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The clearest instruction encoding I've seen is in the Elan datasheet for the EM78P153S. I've not seen my cpu image yet, I'm still trying to find out how to read it and hoping the security feature isn't set. The Sonix chip needs a special reader/burner. The Elan chip I'm not sure of but think it needs dedicated hardware too. Unfortunately, the PIC equivelent is the 8 pin A variety, not the 14pin SOP B variety which my sonix chip is. New cpu's are cheap - about 25 cents on Aliexpress, but the MP-III programmer is more like 200 usd. Neither of the equivelent 14 pin cpu's are in the device list for the common GQ-4X or TL866 programmers and so far I can't find the programming or read back procedure anywhere. It looks like the manufacturers keep it proprietry to sell programmers.
Git
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