7201 (was Re: Z8530 (was Re: Navtel 9460 Protocol Analyzer info?))

[Ethan Dicks]

On 4/15/05, Allison <ajp166 at bellatlantic.net> wrote:
> The only thing worse to design with and use was the COM2501, dumb
> as a stump.

Heh... we used the COM5025 for our Unibus COMBOARDs (before we
switched to the Z8530).  _The_ reason was that it was the sync serial
chip on the Qbus board (DPV11?) for our earlier protocol box that was,
in effect, an entire PDP-11 that hung off of a larger host -11 and did
HASP and 3780 front-end work.  They went with the same serial chip to
simplify the porting effort (the first cut of the code was converted
from MACRO-11 to 68K assembly by a TECO macro).

I have *hundreds* of COM5025 chips on the shelf here.  Never found a
use for them.

-ethan