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AT83C5111 数据表(PDF) 58 Page - ATMEL Corporation

部件名 AT83C5111
功能描述  Low Pin Count 8-bit Microcontroller with A/D Converter
PDF  86 Pages
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制造商  ATMEL [ATMEL Corporation]
网页  http://www.atmel.com
标志 ATMEL - ATMEL Corporation

AT83C5111 数据表(HTML) 58 Page - ATMEL Corporation

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AT8xC5111
4190A–8051–11/02
Registers
Table 2. ADCON Register
ADCON (S:F3h)
ADC Control Register
Reset value = X000 0000b
Table 3. ADCLK Register
ADCLK (S:F2h)
ADC Clock Prescaler
Reset value = 0000 0000b
7654
3210
QUIETM
PSIDLE
ADEN
ADEOC
ADSST
SCH2
SCH1
SCH0
Bit Number
Bit Mnemonic
Description
7QUIETM
Pseudo Idle mode (best precision)
Set to put in quiet mode during conversion.
Cleared by hardware after completion of the conversion.
6PSIDLE
Pseudo Idle mode (good precision)
Set to put in idle mode during conversion.
Cleared by hardware after completion of the conversion.
5ADEN
Enable/Standby Mode
Set to enable ADC.
Clear for Standby mode (power dissipation 1 µW).
4ADEOC
End Of Conversion
Set by hardware when ADC result is ready to be read. This flag can
generate an interrupt.
Must be cleared by software.
3ADSST
Start and Status
Set to start an A/D conversion.
Cleared by hardware after completion of the conversion.
2 - 0
SCH2:0
Selection of channel to convert
See Table 41.
7654
3210
-
PRS 6
PRS 5
PRS 4
PRS 3
PRS 2
PRS 1
PRS 0
Bit Number
Bit Mnemonic
Description
7
–
Reserved
Leave this bit at 0.
6 - 0
PRS6:0
Clock Prescaler
f
CONV_CK = fCkADC/(2 * PRS)
if PRS = 0, f
CONV_CK = fCkADC/256



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