Hi Everyone,
Today let us start with some basic pre-requisites for Backend Design.
What is Setup time?
It is the time for which the data should be valid before the clock edge, so as to capture the data without any violations.
What is Hold time?
It is the time for which the data should be valid after the clock edge, so as to latch the data without any violations.
What is Fanout?
It is the ability of a logic gate to drive a no. of i/p's of other logic gates.
What is Slew?
The rate of change of Output with respect to time. Some times also called as Output Transition.
What is Latency?
It is the delay between the signal source and the signal network delay.
What is Skew?
It is the difference between the arrival times of a signal from its origin point to different destination points.
What is Global Skew?
It is the difference between the arrival times of the signal at Inter chip level.
What is Local Skew?
It is the difference between the arrival times of the signal at Intra chip level.
What is Launch Clock?
It is the clock wherein the data is launched and will be captured at the next possible flop.
What is Capture Clock?
It is the clock wherein the data is captured, which is coming from the launch flop.
What is On-Chip Variation?
It is minor difference on different parts of the chip within one operating conditions. On-Chip Variation delays vary across a single die due to
(i) Variation in the manufacturing process (P)
(ii) Variation in Voltage (due to IR drops)
(iii) Variation in the temperature (due to local hot spots etc)
What is Common Path Pessimism?
The pessimism caused due to the derating factors applied on the common part of a signal is called Common Path Pessimism.
What is Crosstalk delay?
It is defined as the impact of aggressor net over the victim net causing an additional or subtrational delay in victim net's signal propagation time.
What is Crosstalk noise?
It is defined as the glitch caused in the victim net's signal due to the switching in aggressor net.
What is Crosstalk?
It is the impact of aggressor net over the victim net.
What is Electromigration?
It is the transport of material due to the movement of ions, caused by the momentum transfer between the electrons and the atoms in the metal.
What is Congestion?
Congestion means to overflow or overfill.
What is Placement Congestion?
Congestion caused due to excess accumulation of blocks or cells at one point.
What is Routing Congestion?
A design is said to exhibit Routing Congestion when the demand for the routing resources in some region within the design exceed their supply.
The resource for all the above definition is from the World's best search engine also called Google. Please search this words in http://www.google.com and know more about them.
Thank You
Today let us start with some basic pre-requisites for Backend Design.
What is Setup time?
It is the time for which the data should be valid before the clock edge, so as to capture the data without any violations.
What is Hold time?
It is the time for which the data should be valid after the clock edge, so as to latch the data without any violations.
What is Fanout?
It is the ability of a logic gate to drive a no. of i/p's of other logic gates.
What is Slew?
The rate of change of Output with respect to time. Some times also called as Output Transition.
What is Latency?
It is the delay between the signal source and the signal network delay.
What is Skew?
It is the difference between the arrival times of a signal from its origin point to different destination points.
What is Global Skew?
It is the difference between the arrival times of the signal at Inter chip level.
What is Local Skew?
It is the difference between the arrival times of the signal at Intra chip level.
What is Launch Clock?
It is the clock wherein the data is launched and will be captured at the next possible flop.
What is Capture Clock?
It is the clock wherein the data is captured, which is coming from the launch flop.
What is On-Chip Variation?
It is minor difference on different parts of the chip within one operating conditions. On-Chip Variation delays vary across a single die due to
(i) Variation in the manufacturing process (P)
(ii) Variation in Voltage (due to IR drops)
(iii) Variation in the temperature (due to local hot spots etc)
What is Common Path Pessimism?
The pessimism caused due to the derating factors applied on the common part of a signal is called Common Path Pessimism.
What is Crosstalk delay?
It is defined as the impact of aggressor net over the victim net causing an additional or subtrational delay in victim net's signal propagation time.
What is Crosstalk noise?
It is defined as the glitch caused in the victim net's signal due to the switching in aggressor net.
What is Crosstalk?
It is the impact of aggressor net over the victim net.
What is Electromigration?
It is the transport of material due to the movement of ions, caused by the momentum transfer between the electrons and the atoms in the metal.
What is Congestion?
Congestion means to overflow or overfill.
What is Placement Congestion?
Congestion caused due to excess accumulation of blocks or cells at one point.
What is Routing Congestion?
A design is said to exhibit Routing Congestion when the demand for the routing resources in some region within the design exceed their supply.
The resource for all the above definition is from the World's best search engine also called Google. Please search this words in http://www.google.com and know more about them.
Thank You
No comments:
Post a Comment