Set clock exclusivity
Webset_clock_group -asynchronous. Both constraints prevent the Compiler from optimizing slack between asynchronous domain crossings. set_clock_group is the most aggressive … Webset_clock_groups Description This is an SDC command which disables timing analysis between the specified clock groups. No paths are reported between the clock groups in both directions. Paths between clocks in the same group continue to be reported.
Set clock exclusivity
Did you know?
WebThe Set Clock Groups (set_clock_groups) constraint allows you to specify which clocks in the design are unrelated. By default, the Timing Analyzer assumes that all clocks with a … Web10 Sep 2024 · 一、最简单的设置（set_clock_exclusivity） 对于时钟MUX而言，其output_pin上的时钟在任一时刻一定唯一。 可以使用如下命令： set_clock_exclusivity - …
WebDescription set_clock_groups is used to define asynchronous/exclusive clock groups so that paths between these groups are treated as false paths. It has three mutually exclusive arguments: -physical_exclusive, -logical_exclusive and -asynchronous. What are the differences between the three arguments? Solution WebThe "set_clock_groups" command is a VERY DANGEROUS command. It disables all timing checks on any paths between the two domains. If paths exist between clock domains, then they need clock domain crossing circuits (CDCCs) and the vast majority of …
WebExclusive Clock Groups (-logically_exclusive or -physically_exclusive) You can use the -logically_exclusive option to declare that two clocks are physically active simultaneously, …
Web26 Aug 2024 · 4. Change the time your boiler activates with the arrow buttons. Once you select the day, press the arrows to change the hours and minutes for your boiler to turn on. Hold the button down to cycle through the time faster. When the right time is selected, press the “Select” or “Enter” button to confirm the time.
Web18 Sep 2013 · What clocks are not active at the same time: Those clocks grouped in one group? So does "-exclusive" mean that only one clock of the clocks in each clock group … sywr card loginWeb23 Dec 2015 · With the set_clock_groups you can tell TimeQuest that it should ignore paths for clocks which are in different groups. You should be really sure what you want to do if you use this command! Questions: As the synthesis tool is fully aware of the design's internal connectivity - it can see which signals correspond to which clock domains. sywr classesWeb24 Oct 2024 · set_clock_groups 命令有三个选项：“-asynchronous”，“-logically_exclusive”，“-physically_exclusive” 当 set_clock_groups 命令中多个 groups 被指 … syworld biking shortsWebMicrosemi Corporate Headquarters One Enterprise, Aliso Viejo, CA 92656 USA Within the USA: +1 (800) 713-4113 Outside the USA: +1 (949) 380-6100 sywr credit cardWebFor example, it would be incorrect to specify a clock pair as asynchronous when it is in fact physically exclusive or logically exclusive. Below are the user clock constraints and four “set_clock_groups”: create_clock -name CLKA -period 1.00 [get_ports CLKAB] create_clock -name CLKB -period 1.50 [get_ports CLKAB] –add syword of fameWeb28 Jan 2014 · But in PrimeTime command "set_clock_groups" have two switchs "-logically_exclusive " and "-asynchronous" . Could anyone explain what is difference between those two clock groups and how does it affect in terms of timing analysis if I declare clock group as "-asynchrouns" instead of "-logically_exclusive". sywmc on credit reportWeb10 Sep 2024 · 如下图3所示：. 此时有两种方式去完成完整正确的约束：. ①在mux的输出点 创建2个派生时钟 ，且另外用一个额外的时钟分组将这2个派生时钟设置为 物理互斥 （ -physically_exclusive ）。. ②在MUX/I0前 加一个时钟门控ICG 如下图4，此时可以在ICG输出点创建一个一分频 ... sywr deals