The Q drive from Agate uses a Philips node controller and a SX.

> -----Original Message-----
> From: Andrew Warren [mailto:aiw@CYPRESS.COM]
> Sent: Monday, October 29, 2001 3:50 PM
> To: PICLIST@MITVMA.MIT.EDU
> Subject: Re: [EE]: USB Memory Key
>
>
> Josh Koffman <PICLIST@mitvma.mit.edu> wrote:
>
> > Has anyone thought about making a USB Memory Key? IBM makes them,
> > as I'm sure others do, but at a price of $64CDN for 8MB of memory,
> > I can't justify it. Basically what it is is a small device that
> > when plugged into a USB port, the computer recognizes as almost
> > like a disk drive. It's a neat idea, and I was wondering if it
> > could be done cheaper than buying from them. I don't really need
> > 8MB of memory, but maybe a meg or two would be nice. Any ideas?
>
>     Josh:
>
>     Windows Me, 2000, and XP (and recent versions of the Mac OS and
>     Linux) include support for the USB Mass Storage Class, so you
>     don't have to write any PC-side drivers; you just need to build
>     a peripheral that's compliant with the Mass Storage Class spec
>     and can communicate with a hard drive (or CompactFlash card) via
>     ATAPI.
>
>     Cypress Semiconductor, of course, has multiple solutions and
>     owns a significant majority of the market for these things.
>
> > Anyone know how the commercial products work (ie. what
> > microcontroller, etc)?
>
>     Most use Cypress's EZ-USB FX (full-speed programmable), EZ-USB
>     FX2 (high-speed programmable), SLIIRIDE or ISD-200 (full-speed
>     non-programmable), or ISD300 (high-speed non-programmable).
>
>     I've never seen a commercial USB Mass Storage device that used
>     any other USB microcontrollers (although there are some
>     full-speed devices that use custom ASICs).
>
>     -Andrew
>
>
> === Andrew Warren -- aiw@cypress.com
> === Principal Design Engineer
> === Cypress Semiconductor Corporation
> ===
> === Opinions expressed above do not
> === necessarily represent those of
> === Cypress Semiconductor Corporation
>
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