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SubjectRe: zilog 8530 SCC based cards
Klaus Kudielka wrote:
>
> Joerg Reuter wrote:
> > At least the DIL packaged Z8530 varients are pin compatible. But the
> > 85230 isn't worth the price (EUR 16 I think). And the orginal 8530 seems
> > to be out of production.
>
> Well, the Z85230 has one significant improvement: larger FIFO. Without that, I
> wouldn't be able to run 56kbps in interrupt mode. I can't use DMA due to that

Not with PC style environment. You can well do more than 56kbps with an
active card, on a stock Z85C30. About the FIFO: I vaguely remember a
problem with the exception message FIFO getting out of sync with the
Data FIFO, which renders the large buffers a bit useless. It's quite a
pain when you don't know which data byte corresponds to the EOF message
you just received ;-)

Gruss,
Matthias

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