Magic Blue Smoke

Archive for October 2009


Isolation Cell Usage Tips

Isolation cells are used in almost all power gated designs.  Given below are some tips about these cells, this information is based on my experience working with various designers.  (1) Output signal isolation is usually a better choice than the input isolation . (2) Input isolation is reasonable on designs that have controllable independent power […]

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Posted in low power general | 2 Comments »


Why is Low Power Based Optimization more challenging for the tools

  My apologies for changing the title of my previous post. I realized that most of the optimization challenges are primarily due to the design requirements not UPF requirements. UPF is just a medium to define power intent, similar to verilog defining the logic intent of the design. continuing on the same topic, few more […]

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Posted in low power general | 1 Comment »