[PIC] Use of SPI and I2C interfaces

[adeel.sid]

On PIC16f877A, there is common pin for clock (pin 18), I wonder if I could use the same pin for data input to PIC via I2C and data output via SPI?
is there any effect on pin out?

 

[FvM]

The dedicated pin functions or overriding GPIO function when the respective communication function is enabled in special function register. Review the RC4 description in data sheet chapter I/O-Ports.

 

[embpic]

yes u can use both function on same pin but one after another and should enable and disable and vice versa.
care should be taken than no both interface enable.