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| 型号： | USB-EA-CONVZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 22/68页 |
| 文件大小： | 0K |
| 描述： | SUPPORT BOARD ADUC8XX |
| 标准包装： | 1 |
| 类型： | 仿真器 |
| 适用于相关产品： | ADuC8xx |
| 所含物品： | 模块 |
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REV. B
ADuC824
–29–
ICON (Current Sources Control Register)
Used to control and configure the various excitation and burnout current source options available on-chip.
SFR Address
D5H
Power-On Default Value
00H
Bit Addressable
No
—O
BC
I
1
C
D
AC
I
0
C
D
AN
I
P
2
IN
I
P
1
IN
E
2
IN
E
1
I
Table VIII. ICON SFR Bit Designations
Bit
Name
Description
7
—
Reserved for Future Use
6
BO
Burnout Current Enable Bit
Set by user to enable both transducer burnout current sources in the primary ADC signal paths.
Cleared by user to disable both transducer burnout current sources.
5
ADC1IC
Auxiliary ADC Current Correction Bit
Set by user to allow scaling of the Auxiliary ADC by an internal current source calibration word.
4
ADC0IC
Primary ADC Current Correction Bit
Set by user to allow scaling of the Primary ADC by an internal current source calibration word.
3
I2PIN
*
Current Source-2 Pin Select Bit
Set by user to enable current source-2 (200
A) to external pin 3 (P1.2/DAC/IEXC1).
Cleared by user to enable current source-2 (200
A) to external pin 4 (P1.3/AIN5/IEXC2).
2
I1PIN
*
Current Source-1 Pin Select Bit
Set by user to enable current source-1 (200
A) to external pin 4 (P1.3/AIN5/IEXC2).
Cleared by user to enable current source-1 (200
A) to external pin 3 (P1.2/DAC/IEXC1).
1
I2EN
Current Source-2 Enable Bit
Set by user to turn on excitation current source-2 (200
A).
Cleared by user to turn off excitation current source-2 (200
A).
0
I1EN
Current Source-1 Enable Bit
Set by user to turn on excitation current source-1 (200
A).
Cleared by user to turn off excitation current source-1 (200
A).
*Both current sources can be enabled to the same external pin, yielding a 400
A current source.
ADC0H/ADC0M/ADC0L (Primary ADC Conversion Result Registers)
These three 8-bit registers hold the 24-bit conversion result from the Primary ADC.
SFR Address
ADC0H
High Data Byte
DBH
ADC0M
Middle Data Byte
DAH
ADC0L
Low Data Byte
D9H
Power-On Default Value
00H
All Three registers
Bit Addressable
No
All Three registers
ADC1H/ADC1L (Auxiliary ADC Conversion Result Registers)
These two 8-bit registers hold the 16-bit conversion result from the Auxiliary ADC.
SFR Address
ADC1H
High Data Byte
DDH
ADC1L
Low Data Byte
DCH
Power-On Default Value
00H
Both Registers
Bit Addressable
No
Both Registers
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