCR10
BCR2
R/W
R/W
10
0
2
0
BCR1
BCR9
R/W
R/W
9
0
1
0
(Initial value)
(Initial value)
BCR0
BCR8
R/W
R/W
8
0
0
0