PIC16F877A Serial Communication Interrupt

Hello,
I'm using a PIC16F877A to communicate with a host computer through Serial Communcation. The problem is, The computer doesn't send data to the MCU all the time. But when data is sent, the MCU should detect that and goto the relavent program. Is there a way to detect incoming data from the pc to the MCU without checking all the time using a endless while loop? A specific interrupt perhaps?

thanks

Yes, there is a serial interrupt. Check the data sheet.

Mike.