Bit-Rate - Renesas M16C/29 Series Hardware Manual

M16C/29 Group

17.3.2. Bit-rate

Bit-rate depends on f
rate prescaler, and the number of Tq of one bit.
Table 17.2 shows the examples of bit-rate.
Table 17.2 Examples of Bit-rate
Bit-rate
1Mbps
500kbps
125kbps
83.3kbps
33.3kbps
Note: The number in ( ) indicates a value of "f
value".
Calculation of Bit-rate
2 "f division value (Note 1)"
CAN
Note 1: f division value = 1, 2, 4, 8, 16
CAN
f division value: a value selected in the CCLKR register
CAN
Note 2: Baud rate prescaler division value = P + 1 (P: 0 to 15)
P: a value selected in the BRP bit in the C0CONR register
Rev.1.00 Nov 01,2004
REJ09B0101-0100Z
, the division value of the CAN module system clock, the division value of the baud
1
24MHz
12Tq (1) 10Tq (1)
12Tq (2) 10Tq (2)
24Tq (1) 20Tq (1)
12Tq (8) 10Tq (8)
16Tq (6) 20Tq (4)
24Tq (4)
12Tq (12) 10Tq (12)
16Tq (9) 20Tq (6)
24Tq (8)
12Tq (30) 10Tq (30)
24Tq (15) 20Tq (15)
"baud rate prescaler division value (Note 2)"
page 297 of 402
20MHz 16MHz
8Tq (1)
8Tq (2)
16Tq (1)
8Tq (8)
16Tq (4)
- -
8Tq (12)
16Tq (6)
- -
8Tq (30)
16Tq (15)
division value" multiplied by "baud rate prescaler division
CAN
f
1
bit"
17. CAN Module
10MHz 8MHz
- -
10Tq (1) 8Tq (1)
- -
10Tq (4) 8Tq (4)
20Tq (2) 16Tq (2)
- -
10Tq (6) 8Tq (6)
20Tq (3) 16Tq (3)
- -
10Tq (15) 8Tq (15)
- -
"number of Tq of one