What 'exactly' does the does the PEIE bit enable ? and like wise the GIE bit ? I have implemented the GIE and PEIE in all cases using TMR2, RBINT, RB<4:7>. Recently I have just tried the same prog without the PEIE bit enabled with the same results, I thought it would enable interrupts peripherals such as INT, A/D etc Which interrupts are enabled by which Bit ?????????? I thought I had it sussed!!!! The databooks are not very clear. from confused Ash