18 Dec
2001
18 Dec
'01
12:33 a.m.
setup and hold time issues,
Wrong! Easily met with 4.77 or 8 Mhz bus speed
which the bus doesn't.
... pretty much the same as
any other device costing a third as much. Of course
it depends on whether
you're satisfied with "getting by" or would prefer to meet the spec's.
8250 meets the bus specs no problem...
Just because YOU don't like
<snip>
> I had to buy 8250's to populate
multi-port serial boards for various S-100
> systems back then and was acutely aware of the cost of an 8250 as opposed to
a
less
generously provisioned device. It had lots of parallel bits, that some
folks used, but I never needed them.
I pressume thats why IBM chose it since it supported a full set of Modem
control lines...