>> 4-bit wide bus that real controllers can use.
>=20
> Is it easy to bit-bang this on PICs/dsPICs/PIC32s?

BTW, I mentioned the multi-card reader I have has a Realtek
RTS5161 controller inside. I'm sure I read that it's based on a
6502. No doubt the 5161 has fast dedicated h/w for the data
interfacing. Perhaps the 6502 is to blink the LED ;-)

Joe
--=20
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