The Student's Guide to VHDLThe Student's Guide to VHDL is a condensed edition of The Designer's Guide to VHDL, the most widely used textbook on VHDL for digital system modeling. The Student's Guide is targeted as a supplemental reference book for computer organization and digital design courses. Since publication of the first edition of The Student's Guide, the IEEE VHDL and related standards have been revised. The Designer's Guide has been revised to reflect the changes, so it is appropriate that The Student's Guide also be revised. In The Student's Guide to VHDL, 2nd Edition, we have included a design case study illustrating an FPGA-based design flow. The aim is to show how VHDL modeling fits into a design flow, starting from high-level design and proceeding through detailed design and verification, synthesis, FPGA place and route, and final timing verification. Inclusion of the case study helps to better serve the educational market. Currently, most college courses do not formally address the details of design flow. Students may be given informal guidance on how to proceed with lab projects. In many cases, it is left to students to work it out for themselves. The case study in The Student's Guide provides a reference design flow that can be adapted to a variety of lab projects. |
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1.5. rezultāts no 80.
ix. lappuse
... 5.2 Behavioral Descriptions 141 5.2.1 Signal Assignment 141 Conditional Signal Assignments 144 Selected Signal Assignments 145 5.2.2 Signal Attributes 147 5.2.3 Wait Statements 149 5.2.4 Delta Delays 153 5.2.5 Transport and Inertial ...
... 5.2 Behavioral Descriptions 141 5.2.1 Signal Assignment 141 Conditional Signal Assignments 144 Selected Signal Assignments 145 5.2.2 Signal Attributes 147 5.2.3 Wait Statements 149 5.2.4 Delta Delays 153 5.2.5 Transport and Inertial ...
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... corresponding to this input; end loop; wait for 10 ms; end loop; At this top level of abstraction, the structure of a system may be described as an interconnection of such components as processors, memories and input/output devices.
... corresponding to this input; end loop; wait for 10 ms; end loop; At this top level of abstraction, the structure of a system may be described as an interconnection of such components as processors, memories and input/output devices.
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For example, an RTL model for the processor in our example controller might include the following description: MAR ← PC, memory_read ← 1 PC ← PC + 1 wait until ready = 1 IR ← memory_data memory_read ← 0 This section of the model ...
For example, an RTL model for the processor in our example controller might include the following description: MAR ← PC, memory_read ← 1 PC ← PC + 1 wait until ready = 1 IR ← memory_data memory_read ← 0 This section of the model ...
9. lappuse
The first statement is a wait statement that causes the process to suspend, that is, to become inactive. It stays suspended until one of the signals to which it is sensitive changes value. In this case, the process is sensitive only to ...
The first statement is a wait statement that causes the process to suspend, that is, to become inactive. It stays suspended until one of the signals to which it is sensitive changes value. In this case, the process is sensitive only to ...
11. lappuse
For the flipflops, the entity and architecture are entity d_ff is port ( d, clk : in bit; q : out bit ); end d_ff; architecture basic of d_ff is begin ff_behavior : process is begin wait until clk; q <= d after 2 ns; ...
For the flipflops, the entity and architecture are entity d_ff is port ( d, clk : in bit; q : out bit ); end d_ff; architecture basic of d_ff is begin ff_behavior : process is begin wait until clk; q <= d after 2 ns; ...
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Saturs
| 1 | |
| 31 | |
| 65 | |
Chapter 4 Composite Data Types and Operations | 95 |
Chapter 5 Basic Modeling Constructs | 135 |
Chapter 6 Subprograms | 201 |
Chapter 7 Packages and Use Clauses | 239 |
Chapter 8 Resolved Signals | 261 |
Chapter 12 Components and Configurations | 335 |
Chapter 13 Generate Statements | 359 |
Chapter 14 Design for Synthesis | 375 |
System Design Using the Gumnut Core 413 | 413 |
Appendix A Standard Packages | 437 |
Appendix B VHDL Syntax | 461 |
Appendix C Answers to Exercises | 479 |
References | 497 |
Chapter 9 Predefined and Standard Packages | 287 |
Chapter 10 Aliases | 315 |
Chapter 11 Generic Constants | 325 |
Index | 499 |
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actual alias allows alternative applied architecture body array assertion association attribute begin behavioral bit_vector boolean called changes Chapter character choices clause clock complex component condition configuration connected constant constrained contains conversion corresponding count defined delay described determine digit downto driver elements end process entity entity declaration example executed expression false function function function identifier implementation index range indication initial inout input instance instantiation instruction integer label literal logic loop memory natural Note object operand operations output package parameter port map predefined procedure range record refer represent reset resolved result selected shown signal assignment signed simulation specify standard statement std_ulogic string structural subtype syntax rule synthesis tool true unit unsigned variable vector versions VHDL wait width write
Bibliogrāfiskā informācija
| Nosaukums | The Student's Guide to VHDL |
| Autors | Peter J. Ashenden |
| Izdevums: | 2, pārstrādāts |
| Izdevējs | Elsevier, 2008 |
| ISBN | 0080948553, 9780080948553 |
| Apjoms | 528 lappuses |
| Eksportēt avotu | BiBTeX EndNote RefMan |