Re: Arcade board

["Bill Garber" <willy46pa@comcast DOT net>]

"Michael J. Mahon" <mjmahon@aol.com> wrote in message
20040814033629.04913.00001694@mb-m05.aol.com">news:20040814033629.04913.00001694@mb-m05.aol.com...
: Steven N. Hirsch wrote:
:
: >Michael J. Mahon wrote:
: >
: >> I had my eye on it for almost a week.  An interesting combo
: >> of 9918 sprite card and AY-3-8910 sound chip.
: >>
: >> Also interesting that they didn't find a way to route the
video
: >> output on the PC board.  ;-)
: >
: >I missed the run-up to this.  A friend of mine who I have not
seen in
: >years designed a board called the "Sprite-n-Stereo" card. Is
that what
: >you have?  If so, quite a rarity.
:
: It's pretty close!  There is one AY-3-8910, so it's a
"Sprite-n-Mono"
: card.  ;-)  I note from the picture, though, that there's some
2-channel
: funny business at the audio end, so maybe it _is_ stereo...that
would
: mean that the video is available only at the RF modulator
connector.
:
: I've never seen this combo before, and am looking forward to
seeing
: how the 9918A and the '8910 are interfaced, since there's
nothing
: but "glue" logic on the card.

This last phrase is Bogus. It's best known as GLU or General
Logic Unit.
The TTL chips on the card are the Logic. The CFFA has GLU in the
form of
a CPLD. Most earlier Apple IF cards have individual gates making
up their
Logic so they don't have GLU.

Thank you. We now return you to your previously scheduled topic.
:o)

Bill @ GarberStreet Enterprizez };-)
Web Site - http://garberstreet.netfirms.com
Email - willy46pa @ comcast DOT net
Change DOT to a dot to contact me



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