On-chip Variations

OCV(On-chip Variations), caused by PVT variation.

set_timing_derate -early 0.8 (capture clock path for setup checks or launch clock path for hold checks, early < 1 缩小)

set_timing_derate -late 1.1 (launch clock path for setup or capture clock path for hold checks, late > 1 放大)

默认cell_delay和net_delay都加上同一derate值，也可分别加。

set_timing_derate -cell_delay -early 0.9

set_timing_derate -cell_delay -late 1.0

Cell check delays, such as setup and hold of cell, can be derated by using -cell_check option.（调整Cell的setup/hold时间）
-clock option applies derating only to clock paths.
-data option applies derating only to data paths.

(1) No need to derate for late path when Worst PVT condition.

set_timing_derate -early 0.9

set_timing_derate -late 1.0

set_timing_derate -early 0.9 -clock

(2) No need to derate for early path when best-case fast PVT corner.

set_timing_derate -early 1.0

set_timing_derate -late 1.2

On-chip Variations相关推荐

MCU学习笔记_STA及PT工具
一.常用命令 1.restore_session restore_session xx/xx/PTsavesessions/func_hsi_ss_1p35v_125c_max ...
SoC（System on chip）与NoC（network-on-chip)
SoC(System on chip)与NoC(network-on-chip) NoC是相对于SoC的新一代片上互连技术,要深入了解NoC必须深刻认识SoC,故本文组织结构为:  SoC架构  ...
人工智能AI Boosting HMC Memory Chip
人工智能AI Boosting HMC Memory Chip Innosilicon的AI Boosting HMC存储芯片适用于高速,高带宽和高性能存储领域,例如AI边缘,数据中心,自动化等. H ...
(轉貼) Embedded System與System on Chip的差異 (IC Design)
Abstract Embedded System和SOC這兩個名詞常會讓人搞混,本文很淺顯的說明出兩者的差異. Introduction轉貼自Roger的研究生日誌的Embedded System與S ...
【ARM】Tiny4412裸板编程之Chip ID
00. 目录文章目录 00. 目录 01. Chip ID概述 02. 寄存器介绍 03. 程序示例 04. 编译执行 05. 附录 01. Chip ID概述 The Exynos 4412 SC ...
HDU 5536 Chip Factory 字典树+贪心
给你n个数,a1....an,求(ai+aj)^ak最大的值,i不等于j不等于k 思路:先建字典树,暴力i,j每次删除他们,然后贪心找k,再恢复i,j,每次和答案取较大的,就是答案,有关异或的貌似很多 ...
FLASH ERASE：CHIP、BLOCK、SECTOR
FLASH ERASE:CHIP.BLOCK.SECTOR SPI FLASH 的ERASE.READ.WRITE,笔者都用ESL在博文中论述过.ERASE包括CHIP.BLOCK.SECTOR三方面 ...
Chip Factory HDU - 5536
Chip Factory HDU - 5536 题意: 给你n个数,让你从中选出i,j,k三个下标,求最大的 (a[i]+a[j])^ a[k] 题解: 这种查找最大异或一般有两个方向,一个是有公式推 ...
苹果的Swift 2.0，Raspberry Pi Zero vs CHIP以及更多新闻
在本周的开源新闻摘要中,我们来看看苹果公司发布了Swift 2.0开放源代码,Raspberry Pi Zero vs. CHIP等! 2015年11月29日至12月5日的开源新闻摘要苹果发布Swi ...
[Tailwind] Control What Variations are Generated for Each Utility Class Module in Tailwind
In this lesson, we learn how to control what utility classes are generated for each utility class mo ...

On-chip Variations

On-chip Variations相关推荐

最新文章

热门文章