Tài liệu Timing and Delay part 2 ppt

... if ({c,d} != 2& apos;b01) (c,d *> out) = 13; endspecify and a1(e, a, b); and a2(f, c, d); and a3(out, e, f); endmodule Rise, fall, and turn-off delays Pin-to-pin timing can also ... 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 vec...

Ngày tải lên: 15/12/2013, 03:15

... b, and c_in and produces an output on ports sum and c_out. Thus, module fulladd4 performs an addition for its environment. The module Top is a top-level module in the simulation and does not ... does not have a list of ports. The module names and port lists for both module declarations in Verilog are as shown in Example 4 -2 . Example 4 -2 List of Ports module fulladd4(sum,...

Ngày tải lên: 15/12/2013, 03:15

... a lumped delay is shown in Figure 10 -2 and Example 10 -2. Figure 10 -2. Lumped Delay The above example is a modification of Figure 10-1 . In this example, we computed the maximum delay from ... wire e, f; and a1(e, a, b); and a2(f, c, d); and #11 a3(out, e, f);/ /delay only on the output gate endmodule Lumped delays models are easy to model compared with distributed...

Ngày tải lên: 15/12/2013, 03:15

... gate delays. In this section, we describe how to set up timing checks to see if any timing constraints are violated during simulation. Timing verification is particularly important for timing ... do timing checks in Verilog. There are many timing check system tasks available in Verilog. We will discuss the three most common timing checks [1] tasks: $setup, $hold, and $widt...

Ngày tải lên: 15/12/2013, 03:15

... Lesson 19: Negotiating (part 2) Bài 19: Thương lượng (phần 2) Trần Hạnh và toàn Ban Tiếng Việt Đài Úc Châu xin thân chào bạn. Mời bạn theo ... nhìều mà còn nói được nhiều câu tương tự đến như thế. Lesson 19: Negotiating (part 2) Bài 19: Thương lượng (phần 2) Trong bài 19 này, bạn sẽ học hỏi nghệ thuật ăn nói khi cần phải mặc cả hay ... Then we can agree, Agree to pay. TH m...

Ngày tải lên: 11/12/2013, 16:16

Ngày tải lên: 13/12/2013, 20:15

... of the whole number. 5849 3714 *6 12 9983 4 721 *0 122 3 46 027 8 *33 76 49 52 98 *04 12 6136 12 Speakers normally use an upward intonation if they have more to add and let their voice drop when they ... aware of stress, rhythm and intonation How do intonation and word stress help us to understand? Pre-listening Public speakers and lecturers make use of stress, rhythm and intona...

Ngày tải lên: 13/12/2013, 21:15

... n_input_gate_instance } ; | n_output_gatetype [drive_strength] [delay2 ] n_output_gate_instance { , n_output_gate_instance } ; | pass_en_switchtype [delay2 ] pass_enable_switch_instance { , pass_enable_switch_instance ... enable_gate_instance } ; | mos_switchtype [delay3 ] mos_switch_instance { , mos_switch_instance } ; | n_input_gatetype [drive_strength] [delay2 ] n_input_g...

Ngày tải lên: 15/12/2013, 03:15

Ngày tải lên: 23/12/2013, 12:16

... reset is asserted from 0 to 20 and from 20 0 to 22 0. initial begin reset = 1'b1; #15 reset = 1'b0; #180 reset = 1'b1; #10 reset = 1'b0; #20 $finish; //terminate the ... to 15 and then goes up again from time 195 to 20 5. Output q counts from 0 to 15. Figure 2- 8. Stimulus and Output Waveforms We are now ready to write the stimulus block (see Ex...

Ngày tải lên: 24/12/2013, 11:17