Microsoft AGB-00001 Spécifications Page 5
- Page / 144
- Table des matières
- MARQUE LIVRES
Noté. / 5. Basé sur avis des utilisateurs
Table of Contents
VHDL Reference Manual v
Selecting a Base Data Type ...................................................... 4-10
Using the Integer Type ....................................................... 4-10
Using Bit and Bit_vector Types............................................. 4-11
Using Std_ulogic and Std_ulogic_vector Types....................... 4-11
Using Std_logic and Std_logic_vector Types .......................... 4-11
Using IEEE 1076.3 Unsigned/Signed Types............................ 4-12
Synthesis of Don't Cares .......................................................... 4-13
Using Device Fitting Attributes .................................................. 4-13
Pinnum Attribute................................................................ 4-14
Property Attribute .............................................................. 4-15
Macrocell Attribute ............................................................. 4-16
Critical Attribute................................................................. 4-17
Enum_encoding Attribute .................................................... 4-18
5. VHDL Datapath Synthesis .......................................................................... 5-1
How Inferencing Works .........................................................5-2
Controlling Datapath Inferencing............................................5-2
Limitations of Inferencing Support..........................................5-3
Examples of How to Infer Datapath Macrofunctions...................5-4
Inferencing Details ...............................................................5-7
Instantiation Details .............................................................5-9
6. How to Manage VHDL Design Hierarchies................................................ 6-1
Managing Large Designs ............................................................6-1
Hierarchy ............................................................................6-1
Components ........................................................................6-2
Components And Synthesis ...................................................6-3
Configurations .....................................................................6-4
Blocks.................................................................................6-5
Using Packages .........................................................................6-5
Package Visibility Rules.........................................................6-6
Design Libraries ...................................................................6-6
Using Packages For Common Declarations ...............................6-7
Using Design Libraries ...............................................................6-8
Library Search Paths.............................................................6-8
The Work Library..................................................................6-8
The Dataio and Generics Libraries ..........................................6-9
Using Schematics With VHDL ......................................................6-9
Using A Top-Level Schematic With VHDL .................................6-9
Using Lower-Level Schematics With VHDL ............................. 6-10
Using Generic Symbols With VHDL ....................................... 6-10
A. VHDL Quick Reference...............................................................................A-1
- VHDL Reference 1
- Table of Contents 3
- 1. Introduction 7
- Introduction 8
- 1-2 VHDL Reference Manual 8
- 2. Language Structure 9
- Architecture 13
- Configuration 13
- Statements 14
- Data Objects 16
- Constants 17
- Data Types 19
- Numeric Types 20
- Other Types 21
- Enumerated Types 21
- Types and Logic Synthesis 23
- Type Conversions 23
- Operators 24
- VHDL Attributes 25
- variable info : my_array; 26
- signal clock : Boolean; 26
- 3. How to Write 27
- Constants and Types 29
- Logical Operators 29
- Relational Operators 31
- Arithmetic Operators 32
- Describing Conditional Logic 34
- If Statement 35
- Case Statement 36
- Describing Replicated Logic 37
- Loop Statements 38
- Generate Statements 39
- Describing Sequential Logic 41
- Wait Statement 44
- Flip-flops 45
- Gated Clocks and Clock Enable 47
- Synchronous Set/Reset 48
- Asynchronous Set/Reset 48
- Asynchronous Reset/Preset 49
- Template State Machine 51
- Feedback Mechanisms 52
- Types of State Machines 54
- Moore Machine 54
- Mealy Machine 56
- 4. How to Control the 59
- Synthesis of Enumerated Types 60
- Enum_encoding attribute 60
- “One hot” Enumeration 62
- Describing Output Enables 63
- Controlling Output Inversion 64
- VHDL Reference Manual 4-7 65
- Controlling Feedback Paths 66
- Selecting a Base Data Type 68
- Synthesis of Don't Cares 71
- Pinnum Attribute 72
- Property Attribute 73
- Macrocell Attribute 74
- Critical Attribute 75
- Enum_encoding Attribute 76
- 5. VHDL Datapath Synthesis 77
- How Inferencing Works 78
- Inferencing Details 83
- Instantiation Details 85
- 6. How to Manage VHDL 91
- Components 92
- Components And Synthesis 93
- Configurations 94
- Using Packages 95
- Package Visibility Rules 96
- Design Libraries 96
- Using Design Libraries 98
- Using Schematics With VHDL 99
- 6-12 VHDL Reference Manual 102
- A. VHDL Quick Reference 103
- VHDL Syntax Basics 104
- Sequential Statements 105
- Subprograms 106
- Concurrent Statements 107
- VHDL Quick Reference 108
- A-6 VHDL Reference Manual 108
- Library Units 109
- Attributes 110
- B. Limitations 111
- Ignored Constructs 112
- C. VHDL for the ABEL-HDL 113
- Pin and Node Numbers 114
- Combinational Logic 115
- Registers 116
- Avoiding Unwanted Latches 119
- State Machines 121
- Design I/O 124
- Registered Logic 124
- C-14 VHDL Reference Manual 126
- D. ABEL-HDL Language 127
- Dot extensions 128
- VHDL Reference Manual D-7 133
- VHDL Reference Manual D-9 135
- D-10 VHDL Reference Manual 136
- Index-8 VHDL Reference Manual 144
Produits connexes et manuels pour Claviers Microsoft AGB-00001
(29 pages)
(247 pages)© 2020, manymanuals.fr. Tous droits réservés | 0.423 s |
Manymanuals.com
Manymanuals.de
Manymanuals.fr
Manymanuals.it
Manymanuals.pl
Manymanuals.cz
Manymanuals.es
Manymanuals-pt.com
Commentaires sur ces manuels