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HT66F4530 数据表(PDF) 149 Page - Holtek Semiconductor Inc

部件名 HT66F4530
功能描述  A/D Flash MCU with Dual Operational Amplifiers
PDF  224 Pages
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制造商  HOLTEK [Holtek Semiconductor Inc]
网页  http://www.holtek.com
标志 HOLTEK - Holtek Semiconductor Inc

HT66F4530 数据表(HTML) 149 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
SCL
SDA
SCL
SDA
1
0
ACK
Slave Add�ess
SRW
Stop
11
0
10
10
10
01
01
00
I�C ti�e-out
�ounte� sta�t
I�C ti�e-out �ounte� �eset
on SCL negative t�ansition
I2C Time-out
WhenanI2Ctime-outcounteroverflowoccurs,thecounterwillstopandtheSIMTOENbitwill
beclearedtozeroandtheSIMTOFbitwillbesethightoindicatethatatime-outconditionhas
occurred.Thetime-outconditionwillalsogenerateaninterruptwhichusestheI2Cinterruptvector.
WhenanI2Ctime-outoccurs,theI2Cinternalcircuitrywillberesetandtheregisterswillbereset
intothefollowingcondition:
Registers
After I2C Time-out
SIMD� SIMA� SIMC0
No �hange
SIMC1
Reset to POR �ondition
I2C Registers after Time-out
TheSIMTOFflagcanbeclearedbytheapplicationprogram.Thereare64time-outperiodswhich
canbeselectedusingSIMTOSbitfieldintheSIMTOCregister.Thetime-outtimeisgivenbythe
formula:((1~64)×32)/fSUB.Thisgivesatime-outperiodwhichrangesfromabout1msto64ms.
• SIMTOC Register
Bit
7
6
5
4
3
2
1
0
Na�e
SIMTOEN SIMTOF SIMTOS5 SIMTOS4 SIMTOS3 SIMTOS� SIMTOS1 SIMTOS0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
POR
0
0
0
0
0
0
0
0
Bit7
SIMTOEN:SIMI2CTime-outcontrol
0:Disable
1:Enable
Bit6
SIMTOF:SIMI2CTime-outflag
0:Notime-outoccurred
1:Time-outoccurred
Bit5~0
SIMTOS5~SIMTOS0:SIMI2CTime-outperiodselection
I2Ctime-outclocksourceisfSUB/32.
I2Ctime-outtimeisequalto(SIMTOS[5:0]+1)×(32/fSUB).



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