aduc847bs8-3 Analog Devices, Inc., aduc847bs8-3 Datasheet - Page 26

• Manufacturer Part Number: aduc847bs8-3
• Description: Microconverter, 10-channel 24-bit Adc With Embedded 62kb Flash Mcu
• Manufacturer: Analog Devices, Inc.

Preliminary Technical Data
ADCCON2 (ADC Channel Select Register)
ADCCON2 is used to select the channel for the ADC
ADCCON2 ADC Channel Select Register
SFR Address
Power-On Default Value 00H
Bit Addressable
Table XI. ADCCON2 SFR Bit Designations
Bit
7
6
5
4
3
2
1
0
REV. PrA 05/03
Name
XREF1
XREF0
–––
–––
CH3
CH2
CH1
CH0
Description
ADC External Reference Select Bit.
Set by user to enable the ADC use the external reference via REFIN+/- or REFIN2+/-.
Cleared by user to enable the ADC to use the internal bandgap reference (VREF = 1.25 V).
XREF1
Reserved for Future Use
Reserved for Future Use
ADC Channel Select Bits. Written by the user to select the ADC Channel as follows
CH3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
1
1
E6H
No
CH2
XREF0
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
1
0
1
CH1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
Internal 1.25v Vref
Refin+/-
Refin2+/- (Ain2 / Ain3)
Reserved for Future Use
CH0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
AIN0
AIN1
AIN2
AIN3
AIN4
AIN5
AIN6
AIN7
AIN8
AIN9
AIN0
AIN2
AIN4
AIN6
AIN8
AINCOM
Selected ADC Input Channel.
AINCOM
AINCOM
AINCOM
AINCOM
AINCOM
AINCOM
AINCOM
AINCOM
AINCOM (CSP package only). Not a valid selection on MQFP package.
AINCOM (CSP package only). Not a valid selection on MQFP package.
AIN1
AIN3
AIN5
AIN7
AIN9 (CSP package only). Mot a valid selection on MQFP package.
26
AINCOM
ADuC847