Homemade German Interface, for what?

Discussions about Sinclair ZX80 and ZX81 Hardware
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Erm
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Homemade German Interface, for what?

Post by Erm »

Just spotted this (it's not mine). Some kind of homemade interface. Looks like a Z80 on it. From the short connector I'd assume it was for a ZX81.

But what does it do?

https://www.ebay.de/itm/I-O-Interface-m ... 3366882732
I'm Chris, a Brit in Germany (Chr$ on the QL forum).
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rune
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Re: Homemade German Interface, for what?

Post by rune »

The description has Z80PIOB1 so I'd say its an I/O interface.

Z80 PIO and CPU are the same size.
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Erm
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Re: Homemade German Interface, for what?

Post by Erm »

I see. Didn't realise it wasn't a normal Z80.
I'm Chris, a Brit in Germany (Chr$ on the QL forum).
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1024MAK
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Re: Homemade German Interface, for what?

Post by 1024MAK »

Yep, that chip is a member of the Z80 family, but it is not a microprocessor. It is a programmable input/output interface chip. If you want more information have a look at the various documents on this site, especially those about the Zilog PIO...

Mark
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