Microchip Technology DM163025-1 Data Sheet

Page of 536
 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
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