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Line 1: In [[electronics]], '''glue logic''' refers to the custom [[electronic circuitry]] needed to ~~achive~~achieve compatible interfaces between two (or more) differrent off-the-shelf [[integrated circuits]]. This is often achieved by employing a few [[7400 series]] compatible components, or, in complex cases, a [[CPLD]] or [[FPGA]]. An example of glue logic is the [[address decoder]] which with older processors like the [[6502]] or [[Z80]] had to be added externally to divide up the addressing space of the processor into RAM, ROM and I/O. Newer processors such as the Zilog [[Z180]] instead have an internal address decoder so glueless interfacing to the most common external devices becomes possible.

Glue logic: Difference between revisions