Transaction-level modeling (TLM) is an approach to modelling complex digital systems by using electronic design automation software. TLM language (TLML) is a hardware description language, usually, written in C++ and based on SystemC library. TLMLs are used for modelling where details of communication among modules are separated from the details of the implementation of functional units or of the communication architecture. It's used for modelling of systems that involve complex data communication mechanisms.
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| - Transaction-level modeling (en)
- 事务级建模方法 (zh)
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| - TLM（事务级建模方法，Transaction-level modeling）是一种高级的数字系统模型化方法，它将模型间的通信细节与函数单元或通信架构的细节分离开来。通信机制（如总线或者FIFO）被建模成信道，并且以SystemC接口类的形式向模块呈现。事务请求一般在调用这些信道模型的接口函数时发生，而接口函数封装了信息交换的底层细节。在事务层面上，TLM更强调数据传输的功能本身——数据的内容和传输的起止点，并尽可能少涉及具体实现。这种方法使得系统级设计者测试不同的总线架构（这些架构均支持公共的抽象接口）更加方便，通过这些公共接口进行模块间交互，无需对模块重新编码。 然而，TLM模型的应用程序并不仅限于使用SystemC作为编程语言，同样也可以采用其他语言。TLM的概念首次出现在system level language and modeling domain中。 (zh)
- Transaction-level modeling (TLM) is an approach to modelling complex digital systems by using electronic design automation software. TLM language (TLML) is a hardware description language, usually, written in C++ and based on SystemC library. TLMLs are used for modelling where details of communication among modules are separated from the details of the implementation of functional units or of the communication architecture. It's used for modelling of systems that involve complex data communication mechanisms. (en)
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| - Transaction-level modeling (TLM) is an approach to modelling complex digital systems by using electronic design automation software. TLM language (TLML) is a hardware description language, usually, written in C++ and based on SystemC library. TLMLs are used for modelling where details of communication among modules are separated from the details of the implementation of functional units or of the communication architecture. It's used for modelling of systems that involve complex data communication mechanisms. Components such as buses or FIFOs are modeled as channels, and are presented to modules using SystemC interface classes. Transaction requests take place by calling interface functions of these channel models, which encapsulate low-level details of the information exchange. At the transaction level, the emphasis is more on the functionality of the data transfers – what data are transferred to and from what locations – and less on their actual implementation, that is, on the actual protocol used for data transfer. This approach makes it easier for the system-level designer to experiment, for example, with different bus architectures (all supporting a common abstract interface) without having to recode models that interact with any of the buses, provided these models interact with the bus through the common interface. However, the application of transaction-level modeling is not specific to the SystemC language and can be used with other languages. The concept of TLM first appears in system level language and modeling domain. Transaction-level models are used for high-level synthesis of register-transfer level (RTL) models for a lower-level modelling and implementation of system components. RTL is usually represented by a hardware description language source code (e.g. VHDL, SystemC, Verilog). (en)
- TLM（事务级建模方法，Transaction-level modeling）是一种高级的数字系统模型化方法，它将模型间的通信细节与函数单元或通信架构的细节分离开来。通信机制（如总线或者FIFO）被建模成信道，并且以SystemC接口类的形式向模块呈现。事务请求一般在调用这些信道模型的接口函数时发生，而接口函数封装了信息交换的底层细节。在事务层面上，TLM更强调数据传输的功能本身——数据的内容和传输的起止点，并尽可能少涉及具体实现。这种方法使得系统级设计者测试不同的总线架构（这些架构均支持公共的抽象接口）更加方便，通过这些公共接口进行模块间交互，无需对模块重新编码。 然而，TLM模型的应用程序并不仅限于使用SystemC作为编程语言，同样也可以采用其他语言。TLM的概念首次出现在system level language and modeling domain中。 (zh)
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