Table of Contents
Advertisement
Chapter 18
(12)
Access
Address
Initial Value
Figure 18-24
Note
Caution
580
CnBRP - CANn module bit rate prescaler register
The CnBRP register is used to select the CAN protocol layer basic system
clock (f
). The communication baud rate is set to the CnBTR register.
TQ
This register can be read/written in 8-bit units.
<CnRBaseAddr> + 05A
FF
. The register is initialized by any reset.
H
7
6
TQPRS7 TQPRS6 TQPRS5 TQPRS4 TQPRS3 TQPRS2 TQPRS1 TQPRS0
TQPRS7 to TQPRS0 CAN protocol layer base system clock (f
0
1
n
:
255
f
CAN
Prescaler
CAN module clock
f
:
clock supplied to CAN
CAN
f
: CAN module system clock
CANMOD
f
:
CAN protocol layer basic system clock
TQ
The CnBRP register can be write-accessed only in the initialization mode.
User's Manual U18743EE1V2UM00
H
5
4
3
f
/1
CANMOD
f
/2
CANMOD
f
/(n+1)
CANMOD
:
f
/256 (default value)
CANMOD
CANn module clock selection register
(CnGMCS)
0
0
0
0
CCP3 CCP2
f
CANMOD
Baud rate generator
TQPRS5
TQPRS4
TQPRS7
TQPRS6
CANn module bit-rate prescaler register (CnBRP)
CAN Controller (CAN)
2
1
)
TQ
CCP1 CCP0
f
TQ
CANn bit-rate
register (CnBTR)
TQPRS2
TQPRS1
TQPRS3
TQPRS0
0
Advertisement
Table of Contents
