COEN 180
Homework 4
HW1 HW2 HW3 HW4 HW5 HW6 HW7 HW8

due Monday, April 28


  1. In your own words, explain the two major cache write policies of write-through and copy-back. Explain their advantages and disadvantages in the following situations:
    1. A L2 cache consisting of high speed SRAM and serving as a cache for a DDR DRAM main memory.
    2. A 4 MB DRAM cache in a disk controller of a hard drive with 100 GB.
  2. Explain the design of a ferroelecric memory cell and its functioning. To find out about ferroelectric memory, you might want to do a web search. Here are two references to start with:
    FRAM Technology Notes
    Ph.D Thesis of Klaus Dragosits
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