Subject: Re: more on the 400-series utility chip
To: mike smith <>
From: Herb Peyerl <>
List: port-hp300
Date: 03/21/1997 07:42:20
mike smith <>  wrote:
 > Am I getting too demanding yet?  How about bit assignments

nope. sorry.

 > Any idea which IPL this part is normally on?


 > > as far as pio goes:
 > > 
 > >         piobase+0x0             parallel input register
 > >         piobase+0x4             input polarity register
 > >         piobase+0x8             input edge/level register
 > Teaser, I'm sure.  Where's the pio register?  Wonder if it
 > actually goes anywhere on the 425?

hmmm... I'm wondering if this is just a way of directing the util 
chip to do pio for you? ie: the intel equivalents to inb/outb?

naw, that's dumb... anyway, I can't find any additional references to 
it in my docs.