> Echoes from the past...

Yes... Many years ago I used a 16R8 (if I remember correctly) to do
address decoding on an ISA bus. As I recall, the address bus was 16 bits
and the 4 msb were multiplexed in for a total of 20 bits. The register
captured the 4 msb while the logic combined it with the other 16 bits to
generate the chip select. Fun with PALASM!

Harold


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