>Just like it doesn't matter how you wire up the data lines or even the low
>order address lines on static ram chips (small embedded systems using 805x
>or 68xx micros).  Since the same wire connections are being used to write
>and read the data, the actual order doesn't matter.  Do the same to the ROM
>chips and confuse the heck out of someone trying to reverse-engineer your
>product.
>
>Some people used to have a real problem with that concept.  But it sure
>made it easier to lay out PCBs <grin>.

I believe I have heard of this being done to make reverse engineering a
product somewhat harder to do also. Remove the ROM and dump it into a
disassembler and the code looks like nothing sensible - Huh? Well you did
assume that the LSB of the processor went to the ROM pin labelled LSB, but
it doesn't really.

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