VHDL-2008: Just the New StuffElsevier, 26 nov 2007 - 256 pagina's VHDL-2008: Just the New Stuff, as its title says, introduces the new features added to the latest revision of the IEEE standard for the VHDL hardware description language. Written by the Chair and Technical Editor of the IEEE working group, the book is an authoritative guide to how the new features work and how to use them to improve design productivity. It will be invaluable for early adopters of the new language version, for tool implementers, and for those just curious about where VHDL is headed. * First in the market describing the new features of VHDL 2008;* Just the new features, so existing users and implementers can focus on what's new; * Helps readers to learn the new features soon, rather than waiting for new editions of complete VHDL reference books. * Authoritative, written by experts in the area; * Tutorial style, making it more accessible than the VHDL Standard Language Reference Manual. |
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Pagina 1
... instantiate an entity or component, we supply values for the generic constants for that instance. The generic constants in the generic list are called the formal generics, and the values we supply in the generic map are called the ...
... instantiate an entity or component, we supply values for the generic constants for that instance. The generic constants in the generic list are called the formal generics, and the values we supply in the generic map are called the ...
Pagina 2
... instantiate the entity to get a multiplexer for bit signals as follows: signal sel_bit, a bit, b_bit, z_bit : bit; bit_mux : entity work. generic_mux2 (rtl) generic map ( data type => bit ) port map ( sel => sel_bit, a => a_bit, b => b ...
... instantiate the entity to get a multiplexer for bit signals as follows: signal sel_bit, a bit, b_bit, z_bit : bit; bit_mux : entity work. generic_mux2 (rtl) generic map ( data type => bit ) port map ( sel => sel_bit, a => a_bit, b => b ...
Pagina 3
... instantiation. If the formal generic type is not used in any way requiring it to be constrained, then the actual type in an instance need not be constrained. For both variables and Signals, the default initial value is determined using ...
... instantiation. If the formal generic type is not used in any way requiring it to be constrained, then the actual type in an instance need not be constrained. For both variables and Signals, the default initial value is determined using ...
Pagina 4
... instantiated, and must be of the type specified as the actual generic type. For example, we might instantiate the entity e within a larger design as follows: my_e : entity work. e(a) generic map ( T => std ulogic_vector (3 downto 0) ...
... instantiated, and must be of the type specified as the actual generic type. For example, we might instantiate the entity e within a larger design as follows: my_e : entity work. e(a) generic map ( T => std ulogic_vector (3 downto 0) ...
Pagina 5
... instantiate them in a design as follows: type traffic_light_color is (red, yellow, green); cycle_lights : entity work. generic_counter (rt1) generic map ( count_type => traffic light_color, reset_value => red ) port map ( . . . ); The ...
... instantiate them in a design as follows: type traffic_light_color is (red, yellow, green); cycle_lights : entity work. generic_counter (rt1) generic map ( count_type => traffic light_color, reset_value => red ) port map ( . . . ); The ...
Inhoudsopgave
| 1 | |
Chapter 2 Other Major Features | 53 |
Chapter 3 Type System Changes | 103 |
Chapter 4 New and Changed Operations | 127 |
Chapter 5 New and Changed Statements | 143 |
Chapter 6 Modeling Enhancements | 159 |
Chapter 7 Improved IO | 169 |
Chapter 8 Standard Packages | 179 |
Chapter 9 Miscellaneous Changes | 207 |
Chapter 10 Whats Next | 229 |
Index | 237 |
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Veelvoorkomende woorden en zinsdelen
Accellera address_type alias array type attribute begin bit vector boolean cipher component configuration constant context declaration conversion functions decryption denorm design unit digest digital envelope digital signature directive downto earlier versions element subtype element type encoded encryption envelope encryption tool end entity end package end record entity and architecture example expression external name fixed-point float floating-point formal generic type fully constrained hash function hexadecimal identifier IEEE index range inout instance instantiate integer IP provider numeric_bit numeric_std NumericarrayType object octal operand operations Overflow round overloaded package body package defines Param parameter pathname port map predefined protect protect protect protected type pure function radix point result session key sfixed shared variable signed specify sta_logic statement std logic vector std ulogic vector string subprogram testbench textio tion type conversion ufixed unconstrained uninstantiated package unsigned versions of VHDL VHPI write Xmap