18 Oct
2006
18 Oct
'06
2:06 p.m.
Ethan Dicks wrote:
I have this board here, marked "Reveal / Part No.
14-004-008" with an
FCC ID if BEJGCD-R420B. It is an 8-bit ISA card with a few jumpers
(1-4 and 1-9) and a single 40-pin IDC connector.
Probably some sort of Mitsumi interface. I expect it would be useful as
a fast-ish 8-bit parallel port...
Gordon.
From a bit of googling, it seems to be an ancient
CD-ROM interface.
That would be interesting as it's 8-bit and AFAIK, ATAPI
devices are
16-bit only. There's not much on the card - a couple of buffers ('244,
'245), an address comparator ('688), and a wee bit of logic ('32 x 2,
'08, '00)... nothing to, say, latch two 8-bit writes into a 16-bit
register.
Anyone recognize this beast? Is it useful in anything besides a
DOS/Win3.1 box?