Information

PIC18F2XK20/4XK20
DS41303G-page 272  2010 Microchip Technology Inc.
REGISTER 19-2: ADCON1: A/D CONTROL REGISTER 1
U-0 U-0 R/W-0 R/W-0 U-0 U-0 U-0 U-0
— —VCFG1VCFG0— — — —
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 Unimplemented: Read as ‘0’
bit 5 VCFG1: Negative Voltage Reference select bit
1 = Negative voltage reference supplied externally through V
REF- pin.
0 = Negative voltage reference supplied internally by V
SS.
bit 4 VCFG0: Positive Voltage Reference select bit
1 = Positive voltage reference supplied externally through VREF+ pin.
0 = Positive voltage reference supplied internally by V
DD.
bit 3-0 Unimplemented: Read as ‘0’