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 44.
46. lappuse
Booleans One of the most important predefined enumeration types in VHDL is the type boolean, defined as type boolean is (false, true); This type is used to represent condition values, which can control execution of a behavioral model.
Booleans One of the most important predefined enumeration types in VHDL is the type boolean, defined as type boolean is (false, true); This type is used to represent condition values, which can control execution of a behavioral model.
47. lappuse
For or and nor, the right-hand operand is not evaluated if the left-hand is true. VHDL-87 The logical operator xnor is not provided in VHDL-87. Bits Since VHDL is used to model digital systems, it is useful to have a data type to ...
For or and nor, the right-hand operand is not evaluated if the left-hand is true. VHDL-87 The logical operator xnor is not provided in VHDL-87. Bits Since VHDL is used to model digital systems, it is useful to have a data type to ...
49. lappuse
We also note that all of the matching operators are defined for operands of type bit, yielding '0' or '1' where an ordinary comparison would yield false or true, respectively. We will return to the way in which these operators are used ...
We also note that all of the matching operators are defined for operands of type bit, yielding '0' or '1' where an ordinary comparison would yield false or true, respectively. We will return to the way in which these operators are used ...
50. lappuse
However, VHDL implicitly converts this to boolean, treating '1' and 'H' as true, and all other values as false. Had we declared the signals to be of type bit, the implicit conversion would also occur, with '1' treated as true and '0' as ...
However, VHDL implicitly converts this to boolean, treating '1' and 'H' as true, and all other values as false. Had we declared the signals to be of type bit, the implicit conversion would also occur, with '1' treated as true and '0' as ...
54. lappuse
... attributes are T'left first (leftmost) value in T T'right last (rightmost) value in T T'low least value in T T'high greatest value in T T'ascending true if T is an ascending range, false otherwise T'image(x) a string representing ...
... attributes are T'left first (leftmost) value in T T'right last (rightmost) value in T T'low least value in T T'high greatest value in T T'ascending true if T is an ascending range, false otherwise T'image(x) a string representing ...
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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 |