search:verilog case casex相關網頁資料

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日期:2024-05-29
Case Statement Formal Definition The case statement is a decision instruction that chooses one statement for execution. The statement chosen is one with a value that matches that of the case statement. Simplified Syntax case (expression) expression ......
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日期:2024-05-27
This page contains Verilog tutorial, Verilog Syntax, Verilog Quick Reference, PLI, modelling memory and FSM, Writing Testbenches in Verilog, Lot of Verilog Examples and Verilog in One Day Tutorial. ... Verilog Behavioral Modeling Part-II Feb-9-2014...
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日期:2024-05-26
SNUG’99 Boston "full_case parallel_case", the Evil Twins Rev 1.1 6 Verilog does not require case statements to be either synthesis or HDL simulation "full," but Verilog case statements can be made full by adding a case default. VHDL requires case statemen...
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日期:2024-05-28
集成電路採購-Verilog HDL語言的條件語句---case語句 ... ase語句是一種多分支選擇語句,if語句只有兩個分支可供選擇,而實際問題中常常需 要用到多分支選擇.Verilog語言提供的case語句直接處理多分支選擇。...
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日期:2024-05-28
見下麵的實例:當ADDRESS = 5`b0x000時,第一句case和第二句case都滿足要求,但只會執行第一條語句,馬上跳出case語句 B = 0;A = 0; casex(ADDRESS) 5`b01xxx: A = 1;//第一句case 5`b00xxx: B = 1;//第二句case...
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日期:2024-05-25
X, Z In IF Conditions And CaseX, CaseZ Logic Levels Within Verilog 0 - logic zero, false condition 1 - logic one, true condition x - unknown logic value z - high impedance An x can be any one of a 1, 0, z or change of state. If a one and a zero are both p...
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日期:2024-05-30
module encoder (value, gray_code); input [7:0] value; output [3:0] gray_code; always @(value) case (value) 8’b00000001 : gray_code = 3’b000; 8’b00000010 : gray_code = 3’b001; 8’b00000100 : gray_code = 3’b011; 8’b00001000 : gray_code = 3’b010; 8 ......
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日期:2024-05-30
case The case statement allows a multipath branch based on comparing the expression with a list of case choices. Statements in the default block executes when none of the case choice comparisons are true (similar to the else block in the if ... else if .....