🚀 go-pugleaf

In article <9312181534.AA28356@gkcl.ists.ca> Paul Good <os9paul@GKCL.ISTS.CA> writes:
>Benoit Archambault writes:
>>         Actually the MC6844 is not vaporware. I saw it last week
>>         at ACTIVE here in Montreal. Rated at 9.95$ (CAN).
>
>I just checked my Active catalogue (vol. 914) and it lists the MC68B44P at
>$16.20 (CAN).  It also lists the speed as N/A, however, Motorola uses the
>B on most/all of its 68xx series chips.  Also, the last time I bought chips
>at Active (a couple of months ago), the prices ranged from about 1/2 to 2
>times the catalogue price.
>
>The Motorola Semiconductor Master Selection Guide lists the MC6844 as an
>NMOS chip that
>
>     Performs the function of transferring data directly between memory
>     and peripheral interface controllers, thus bypassing the MPU and its
>     associated time delay.  Transfers data at up to 2 Mbytes per second
>     rate.
>
>--
>Paul Good    os9paul@gkcl.ists.ca


So this chip does exist. It sounds like it would be as close to ideal as
one could get on the coco for interfaceing a video card. So the question
now is has anyone tried this yet or thought about doing it? I will find
the data books again and see if this may be possible.

Brian
rph91570zach.fit.edu