[comp.sys.ibm.pc] Printer port specifics

schriste@uceng.UC.EDU (Steven V. Christensen) (01/22/90)

I understand it is possible to access the specific input and output
ports of the IBM PC parallel port, to have access to some TTL-level
signals. I want to do some digital programming, and want to do
some low-level access to the port.

Can someone enlighten me as to the specifics of accessing the port
bits? I understand there are 12 output and 5 input bytes.  

You can send mail, or post the results. Anyone who wants a summary
can send me mail and I will send the results.

Thanks,
		Steven

-- 
Steven V. Christensen
U.C. College of Eng.
schriste@uceng.uc.edu