Datasheet

PIC18F2220/2320/4220/4320

TABLE 10-5: PORTC FUNCTIONS

TABLE 10-6: SUMMARY OF REGISTERS ASSOCIATED WITH PORTC

Name Bit# Buffer Type Function

RC0/T1OSO/T1CKI bit 0 ST Input/output port pin or Timer1 oscillator output/Timer1 clock input.

RC1/T1OSI/CCP2 bit 1 ST Input/output port pin, Timer1 oscillator input or Capture 2 input/

Compare 2 output/PWM output when CCP2MX Configuration bit is

disabled.

RC2/CCP1/P1A

(1)

bit 2 ST Input/output port pin, Capture 1 input/Compare 1 output/PWM1 output

or Enhanced PWM output A

(1)

RC3/SCK/SCL bit 3 ST RC3 can also be the synchronous serial clock for both SPI and I

C™

modes.

RC4/SDI/SDA bit 4 ST RC4 can also be the SPI data in (SPI mode) or data I/O (I

C mode).

RC5/SDO bit 5 ST Input/output port pin or Master Synchronous Serial Port data output.

RC6/TX/CK bit 6 ST Input/output port pin, addressable USART asynchronous transmit or

addressable USART synchronous clock.

RC7/RX/DT bit 7 ST Input/output port pin, addressable USART asynchronous receive or

addressable USART synchronous data.

Legend: ST = Schmitt Trigger input

Note 1: Enhanced PWM output is available only on PIC18F4X20 devices.

Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0

Value on

POR, BOR

Value on

all other

Resets

PORTC RC7 RC6 RC5 RC4 RC3 RC2 RC1 RC0 xxxx xxxx uuuu uuuu

LATC LATC Data Latch Register xxxx xxxx uuuu uuuu

TRISC PORTC Data Direction Register 1111 1111 1111 1111

Legend: x = unknown, u = unchanged