Datasheet

 2009-2011 Microchip Technology Inc. DS39960D-page 169
PIC18F87K22 FAMILY
12.1.4 ANALOG AND DIGITAL PORTS
Many of the ports multiplex analog and digital function-
ality, providing a lot of flexibility for hardware designers.
PIC18F87K22 family devices can make any analog pin
analog or digital, depending on an application’s needs.
The ports’ analog/digital functionality is controlled by
registers: ANCON0, ANCON1 and ANCON2.
Setting these registers makes the corresponding pins
analog and clearing the registers makes the ports digi-
tal. For details on these registers, see Section 23.0
“12-Bit Analog-to-Digital Converter (A/D) Module”.
REGISTER 12-4: ODCON3: PERIPHERAL OPEN-DRAIN CONTROL REGISTER 3
R/W-0 R/W-0 U-0 U-0 U-0 U-0 U-0 R/W-0
U2OD U1OD
— — — — — CTMUDS
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 U2OD: EUSART2 Open-Drain Output Enable bit
1 = Open-drain capability is enabled
0 = Open-drain capability is disabled
bit 6 U1OD: EUSART1 Open-Drain Output Enable bit
1 = Open-drain capability is enabled
0 = Open-drain capability is disabled
bit 5-1 Unimplemented: Read as ‘0’
bit 0 CTMUDS: CTMU Pulse Delay Enable bit
1 = Pulse delay input for CTMU is enabled on pin, RF1
0 = Pulse delay input for CTMU is disabled on pin, RF1