Verilog Programming part 12 pps
Làm Webmaster part 12 pps
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Ngày tải lên: 01/07/2014, 11:20
Verilog Programming part 7 doc
... discussed in the further chapters. • Verilog is similar in syntax to the C programming language . Hardware designers with previous C programming experience will find Verilog easy to learn. • Lexical ... internals of the module in greater detail. A module in Verilog consists of distinct parts, as shown in Figure 4-1 . Figure 4-1. Components of a Verilog Module A module de...
Ngày tải lên: 01/07/2014, 21:20
Verilog Programming part 8 ppt
... connections. However, a warning is typically issued that the widths do not match. Unconnected ports Verilog allows ports to remain unconnected. For example, certain output ports might be simply for ... There are rules governing port connections when modules are instantiated within other modules. The Verilog simulator complains if any port connection rules are violated. These rules ar...
Ngày tải lên: 01/07/2014, 21:20
Verilog Programming part 9 potx
... 4'd5; #5 A = 4'd9; B = 4'd9; fulladd (1-bit full adder). Figure 5-7. 4-bit Ripple Carry Full Adder This structure can be translated to Verilog as shown in Example 5-8 . ... Adder This logic diagram for the 1-bit full adder is converted to a Verilog description, shown in Example 5-7 . Example 5-7 Verilog Description for 1-bit Full Adder // Define a 1-bit f...
Ngày tải lên: 01/07/2014, 21:20
Verilog Programming part 10 pdf
... such instances, Verilog HDL allows an array of primitive instances to be defined. [1] Example 5-4 shows an example of an array of instances. [1] Refer to the IEEE Standard Verilog Hardware ... Diagram for Multiplexer The logic diagram has a one-to-one correspondence with the Verilog description. The Verilog description for the multiplexer is shown in Example 5-5 . Two interm...
Ngày tải lên: 01/07/2014, 21:20
Verilog Programming part 1 ppt
... LiB ] [ Team LiB ] 1. 5 Popularity of Verilog HDL Verilog HDL has evolved as a standard hardware description language. Verilog HDL offers many useful features • Verilog HDL is a general-purpose ... interact with the internal data structures of Verilog. Designers can customize a Verilog HDL simulator to their needs with the PLI. [ Team LiB ] 1. 1 Evolution of Computer...
Ngày tải lên: 01/07/2014, 21:20
Verilog Programming part 2 docx
... counter described in Section 2. 2 , 4-bit Ripple Carry Counter. [ Team LiB ] [ Team LiB ] 2. 2 4-bit Ripple Carry Counter The ripple carry counter shown in Figure 2- 3 is made up of negative ... 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 combinat...
Ngày tải lên: 01/07/2014, 21:20
Verilog Programming part 3 pptx
... First, we write the Verilog description of the top-level design block (Example 2 -3 ), which is the ripple carry counter (see Section 2.2 , 4-bit Ripple Carry Counter). Example 2 -3 Ripple Carry ... output [3: 0] q; input clk, reset; //4 instances of the module T_FF are created. T_FF tff0(q[0],clk, reset); T_FF tff1(q[1],q[0], reset); T_FF tff2(q[2],q[1], reset); T_FF tff3(q [...
Ngày tải lên: 01/07/2014, 21:20
Verilog Programming part 5 ppt
... port_id is 5 bits wide integer matrix[4:0][0: 255 ]; // Two dimensional array of integers reg [63:0] array_4d [ 15: 0][7:0][7:0][ 255 :0]; //Four dimensional array wire [7:0] w_array2 [5: 0]; // ... value) of port_id array. matrix[1][0] = 3 355 9; // Set value of element indexed by [1][0] to 3 355 9 array_4d[0][0][0][0][ 15: 0] = 0; //Clear bits 15: 0 of the register //access...
Ngày tải lên: 01/07/2014, 21:20
Verilog Programming part 6 potx
... allows you to include entire contents of a Verilog source file in another Verilog file during compilation. This works similarly to the #include in the C programming language. This directive is ... Example 3-3 $display Task //Display the string in quotes $display("Hello Verilog World"); Hello Verilog World //Display value of current simulation time 230 $display($...
Ngày tải lên: 01/07/2014, 21:20
Verilog Programming part 12 pps
... invoking the Verilog- XL simulator with the command-line options are shown below. Assume that the module with delays is declared in the file test.v. //invoke simulation with maximum delay > verilog ... +maxdelays //invoke simulation with minimum delay > verilog test.v +mindelays //invoke simulation with typical delay > verilog test.v +typdelays 5.2.3 Delay Example...
Ngày tải lên: 01/07/2014, 21:20
Verilog Programming part 14 ppsx
... now important to discuss operator precedence. If no parentheses are used to separate parts of expressions, Verilog enforces the following precedence. Operators listed in Table 6-4 are in order ... expression takes a value x. These operators function exactly as the corresponding operators in the C programming language. // A = 4, B = 3 // X = 4'b1010, Y = 4'b1101, Z = 4&apo...
Ngày tải lên: 01/07/2014, 21:20
Verilog Programming part 18 ppsx
... 7.3 Timing Controls Various behavioral timing control constructs are available in Verilog. In Verilog, if there are no timing control statements, the simulation time does not advance. ... of a signal value or the triggering of an event. The symbol @ provided edge-sensitive control. Verilog also allows level-sensitive timing control, that is, the ability to wait for a certain ... eval...
Ngày tải lên: 01/07/2014, 21:20
Software Engineering For Students: A Programming Approach Part 12 pps
... method calls. One way of handling the error is to create an additional parameter associated with each method call. This approach can become very unwieldy as methods receive and merely pass on parameters ... abstraction. As an analogy compare the problems of understanding a plate of spaghetti as com- pared with a plate of lasagna. In order to understand the spaghetti, we have to under- s...
Ngày tải lên: 03/07/2014, 01:20
A Complete Guide to Programming in C++ part 12 ppsx
... 2 a. How are operands and operators in the following expression associated? x = –4 * i++ – 6 % 4; Insert parentheses to form equivalent expressions. b. What value will be assigned in part a to ... goto, continue, and break. chapter 6 exercises 92 ■ CHAPTER 5 OPERATORS FOR FUNDAMENTAL TYPES // Evaluating operands in logical expressions. #include <iostream> using namespace...
Ngày tải lên: 06/07/2014, 17:21