PIC16F87XA
TABLE 4-5:
Name
PORTC FUNCTIONS
Bit# Buffer Type
Function
RC0/T1OSO/T1CKI
RC1/T1OSI/CCP2
bit0
bit1
ST
ST
Input/output port pin or Timer1 oscillator output/Timer1 clock input.
Input/output port pin or Timer1 oscillator input or Capture2 input/
Compare2 output/PWM2 output.
RC2/CCP1
bit2
bit3
ST
ST
Input/output port pin or Capture1 input/Compare1 output/
PWM1 output.
RC3/SCK/SCL
RC3 can also be the synchronous serial clock for both SPI
and I2C modes.
RC4/SDI/SDA
RC5/SDO
bit4
bit5
bit6
ST
ST
ST
RC4 can also be the SPI Data In (SPI mode) or Data I/O (I2C mode).
Input/output port pin or Synchronous Serial Port data output.
RC6/TX/CK
Input/output port pin or USART Asynchronous Transmit or
Synchronous Clock.
RC7/RX/DT
bit7
ST
Input/output port pin or USART Asynchronous Receive or
Synchronous Data.
Legend: ST = Schmitt Trigger input
TABLE 4-6:
SUMMARY OF REGISTERS ASSOCIATED WITH PORTC
Value on:
POR,
BOR
Value on
all other
RESETS
Address Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
xxxx xxxx
1111 1111
uuuu uuuu
1111 1111
07h
87h
PORTC RC7
RC6
RC5
RC4
RC3
RC2
RC1
RC0
TRISC PORTC Data Direction Register
Legend: x= unknown, u= unchanged
2001 Microchip Technology Inc.
Advance Information
DS39582A-page 45
MICROCHIP [ MICROCHIP ]
