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Homemade German Interface, for what?
Posted: Sun Jan 12, 2020 2:48 pm
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
Re: Homemade German Interface, for what?
Posted: Sun Jan 12, 2020 5:22 pm
by rune
The description has Z80PIOB1 so I'd say its an I/O interface.
Z80 PIO and CPU are the same size.
Re: Homemade German Interface, for what?
Posted: Sun Jan 12, 2020 6:43 pm
by Erm
I see. Didn't realise it wasn't a normal Z80.
Re: Homemade German Interface, for what?
Posted: Mon Jan 13, 2020 1:11 am
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