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A1200 Accelerators
Phase 5: Blizzard 1230 Mk-II
Connection: Trapdoor Slot (A1200) |
Pictures shows the rear of the card
Front
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
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Contributions to this page by:
Chain, Daniel O'Conner
Letzte Änderung des Artikels: 2009-01-25 09:20
Revision: 1.0
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