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The Si2 Common Power Format, or CPF is a file format for specifying power-saving techniques early in the design process. In the design of integrated circuits , saving power is a primary goal, and designers are forced to use sophisticated techniques such as clock gating , multi-voltage logic, and turning off the power entirely to inactive blocks.
A design must contain these enable conditions in order to use and benefit from clock gating. This clock gating process can also save significant die area as well as power, since it removes large numbers of muxes and replaces them with clock-gating logic. This clock-gating logic is generally in the form of "integrated clock gating" (ICG) cells.
There are file formats that can be used to write design files specifying the Power intent and implementation of a design. The information in these files allow the EDA tools to automatically insert power control features and to check that the result matches the intent. The IEEE DASC provides a home for developing this format in the form of the ...
Power gating is a technique used in integrated circuit design to reduce power consumption, by shutting off the current to blocks of the circuit that are not in use. In addition to reducing stand-by or leakage power, power gating has the benefit of enabling Iddq testing .
The goal of signal gating is to selectively allow or block the transmission of signals through a circuit or system. In signal gating, a gating signal is used to modulate the passage of the main signal. The gating signal acts as a control mechanism, determining when the main signal can pass through the gate and when it is blocked.
In integrated circuit design, physical design is a step in the standard design cycle which follows after the circuit design.At this step, circuit representations of the components (devices and interconnects) of the design are converted into geometric representations of shapes which, when manufactured in the corresponding layers of materials, will ensure the required functioning of the components.
It is a binary file format representing planar geometric shapes, text labels, and other information about the layout in hierarchical form (two-dimensional/2D CAD file format). The data can be used to reconstruct all or part of the artwork to be used in sharing layouts, transferring artwork between different tools, or creating photomasks .
Glitch power comes under dynamic dissipation in the circuit and is directly proportional to switching activity. Glitch power dissipation is 20%–70% of total power dissipation and hence glitching should be eliminated for low power design. Switching activity occurs due to signal transitions which are of two types: functional transition and a ...