Re: [pci] Information on the PCI bus

[billy_bob@mailexcite.com]

Thanks, I think I am going to buy that book.  I did notice that it 
supports up to PCI 2.2, however I think PCI 2.3 was just released.  Do 
you know how long until PCI 2.3 will be used in all new motherboards?  
(A guess)

John Stone

----- Original Message ----- 
From: Michael Ashton <data@i... > 
To: pci@o...  
Date: Wed, 3 Apr 2002 11:52:33 -0700 
Subject: Re: [pci] Information on the PCI bus 

> 
> 
> On Wednesday 03 April 2002 11:29 am, you wrote: 
> > It appears that the company I work for has to be a member 
> company, or 
> > I have to pay $3000 to get information on the PCI bus.  Is 
> there anyway 
> > to get the information for free? 
> 
> The standard isn't freely downloadable, but you don't have to be a 
> PCI-SIG 
> member; the standard itself is in the $100 neighbourhood (I think), 
> if you're 
> not a PCI-SIG member. 
> 
> A slightly cheaper alternative is to get the Mindshare book, called 
> "PCI 
> System Architecture". It's meant as a supplement to the standard, 
> but is very 
> complete; I was able to design a PCI card using it, except for the 
> physical 
> dimensions, for which I used a template. 
> 
> In answer to your question, though: you can draw up to 500 mA from 
> the +12 
> line, and 100 mA from the -12 line. From the 5V lines you can draw 
> 5A, and 
> from the 3.3V lines you can draw 7.6A. The maximum power a card 
may 
> consume 
> is 25W. 
> 
> regards -- Michael Ashton <data@i... > 
> 
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