bit-banging memory card reader

Hello there,

This is slightly off topic, because it does not relate directly to Linux 
development, but I am attempting to build an external bit-banging device 
to read and write gamecube memory cards, using an old 6502-based 
microcomputer equipped with a very useful 6522 VIA.

It would be helpful for the purposes of testing the device to know what 
would be an appropriate response to the 0x85 "read ID" command. I notice 
from the Macronix 4004/05 datasheets that the Macronix manufacturer code 
(the first byte of the two-byte response to an 0x85) is 0xC2 - does this 
hold for the memory cards as well ?

Any other information that might be useful would be appreciated. I'm 
doing most of my work with a nintendo original 59 block card. I'm aware 
the cards are locked by default, but I think I may have found a way 
round that.

many thanks.

Ali


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