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Chapter 2: Custom single-purpose processors - page 27 / 29

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Embedded Systems Design: A Unified Hardware/Software Introduction, (c) 2000 Vahid/Givargis

Optimizing the datapath

Sharing of functional units

one-to-one mapping, as done previously, is not necessary

if same operation occurs in different states, they can share a single functional unit

Multi-functional units

ALUs support a variety of operations, it can be shared among operations occurring in different states

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