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M16C/6N Group (M16C/6NK, M16C/6NM)
19.8 Bit-rate
Bit-rate depends on f1, the division value of the CAN module system clock, the division value of the baud
rate prescaler, and the number of Tq of one bit.
Table 19.2 shows the examples of bit-rate.
Table 19.2 Examples of Bit-rate
Bit-rate
1Mbps
500kbps
125kbps
83.3kbps
33.3kbps
NOTES:
1. The number in ( ) indicates a value of "fCAN division value" multiplied by "baud rate prescaler division value".
2. 24 MHz is available Normal-ver. only.
19.8.1 Calculation of Bit-rate
2 ✕ "fCAN division value
NOTES:
1. fCAN division value = 1, 2, 4, 8, 16
fCAN division value: a value selected in the CCLKR register
2. Baud rate prescaler division value = P + 1 (P: 0 to 15)
P: a value selected in the BRP bit in the CiCONR register (i = 0, 1)
Rev.2.00
Nov 28, 2005
REJ09B0124-0200
(2)
24MHz
20MHz
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 (6)
12Tq (30)
10Tq (30)
24Tq (15)
20Tq (15)
" ✕ "baud rate prescaler division value
(1)
page 238 of 378
16MHz
8Tq (1)
8Tq (2)
16Tq (1)
8Tq (8)
16Tq (4)
-
-
8Tq (12)
16Tq (6)
-
-
8Tq (30)
16Tq (15)
f1
(2)
19. 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 bit"
-
-
-
-
-
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