PIC12F1822 MICROCHIP [Microchip Technology], PIC12F1822 Datasheet - Page 139

• Manufacturer Part Number: PIC12F1822
• Description: 8/14-Pin Flash Microcontrollers with nanoWatt XLP Technology
• Manufacturer: MICROCHIP [Microchip Technology]

15.2.7
The following registers are used to control the
operation of the ADC.
REGISTER 15-1:
 2010 Microchip Technology Inc.
bit 7
Legend:
R = Readable bit
u = Bit is unchanged
‘1’ = Bit is set
bit 7
bit 6-2
bit 1
bit 0
Note 1:
U-0
—
2:
3:
PIC16F/LF1823 only. For PIC12F/LF1822 it is “Reserved. No channel connected”.
See Section 16.0 “Digital-to-Analog Converter (DAC) Module” for more information.
See Section 14.0 “Fixed Voltage Reference (FVR)” for more information.
ADC REGISTER DEFINITIONS
Unimplemented: Read as ‘0’
CHS<4:0>: Analog Channel Select bits
00000 = AN0
00001 = AN1
00010 = AN2
00011 = AN3
00100 = AN4
00101 = AN5
00110 = AN6
00111 = AN7
01001 = Reserved. No channel connected.
11101 = Reserved. No channel connected.
11110 = DAC output
11111 = FVR (Fixed Voltage Reference) Buffer 1 Output
GO/DONE: A/D Conversion Status bit
1 = A/D conversion cycle in progress. Setting this bit starts an A/D conversion cycle.
0 = A/D conversion completed/not in progress
ADON: ADC Enable bit
1 = ADC is enabled
0 = ADC is disabled and consumes no operating current
R/W-0/0
CHS4
This bit is automatically cleared by hardware when the A/D conversion has completed.
•
•
•
ADCON0: A/D CONTROL REGISTER 0
(1)
(1)
(1)
(1)
W = Writable bit
x = Bit is unknown
‘0’ = Bit is cleared
R/W-0/0
CHS3
(2)
PIC12F/LF1822/16F/LF1823
R/W-0/0
CHS2
Preliminary
U = Unimplemented bit, read as ‘0’
-n/n = Value at POR and BOR/Value at all other Resets
R/W-0/0
CHS1
(3)
R/W-0/0
CHS0
GO/DONE
R/W-0/0
DS41413A-page 139
R/W-0/0
ADON
bit 0