IEEE 1666.1™-2016：SystemC模拟混合信号扩展语言参考手册

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"IEEE Standard for Standard SystemC® Analog Mixed-Signal Extensions Language Reference Manual" 这篇文档是IEEE（电气和电子工程师协会）发布的2016版SystemC标准，专门针对模拟和混合信号建模的扩展规范。SystemC是一种高级的硬件描述语言，主要应用于系统级设计、验证和软件硬件协同设计。在2016年的版本中，它增加了对模拟和混合信号系统设计的支持，从而扩展了其应用领域。 SystemC AMS（Analog Mixed-Signal）是该标准的一个重要组成部分，它提供了一套C++类库，用于模拟和混合信号系统的建模和仿真。这一扩展使得SystemC能够处理不仅包括数字逻辑，还包含连续时间模拟行为的复杂设计问题。这对于现代集成电路（IC）设计，尤其是那些融合数字和模拟功能的系统芯片（SoC）来说，是一个强大的工具。该标准的语言参考手册详细阐述了如何使用这些扩展来构建和仿真包含模拟和数字组件的模型。这可能包括定义模拟电路的行为，如运放、滤波器和其他模拟模块，以及它们与数字逻辑之间的交互。此外，手册可能还涵盖了数据类型、运算符、类库函数和接口，这些都是进行有效和准确的混合信号建模所必需的。设计自动化标准委员会是IEEE计算机学会下属的一个组织，负责监督和批准这样的标准，确保其质量和适用性。此标准的发布和批准日期为2016年1月29日，由IEEE-SA（IEEE标准协会）标准董事会批准。对于华中科技大学的用户，这份文档可能被用作教学或研究资源，提供了深入理解SystemC在模拟和混合信号设计中的应用的详细指导。然而，从下载信息来看，使用该文件存在一定的限制，可能需要遵循IEEE的版权规定和使用条款。 "IEEE Std 1666.1™-2016"是SystemC用户和开发者的重要参考资料，特别对那些在模拟和混合信号设计领域工作的人来说，它提供了关键的建模和仿真工具，促进了更高效的设计流程和更好的系统性能。

IEEE Std 1666.1-2016

IEEE Standard for Standard SystemC

Analog/Mixed-Signal Extensions Language Reference Manual

1.3 Subsets

It is anticipated that tool vendors will create implementations that support only a subset of this standard or

that impose further constraints on the use of this standard. Such implementations are not fully compliant with

this standard but may nevertheless claim partial compliance with this standard and may use the name SystemC

AMS extensions.

1.4 Relationship with C++

This standard is closely related to the C++ programming language and adheres to the terminology used in

ISO/IEC 14882:2003. This standard does not seek to restrict the usage of the C++ programming language; an

application using the SystemC AMS extensions may use any of the facilities provided by C++, which in turn

may use any of the facilities provided by C. However, where the facilities provided by this standard are used,

they shall be used in accordance with the rules and constraints set out in this standard.

This standard defines the public interface to the SystemC AMS class library and the constraints on how those

classes may be used. The SystemC AMS class library may be implemented in any manner whatsoever, provided

only that the obligations imposed by this standard are honored.

A C++ class library may be extended using the mechanisms provided by the C++ language. Implementors and

users are free to extend SystemC AMS extensions in this way, provided that they do not violate this standard.

NOTE—It is possible to create a well-formed C++ program that is legal according to the C++ programming language

standard but that violates this standard. An implementation is not obliged to detect every violation of this standard.

1.5 Relationship with SystemC

This standard is built on IEEE Std 1666-2011 and extends it using the mechanisms provided by the C++

language, to provide an additional layer of analog/mixed-signal constructs. Consequently, an implementation

and application may use the SystemC core language and predefined channels defined in the namespace sc_core

and the SystemC data types defined in the namespace sc_dt, unless stated otherwise.

Any SystemC compliant application shall behave the same in the presence of the SystemC AMS extensions.

1.6 Guidance for readers

Readers who are not entirely familiar with the SystemC AMS extensions should start with Annex A, which

provides a brief informal summary of the subject intended to aid in the understanding of the normative

definitions. Such readers may also find it helpful to scan the examples embedded in the normative definitions

and to see Annex B.

Readers should pay close attention to Clause 3. An understanding of the terminology and conventions defined

in that clause is necessary for a precise interpretation of this standard.

The semantic definitions given in the subsequent clauses detailing the individual classes are built upon the

foundations laid in Clause 4.

