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Monolithic SD Inquery
http://forum.hddguru.com/viewtopic.php?f=10&t=30755		 Page 1 of 1
Author:  jeremyb [ March 19th, 2015, 4:03 ]
Post subject:  Monolithic SD Inquery
I've seen two variations on this monolithic card, I can't make out any signals except data.. also logic is 1.2v

Has anyone seen these before? Am I missing something?

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Author:  Sasha Sheremetov [ March 22nd, 2015, 18:15 ]
Post subject:  Re: Monolithic SD Inquery
Hello Jeremy,

I think we have a very similar card, pinout was reverse engineered (will be added to the next Visual Nand Reconstructor update).
Nothing really special - SM2702 controller inside, ECC/XOR is typical, 8-bit chip, 1 crystal (CE).

Image
Author:  jeremyb [ March 28th, 2015, 0:22 ]
Post subject:  Re: Monolithic SD Inquery
Sasha Sheremetov wrote:
Hello Jeremy,
I think we have a very similar card, pinout was reverse engineered (will be added to the next Visual Nand Reconstructor update).
Nothing really special - SM2702 controller inside, ECC/XOR is typical, 8-bit chip, 1 crystal (CE).


I suppose, maybe my logic analyzer (or me) was having a bad day, I couldn't make any sense of the log. Mine had two separate data buses but I suspect it is SM27xx as well..
Author:  Sasha Sheremetov [ March 28th, 2015, 10:21 ]
Post subject:  Re: Monolithic SD Inquery
Possibly, what the capacity of your card?
Author:  jeremyb [ March 28th, 2015, 19:29 ]
Post subject:  Re: Monolithic SD Inquery
Sasha Sheremetov wrote:
Possibly, what the capacity of your card?

32GB
Author:  Sasha Sheremetov [ March 29th, 2015, 12:04 ]
Post subject:  Re: Monolithic SD Inquery
We had just 8Gb (2C64444BA9), so your one may have 2xCE and two data buses (though it's still not very common).
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