upd70f3422gj-gae-qs-ax Renesas Electronics Corporation., upd70f3422gj-gae-qs-ax Datasheet - Page 693
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upd70f3422gj-gae-qs-ax
Manufacturer Part Number
upd70f3422gj-gae-qs-ax
Description
32-bit Single-chip Microcontroller
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.UPD70F3422GJ-GAE-QS-AX.pdf
(930 pages)
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CAN Controller (CAN)
After reset: FFH
After reset: 370FH R/W
Figure 19-23
CnBRP
Caution
f
CAN
Note
(12)
(13)
TQPRS7
7
CnBRP - CANn module bit rate prescaler register
The CnBRP register is used to select the CAN protocol layer base clock (f
The communication baud rate is set to the CnBTR register.
CAN module clock
f
f
The CnBRP register can be write-accessed only in the initialization mode.
CnBTR - CANn module bit rate register
The CnBTR register is used to control the data bit time of the communication
baud rate.
Preliminary User’s Manual U17566EE1V2UM00
R/W
CANMOD
TQ
Prescaler
:
TQPRS7 to
TQPRS0
TQPRS6
:
255
0
1
n
:
Address: CnBRP <CnRBaseAddr> + 05A
Address: CnBTR <CnRBaseAddr> + 05C
6
0
CANn module clock selection register
CAN module system clock
CAN protocol layer basic system clock
TQPRS7
f
CANMOD
0
TQPRS5
CAN protocol layer base system clock (f
f
f
f
f
TQPRS6
CANMOD
CANMOD
CANMOD
CANMOD
CANn module bit-rate prescaler register (CnBRP)
5
:
0
Baud rate generator
/1
/2
/(n+1)
/256 (default value)
TQPRS5
0
TQPRS4
CCP3 CCP2
4
(CnGMCS)
TQPRS4
TQPRS3
TQPRS3
f
TQ
CCP1 CCP0
3
TQPRS2
H
H
register (CnBTR)
CANn bit-rate
TQPRS2
2
TQPRS1
TQ
)
TQPRS1
TQPRS0
1
Chapter 19
TQPRS0
0
TQ
693
).
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