參數(shù)資料
型號: ADUC824
廠商: Analog Devices, Inc.
元件分類: 串行ADC
英文描述: MicroConverter, Dual-Channel 16-/24-Bit ADCs with Embedded FLASH MCU
中文描述: MicroConverter的,雙通道ADC的16-/24-Bit與嵌入式閃存MCU
文件頁數(shù): 27/68頁
文件大?。?/td> 1060K
代理商: ADUC824
REV. B
ADuC824
–27–
ADC0CON (Primary ADC Control Register)
Used to configure the Primary ADC for range, channel selection, external Ref enable, and unipolar or bipolar coding.
SFR Address
D2H
Power-On Default Value
07H
Bit Addressable
No
0
F
E
R
X
1
H
C
0
H
C
0
I
N
U
2
N
R
1
N
R
0
N
R
Table V. ADC0CON SFR Bit Designations
Bit
Name
Description
7
6
XREF0
Reserved for Future Use
Primary ADC External Reference Select Bit
Set
by user to enable the Primary ADC to use the external reference via REFIN(+)/REFIN(–).
Cleared
by user to enable the Primary ADC to use the internal bandgap reference (V
REF
= 1.25 V).
Primary ADC Channel Selection Bits
Written by the user to select the differential input pairs used by the Primary ADC as follows:
CH1
CH0
Positive Input Negative Input
0
0
AIN1
AIN2
0
1
AIN3
AIN4
1
0
AIN2
AIN2 (Internal Short)
1
1
AIN3
AIN2
Primary ADC Unipolar Bit.
Set
by user to enable unipolar coding, i.e., zero differential input will result in 000000 hex output.
Cleared
by user to enable bipolar coding, zero differential input will result in 800000 hex output.
Primary ADC Range Bits
Written by the user to select the Primary ADC input range as follows:
RN2
RN1
RN0
Selected Primary ADC Input Range (V
REF
= 2.5 V)
0
0
0
±
20 mV
0
0
1
±
40 mV
0
1
0
±
80 mV
0
1
1
±
160 mV
1
0
0
±
320 mV
1
0
1
±
640 mV
1
1
0
±
1.28 V
1
1
1
±
2.56 V
5
4
CH1
CH0
3
UNI0
2
1
0
RN2
RN1
RN0
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