Re: Question about parallel card.

[david@uow.edu.au (David Wilson)]

Rubywand <rubywand@swbell.net> writes:
>     One way to tell whether a printer or other parallel interface card
>can be set up to receive 8-bit data is to check the IC's on the card. If
>it has one of the standard 40-pin multi-port I/O chips (like a 6520,
>6521, 6522, 6530, 8255, ...) there is a good chance that the board can
>be set up to do 8-bit input and output.

Don't forget the 6821. This is used on the Automatic ICE printer card.
A very simple card - two chips: 6821 PIA and 27xx EPROM. The EPROM is bank
selected using some spare outputs from the PIA.
--
David Wilson  School of IT & CS, Uni of Wollongong, Australia  david@uow.edu.au