National Semiconductor 48-bit and 56-bit ECC polynomials

Eric Smith spacewar at
Fri Nov 18 19:53:10 CST 2016

On Fri, Nov 18, 2016 at 1:48 PM, Al Kossow <aek at> wrote:

> is there any way to find out what the system and disk controller board was?

Unfortunately not.

It's possible that the 56-bit ECC code is generated by something other than
division by a polynomial in GF(2).  For instance, it could be interleaved
Reed-Solomon coding.

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