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PIC16F877ATI/ML 数据表(PDF) 116 Page - Microchip Technology |
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PIC16F877ATI/ML 数据表(HTML) 116 Page - Microchip Technology |
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116 / 234 page ![]() PIC16F87XA DS39582B-page 114 2003 Microchip Technology Inc. TABLE 10-3: BAUD RATES FOR ASYNCHRONOUS MODE (BRGH = 0) BAUD RATE (K) FOSC = 20 MHz FOSC = 16 MHz FOSC = 10 MHz KBAUD % ERROR SPBRG value (decimal) KBAUD % ERROR SPBRG value (decimal) KBAUD % ERROR SPBRG value (decimal) 0.3 - -- - - - - -- 1.2 1.221 1.75 255 1.202 0.17 207 1.202 0.17 129 2.4 2.404 0.17 129 2.404 0.17 103 2.404 0.17 64 9.6 9.766 1.73 31 9.615 0.16 25 9.766 1.73 15 19.2 19.531 1.72 15 19.231 0.16 12 19.531 1.72 7 28.8 31.250 8.51 9 27.778 3.55 8 31.250 8.51 4 33.6 34.722 3.34 8 35.714 6.29 6 31.250 6.99 4 57.6 62.500 8.51 4 62.500 8.51 3 52.083 9.58 2 HIGH 1.221 - 255 0.977 - 255 0.610 - 255 LOW 312.500 - 0 250.000 - 0 156.250 - 0 BAUD RATE (K) FOSC = 4 MHz FOSC = 3.6864 MHz KBAUD % ERROR SPBRG value (decimal) KBAUD % ERROR SPBRG value (decimal) 0.3 0.300 0 207 0.3 0 191 1.2 1.202 0.17 51 1.2 0 47 2.4 2.404 0.17 25 2.4 0 23 9.6 8.929 6.99 6 9.6 0 5 19.2 20.833 8.51 2 19.2 0 2 28.8 31.250 8.51 1 28.8 0 1 33.6 - - - - - - 57.6 62.500 8.51 0 57.6 0 0 HIGH 0.244 - 255 0.225 - 255 LOW 62.500 - 0 57.6 - 0 TABLE 10-4: BAUD RATES FOR ASYNCHRONOUS MODE (BRGH = 1) BAUD RATE (K) FOSC = 20 MHz FOSC = 16 MHz FOSC = 10 MHz KBAUD % ERROR SPBRG value (decimal) KBAUD % ERROR SPBRG value (decimal) KBAUD % ERROR SPBRG value (decimal) 0.3 - -- - - -- - - 1.2 - -- - - -- - - 2.4 - - - - - - 2.441 1.71 255 9.6 9.615 0.16 129 9.615 0.16 103 9.615 0.16 64 19.2 19.231 0.16 64 19.231 0.16 51 19.531 1.72 31 28.8 29.070 0.94 42 29.412 2.13 33 28.409 1.36 21 33.6 33.784 0.55 36 33.333 0.79 29 32.895 2.10 18 57.6 59.524 3.34 20 58.824 2.13 16 56.818 1.36 10 HIGH 4.883 - 255 3.906 - 255 2.441 - 255 LOW 1250.000 - 0 1000.000 0 625.000 - 0 BAUD RATE (K) FOSC = 4 MHz FOSC = 3.6864 MHz KBAUD % ERROR SPBRG value (decimal) KBAUD % ERROR SPBRG value (decimal) 0.3 - --- - - 1.2 1.202 0.17 207 1.2 0 191 2.4 2.404 0.17 103 2.4 0 95 9.6 9.615 0.16 25 9.6 0 23 19.2 19.231 0.16 12 19.2 0 11 28.8 27.798 3.55 8 28.8 0 7 33.6 35.714 6.29 6 32.9 2.04 6 57.6 62.500 8.51 3 57.6 0 3 HIGH 0.977 - 255 0.9 - 255 LOW 250.000 - 0 230.4 - 0 |
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