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HT66F4530 数据表(PDF) 148 Page - Holtek Semiconductor Inc |
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HT66F4530 数据表(HTML) 148 Page - Holtek Semiconductor Inc |
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148 / 224 page ![]() Rev. 1.00 148 De�e��e� �1� �01� Rev. 1.00 149 De�e��e� �1� �01� HT66F4530/HT66F4540/HT66F4550 A/D Flash MCU with Dual Operational Amplifiers HT66F4530/HT66F4540/HT66F4550 A/D Flash MCU with Dual Operational Amplifiers Sta�t SIMTOF=1? SET SIMTOEN CLR SIMTOF RETI HAAS=1? HTX=1? SRW=1? Read f�o� SIMD to �elease SCL Line RETI RXAK=1? W�ite data to SIMD to �elease SCL Line CLR HTX CLR TXAK Du��y �ead f�o� SIMD to �elease SCL Line RETI RETI SET HTX W�ite data to SIMD to �elease SCL Line RETI CLR HTX CLR TXAK Du��y �ead f�o� SIMD to �elease SCL Line RETI Yes No No Yes Yes No Yes No No Yes I2C Bus ISR Flow Chart I2C Time-out Control InordertoreducetheproblemofI2Clockupduetoreceptionoferroneousclocksources,atime-out functionisprovided.IftheclocksourcetotheI2Cisnotreceivedforawhile,thentheI2Ccircuitry andregisterswillberesetafteracertaintime-outperiod.Thetime-outcounterstartscountingonan I2Cbus"START"&"addressmatch"condition,andisclearedbyanSCLfallingedge.Beforethe nextSCLfallingedgearrives,ifthetimeelapsedisgreaterthanthetime-outsetupbytheSIMTOC register,thenatime-outconditionwilloccur.Thetime-outfunctionwillstopwhenanI2C"STOP" conditionoccurs. |
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