PIC16F1938 Datasheet, PDF (159/452 Pages) Microchip Technology – 28/40/44-Pin Flash-Based, 8-Bit CMOS Microcontrollers

PIC16(L)F1938/9
15.2.7 ADC REGISTER DEFINITIONS
The following registers are used to control the
operation of the ADC.
REGISTER 15-1: ADCON0: A/D CONTROL REGISTER 0
U-0
—
bit 7
R/W-0/0
R/W-0/0
R/W-0/0
CHS<4:0>
R/W-0/0
R/W-0/0
R/W-0/0
GO/DONE
R/W-0/0
ADON
bit 0
Legend:
R = Readable bit
u = Bit is unchanged
‘1’ = Bit is set
W = Writable bit
x = Bit is unknown
‘0’ = Bit is cleared
U = Unimplemented bit, read as ‘0’
-n/n = Value at POR and BOR/Value at all other Resets
bit 7
bit 6-2
bit 1
bit 0
Unimplemented: Read as ‘0’
CHS<4:0>: Analog Channel Select bits
00000 = AN0
00001 = AN1
00010 = AN2
00011 = AN3
00100 = AN4
00101 = AN5⁽⁴⁾
00110 = AN6⁽⁴⁾
00111 = AN7⁽⁴⁾
01000 = AN8
01001 = AN9
01010 = AN10
01011 = AN11
01100 = AN12
01101 = AN13
01110 = Reserved. No channel connected.
•
•
•
11100 = Reserved. No channel connected.
11101 = Temperature Indicator⁽³⁾
11110 = DAC output⁽¹⁾
11111 = FVR (Fixed Voltage Reference) Buffer 1 Output⁽²⁾
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
ADON: ADC Enable bit
1 = ADC is enabled
0 = ADC is disabled and consumes no operating current
Note 1:
2:
3:
4:
See Section 17.0 “Digital-to-Analog Converter (DAC) Module” for more information.
See Section 14.0 “Fixed Voltage Reference (FVR)” for more information.
See Section 16.0 “Temperature Indicator Module” for more information.
Not available on the PIC16(L)F1938.
 2011 Microchip Technology Inc.
Preliminary
DS41574A-page 159