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Power Implications of Implementing Logic Using FPGA Embedded Memory Blocks

On-chip user memory has become a common resource on modern FPGAs.This memory comes in the form of configurable Embedded Memory Blocks (EMB).  EMBs are very area efficient for implementing designs that require storage; However, for logic-intensive designs that do not require storage, the chip area devoted to EMBs become wasted. This need not be the case if the EMBs are configured as Read-Only-Memories (ROMs) and used to implement logic. Recall that a ROM is essentially a large Look-Up-Table (LUT), and LUTs are the traditional resource used to implement logic on an FPGA.

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