Tài liệu Logic Design with VHDL doc

... 1 0 1 10 1 0 10 01 00 11 10 A BC C B A F A F = AB' + BC + AC (c) Network with hazard removed C E B A D F 0 1 0 1 10 1 0 10 01 00 11 10 A BC F = AB' + BC 1 - Hazard (a) Network with 1-hazard B D E F 0 ns 10 ns 20 ns 30 ... inversion Figure 1-7 Conversion to NOR Gates (a) AND-OR network (b) Equivalent NOR-gate network 8 VHDL Processes General form of Process process(sensitivity-...

Ngày tải lên: 12/12/2013, 09:16

... conv_signed(p, b), and conv_std _logic_ vector(p, b).  Packages std _logic_ signed and std _logic_ unsigned of library ieee: Contain functions that allow operations with STD _LOGIC_ VECTOR data to be performed ... any two std _logic signals are connected to the same node, then conflicting logic levels are automatically resolved according to table 3.1.  STD_ULOGIC (STD_ULOGIC_VECTOR): 9-...

Ngày tải lên: 12/12/2013, 11:16

... as the logic synthesis tool, as illustrated in Figure 14-1 . Figure 14-1. Designer's Mind as the Logic Synthesis Tool with varied designer styles for the different blocks in the design ... be redesigned. Thus, redesign was needed to verify what-if scenarios. • Each designer would implement design blocks differently. There was little consistency in design styles. For large...

Ngày tải lên: 24/12/2013, 11:17

... initial is not supported % + - modulus unary plus unary minus Logical ! && || logical negation logical and logical or Relational > < >= <= greater than less ... acceptable to the logic synthesis tool. A list of constructs that are typically accepted by logic synthesis tools is given in Table 14-1 . The capabilities of individual logic synthesis t...

Ngày tải lên: 24/12/2013, 11:17

... user. Logic optimization The logic is now optimized to remove redundant logic. Various technology independent boolean logic optimization techniques are used. This process is called logic optimization. ... 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 pr...

Ngày tải lên: 24/12/2013, 11:17

... 14.6.2 Design Partitioning Design partitioning is another important factor for efficient logic synthesis. The way the designer partitions the design can greatly affect the output of the logic ... ] 14.6 Modeling Tips for Logic Synthesis The Verilog RTL design style used by the designer affects the final gate-level netlist produced by logic synthesis. Logic synthesis...

Ngày tải lên: 24/12/2013, 11:17

... Auckland(config-router)#network 192.168.240.0 Because the Singapore router has to use IGRP to communicate with the Auckland router, you must also configure the Singapore router for IGRP, but only on the ... Advanced Routing v2.0 - Lab 6.7.1 Copyright  2001, Cisco Systems, Inc. 6.7.1 Configuring EIGRP with IGRP Fa0/0 192.168.232.1 /24 S0/1 192.168.240.1 /30 S0/0 192.168.224.2 /3...

Ngày tải lên: 11/12/2013, 15:15

... 6-day week. Today C & A employs many thousands of people. All the stores are attractively designed with good use of space, lighting and plenty of individual changing rooms where… 69…. can try ... Philippines/ spoken/ and/ the/ Singapore/ like/ India/ within/ also/ is/ it/ ,/ etc. (A) It is spoken among non-native speakers also within countries like India, the Philippines and Singap...

Ngày tải lên: 12/12/2013, 18:15

... The Problem with Objects In order to understand Generics, it is worth looking in detail at the problems they are designed to solve, specifically when using the

Ngày tải lên: 15/12/2013, 00:15

... triggered D flip-flop 14.7.6 Design Constraints Timing critical is the only design constraint we used in this design. Typically, design constraints are more elaborate. 14.7.7 Logic Synthesis We synthesize ... we discussed the following aspects of logic synthesis with Verilog HDL: • Logic synthesis is the process of converting a high-level description of the design into...

Ngày tải lên: 24/12/2013, 11:17