A method of converting synchronous circuit into asynchronous circuit

Abstract

The invention can automatically transform the synchronous pipeline circuit into the asynchronous circuit of bundled data based on the Click unit. First, by comparing the difference between the synchronous pipeline and the data-bundled asynchronous circuit based on the Click unit, the synchronous Verilog code is converted into the Verilog code of the data-bundled asynchronous circuit based on the Click unit through a Tcl script. Then through the Synopsys Design Compiler (DC) tool to synthesize the asynchronous circuit. The invention can quickly realize the conversion of the synchronous pipeline circuit into the Click-based bundled data asynchronous circuit, greatly shortening the cycle of asynchronous circuit design and reducing the difficulty of asynchronous circuit design.

Description

technical field [0001] The invention belongs to the technical field of integrated circuit design, in particular to a method for converting a synchronous circuit into an asynchronous circuit. Background technique [0002] With the continuous improvement of integrated circuit manufacturing technology, asynchronous circuits have the following significant characteristics compared with synchronous circuits. [0003] 1. Low power consumption: asynchronous circuits only consume power when and where they are needed [0004] 2. High speed: the delay of an asynchronous circuit depends on the local delay rather than the longest delay path of the overall circuit [0005] 3. No clock distribution problem: asynchronous circuits do not have a global clock, so no clock tree synthesis is required [0006] However, the design of asynchronous circuits is more difficult. Since asynchronous circuits have not been widely adopted by the industry, there are no mature commercial EDA tools to supp...

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Problems solved by technology

[0005] 3. No clock distribution problem: asynchronous circuits do not have a global clock, so no clock tree synthesis is required

[0006] However, the design of asynchronous circuits is more difficult

Since asynchronous circuits are not widely adopted by the industry, there are no mature commercial EDA tools to support the design of asynchronous circuits

In addition, since many integrated circuit digital engineers receive training in synchronous circuit design, there is a problem of switching from synchronous circuit design thinking to asynchronous circuit design thinking in design, which increases the burden of asynchronous circuit design. difficulty

Finally, there are many types of asynchronous circuits, and there are differences in the design methods of different types of asynchronous circuits, which also raises the threshold of asynchronous circuit design to a certain extent.

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