bbraun gave me the link to the .jp TwinSpark adapter docs . . .
http://www.artmix.com/pdffiles/ST_TS_adapt_E.pdf
. . . so it's certain that the PAL on the board converts the basic 68030 PDS to a IIci Cache Slot.
I've spent the years since Shreve Systems clearance put a Daystar PowerCache IIcx Adapter (MIA, the box is empty :-/ ) and several LCIII adapters into my grubby little paws collecting every 68030 PDS and Bridge Chip Adapter ASIC available for this NuBus conversion project. This is an outgrowth of the NuBusMiniDock™ project for the DuoBoomBoxDock™ hack, intended to win the Doctor Webster Prize (a free Mac of some sort) over on 'fritter back in the day.
I don't remember if there was a PAL on the IIx adapter, there likely was, but there is not a single IC on the LCIII Adapter, just some digital glue! The layout of this adapter coupled witht the Pinout/Signal Assignments of the LCIII ought to get one of our Schematically Literate techs a leg up on modeling the characteristics of the SE/30/IIsi PDS <-> IIci Cache Slot for clean room cloning of the PALs on the Daystar and TwinSpark PowerCache Adapters.
techknight, wanna have an LCIII adapter sent your way? [
] ]'>
Any volunteers? :?:
http://www.artmix.com/pdffiles/ST_TS_adapt_E.pdf
. . . so it's certain that the PAL on the board converts the basic 68030 PDS to a IIci Cache Slot.
I've spent the years since Shreve Systems clearance put a Daystar PowerCache IIcx Adapter (MIA, the box is empty :-/ ) and several LCIII adapters into my grubby little paws collecting every 68030 PDS and Bridge Chip Adapter ASIC available for this NuBus conversion project. This is an outgrowth of the NuBusMiniDock™ project for the DuoBoomBoxDock™ hack, intended to win the Doctor Webster Prize (a free Mac of some sort) over on 'fritter back in the day.
I don't remember if there was a PAL on the IIx adapter, there likely was, but there is not a single IC on the LCIII Adapter, just some digital glue! The layout of this adapter coupled witht the Pinout/Signal Assignments of the LCIII ought to get one of our Schematically Literate techs a leg up on modeling the characteristics of the SE/30/IIsi PDS <-> IIci Cache Slot for clean room cloning of the PALs on the Daystar and TwinSpark PowerCache Adapters.
techknight, wanna have an LCIII adapter sent your way? [
] ]'>Any volunteers? :?: