Datasheet

PIC16F610/616/16HV610/616
DS41288F-page 78 © 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
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
ADFM VCFG 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 ADFM: A/D Conversion Result Format Select bit
1 = Right justified
0 = Left justified
bit 6 VCFG: Voltage Reference bit
1 = V
REF pin
0 = V
DD
bit 5-2 CHS<3:0>: Analog Channel Select bits
0000 = Channel 00 (AN0)
0001 = Channel 01 (AN1)
0010 = Channel 02 (AN2)
0011 = Channel 03 (AN3)
0100 = Channel 04 (AN4)
0101 = Channel 05 (AN5)
0110 = Channel 06 (AN6)
0111 = Channel 07 (AN7)
1000 = Reserved – do not use
1001 = Reserved – do not use
1010 = Reserved – do not use
1011 = Reserved – do not use
1100 =CV
REF
1101 = 0.6V Fixed Voltage Reference
(1)
1110 = 1.2V Fixed Voltage Reference
(1)
1111 = Reserved – do not use
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
Note 1: When the CHS<3:0> bits change to select the 1.2V or 0.6V Fixed Voltage Reference, the reference output voltage will
have a transient. If the Comparator module uses this VP6 reference voltage, the comparator output may momentarily
change state due to the transient.