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M16C/29 датащи(PDF) 328 Page - Renesas Technology Corp |
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M16C/29 датащи(HTML) 328 Page - Renesas Technology Corp |
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328 / 499 page ![]() 17. CAN Module p u o r G 9 2 / C 6 1 M page 304 8 5 4 f o 7 0 0 2 , 0 3 .r a M 2 1 . 1 . v e R 2 1 1 0 - 1 0 1 0 B 9 0 J E R 17.3.2 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 17.2 shows the examples of bit-rate. Table 17.2 Examples of Bit-rate Calculation of Bit-rate f1 2 ✕ “fCAN division value (Note 1)” ✕ “baud rate prescaler division value (Note 2)” ✕ “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: Baud rate prescaler division value = P + 1 (P: 0 to 15) P: a value selected in the BRP bit in the C0CONR register NOTE: 1. The number in ( ) indicates a value of “fCAN division value” multiplied by “baud rate prescaler division value”. Bit-rate 20MHz 16MHz 10MHz 8MHz 1Mbps 10Tq (1) 8Tq (1) -- 500kbps 10Tq (2) 8Tq (2) 10Tq (1) 8Tq (1) 20Tq (1) 16Tq (1) -- 125kbps 10Tq (8) 8Tq (8) 10Tq (4) 8Tq (4) 20Tq (4) 16Tq (4) 20Tq (2) 16Tq (2) 83.3kbps 10Tq (12) 8Tq (12) 10Tq (6) 8Tq (6) 20Tq (6) 16Tq (6) 20Tq (3) 16Tq (3) 33.3kbps 10Tq (30) 8Tq (30) 10Tq (15) 8Tq (15) 20Tq (15) 16Tq (15) -- |
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