What is routing? Creating physical connections to all the logical connections present in the design with the help of metal layers is known as routing. What are the types of routing? PG Route: Power/Ground physical routing is completed during floorplan. Secondary…
What are the CTS inputs? Placement DB CTS Spec File What does the CTS Spec File contain? 1. Inverters or buffers to be defined which will be used to balance the clock tree. 2. CTS Exceptions (End points of clock…
What is placement? Placing of standard cells in the design is known as placement. What are the pre placement sanity checks? Floating pins in netlist Unconstrained Pins Undriven Input Ports Unloaded Output ports Pin direction Mismatch Timing Check Physical constrains…
What are the inputs at the floorplan stage? Synthesized Netlist Timing Library (LIB) Physical Library (LEF- Library Exchange Format) Design Exchange Format (DEF) Unified Power Format (UPF) Standard Design Constraint (SDC) What are the two types of lef and what…