The clock tree used in a region is called a regional clock tree (RCT). The synchoros VLSI design style requires that the RCT, like the regional NoCs, is also created by abutting its fragments. The RCT fragments
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%...
S.Y. Kung and R.J. Gal-Ezer,Synchronous Versus Asynchronous Computation in Very Large Scale Integrated Array Processors Google Scholar Allan L. Fisher and H.T. Kung,Synchronizing Large VLSI Processor Arrays, IEEE Transactions on Computers, Vol. C-34, No. 8, Aug. 1985, pp. 734–740. Goog...
Friedman, E. G., ed.Clock Distribution Networks in VLSI Circuits and Systems, IEEE Press, 1995. Google Scholar Sathyamurthy, H., Sapatnekar, S. S., and Fishburn, J. P. “Speeding up pipelined circuits through a combination of gate sizing and clock skew optimisation,”Proceedings of the ...
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...
Lu et al., “Fast Power- and Slew-Aware Gated Clock Tree Synthesis,” IEEE Transactions on Very Large Scale Integration (VLSI) Systems, Nov. 2012, p. 2094-2103, vol. 20, No. 11. Qian et al., “Modeling the “Effective Capacitance” for the RC Interconnect of CMOS Gates,” IEEE Tra...
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
By clock gating, the switched capacitance of the clock tree is reduced, with acceptable extra cost caused in controller tree. In experimental results it is shown that our approach has good performance on the reduction of both clock skew and power dissipation. 展开 ...
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...