Tài liệu Logic Synthesis With Verilog HDL part 2 doc
Tài liệu Logic Synthesis With Verilog HDL part 2 doc
... because synthesis tools
can infer unnecessary logic based on the variable definition.
14.3 .2 Verilog Operators
Almost all operators in Verilog are allowed for logic synthesis. Table 14 -2
is ... appear. If you rely on operator precedence, logic synthesis tools might
produce an undesirable logic structure.
Table 14 -2. Verilog HDL Operators for Logic Synthesis...
Tài liệu Logic Synthesis With Verilog HDL part 1 docx
... terms of HDLs. Verilog HDL has
become one of the popular HDLs for the writing of high-level descriptions. Figure 14 -2
illustrates the process.
Figure 14 -2. Basic Computer-Aided Logic Synthesis ... mind was used as the
logic synthesis tool, as illustrated in Figure 14-1
.
Figure 14-1. Designer's Mind as the Logic Synthesis Tool
The advent of computer-aided logic...
Tài liệu Logic Synthesis With Verilog HDL part 3 doc
... .in0(B [2] ), .in1(n 62) , .out(n45) );
VNAND U21 ( .in0(n61), .in1(n45), .out(n63) );
VNAND U 22 ( .in0(n63), .in1(n 42) , .out(n41) );
VAND U10 ( .in0(n55), .in1(n 52) , .out(n47) );
VOR U23 ( ... timing
Logic synthesis
The RTL description of the magnitude comparator is read by the logic synthesis tool. The
design constraints and technology library for abc_100 are provide...
Tài liệu Logic Synthesis With Verilog HDL part 4 doc
...
mux2_1L8 m1(out[15:7], a[15:7], b[ 15:7], select); //bits 15 through 7
mux2_1L8 m2(out [23 :16], a [23 :16], b [23 :16], select); //bits 23 through 16
mux2_1L8 m3(out[31 :24 ], a[31 :24 ], b[31 :24 ], ... out) = (0 .26 0604:0.513000:0.95 520 6, 0 .25 5 524 :0.503000:0.936586);
(in1 => out) = (0 .26 0604:0.513000:0.95 520 6, 0 .25 5 524 :0.503000:0.936586);
endspecify
//instantiate...
Tài liệu Logic Synthesis With Verilog HDL part 5 pptx
... wire \PRES_STATE[1] , n289, n300, n301, n3 02, \PRES_STATE243[1] ,
n303, n304, \PRES_STATE[0] , n290, n291, n2 92, n293, n294,
n295, n296, n297, n298, n299, \PRES_STATE243[0] ;
PDFF \PRES_STATE_reg[1] ... .out(n295) );
VAND U113 ( .in0(n295), .in1(n2 92) , .out(n294) );
VNOT U 126 ( .in(coin[1]), .out(n293) );
VNAND U1 12 ( .in0(coin[0]), .in1(n293), .out(n2 92) );
VNAND U 125...
Tài liệu Overview Of Degital Design With Verilog HDL part 2 docx
... though HDLs were popular for logic verification, designers had to manually
translate the HDL- based design into a schematic circuit with interconnections between
gates. The advent of logic synthesis ... HDL and VHDL became popular.
Verilog HDL originated in 1983 at Gateway Design Automation. Later, VHDL was
developed under contract from DARPA. Both Verilog
®
and VHDL simu...
Tài liệu Overview Of Degital Design With Verilog HDL part 1 doc
... 1 1
10 2 2 2
11 3 3 3
100 4 4 4
101 5 5 5
110 6 6 6
111 7 7 7
1000 10 8 8
1001 11 9 9
1010 12 A 10
1011 13 B 11
1100 14 C 12
1101 15 D 13
1110 16 E 14
1111 17 F 15
10000 20 10 16 ... Engineering
(CAE) tools refers to tools that are used for front-end processes such HDL simulation,
logic synthesis, and timing analysis. Designers used the terms CAD and CAE
interchan...
Tài liệu Overview Of Degital Design With Verilog HDL part 3 docx
... 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 hardware ... Most popular logic synthesis tools support Verilog HDL. This makes it the
language of choice for designers.
• All fabrication vendors provide Verilog HDL libraries...
