Lpc2000

Not sure if you guys are aware of this document, but this document:

http://www.freescale.com/files/32bit/doc/ref_manual/MC9328MX1RM.pdf

contains information on the MMC/SD protocol, commands and responses, 
password unlock, and even some details on SDIO.  Far from complete, 
but a pretty good source of information.  Even has functional code 
that illustrates how to do many things.

--- In lpc2000@yahoogroups.com, "Rob Jansen" <rob@m...> wrote:
>
> >
> >  Isn't all of the information (with the exception of the 
cryptography
> >  details) available publicly for SD?  I know that the interface
> >  specifications, protocols and commands for implementation of SD 
are
> >  pretty widely available.
> 
> Yes and No.
> If you go hunt for the current specs you arrive at the SD Card
> Association. A stripped down version of the spec is available as a 
free
> download, you have to pay (and AFAIK become a member) to get the 
full
> specs.
> I am not sure about use of name/SD compatibility and the logo on 
your
> commercial product. It may be that you have to become an SD Card
> Association member but it can also be such that you are allowed to 
use
> this when you use a product from a member (e.g. use an SD 
interface like
> in the LPC3000).
> 
> The public available spec is not complete. It does not mention any
> commands and responses that are used to communicate with the card. 
Some
> companies seem to relax this a bit an they put a modified version 
(or
> their implementation of the spec) as free on the web. I know that 
Toshiba
> and Sandisk have specs on their websites that contain the full
> information.
> 
> >  What is it that this expensive SDIO membership gets you?
> 
> Being an SD Association member gives you access to the latest 
specs. The
> specs for SDIO (used by I/O cards like Bluetooth, 802.11g 
wireless, camera
> modules etc.) I could not find for free on the web.
> 
> For most of us the specs from SanDisk or Toshiba will do.
> Also the older MMC specs will do since the SPI mode for SD and MMC 
is the
> same.
> 
> Rob
>