Method and device for constructing clock network

Abstract

The invention discloses a method and device for constructing a clock network. The method for constructing the clock network comprises the steps of obtaining position information of the tail end of the clock network and setting time sequence devices in a setting area. The tail end of the clock network is a wire or a point for setting the time sequence devices in the clock network. When the tail end of the clock network is the wire used for setting the time sequence devices, the tail end of the clock network is used as a symmetry axis to determine the setting area of the time sequence devices, and when the tail end of the clock network is the point used for setting the time sequence devices, the tail end of the clock network is used as a center to determine the setting area of the time sequence devices. By means of the method and device for constructing the clock network, the problem hat in the prior art, resource cost is high or design period is long when the clock network is constructed is solved, and therefore the effects of lowering resource cost for constructing the clock network and shortening constructing period are achieved.

Description

Technical field [0001] The invention relates to the field of sequential circuits, and in particular to a method and device for constructing a clock network. Background technique [0002] The clock signal is used for synchronization in the design of sequential circuits, and uniformly directs when the sequential devices (such as flip-flops, latches, counters, shift registers, and storage, etc.) in the sequential circuit undergo corresponding state changes. The general clock signal processing method is to pass it from a common clock source to the clock entry point of the sequential device. In this process, it is necessary to ensure the integrity and consistency of the clock signal. In large-scale integrated circuits, due to the large number of timing devices and wide distribution, currently distributed clock buffer networks are usually used to distribute and propagate clock signals, that is, to insert multiple serial or parallel clock buffers in the clock propagation path Or an inv...

AI Technical Summary

Problems solved by technology

[0008] The main purpose of the present invention is to provide a method and device for constructing a clock network, so as to solve the problem of high resource cost or long design period for constructing a clock network in the prior art

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