21 Sep
2012
21 Sep
'12
3:22 p.m.
On 21 Sep 2012 at 21:25, Tony Duell 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
:-)).
I don't know, Tony. I've got a couple of QIC36 boards; two are
Wangtek QIC36-to-ISA, the other is a Wangtek QIC36-to-QIC02
converter. Both have a substantial number of chips, including an MPU
(8085 in all cases) as well as some analog circuitry for what I
suspect is a data separator, SRAM and ROM. That seems to me to be a
bit beyond the capabilities of an 8035 MCU.
So, let''s see what the World-Wide-Intertube says. The only relevant
mention I can find of the Sysgen 4540 is in connection with a Wangtek
5096E drive. The 5096E (-ES for SCSI versions) is definitely a
QIC-02 interface drive.
So there you go...
--Chuck
.