参考文献: [1]:Clock Domain Crossing (CDC) Design & VerificationTechniques Using SystemVerilog [2]:Mike Stein, Paradigm Works.Crossing the abyss:asynchronous signals in a synchronous world [3]:Clifford E. Cummings.Simulation and Synthesis Techniques for Asynchronous FIFO Design [4]:Ran Ginosar.Metas...
Clock Domain Crossing跨时钟域检查 描述 如今典型的SOC 芯片都功能复杂、接口丰富,在众多复杂功能中不可能所有功能都同时工作,为了能耗,大多数SOC 芯片都会切分成多个电压域,而丰富的接口就意味着庞杂的clock 和reset. 信号跨越不同domain 时都需要特别处理,比如跨power domain 时需要插入isolation 或level shifter 或 ...
本系列将对sunburst design网站的2008最佳文章《Clock Domain Crossing (CDC) Design & Verification Techniques Using SystemVerilog》进行翻译和基于自我理解的分析阐述,本文介绍多信号跨时钟域传输。 目录 多信号跨时钟域传输 多比特 CDC策略 多比特信号融合 情况1——2个同步控制信号 解决方法——融合 情况2——2个...
上次写了跨时钟域设计MCP公式不带反馈的实现【Verilog】跨时钟域设计Clock Domain Crossing (CDC) Design(MCP formulation without feedback ) 这次是写MCP公式带确认反馈的跨时钟域设计。
本系列将对sunburst design网站的2008最佳文章《Clock Domain Crossing (CDC) Design & Verification Techniques Using SystemVerilog》进行翻译和基于自我理解的分析阐述,本文介绍快满时钟数据传输问题。 慢时钟到快时钟 慢时钟数据传递到快时钟域时,由于采样时钟速率更高,所以一般慢时钟域的数据都会被采集到,不会出现问题...
异步FIFO:异步FIFO 应该是大家最熟悉的同步电路了,在学习Verilog 的时候都应该写过异步FIFO. 异步FIFO 还是常见的笔试面试题,根据需求算FIFO 深度。 CDC check 在检查什么? 实现端的CDC check 工具,在做CDC check 时,首先根据SDC 确定时钟域,然后在设计中提取同步电路;然后再分析同步电路的各种问题,常见的检查有:...
Clock Domain Crossing (CDC) Design & Verification Techniques Using SystemVerilog Pragmatic Simulation-Based Verification of Clock Domain Crossing Signals and Jitter Using SystemVerilog Assertions Crossing the abyss: asynchronous signals in a synchronous world ...
内容提示: SNUG-2008Boston, MAVoted Best Paper1st PlaceWorld Class Verilog & SystemVerilog TrainingClock Domain Crossing (CDC) Design & VerificationTechniques Using SystemVerilogClifford E. CummingsSunburst Design, Inc.cliffc@sunburst-design.comABSTRACTImportant design considerations require that multi-clock...
Clifford Cummings
SystemVerilog Assertions include capabilities to track data signals that cross clock domains. However, there can be a significant GOTCHA when using SVAssertions across clock domains verses the actual signal activity. This is due to the difference between event driven signal activity and SVAssertion ...