Subject: Re: problem: need tech specs of magnum 4000SC
To: Noriyuki Soda <email@example.com>
From: Mark Abene <firstname.lastname@example.org>
Date: 10/16/2000 19:13:18
On Tue, Oct 17, 2000 at 02:25:47AM +0900, Noriyuki Soda wrote:
> Sorry for late response.
> >>>>> On Tue, 10 Oct 2000 11:41:23 +0900 (JST),
> Noriyuki Soda <email@example.com> said:
> > I cannot access the technical specs at least until this weekend,
> > since I'm in the middle of a business trip now.
> > Also, I have vague memory that the specs only describes the behaviour
> > of the currently coded case of the R4030_SYS_IT_STAT.
> The memory is correct.
> ARC chip R4030 (and it's second source NEC uPD31432) manual describes
> that the address of interval timer status register is 0x80000230.
> If ARC chipset generation of your machine is newer than original
> Magnum, interval timer status register address may be 0x800001a8
> (see pica/rd94.h), but your machine seems to be not so newer, mmmm.
Is there any way I can tell if I'm reading the correct register based on the
contents? Is this supposed to be a bitmapped register of flags? Should I
expect to see a certain value if I printf the contents? What about IT_VALUE?