Техническая Спецификация для Microchip Technology DM163025-1
PIC18(L)F2X/45K50
DS30684A-page 306
2012 Microchip Technology Inc.
18.3
Register Definitions: ADC Control
Note:
Analog pin control is determined by the
ANSELx registers (see
ANSELx registers (see
)
REGISTER 18-1:
ADCON0: A/D CONTROL REGISTER 0
U-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
—
CHS<4:0>
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
Unimplemented:
Read as ‘0’
bit 6-2
CHS<4:0>: Analog Channel Select bits
00000
00000
= AN0
00001
= AN1
00010
= AN2
00011
= AN3
00100
= AN4
00101
= AN5
(1)
00110
= AN6
(1)
00111
= AN7
(1)
01000
= AN8
01001
= AN9
01010
= AN10
01011
= AN11
01100
= AN12
01101
= AN13
01110
= AN14
01111
= AN15
10000
= AN16
10001
= AN17
10010
= AN18
10011
= AN19
10100
= AN20
(1)
10101
= AN21
(1)
10110
= AN22
(1)
10111
= AN23
(1)
11000
= AN24
(1)
11001
= AN25
(1)
11010
= AN26
(1)
11011
= AN27
(1)
11100
= Temperature Diode
11101
= CTMU
11110
= DAC
11111
= FVR BUF2 (1.024V/2.048V/4.096V Fixed Voltage Reference)
(2)
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
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:
Available on PIC18(L)F45K50 devices only.
2:
Allow greater than 15
s acquisition time when measuring the Fixed Voltage Reference.