Re: quick start in new motherboards

["Peter Marek" <peter.marek@marekmicro.de>]

Ted,

although there is a minimum time from the rising edge of RST to the first
config access in the PCI2.2 specification, most BIOS/mainboard vendors do
not adhere to this parameter in "QuickStart" mode (which is legal in my
opinion since "Quick Starts" should be quick, indeed.).

The actual time depends on processor type and speed, mainboard and BIOS.
There are no general guidelines how quick "Quick" is...

Regards,

Peter Marek
General Director
MarekMicro GmbH
tel.: 049-9621-9732-110
fax: 049-9621-9732-199
www.marekmicro.de

----- Original Message -----
From: "Ted Firlit" <firlit@utmc.aeroflex.com>
To: "Peter Marek" <peter.marek@marekmicro.de>
Cc: "Marco Serafini - QR s.r.l" <r&d@qrverona.it>; <pci-sig@znyx.com>
Sent: Thursday, February 14, 2002 4:11 PM
Subject: Re: quick start in new motherboards


> Peter,
>
> Do you have any info as to just how fast the "Quick Start" BIOS gets from
RST# removal to PCI config cycles?
>
> thanks,
>
> Ted
>
> Peter Marek wrote:
> >
> > Hi,
> >
> > this is true. The cause for this strange behaviour is that these chips
load
> > a part of their config space from an external serial EEPROM. If this
takes
> > too long (or the Quick Start is too fast), the chips will not be
configured
> > correctly.
> >
> > Non volatile solutions for custom backend busses like QuickPCI from
> > QuickLogic do not face these problems.
> >
> > regards,
> >
> > Peter Marek
> > General Director
> > MarekMicro GmbH
> > tel.: 049-9621-9732-110
> > fax: 049-9621-9732-199
> > www.marekmicro.de
> >
> > ----- Original Message -----
> > From: "Marco Serafini - QR s.r.l" <r&d@qrverona.it>
> > To: <pci-sig@znyx.com>
> > Sent: Thursday, February 14, 2002 12:17 PM
> > Subject: quick start in new motherboards
> >
> > > Dear PCI experts,
> > >
> > > I've read in a tech-forum that some PCI cards based on nonstandard
> > > PCI-to-local bus chips
> > > (for example, PLX or ALTERA FLEX/ACEX) lost their PCI configuration
space
> > on
> > > early BIOS start.
> > > Particularly on the new motherboards with "quick start" CMOS option.
> > >
> > > Have you ever heard this topic?
> > > Have you ever met any similar problem with modern motherboards?
> > >
> > > Thanks for comments.
> > >
> > > Marco