RE: [CAD_CAM_EDM_DRO] How many LPT ports from a PCI slot?

Carlos:

I'd expect that you could address as many ports on a board as you could
physically fit. I/O addressing has to do with the number of address lines
that are available. I would expect that the PCI buss would have all of the
address lines at each connector. I know this is the case with the ISA
(except that some of the early ISA boards only decoded eight address lines,
which limited the amount of I/O that a machine could have) and have no
indication that PCI would be any different.

Now, understand that most people use the term "parallel port" to really mean
a printer port (Technically, a printer port is a couple of parallel ports).
The boards that you normally see make the assumption that you've already got
one printer port on your computer (address = $378 or 0x378 or 888) and want
the ports for the other two printers that the DOS OS will support.

-- Jerry

|-----Original Message-----
|From: Carlos Guillermo [mailto:carlos@...]
|Sent: Wednesday, February 13, 2002 8:04 AM
|To: CAD_CAM_EDM_DRO@egroups. Com
|Subject: [CAD_CAM_EDM_DRO] How many LPT ports from a PCI slot?
|
|
|Hi All -
|
|I think I asked this before (buried in another topic), but didn't
|get any answers, so here it is again:
|
|How many parallel ports can be accessed from one PCI slot? I have
|seen 2 parallel ports on one card, but can you get 3?