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VHDL handbook .Contents Contents LexicaL eLements . 4 Definition 4 Character set .4 Separators .4 Delimiters .4 Identifiers 4 Numerical literals5 Enumeration literals 5 String literals.5 Bit string literals. | hntfoL. n Oo f eCtrOtiicsAB Contents Contents LEXICAL ELEMENTS.4 Definition.4 Character set.4 Separators.4 Delimiters.4 Identifiers.4 LITERALS.5 Numerical literals.5 Enumeration literals.5 String literals.5 Bit string literals.5 The NuLl literal.5 RESERVED WORDS.6 SYNTAX.7 Standards.7 The Backus-Naur-format.7 TYPES AND OBJECTS.8 Predefined types.8 Predefined subtypes.8 Types and subtypes.9 aRray. .10 RECORD.11 ACCESS TYPES pointers .12 Aggregates.13 gRoUP.14 ATTRIBUTE.15 Constant declaration.16 Variable declaration.17 Signal declaration.18 File declaration File handling.19 File reading TEXTIO .20 File writing TEXTIO .21 ALIAS. 22 LIBRARIES.23 LIBRARY and USE.23 DESIGN UNITS.24 PACKAGE DECLARATION.24 PACKAGE BODY.25 ENTITY .26 ARCHITECTURE.27 CONFIGURATION.28 SEQUENTIAL STATEMENTS.29 Wait.29 IF.30 CASE.31 LOOP NEXT and EXIT.32 FUNCTION .33 PROCEDURE.34 Version 3.1 Copyright 1997-2000 HARDI Electronics AB EỉiãSỉy Electronics AB Contents RETURN.35 Variable assignment.36 Signal assignment.37 CONCURRENT AND SEQUENTIAL STATEMENTS.38 ASSERT REPORT.38 Subprogram call.39 CONCURRENT STATEMENTS.40 PROCESS.40 WHEN.41 SELECT.42 BLOCK.43 GENERIC PARAMETERS AND GENERATE.44 GENERIC GENERIC MAP.44 GENERATE.45 COMPONENTS.46 Component declaration.46 Component instantiation.47 Default configuration.48 Configuration specification.49 Configuration declaration.50 PREDEFINED ATTRIBUTES.51 Attributes on types.51 Attributes on arrays.52 Attributes on signals.53 Attributes on named entities.54 IEEE.56 VHDL standards.56 Predefined packages.56 STANDaRd. . . . .56 TEXTIO.57 STD_LOGIC_1164.58 NUMERIC_BIT.60 NUMERIC_STD.61 MATH_REAL.63 MATH_COMPLEX.64 VHDL GUIDE.66 Introduction.66 File notation.66 Predefined packages.66 VHDL syntax.66 Simulation and synthesis.69 VHDL 87 AND VHDL 93 DIFFERENCES.70 INDEX.74 FhARdFi Electronics AB Copyright 1997-2000 HARDI Electronics AB
