I forgot to add that with a 12 Mhz crystal the processor can do approximately 1 million instructions per second; that is using the average of 2 clock cycles per second. The math of crystal speed in MHz / 12 = the approximate instructions per second that are executed.

You are running 11.0592 which is ~= .966 instructions per second.

So therefore you're highest clock output using a port bit would be in the kilohertz range. Figuring:

clockit:
cpl p1.0
sjmp clockit

~= 4 clock cycles per loop =
~= 483 kHz

Others: if this is wrong please correct.

Thanks and hope this helps,

John