Can new PLCC chips be programmed for the SE/30 ?

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Steve Rieck

New Tinkerer
Mar 24, 2023
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Apologies if this has been covered but I can't find the info. New to this one. Would be nice to have extras of course. Especially interested in the GLU and SWIM chips. I believe the other PLCC mounted chips can be replaced off the shelf or are otherwise available?
 
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Kai Robinson

Kai Robinson

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Steve Rieck said:
Apologies if this has been covered but I can't find the info. New to this one. Would be nice to have extras of course. Especially interested in the GLU and SWIM chips. I believe the other PLCC mounted chips can be replaced off the shelf or are otherwise available?
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Well the SE/30 has a few options for programmable ROM SIMMs - the EPROM on the board is the video ROM.
 
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S

Steve Rieck

New Tinkerer
Mar 24, 2023
11
5
3
Kai Robinson said:
Well the SE/30 has a few options for programmable ROM SIMMs - the EPROM on the board is the video ROM.
Click to expand...
oh I see. yes, I was using the wrong term. Are GLU and SWIM chips for the SE/30 only available from salvaged boards? I guess other SE/30s and Mac II ? No way to make modern equivalants?
 
Kai Robinson

Kai Robinson

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Correct - GLU is a custom ASIC (VTI Gate Array), SWIM is a custom ASIC, the ASC is a custom ASIC, the SND has been reverse engineered, the RTC too, the VIA chips are merely 65C22N's from WDC, the GAL's have been reverse engineered and made available and the rest is off the shelf.
 
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