Microchip Technology DM163025-1 データシート
2012 Microchip Technology Inc.
DS30684A-page 307
PIC18(L)F2X/45K50
REGISTER 18-2:
ADCON1: A/D CONTROL REGISTER 1
R/W-0
U-0
U-0
U-0
R/W-0
R/W-0
R/W-0
R/W-0
TRIGSEL
—
—
—
PVCFG<1:0>
NVCFG<1:0>
bit 7
bit 0
Legend:
R = Readable bit
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
TRIGSEL
: Special Trigger Select bit
1
= Selects the special trigger from CTMU
0
= Selects the special trigger from CCP2
bit 6-4
Unimplemented:
Read as ‘0’
bit 3-2
PVCFG<1:0>:
Positive Voltage Reference Configuration bits
00
= A/D V
REF
+ connected to internal signal, AV
DD
01
= A/D V
REF
+ connected to external pin, V
REF
+
10
= A/D V
REF
+ connected to internal signal, FVR BUF2
11
= Reserved
bit 1-0
NVCFG<1:0>:
Negative Voltage Reference Configuration bits
00
= A/D V
REF
- connected to internal signal, AV
SS
01
= A/D V
REF
- connected to external pin, V
REF
-
10
= Reserved
11
= Reserved