
2001 Microchip Technology Inc.
Advance Information
DS39541A-page 109
PIC18C601/801
TABLE 9-5:
PORTC FUNCTIONS
TABLE 9-6:
SUMMARY OF REGISTERS ASSOCIATED WITH PORTC
Name
Bit#
Buffer Type
Function
RC0/T1OSO/T13CKI
bit0
ST
Input/output port pin or Timer1 oscillator output or Timer1/Timer3
clock input.
RC1/T1OSI
bit1
ST
Input/output port pin, Timer1 oscillator input.
RC2/CCP1
bit2
ST
Input/output port pin or Capture1 input/Compare1 output/
PWM1 output.
RC3/SCK/SCL
bit3
ST
Input/output port pin or synchronous serial clock for SPI/I2C.
RC4/SDI/SDA
bit4
ST
Input/output port pin or SPI Data in (SPI mode) or Data I/O
(I2C mode).
RC5/SDO
bit5
ST
Input/output port pin or Synchronous Serial Port Data output.
RC6/TX/CK
bit6
ST
Input/output port pin, Addressable USART Asynchronous Transmit, or
Addressable USART Synchronous Clock.
RC7/RX/DT
bit7
ST
Input/output port pin, Addressable USART Asynchronous Receive, or
Addressable USART Synchronous Data.
Legend: ST = Schmitt Trigger input
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 Output Register
xxxx xxxx
uuuu uuuu
TRISC
PORTC Data Direction Register
1111 1111
Legend: x = unknown, u = unchanged