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STM8S 데이터시트(PDF) 317 Page - STMicroelectronics |
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STM8S 데이터시트(HTML) 317 Page - STMicroelectronics |
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317 / 467 page ![]() DocID14587 Rev 14 317/467 RM0016 Inter-integrated circuit (I2C) interface 319 Table 50. I2C_CCR values for SCL frequency table (fMASTER = 10 MHz or 16 MHz(1)) I2C Speed I2C frequency (fSCL) fMASTER = 10 MHz fMASTER= 16 MHz in Hz Actual (Hz) % Error (%) I2C_CCR (h) Duty cycle bit Actual (Hz) % Error (%) I2C_CCR (h) Duty cycle bit Fast speed 400000 400000 0 1 1 410256.41 2.56 D 0 370000 370370.37 0.10 9 0 380952.38 2.96 E 0 350000 370370.37 5.82 9 0 355555.56 1.59 F 0 320000 333333.33 4.17 A 0 320000 0 2 1 300000 303030.30 1.01 B 0 313725.49 4.57 11 0 270000 277777.78 2.88 C 0 280701.75 3.96 13 0 250000 256410.26 2.56 D 0 253968.25 1.59 15 0 220000 222222.22 1.01 F 0 222222.22 1.01 18 0 200000 200000 0 2 1 205128.20 2.56 1A 0 170000 175438.60 3.20 13 0 172043.01 1.20 1F 0 150000 151515.15 1.01 16 0 152380.95 1.59 23 0 120000 123456.79 2.88 1B 0 121212.12 1.01 2C 0 Standard speed 100000 100000 0 32 No impact 100000 0 50 No impact 50000 50000 0 64 50000 0 A0 30000 30120.48 0.40 A6 30075.19 0.25 10A 20000 20000 0 FA 20000 0 190 1. The following table gives the values to be written in the I2C_CCR register to obtain the required I²C SCL line frequency |
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