Tài liệu Hierarchical Modeling Concepts part 2 ppt
Tài liệu Hierarchical Modeling Concepts part 2 ppt
... 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 ...
T_FF tff2(q [2] ,q[1], reset);
T_FF tff3(q[3],q [2] , reset);
endmodule
In the above module, four instances of the module T_FF (T-flipflop) are used. Therefore,
we must now define (Ex...
Tài liệu Hierarchical Modeling Concepts part 1 pdf
... cells.
To illustrate these hierarchical modeling concepts, let us consider the design of a negative
edge-triggered 4-bit ripple carry counter described in Section 2. 2
, 4-bit Ripple Carry
Counter. ... higher-level blocks until we build the top-level block in the design. Figure 2- 2
shows the bottom-up design process.
Figure 2- 2. Bottom-up Design Methodology
Typically, a com...
Tài liệu Useful Modeling Techniques part 2 pptx
...
//Example 2
module top;
bus_master b1(); //instantiate module unconditionally
'ifdef ADD_B2
bus_master b2(); //b2 is instantiated conditionally if text macro
//ADD_B2 is defined ... specify that the particular portion of the code be compiled only
if a certain flag is set. This is called conditional compilation.
A designer might also want to execute certain parts of the Veri...
Tài liệu Lesson 19: Negotiating (part 2) ppt
...
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...
Tài liệu Insight into IELTS part 2 pptx
... and then drops as you come to the end 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 ... your voice should rise and fall.
Read the extracts out loud to your partner, as if you were giving a talk or a lecture,
paying particular attention to the intonation patterns needed to...
Tài liệu Modules and Ports part 2 pptx
... Example 4 -2
.
Example 4 -2 List of Ports
module fulladd4(sum, c_out, a, b, c_in); //Module with a list of ports
module Top; // No list of ports, top-level module in simulation
4 .2. 2 Port Declaration ... environment as long as the
interface is not modified. Ports are also referred to as terminals.
4 .2. 1 List of Ports
A module definition contains an optional list of ports. If the...
Tài liệu Formal Syntax Definition part 2 ppt
...
| n_input_gatetype [drive_strength] [delay2]
n_input_gate_instance { , n_input_gate_instance } ;
| n_output_gatetype [drive_strength] [delay2]
n_output_gate_instance { , n_output_gate_instance ... [delay2]
n_output_gate_instance { , n_output_gate_instance } ;
| pass_en_switchtype [delay2]
pass_enable_switch_instance { , pass_enable_switch_instance } ;
| pass_switchtype
pas...
Tài liệu Timing and Delay part 2 ppt
... Team LiB ]
10 .2 Path Delay Modeling
In this section, we discuss various aspects of path delay modeling. In this section, the
terms pin and port are used interchangeably.
10 .2. 1 Specify Blocks ...
//a[31:0] is a 32- bit vector and out[15:0] is a 16-bit vector
//Delay of 9 between each bit of a and every bit of out
specify
( a *> out) = 9; // you would need 32 X 16 = 3 5...
