
PIC16F72X/PIC16LF72X
DS41341E-page 104
2009 Microchip Technology Inc.
9.2.7
ADC REGISTER DEFINITIONS
The following registers are used to control the
operation of the ADC.
REGISTER 9-1:
ADCON0: A/D CONTROL REGISTER 0
U-0
R/W-0
—
CHS3
CHS2
CHS1
CHS0
GO/DONE
ADON
bit 7
bit 0
Legend:
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
-n = Value at POR
‘1’ = Bit is set
‘0’ = Bit is cleared
x = Bit is unknown
bit 7-6
Unimplemented: Read as ‘0’
bit 5-2
CHS<3:0>: Analog Channel Select bits
0000
=AN0
0001
=AN1
0010
=AN2
0011
=AN3
0100
=AN4
0101
=AN5
0110
=AN6
0111
=AN7
1000
=AN8
1001
=AN9
1010
=AN10
1011
=AN11
1100
=AN12
1101
=AN13
1110
=Reserved
1111
= Fixed Voltage Reference (FVREF)
bit 1
GO/DONE: A/D Conversion Status bit
1
= A/D conversion cycle in progress. Setting this bit starts an A/D conversion cycle.
This bit is automatically cleared by hardware when the A/D conversion has completed.
0
= A/D conversion completed/not in progress
bit 0
ADON: ADC Enable bit
1
= ADC is enabled
0
= ADC is disabled and consumes no operating current