21 Sep
2012
21 Sep
'12
1:25 p.m.
On 20 Sep 2012 at 16:29, Chris Tofu wrote:
I doubt it. It is probably a tape controller, but QIC02 is a 'formatteed'
interface, and ineerfacign that to the ISA bus is trival -- a dozen TTL
chips/
I would guess it's QIC36, which is a low-level 'unformatted' interface. I
have seen simialr QIC 36 boards for the ISA bus, A micorprocessor or
microcotnroller , EPROM, 2K or 8K of SRAM, a custom 40 pin tape data
control IC and glue logic. Often internally they are built as
ISA-QIC02 and QIC02-QIC36 interfaces on the same board. In fact I ahve a
QIC02 to QIC36 interfce here that usese the same custom IC as a common
ISA QIC36 controller (guess where I get spares from :-)).
-tony
one 40 pin chip's id is obliterated, the
other is an SCN8035A (a uP).
Toshiba TMM2016-AP10, 2 roms. Lots of glue. 18.0000 mhz? crystal. A
weird squarish gray connector on the bracket. 8 bit ISA.
Connector is 50 pin? It's a tape controller, probably QIC02. Don't
know anything else about it.