M16C1N Datasheet, PDF (159/238 Pages) Renesas Technology Corp – RENESAS 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/10 SERIES

M16C/1N Group
16. CAN Module
16.6.2 Baud Rate
Baud rate depends on XIN, the division value of the CAN module system clock, the division value of
the prescaler for baud rate, and the number of Tq of one bit.
Table 16.2 shows the examples of baud rate.
Table 16.2 Examples of Baud Rate
Baud rate
16 MHz
10 MHz
8 MHz
1 Mbps
8Tq (1)
-
-
500 kbps
8Tq (2)
10Tq (1)
8Tq (1)
16Tq (1)
-
-
125 kbps
8Tq (8)
10Tq (4)
8Tq (4)
16Tq (4)
20Tq (2)
16Tq (2)
83.3 kbps
8Tq (12)
10Tq (6)
8Tq (6)
16Tq (6)
20Tq (3)
16Tq (3)
33.3 kbps
8Tq (30)
10Tq (15)
8Tq (15)
16Tq (15)
-
-
Note 1: The number in ( ) indicates a value of fCAN division value multiplied by division value of the prescaler
for baud rate.
Calculation of Baud Rate
XIN
2 X fCAN division value (Note 1) X division value of prescaler for baud rate (Note 2) X number of Tq of one bit
Note 1: fCAN division value = 1, 2, 4, 8, 16
fCAN division value: a value selected in the CCLKR register
Note 2: Division value of prescaler for baud rate = P + 1 (P: 0 to 15)
P: a value selected in the BRP bit of the C0CONR register
Rev.1.00 Oct 20, 2004 page 147 of 222
REJ09B0007-0100Z