Datasheet

PIC16(L)F1512/3
DS41624B-page 136 Preliminary  2012 Microchip Technology Inc.
16.3 ADC Register Definitions
The following registers are used to control the
operation of the ADC.
REGISTER 16-1: ADCON0: A/D CONTROL REGISTER 0
U-0 R/W-0/0 R/W-0/0 R/W-0/0 R/W-0/0 R/W-0/0 R/W-0/0 R/W-0/0
— CHS<4:0> GO/DONE ADON
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
u = Bit is unchanged x = Bit is unknown -n/n = Value at POR and BOR/Value at all other Resets
‘1’ = Bit is set ‘0’ = Bit is cleared
bit 7
Unimplemented: Read as ‘0’
bit 6-2
CHS<4:0>: Analog Channel Select bits
11111 = FVR (Fixed Voltage Reference) Buffer 1 Output
(1)
11110 = Reserved. No channel connected.
11101 = Temperature Indicator
(2)
.
11100 = Reserved. No channel connected.
11011 =VREFL (ADC Negative Reference)
11010 =VREFH (ADC Positive Reference)
(3)
11001 = Reserved. No channel connected.
•
•
•
10100 = Reserved. No channel connected.
10011 =AN19
10010 =AN18
10001 =AN17
10000 =AN16
01111 =AN15
01110 =AN14
01101 =AN13
01100 =AN12
01011 =AN11
01010 =AN10
01001 =AN9
01000 =AN8
00111 = Reserved. No channel connected.
00110 = Reserved. No channel connected.
00101 = Reserved. No channel connected.
00100 =AN4
00011 =AN3
00010 =AN2
00001 =AN1
00000 =AN0
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: See Section 14.0 “Fixed Voltage Reference (FVR)” for more information.
2: See Section 15.0 “Temperature Indicator Module” for more information.
3: Conversion results for the VREFH selection may contain errors due to noise.