Hello RTers


A couple basic questions for yall,

I have a PII machine. When I look in /proc/ioports I see "timer" listed once 
with associated port addresses 40h-5fh.

Q: Is all this address space for one PIT only?

Q: Which counter (and PIT if more than one is available) is being
   used for RTLinux (or RTAI)?

Q: By "time-stamp clock" does one mean system clock?

Q: How does any of the above differ for the 486?

Sorry, I have missed some of the basics in my self taught programmimg
education.

Thanks once again,
Daniel S.
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