glue logic

A simple logic circuit that is used to connect complex logic circuits together. For example, an ASIC chip may contain large functions, such as a microprocessor, memory block or communications block, which are tied together via small amounts of glue logic. Glue logic was widely used in the past when fewer circuits were placed on the same chip.

At the printed circuit board (PCB) level, glue logic may be implemented with simple chips ("jelly bean" chips) that contain a few gates all the way to programmable logic devices. In fact, the first programmable gate array chips were used for these interfacing purposes (see FPGA). See IC macro, standard cell and discrete logic.

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References in periodicals archive

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44 per cent of software engineers and 40 per cent of hardware designers predicted a significant shift in the use of FPGAs away from glue logic, prototyping and ASIC replacement to become a platform for implementing flexible designs.

Electronics design cannot cope with pace of market change. (IT News)

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