timing verification----recovery timing check
来源:互联网 发布:网络摄像头在线直播 编辑:程序博客网 时间:2024/04/29 20:47
A recovery timing check ensures that there is a minimum amount of time between the asynchronous signal becoming inactive and the next active clock edge. In other words, this check ensures that after the asynchronous signal becomes inactive, there is adequate time to recover so that the next active clock edge can be effective. For example, consider the time between an asynchronous reset becoming inactive and the clock active edge of a flip-flop. If the active clock edge occurs too soon after the release of reset, the state of the flip-flop may be unknown. The recovery check is illustrated in Figure 8-21. This check is based upon the recovery time specified for the asynchronous pin of the flip-flop in its cell library file, an excerpt of which is shown below.
pin(RSN) {
. . .
timing() {
related_pin : "CK";
timing_type : recovery_rising;
. . .
}
}
Like a setup check, this is a max path check except that it is on an asynchronous signal.
The Endpoint shows that it is recovery check. The recovery time for the UFF6 flip-flop is listed as the library recovery time with a value of 0.09ns. Recovery checks also belong to the async default path group.
- timing verification----recovery timing check
- timing verification---setup timing check
- timing verification--Removal Timing Check
- Removal Timing Check & Recovery Timing Check
- timing verification---hold time check
- timing verification---虚假路径
- timing
- timing verification--Half-Cycle Paths
- timing check---多周期路径
- 验证时间攻击 Verification Timing Attack
- Timing Aspects
- Animation Timing
- Animation Timing
- Timing wheel
- Timing相关
- Smart Timing Mechanism
- VGA timing information
- I2C timing pattern
- UpdateData() --MFC函数
- 北电资料百度文库
- Android菜单详解——理解android中的Menu
- RK2908开机时间分析及优化
- django官方文档——统计查询
- timing verification----recovery timing check
- awk指令详解的笔记
- Step By Step(C++模板推演)
- MySQL主从复制原理
- 对vc++6.0的程序进行移植时出现的错误及处理(一)
- Linux 共享库配置 /etc/ld.so.conf
- 孩子睡好觉的7个方式
- windows下给Qt配置环境变量
- 删除HTML样式、脚本