Datasheet
2012 Microchip Technology Inc. DS30575A-page 443
PIC18F97J94 FAMILY
REGISTER 22-6: ADCON2H: A/D CONTROL REGISTER 2 HIGH
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 U-0 U-0
PVCFG1 PVCFG0 NVCFG0 OFFCAL BUFREGEN CSCNA — —
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 7-6 PVCFG<1:0>: Converter Positive Voltage Reference Configuration bits
1x = Unimplemented, do not use
01 =External V
REF+
00 =AV
DD
bit 5 NVCFG0: Converter Negative Voltage Reference Configuration bit
1 =External VREF-
0 =AV
SS
bit 4 OFFCAL: Offset Calibration Mode Select bit
1 = Inverting and non-inverting inputs of channel Sample-and-Hold are connected to AVSS
0 = Inverting and non-inverting inputs of channel Sample-and-Hold are connected to normal inputs
bit 3 BUFREGEN: A/D Buffer Register Enable bit
1 = Conversion result is loaded into the buffer location determined by the converted channel
0 = A/D result buffer is treated as a FIFO
bit 2 CSCNA: Scan Input Selections for CH0+ During Sample A bit
1 =Scans inputs
0 = Does not scan inputs
bit 1-0 Unimplemented: Read as ‘0’