791
Chapter 18
AFCAN Controller
User’s Manual U16580EE3V1UD00
(12) CnBRP - CANn module bit rate prescaler register
The CnBRP register is used to select the CAN protocol layer basic system clock (f
TQ
). The commu-
nication baud rate is set to the CnBTR register.
Figure 18-24:
CAN module clock
Note:
f
CAN
:
clock supplied to CAN
f
CANMOD
:
CAN module system clock
f
TQ
:
CAN protocol layer basic system clock
Caution:
The CnBRP register can be write-accessed only in the initialization mode.
After reset: FFH
R/W
Address: CnBRP <CnRBaseAddr> + 05A
H
7
6
5
4
3
2
1
0
CnBRP
TQPRS7
TQPRS6
TQPRS5
TQPRS4
TQPRS3
TQPRS2
TQPRS1
TQPRS0
TQPRS7 to TQPRS0
CAN protocol layer base system clock (f
TQ
)
0
f
CANMOD
/1
1
f
CANMOD
/2
n
f
CANMOD
/(n+1)
:
:
255
f
CANMOD
/256 (default value)
CCP3 CCP2
Prescaler
CANn module bit-rate prescaler register (CnBRP)
CANn module clock selection register
(CnGMCS)
Baud rate generator
CANn bit-rate
register (CnBTR)
CCP1 CCP0
TQPRS0
f
CAN
f
CANMOD
f
TQ
0
0
0
0
TQPRS1
TQPRS2
TQPRS3
TQPRS4
TQPRS5
TQPRS6
TQPRS7
Содержание MuPD70F3187
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Страница 84: ...84 Chapter 2 Pin Functions User s Manual U16580EE3V1UD00 MEMO ...
Страница 144: ...144 Chapter 3 CPU Functions User s Manual U16580EE3V1UD00 MEMO ...
Страница 192: ...192 Chapter 5 Memory Access Control Function μPD70F3187 only User s Manual U16580EE3V1UD00 MEMO ...
Страница 312: ...312 Chapter 9 16 Bit Timer Event Counter P User s Manual U16580EE3V1UD00 MEMO ...
Страница 534: ...534 Chapter 11 16 bit Timer Event Counter T User s Manual U16580EE3V1UD00 ...
Страница 969: ...969 Chapter 20 Port Functions User s Manual U16580EE3V1UD00 MEMO ...
Страница 970: ...970 Chapter 20 Port Functions User s Manual U16580EE3V1UD00 ...
Страница 976: ...976 Chapter 22 Internal RAM Parity Check Function User s Manual U16580EE3V1UD00 MEMO ...
Страница 984: ...984 Chapter 23 On Chip Debug Function OCD User s Manual U16580EE3V1UD00 MEMO ...
Страница 1006: ...1006 Chapter 24 Flash Memory User s Manual U16580EE3V1UD00 MEMO ...
Страница 1036: ...1036 Chapter 27 Recommended Soldering Conditions User s Manual U16580EE3V1UD00 MEMO ...
Страница 1046: ...1046 Appendix A Index User s Manual U16580EE3V1UD00 MEMO ...
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