Internal Pullup only on RB5 - PIC16F677

[davefromnj]

Hello All,

The target IC is a PIC 16F677:

I need to use only one Port B pin with an internal pullup. According to the datasheet this is possible by setting up RABPU[bar] and setting the proper bits in the WPUB register.

The other Port B pins are as follows:

Portb.4 = I2C Data
Portb.5 = I need this one to have its internal pull up enabled.
Portb.6 = I2C Clock
Portb.7 = Digital Output


I didn't see a specific function or command in the CCS libraries to modify the WPUB register and set or clear the RABPU[bar] register.

Can someone point out how to do this?


Thank you all!

[necati]

port_b_pullups (0b00100000);