Date: Fri, 9 Apr 2004 11:12:26 -0700 Subject: DayStar accelerator in an SE/30 From: John Niven <[EMAIL PROTECTED]>
Am I right in assuming that the ONLY thing the required DayStar SE/30 Adapter did was provide a straight through connection, to get over the physical constraints? Or was there "active" devices on the adapter?
I've never seen one. Anybody got a picture on the web?
There is an active device (or two) on the adapter. It is a PAL or PLD or some variety of programmable logic device. I have the adapter for the IIsi but I discussed this in email with Gamba before he disappeared and the SE/30 adapter also has one or two.
The IIci and SE/30 PDS slots are wired a little differently. Hence the adapter is a necessity. "Designing Cards and Drivers for the Macintosh" has the respective pinouts listed in it.
Some day I would like to take a 5V source, some switches and some LEDs to that PAL and see if I can determine its logical content. But I'm back in school for a semester and taking four labs, so that day won't be this semester.
Jeff Walther
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