The endpoint is always an output pin or an I/O pin. The only exception is a constraint timing arc, such as a setup or hold constraint between two input pins. There are two timing arc types: combinational timing arc:combinational timing arc information is used to calculate the physical delay...
时序分析基本概念介绍——Timing Arc 今天我们要介绍的时序基本概念是Timing arc,中文名时序弧。这是timing计算最基本的组成元素,在昨天的lib库介绍中,大部分时序信息都以Timing arc呈现。如果两个pin之间在... arc定义在lib中,net之间没有timing arc,它的delay则有RC参数计算而出。 时序延迟的Timing arc:有以下...
aocv_stage_count_launch_clock_late返回launch clock path上, 在late模式下,指定timing arc的aocv的stage count arc_type返回指定timing arc的属性 delay_max_fall返回在max corner下,指定timing arc的下降沿delay delay_max_rise返回在max corner下,指定timing arc的上升沿delay delay_min_fall返回在min corner下,...
-from指定从哪个library中的pin出发 -of_objects指定library中的cell或者timing arc相关联的timing arc -filter过滤匹配结果 -quiet忽略匹配时的ERROR, warning message 例子 下面的命令可以得到DFF这个library cell中的所有timing arc <CMD> get_property [get_lib_arcs -of_objects DFF] timing_type minimum_period ...
timing__timing_arc(timing_type='combinational') ``` 4.声明不同逻辑状态下的延时弧:根据您的设计需求,您可能需要声明不同逻辑状态下的延时弧,例如同向时序弧、反向时序弧和不定态时序弧。对于每种逻辑状态,您可以使用以下命令进行声明: 同向时序弧: ```python timing__timing_arc(related_pin='A', timing...
China Arc type European standard 5 m timing belt pulleys V belt pulley specifications · European standards : a) V-belt pulley for taper bushing: SPZ, SPA, SPB, SPC b) Adjustable speed V-belt pulleys and variable speed pulleys c) Flat belt pulleys and conveyor ...
• Preset and Clear Timing Arc:定义序向元件清除讯号(Preset 或 Clear) 发生后,资料被清除的速度,依据清除讯号上升或下降及是 Preset 或 Clear 分为 4 类(图八).这个 Timing Arc 通常会被取消掉,因为它会 造成讯号路径产生回路,这对 STA 而言是不允许的. • Recovery Timing Arc:定义序向元件 Clock ...
For example, the timing arcs for NAND and NOR type cells are negative unate.See Figure(b) In a non-unate timing arc, the output transition cannot be determined solely from the direction of change of an input but also depends upon the state of the other inputs. For example, the timing ...
Nevadan Orogeny involved underthrusting of island-arc rocks on the west and significant crustal shortening in the central and eastern belts; features suggest that the orogeny resulted from the collision of the island-arc (western belt) with an andean-type arc (eastern belt) situated at the ...
A bi-directional hydraulic power translating device of the gerotor type having inner and outer rotatable partial meshing gear elements rotatably mounted in... DR Dorff,JA Santi - US 被引量: 53发表: 1974年 Evaporating a material attached to a 2nd electrode by causing an arc discharge between ...