WebJul 20, 2024 · What are the CTS inputs? Placement DB CTS Spec File What does the CTS Spec File contain? 1. Inverters or buffers to be defined which will be used to balance the clock tree. 2. CTS Exceptions (End points of clock… Why power stripes routed in the top metal layers? 为什么电源走线选用最上面的金属层? 因为顶层金属通常比较厚,可以通过较大的电流 1.高层更适合globalrouting.低层使用率比较高,用来做power的话会占用一些有用的资源, 比 … See more What are several factors to improvepropagation delay of standard cell? 哪些因素可以影响标准单元的延迟? 答案: 1) PVT … See more What would you do in order to not usecertain cells from the library? 如何禁止使用库里面的某些单元? 禁用就用set_dont_use禁止修改就用set_dont_touch See more Why do you use alternate routing approach HVH/VHV(Horizontal-Vertical-Horizontal/ Vertical-Horizontal-Vertical)? 为什么要使用横竖交 … See more How to fix x-talk violation? 如何解决线间干扰? 答案: 1)upsize victim net driver, downsize aggressor net driver 2)increase wire space, shielding, change layer,change wire width 3)insert butter in victim net 能答出 … See more
CTS Spec File in VLSI Physical Design
WebOct 8, 2024 · PD3_CTS_r1.p4_v6.zip 5.68 MB USB Power Delivery Compliance Test Specification. Read More. Test Specification : USB Power Delivery : 02/03/2024: hut1_4.pdf 4.22 MB HID Usage Tables 1.4. ... Micro-USB Cables and Connectors Specification Revision 1.01 as of April 4, 2007 and corresponding Adopters Agreement ... http://www.ctschip.com/CTS-Company.html circulated 1964 kennedy half dollar value
VLSI Interview QA Archives - iVLSI
WebDec 15, 2024 · clkb是clka的生成时钟,在CTS的spec文件中如何定义这两个时钟?假设clka和clkb之间的FF有时序收敛的要求。 难度:3. 答案: 在CTS的spec文件中定义 clka 是 root,clkb 为 throughpin,再加上那些应该有的skew,transition,insertion delay等就好了,其它的事CTS会给你做. 010) WebApr 1, 2024 · Clock Tree Synthesis,顾名思义,就是对design的时钟树进行综合。. 主要的目的是让每个clock都能够在尽量短的时间内传达到它们驱动的所有DFF (寄存器)。. 对于CTS,我们有三个指标希望能够尽量做到更好:. 每个clock到达其所驱动的sink (DFF)的latency都尽量短;. 每个clock ... Web因此,今天我们谈谈CTS的设置。 有人可能担心不同的工具中CTS的方法是否会有不同。以我接触过几种主要的工具的经验来看,虽然某些设置的叫法可能不同,但是其本质并没 … circulated 1944 steel penny value