Tài liệu Timing and Delay part 3 doc

... the flow of delay back annotation. Figure 10-7. Delay Back-Annotation A standard format called the Standard Delay Format (SDF) is popularly used for back-annotation. Details of delay back-annotation ... as geometry and IC fabrication process. 5. The post-layout delay values are back-annotated to modify the delay estimates for the gate-level netlist. Timing simulation or...

Ngày tải lên: 15/12/2013, 03:15

... 10-2 Lumped Delay //Lumped Delay Model module M (out, a, b, c, d); output out; input a, b, c, d; wire e, f; and a1(e, a, b); and a2(f, c, d); and #11 a3(out, e, f);/ /delay only on ... endmodule Lumped delays models are easy to model compared with distributed delays. 10.1 .3 Pin-to-Pin Delays Another method of delay specification for a module is pin-to-pin timing....

Ngày tải lên: 15/12/2013, 03:15

... endspecify and a1(e, a, b); and a2(f, c, d); and a3(out, e, f); endmodule The full connection is particularly useful for specifying a delay between each bit of an input vector and every ... earlier, min, typical, and max values can be typically invoked with the runtime option +mindelays, +typdelays, or +maxdelays on the Verilog command line. Default is the typical delay...

Ngày tải lên: 15/12/2013, 03:15

... February, up to 32 9,000 people became unemployed due to the shutdowns of companies and plants. (A)out (B) of (C)besides (D) about 111. Please make sure to read over these terms and they are ... strict quality testing standard. (A)ingredients (B) patterns (C)pieces (D) materials 1 23. Many teachers of young children are _______ about the right time to begin handwriting...

Ngày tải lên: 13/12/2013, 18:15

... goes back thousands and in some cases millions of years. Sand covers not just sea-shores, but also ocean beds, deserts and mountains. It is one of the most common substances on earth, And it is a ... determine the shape of a piece of sand? 4 How was the beach on Kamoama Island created? 5 Where, according to the text, can fine sandy beaches be found? 6 Who argues that sand is more effici...

Ngày tải lên: 13/12/2013, 21:15

... means “standing still” (both words stationary and standing contain an “a”) while stationery is paper used for writing letters (both words stationery and letter contain “er”). Desert and dessert ... company. He sold the games himself, and the craze spread. Seeing the success of the game, Parker Brothers changed its mind and purchased the game for manufacturing and distribution. In...

Ngày tải lên: 14/12/2013, 13:15

... module are q, qbar, set, and reset. The root module instantiates m1, which is a module of type SR_latch. The module m1 instantiates nand gates n1 and n2. Q, Qbar, S, and R are port signals in ... modules and concentrated on how modules are defined and instantiated. In this section, we analyze the internals of the module in greater detail. A module in Verilog consists of distin...

Ngày tải lên: 15/12/2013, 03:15

... x i )=σ 2 yi +b 2 σ 2 xi ≡1/w i (15 .3. 3) The sum of the square of N random variables, each normalized by its variance, is thus χ 2 -distributed. We want to minimize equation (15 .3. 2) with respect to a and b. Unfortunately, ... smallest χ 2 between each data point and the line with slope b, and also as the variance of the linear combination y i − a − bx i of two random variables x i...

Ngày tải lên: 15/12/2013, 04:15

... as 1/N 3 whichisclosedontherightandopenontheleft:  x N x 1 f(x)dx = h  23 12 f 2 + 7 12 f 3 + f 4 + f 5 + ···+f N−2 + 13 12 f N −1 + 5 12 f N  + O  1 N 3  (4.1.20) CITED REFERENCES AND FURTHER ... see that (4.2.4) is exactly Simpson’s rule (4.1. 13) , alternating 2 /3 s, 4 /3 s, and all. This is the preferred method for evaluating that rule, and we can write it as a routi...

Ngày tải lên: 15/12/2013, 04:15

Ngày tải lên: 15/12/2013, 09:15