Trigger automatic layout method and device

Abstract

The present invention provides a method and device for automatic layout of triggers, wherein the method includes: performing cluster analysis on each trigger according to attribute information of each trigger, and dividing each trigger into at least one trigger class; The class includes at least one trigger; move each trigger class to reduce the contact area between each trigger class; according to the original coordinate information of each trigger class before moving each trigger class, and each trigger class after moving each trigger class The coordinate information of each trigger class, and the preset constraint relationship, determine the movement coordinate information of each trigger class to determine the moving position of each trigger class; move each trigger in each trigger class to determine the trigger in each trigger class The above steps are repeated until each trigger class satisfies the preset condition for reducing the overlap of trigger classes. The overlapping phenomenon of flip-flop classes can be reduced, the performance of the local clock system is enhanced, and the clock power consumption of the local clock system is reduced.

Description

technical field [0001] The invention relates to semiconductor integrated circuit technology, in particular to a flip-flop automatic layout method and device. Background technique [0002] In the field of integrated circuit design, the clock system is an important part of the integrated circuit, and in the design of high-performance integrated circuits, the clock system is divided into a global clock system, a regional clock system and a local clock system. The local clock system is connected with the sequential unit flip-flops of the integrated circuit to form a sub-clock tree; the distribution of flip-flops directly affects the performance of the local clock system. In the local clock system, the distribution of flip-flops is required to have a certain regularity or spatial consistency. The regular design of flip-flops is conducive to optimizing the bus length of the local clock system, reducing the clock power consumption of the local clock system, and meeting the requirem...

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a flip-flop automatic layout method and device, which are used to solve the phenomenon of overlap of flip-flop classes that still exists after multiple clustering of each flip-flop class in the prior art, which in turn affects the performance of the local clock system , the problem of increasing the clock power consumption of the local clock system

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