Datasheet

MCP2502X/5X
DS21664D-page 44 © 2007 Microchip Technology Inc.
REGISTER 7-6: ADCON1 REGISTER
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
ADCS1 ADCS0 VCFG1 VCFG0 PCFG3 PCFG2 PCFG1 PCFG0
bit 7 bit 0
bit 7-6 ADCS1:ADCS0: A/D Conversion Select bits
00 = F
OSC/2
01 = F
OSC/8
10 = F
OSC/32
11 = Reserved
bit 5-4 VCFG1:VCFG0: Voltage Reference Configuration bits
bit 3-0 PCFG3:PCFG0: A/D Port Configuration Control bits*
1 = Corresponding GPIO pin configured as Digital I/O
0 = Corresponding GPIO pin configured as A/D Input
* corresponding data direction bit (GPDDR register) must be set for each enabled analog
channel.
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
VCFG1:VCFG0 A/D VREF+ A/D VREF-
00
VDD VSS
01
External VREF+VSS
10
VDD External VREF-
11
External VREF+ External VREF-