Help with determining the clock speed/instruction cycle time of a PIC16F684

Hi All; I am a little confused with how to interpret the true time one instruction cycle takes with using a 32kHz internal oscilliator in a PIC16F684.

From what I understand, if I use the 32kHz clock, then each instruction cycle will take 1/32kHz = 32us per instruction cycle. Is this correct? Or is the internal clock divided by 4 which would yield an 8us insruction cycle?

I am trying to figure this out so I can accurately produce various digital output frequencies.

Any help would be appreciated!

Thanks All!
Steve

The instruction clock is 1/4 the the oscillator speed .

Steve311 said:

I am trying to figure this out so I can accurately produce various digital output frequencies.

Any help would be appreciated!

Thanks All!
Steve

Click to expand...

There won't be anything accurate at all with the LFINTOSC, check table 15-2 of the data sheet for what I mean. A better chance would be with the HFINTOSC, if operated under optimal conditions.

An instruction will take approximately 4X32us = 128us, or 1e6/128 = 7812 instructions/sec