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

[Steve Rieck]

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?

 

[Kai Robinson]

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?

Well the SE/30 has a few options for programmable ROM SIMMs - the EPROM on the board is the video ROM.

 

[Steve Rieck]

Well the SE/30 has a few options for programmable ROM SIMMs - the EPROM on the board is the video ROM.

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]

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.

 

[Kai Robinson]

Just as a curio: https://siliconpr0n.org/archive/doku.php?id=bercovici:apple:344s0602-a

Thats the die image of the VTi (VLSI) Gate Array (it's a VGC1900 series part), only 858MB!