What this could be?

[Deda]

Hi all I was ransacking some parts that were in the basement and found this.
It is something that goes in A500 side port and on the other side is 34-pin connector.
Any ideas ?

 

[Trapshot]

Floppy/IDE interface maybe?

 

[Deda]

To connect what?Floppy drive?
Why if there is port for it on back to A500 for that...

 

[Bryce]

Probably some sort of GPIO board. Can you tell us the part numbers of the two ICs? They are most likely a buffer and some sort of address decoding.

Bryce.

 

[Deda]

They are unreadable for some reason ... It seems that on one of them says "PAL1" and that's it ...

 

[SkyLarkEire]

I think I had seen something like that many years ago...

This seems to be only the first part of the interface.

The second part has 34pin connector, too - just to use standard 34-pin tape to connect them - and another edge connector for: 8bit ISA card MFM/ST506/ST412 harddrive controller.

99% sure

 

[Bryce]

They are unreadable for some reason ... It seems that on one of them says "PAL1" and that's it ...

Then I'd guess that it's a PAL connected to the address bus for decoding and the other IC is something like a 74LS244 or 74LS373 to buffer the data lines.

Bryce.

 

[Deda]

I really don't need this,if someone can find use of it just let me know.Just pay for postage.
It has some aluminium housing too.I'll post pictures if needed.