PROGRAMMABLE
ASIC LOGIC
CELLS
All programmable ASICs or FPGAs contain a
basic logic cell
replicated in a regular array across the chip (analogous to a base cell in an MGA). There are the following three different types of basic logic cells: (1) multiplexer based, (2) look-up table based, and (3) programmable array logic. The choice among these depends on the programming technology. We shall see examples of each in this chapter.
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