Phase 5: Blizzard 1230 Mk-II
Connection: Trapdoor Slot (A1200)

Pictures shows the rear of the card
Pictures shows the rear of the card

Front
Front

b1232jp.gif

Back
Back

Hi Res Version, Front - 418K
Hi Res Version, Back - 364K

Processor:EC030@40Mhz or 030@50Mhz
FPU:Optional 68882 (PGA and PLCC)
MMU:None in EC030s, Internal in full 030s.
Max Ram:64MB
Ram Type:2 x 72pin SIMM slots.

An accelerator which plugs into the trapdoor slot of the A1200. An optional Fast SCSI-II controller is also available.

Jumpers

MapRom

If memory is installed on the Blizzard 1230-II you can load Kickstart into the faster RAM to speed up the execution of operating system functions. If the MAPROM jumper is removed, Kickstart will be automatically copied over to the RAM. If the jumper is installed Kickstart will be executed on the ROM.

FPU-Clock

In position 2-3 the co-processor is operated synchronously, with the central processor clock. If you want to use a co-processor with another clock rate this jumper must be set to position 1-2. For asynchronous operation a second oscillator must be installed.

RAM Configuration


Bank1Bank2Jumpertotal
leerleer0MB
1MBleer1MB
2MBleer2MB
4MBleer4MB
8MBleer8MB
16MBleer16MB
32MBleer32MB
1MB1MB2MB
2MB1MB3MB
4MB1MB5MB
8MB1MB9MB
16MB1MB17MB
32MB1MB33MB
2MB2MB4MB
4MB2MB6MB
8MB2MB10MB
16MB2MB18MB
32MB2MB34MB
4MB4MB8MB
8MB4MB12MB
16MB4MB20MB
32MB4MB36MB
8MB8MB16MB
16MB8MB24MB
32MB8MB40MB
16MB16MB32MB
32MB16MB48MB
32MB32MB64MB

Contributions to this page by:
Chain, Daniel O'Conner


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