National Semiconductor 48-bit and 56-bit ECC polynomials

Al Kossow aek at
Thu Nov 17 20:54:45 CST 2016

On 11/17/16 3:07 PM, Eric Smith wrote:
> On Thu, Nov 17, 2016 at 3:59 PM, dwight <dkelvey at> wrote:
>> Do you have working hardware?
> No, only a drive that 48-bit ECC.


For a while, I was collecting ISA controllers that weren't adaptec, wd, dtc, or omti
for the uncommon controllers. I just bought a multibus hd/flpy board for the signetics
68454 on it. I may have a board with a 8466. If nothing else, there are a few domestic
8466 chip pulls on eBay for $13 that maybe you could decap or push a bitstream into.

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