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Posted: **Sun Jan 20, 2019 1:18 pm**

Is the interrupt enabled only on Bits 4-7 of PortB of a PIC16F877A chip? Or is it just a problem with the simulator and it should work fine when I download the program on to the chip? Thanks!

Posted: **Sun Jan 20, 2019 1:46 pm**

Hi.

Vazh93 wrote:Is the interrupt enabled only on Bits 4-7 of PortB of a PIC16F877A chip?

That is correct.
On 16F877A, Only Pins B4 to B7 have port B interrupt on change.

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