一种异步fifo实现(论文+hdl实现)
FIFOs are often used to safely pass data from one clock domain to another asynchronous clock domain. Using a
FIFO to pass data from one clock domain to another clock domain requires multi-asynchronous clock design
techniques. There are many ways to design a FIFO wrong. There are many ways to design a FIFO right but still
make it difficult to properly synthesize and analyze the design.
This paper will detail one method that is used to design, synthesize and analyze a safe FIFO between different clock
domains using Gray code pointers that are synchronized into a different clock domain before testing for "FIFO full"
or "FIFO empty" conditions. The fully coded, synthesized and analyzed RTL Verilog model (FIFO Style #1) is
included.
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