ADUC816 Analog Devices, ADUC816 Datasheet - Page 29

• Manufacturer Part Number: ADUC816
• Description: Precision Analog Microcontroller: 1MIPS 8052 MCU + 8kB Flash + Dual 16-Bit ADC + 12-Bit DAC
• Manufacturer: Analog Devices

Specifications of ADUC816

• Mcu Core: 8052
• Mcu Speed (mips): 1.3
• Sram (bytes): 256Bytes
• Gpio Pins: 34
• Adc # Channels: 4

REV. A
ICON (Current Sources Control Register)
Used to control and configure the various excitation and burnout current source options available on-chip.
SFR Address
Power-On Default Value
Bit Addressable
Bit
7
6
5
4
3
2
1
0
ADC0H/ADC0M (Primary ADC Conversion Result Registers)
These two 8-bit registers hold the 16-bit conversion result from the Primary ADC.
SFR Address
Power-On Default Value
Bit Addressable
ADC1H/ADC1L (Auxiliary ADC Conversion Result Registers)
These two 8-bit registers hold the 16-bit conversion result from the Auxiliary ADC.
SFR Address
Power-On Default Value
Bit Addressable
Both current sources can be enabled to the same external pin, yielding a 400 μA current source.
-
- -
Name
---
BO
ADC1IC
ADC0IC
I2PIN
I1PIN
I2EN
I1EN
B
O
ADC0H
ADC0M
00H
No
ADC1H
ADC1L
00H
No
D5H
00H
No
Description
Reserved for Future Use.
Burnout Current Enable Bit.
Auxiliary ADC Current Correction Bit.
Primary ADC Current Correction Bit.
Current Source-2 Pin Select Bit.
Current Source-1 Pin Select Bit.
Current Source-2 Enable Bit.
Current Source-1 Enable Bit.
A
D
by user to enable both transducer burnout current sources in the primary ADC signal paths.
by user to allow scaling of the Auxiliary ADC by an internal current source calibration word.
by user to allow scaling of the Primary ADC by an internal current source calibration word.
by user to enable current source-2 (200 μA) to external Pin 3 (P1.2/DAC/IEXC1).
by user to enable current source-1 (200 μA) to external Pin 4 (P1.3/AIN5/IEXC2).
by user to turn on excitation current source-2 (200 μA).
by user to turn on excitation current source-1 (200 μA).
C
I 1
by user to disable both transducer burnout current sources.
by user to enable current source-2 (200 μA) to external Pin 4 (P1.3/AIN5/IEXC2).
by user to enable current source-1 (200 μA) to external Pin 3 (P1.2/DAC/IEXC1).
by user to turn off excitation current source-2 (200 μA).
by user to turn off excitation current source-1 (200 μA).
C
Table VIII. ICON SFR Bit Designations
A
High Data Byte
Middle Data Byte
Both Registers
Both Registers
High Data Byte
Low Data Byte
Both Registers
Both Registers
D
C
I 0
C
2 I
P
I
N
DBH
DAH
DDH
DCH
1 I
P
I
N
2 I
E
N
1 I
E
N