Re: Read full 8-bit character from serial port?

[dempson@actrix.gen.nz (David Empson)]

rJorge Chamorro Bieling <bieling@terra.es> wrote:

> Jorge Chamorro Bieling <bieling@terra.es> wrote:
> 
> > David Empson <dempson@actrix.gen.nz> wrote:
> > 
> > > 
> > > The above code is not compatible with any interrupt-driven code using
> > > either port of the SCC (e.g. AppleTalk or the standard serial firmware).
> > 
> > Yep. That's true.
> 
> Well, that's true for AppleTalk, but,
> I'm not so sure that the standard serial firmware does enable
> interrupts... 
> It doesn't in an Apple II... ?

The IIgs firwmare is much more complex than the Super Serial Card. For
starters, it has a relatively large receive and transmit buffer. I
forget the default size, but it is in the order of 1 KB in each
direction. The buffer and SCC chip are serviced by an interrupt handler.

-- 
David Empson
dempson@actrix.gen.nz