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HT66F4530 Datasheet(PDF) 148 Page - Holtek Semiconductor Inc

Part # HT66F4530
Description  A/D Flash MCU with Dual Operational Amplifiers
PDF  224 Pages
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Manufacturer  HOLTEK [Holtek Semiconductor Inc]
Direct Link  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT66F4530 Datasheet(HTML) 148 Page - Holtek Semiconductor Inc

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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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