clock spine阶段主要实现H-Tree的搭建,即芯片层次的H-Tree和模块内部的H-Tree,芯片层次的H-Tree需要借助TMAC实现,模块内部的H-Tree需要首先对内部寄存器进行放置约束,然后以mesh buffer为根节点做H-Tree;clock mesh主要完成时钟网的布局、anchor pin的设定以及局部模块驱动器(Mesh buffer)的放置。 2.1 Clock Spine的...
The potential benefits of STI in ASIC design are evaluated using a standard industrial VLSI-CAD flow including sleep-transistor insertion and routing after the clock synthesis and place-and-route of the benchmark circuits. The results show that the clock tree leakage power is reduced by 19–32%...
VLSI Systems Pages 7-18 Signal Delay in VLSI Systems Pages 19-39 Timing Properties of Synchronous Systems Pages 41-70 Clock Skew Scheduling and Clock Tree Synthesis Pages 71-96 Clock Skew Scheduling of Level-Sensitive Circuits Pages 97-120 Clock Skew Scheduling for Improved Reliabil...
Incremental placement or ECO (engineer change order) placement is a new field in VLSI layout to meet the demand of high performance design. In this paper, ... L Yi,X Hong,Y Cai,... - International Conference on Asic 被引量: 29发表: 2001年 Power-aware clock tree planning Modern process...
In order to lessen the reflections at the branch points of the tree, the interconnect width of the segments at each branch point is halved (for a 2× change in the line width) to ensure that the total impedance seen at that branch point is maintained constant (matched impedance). Show ...
Opposite-Phase Clock Tree for Peak Current Reduction(Circuit Synthesis,VLSI Design and CAD Algorithms) Hsu, Opposite-phase clock tree for peak current reduction, IEICE Trans. Fundam. Electron. Commun. Comput. Sci. E90-A (December (12)) (2007) 2727-... NIEH,Yow-Tyng,HUANG,... - 《Ieice...
A method for low power clock tree synthesis using buffer insertion, removal and resizing for high-speed VLSI design is proposed. A developed tool can be embedded in the existing clo
In one embodiment, a method for performing an analysis of a synthesized clock tree can include: displaying a plurality of variation parameters and one or more analysis values on a d
As power consumption of the clock tree dominates over 40% of the total power in modern high performance VLSI designs, measures must be taken to keep it under control. One of the most effective methods is based on clock gating to shut off the clock when the modules are idle. However, prev...
The difference between the clock distributing circuits of the third and fourth aspects of the present invention, the clock synchronizing circuits that receive control voltages are disposed in parallel or in a tree shape (hierarchical structure) on the input terminal side of the external clock. Thus...