Subject: Re: more on the 400-series utility chip
To: Herb Peyerl <>
From: mike smith <>
List: port-hp300
Date: 03/22/1997 01:29:03
Herb Peyerl wrote:
> mike smith <>  wrote:
>  > Am I getting too demanding yet?  How about bit assignments
> nope. sorry.

Ok; that's fair enough 8)

>  > Any idea which IPL this part is normally on?
> nope.

I'll have to study how to vector interrupts in the hp300 kernel
then, or perhaps someone else will have some ideas on how to
track it down.
> 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?

It actually looks like it's designed for handshaking, which kinda 
duplicates the 8250 MCR/MSR stuff.  Weird.
Thanks a heap for your help here!

Mike Smith  *BSD hack  Unix hardware collector
The question "why are the fundamental laws of nature mathematical"
invites the trivial response "because we define as fundamental those
laws which are mathematical".  Paul Davies, _The_Mind_of_God_