The component module & the infamous Alpha coprocessor board

 

Very little facts are known of this board which never passed the prototype stages due to its fragility. It was supposed to attach to a header in the DraCo Motion/Vlab Motion and provide component output.
I have never seen a picture of this device, but it is absolutely not a rumour and it is based around the Philips SAA 7165 chip.


Speaking of rumors, many times during the life of the DraCo, Macrosystem advertised about a DraCo Direct card for rendering video effects in realtime. It was supposely a kind of coprocessor card based around a DEC Alpha processor at 233 Mhz (this was in a time where the Alpha processor was the king of the hill). The truth is, that this card never even reached the prototype stage.

DraCo memory map

DraCo has no memory at all at zero address, unless the AmigaOS MMU setup is still active,
and then it's only virtual.

DraCo memory starts at 0x4000 0000, 0x4200 0000, 0x4400 0000, 0x4600 0000,
with at least 4 MB in the first slot, and not more than 32 MB in each slot.

The AmigaOS MMU table is somewhere in the first 2 MB.

A full 128 MB DraCo looks like this with NetBSD:

memory segment 0 at 40000000 size 00200000
memory segment 1 at 40200000 size 07e00000