Tag: Clock Domain Crossing

Designing a Two-Stage Flip-Flop Synchronizer to Eliminate Metastability in Clock Domain Crossing

July 19, 2025July 18, 2025 vlsifacts No Comments

Welcome back to our Clock Domain Crossing (CDC) series! In our first post, we introduced the critical challenges of CDC in digital designs. In this article, we focus on one of the most fundamental and effective techniques to tackle metastability, a core issue in CDC: the two-stage flip-flop synchronizer. Understanding metastability and how this simple synchronizer design…

Digital Electronics, SoC, Verilog

Clock Domain Crossing (CDC) Fundamentals: What Every Digital Designer Should Know

July 9, 2025July 18, 2025 vlsifacts No Comments

In today’s complex digital systems, multiple clock domains are the norm rather than the exception. Whether you’re designing an FPGA, ASIC, or SoC, it’s almost guaranteed that different parts of your chip will operate on different clocks. This creates a critical design challenge known as Clock Domain Crossing (CDC). In this first post of our CDC…

Digital Electronics, SoC