SOLVED: Post #11 - IOC on negative edge sometimes triggers twice on single press

[tumbleweed]

- 16F1937 has TTL General Purpose pins.
- 16F18877 has TTL and ST General Purpose pins.

You should be able to set the pin type in the 16F18877 to either ST or TTL to match the 1937 type if that's what you're after.
I don't think your 'INLVLB = %00000100' statement changed anything for RB2... it's still the default setting.