Dave Tweed 13:50 2005-10-02:
>No, the SECDED code you describe would require 8 bits total, 4 data bits
>and 4 check bits.

Regarding SECDED on ECC mamories in PCs, I found this on top of Google search, interesting read:
http://cr.yp.to/hardware/ecc.html

But no, I meant Hamming codes, but was wrong in detail, which Andy W helped gracefully.  Some different explanations:
http://en.wikipedia.org/wiki/Hamming_code
http://www2.rad.com/networks/1994/err_con/hamming.htm
http://www.cs.utsa.edu/~wagner/laws/hamming.html
http://www.ee.unb.ca/tervo/ee4253/hamming.htm
http://www.cs.fiu.edu/~downeyt/cop3402/hamming.html

Thanks guys :)
/Morgan


--
Morgan Olsson, Kivik, Sweden

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