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ECE 564 (001) Fall 2025 ASIC and FPGA Design with Verilog
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Is there potential for a hold violation in the schematic above?
The purpose of this question is to give you some practice on timing calculations, as discussed in class.Consider the circuit shown below.
Answer the following questions, using the following data:
- ·Clock skew = 750 ps
- ·T_clock_Q = (300 : 450 : 950) ps in (min:typ:max)
- ·AND delay = (70 : 120 : 210) ps
- ·OR delay = (50 : 110 : 200) ps
- ·Mux delay from D0 or D1 = (40 : 90 : 180) ps
- ·Mux delay from S = (30 : 80 : 170) ps
- ·T_setup = (100 : 200 : 300) ps
- ·T_hold = (200 : 300 : 400) ps
What is the fastest possible clock that allows worst-case circuits to work correctly without setup violations? Give your answer as a clock period ps. Do not specify the units. E.g. If the answer is 123 ps, just type in 123
Which design style would you use for a battery powered sensor used for oil field surveys? Power consumption is important but performance is low and the volume is very low.
What is a hold violation?
If you have a design with one (critical) path much longer than the others which are the generally accepted ways to fix this. Choose a combination of the following (or just one).A. Tell synthesis that this path can take two clock cycles to complete.B. Insert a pipeline register.C. Redesign the logic so that it is more "parallel" and less "serial"(Note, this question was also addressed in the revision notes)
What is the impact main impact of Moore's Law on the Semiconductor Industry.
What is a setup violation?
How is a hold violation fixed?
What is the main factor that determines clock skew?
What is the second most important reason that design costs are increasing with each ITRS generation?