Date: Thu, 11 Jul 2002 09:51:54 +0000
From: "neil barnes" <[EMAIL PROTECTED]>
Subject: Re: [LIB] L50 & USB?


>Date: Thu, 11 Jul 2002 02:32:09 -0600 (MDT)
>From: "M. Warner Losh" <[EMAIL PROTECTED]>
>Subject: Re: [LIB] L50 & USB?
>
>In message: <[EMAIL PROTECTED]>
>             <[EMAIL PROTECTED]> writes:
>: > I think 16 bit cards can be 3.3 volt too can't they?
>:
>: I believe not, no - only PCcard is "dual" voltage
>
>You are mistaken.
>
>You can have 3.3V 16bit cards.  They are keyed the same way that 3.3V
>CardBus cards are keyed, but lack the attracive copper dimples.
>
>I have several 3.3V 16-bit cards in my pccard collection.
>
>The real issue with CardBus is that the 32-bit bus requires a special
>CardBus bridge.  The Libretto L50 has only a PCMCIA bridge, which only
>supports the 16-bit cards.  If you file down the 3.3V 16-bit cards,
>they will work in a Libretto 70 (and I'm pretty sure a 50 too).

Is that empirically observed, or theory? I'd think that if the 50/70 driver 
had 3.3v drive capability, it would have a socket suitable to accept the 
cards - though it's a long time since I've looked at the spec :)

Neil

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