Clause 5, Clause 6 and Clause 7 define the public interface to the SystemC AMS class library defining the

predefined models of computation.

Notes in text, tables, and figures are given for information only and do not contain requirements needed to implement the standard.

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IEEE Std 1666.1-2016

IEEE Standard for Standard SystemC

Analog/Mixed-Signal Extensions Language Reference Manual

3. Terminology and conventions used in this standard

3.1 Terminology

3.1.1 Shall, should, may, can

The word shall is used to indicate a mandatory requirement.

The word should is used to recommend a particular course of action, but does not impose any obligation.

The word may is used to mean shall be permitted (in the sense of being legally allowed).

The word can is used to mean shall be able to (in the sense of being technically possible).

In some cases, word usage is qualified to indicate on whom the obligation falls, such as an application may

or an implementation shall.

3.1.2 Implementation, application

The word implementation is used to mean any specific implementation of the full SystemC AMS class library

as defined in this standard, only the public interface of which need be exposed to the application.

The word application is used to mean a C++ program, written by an end user, that uses the SystemC AMS class

library, that is, it uses the classes, functions, or macros defined in this standard.

3.1.3 Call, called from, derived from

The term call is taken to mean call directly or indirectly. Call indirectly means call an intermediate function

which in turn calls the function in question, where the chain of function calls may be extended indefinitely.

Similarly, called from means called from directly or indirectly.

Except where explicitly qualified, the term derived from is taken to mean derived directly or indirectly from.

Derived indirectly from means derived from one or more intermediate base classes.

3.1.4 Specific technical terms

The specific technical terms as defined in IEEE Std 1666-2011 also apply for the AMS extensions. In addition,

the following technical terms are defined:

A model of computation (MoC) is a set of rules defining the behavior and interaction between AMS primitive

modules. The defined models of computation in this standard are: timed data flow (TDF), linear signal flow

(LSF) and electrical linear networks (ELN).

A cluster is a set of AMS primitive modules connected by channels via AMS ports, which have no defined

decoupling semantics. All modules have to be associated with the same model of computation.

An AMS primitive module is a class derived from the class sca_core::sca_module and associated with a model

of computation. A primitive module cannot be hierarchically decomposed and contains no child modules or

channels. A TDF module is a primitive module derived from class sca_tdf::sca_module. An LSF module is

a primitive module derived from class sca_lsf::sca_module. An ELN module is a primitive module derived

from class sca_eln::sca_module.

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IEEE Std 1666.1-2016

IEEE Standard for Standard SystemC

Analog/Mixed-Signal Extensions Language Reference Manual

An AMS port is a class derived from the class sca_core::sca_port and associated with a model of computation.

A primitive port is a port of a primitive module.

An AMS terminal is a class derived from the class sca_core::sca_port and associated with the electrical linear

networks model of computation.

An AMS interface is a class derived from the class sca_core::sca_interface and associated with a model of

computation.

An AMS interface proper is an abstract class derived from the class sca_core::sca_interface and associated

with a model of computation.

An AMS channel is a non-abstract class derived from one or more interfaces and associated with a model

of computation.

An AMS node is an object of the class sca_eln::sca_node or sca_eln::sca_node_ref and is an AMS channel

associated with the electrical linear networks model of computation.

An AMS signal is an object of the class sca_tdf::sca_signal or sca_lsf::sca_signal and is an AMS channel

associated with the timed data flow or linear signal flow model of computation, respectively.

3.2 Syntactical conventions

3.2.1 Implementation-defined

The italicized term implementation-defined is used where part of a C++ definition is omitted from this standard.

In such cases, an implementation shall provide an appropriate definition that honors the semantics defined in

this standard.

3.2.2 Disabled

The italicized term disabled is used within a C++ class definition to indicate a group of member functions that

shall be disabled by the implementation so that they cannot be called by an application. The disabled member

functions are typically the default constructor, the copy constructor, or the assignment operator.

3.2.3 Ellipsis (...)

An ellipsis, which consists of three consecutive dots (...), is used to indicate that irrelevant or repetitive parts

of a C++ code listing or example have been omitted for clarity.

3.2.4 Class names

Class names italicized and annotated with a superscript dagger (

†

) should not be used explicitly within an

application. Moreover, an application shall not create an object of such a class. An implementation is strongly

recommended to use the given class name. However, an implementation may substitute an alternative class

name in place of every occurrence of a particular daggered class name.

Only the class name is being considered here. Whether any part of the definition of the class is implementation-

defined is a separate issue.

The class names in question are the following:

sca_core::sca_assign_from_proxy

†

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