參數(shù)資料
型號： ST72C171K2
廠商： 意法半導體
英文描述： 8-BIT MCU WITH 8K FLASH. ADC. WDG. SPI. SCI. TIMERS SPGAS (SOFTWARE PROGRAMMABLE GAIN AMPLIFIERS). OP-AMP
中文描述： 8位8K閃存微控制器。 ADC的。水分散粒劑。的SPI。脊髓損傷。定時器SPGAS（軟件可編程增益放大器）。運放
文件頁數(shù)： 104/152頁
文件大?。?/td> 1384K
代理商： ST72C171K2
ST72C171
104/152
8-BIT A/D CONVERTER (ADC)
(Cont’d)
7.9.6 Register Description
CONTROL/STATUS REGISTER (CSR)
Read/Write
Reset Value: 0000 0000 (00h)
Bit 7 =
COCO
Conversion Complete
This bit is set by hardware. It is cleared by soft-
ware reading the result in the DR register or writing
to the CSR register.
0: Conversion is not complete
1: Conversion can be read from the DR register
Bit 6 =
Reserved.
must always be cleared.
Bit 5 =
ADON
A/D Converter On
This bit is set and cleared by software.
0: A/D converter is switched off
1: A/D converter is switched on
Bit 4 =
Reserved.
must always be cleared.
Bit 3:0 =
CH[3:0]
Channel Selection
These bits are set and cleared by software. They
select the analog input to convert.
*Note
: The number of pins AND the channel selec-
tion varies according to the device. Refer to the de-
vice pinout.
DATA REGISTER (DR)
Read Only
Reset Value: 0000 0000 (00h)
Bit 7:0 =
D[7:0]
Analog Converted Value
This register contains the converted analog value
in the range 00h to FFh.
Note
: Reading this register reset the COCO flag.
7
0
COCO
0
ADON
0
CH3
CH2
CH1
CH0
Channel Pin*
AIN0
AIN1
AIN2
AIN3
AIN4
AIN5
AIN6
AIN7
AIN8
AIN9
AIN10
AIN11
AIN12
AIN13
AIN14
AIN15
CH3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
CH2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
CH1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
CH0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
7
0
D7
D6
D5
D4
D3
D2
D1
D0
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