Re: iic boot from serial port?

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

CUTjefbla@bconnex.net (Jeff Blakeney) writes:
>On 14 Feb 2001 08:28:31 +0100, pausch@saaf.se (Paul Schlyter) wrote:

>>Why bother with the serial port?  Why not instead use the parallell
>>port also on the Apple II side?  By using the various printer status
>>lines as input, one can transfer a whole nibble at a time, and not
>>just one bit at a time as on the serial port.

>The problem here is that the only bi-directional parallel card for the
>Apple II that I'm aware of is the Profile controller card and it is
>pretty rare.

I have an Epson printer card which consists of nothing more than an EPROM
and a 6821 PIA chip. This would be easy to run bi-directionally. Are any
other printer cards constructed this way? 6522 VIA, 8255 PPI, 6520/6820/6821
PIA etc all would have that capability.
--
David Wilson  School of IT & CS, Uni of Wollongong, Australia