Can Baud Rate Prescalers - Renesas M32R/ECU Series User Manual

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13.2.7 CAN Baud Rate Prescalers

CAN0 Baud Rate Prescaler (CAN0BRP)
CAN1 Baud Rate Prescaler (CAN1BRP)
b0 1 2
0 0 0
b Bit Name
0–7 BRP
This register sets the Tq period of CAN. The CAN baud rate is determined by (Tq period × number of Tq's in one bit).
Tq period = (BRP + 1) / (CPU clock/2)
CAN transfer baud rate =
Number of Tq's in one bit = Synchronization Segment + Propagation Segment
Notes: • Setting H'00 (divide by 1) is inhibited.
• Do not change settings of the CAN Baud Rate Prescaler (CANnBRP) during CAN operation
(CAN Status Register CRS bit = "0").
3 4 5 6
BRP
0 0 0 0
Tq period × number of Tq's in one bit
+ Phase Segment 1 + Phase Segment 2
13.2 CAN Module Related Registers
b7
1
Function
Baud rate prescaler value
1
13-26
CAN MODULE
<Address: H'0080 1016>
<Address: H'0080 1416>
<After reset: H'00>
R
R
32180 Group User's Manual (Rev.1.0)
W
W