โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ s MG63P/64P/65P s
Macrocells for Driving Clock Trees
Oki offers clock-tree drivers that minimize clock skew. The advanced layout software uses dynamic
driver placement and sub-trunk allocation to optimize the clock-tree implementation for a particular cir-
cuit. Features of the clock-tree driver-macrocells include:
โข True RC back annotation of the clock network
โข Automatic fan-out balancing
โข Dynamic sub-trunk allocation
โข Single clock tree driver logic symbol
โข Automatic branch length minimization
โข Dynamic driver placement
โข Up to four clock trunks
Clock
Figure 12. Clock Tree Structure
Oki Semiconductor
11