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Mixed Mode Modelling and Simulation, IEE Colloquium on

Date 1994

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  • Utilizing mixed mode simulation

    Publication Year: 1994 , Page(s): 10/1 - 10/3
    Click to expandAbstract | PDF file iconPDF (128 KB)  

    Discusses how in mixed mode simulation there is a choice of specifying accuracy or specifying performance. Increased accuracy is obtained at the cost of more CPU-time. Circuits containing analog and digital components which are too expensive to simulate in a low level simulator can be naturally simulated in mixed mode. Schematic diagrams containing different levels of abstraction can be logically ... View full abstract»

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  • Analogue behavioural modelling and simulation using VHDL and Saber-MAST

    Publication Year: 1994 , Page(s): 1/1 - 1/5
    Click to expandAbstract | PDF file iconPDF (268 KB)  

    The IEEE standard 1076 VHDL (VHSIC Hardware Description Language) has been widely used as the universal medium for the exchange of designs and the simulation tool. The current version of VHDL is primarily used for digital simulations; it is not yet a mixed-mode simulator. However, it provides the capabilities of modelling analogue signals and analogue behavioural functions in addition to digital m... View full abstract»

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  • Analogue fault simulation

    Publication Year: 1994 , Page(s): 9/1 - 9/5
    Click to expandAbstract | PDF file iconPDF (224 KB)  

    Analogue testing often takes a functional approach. However, a number of structural (fault-orientated) approaches are being investigated and have been shown to have advantages such as reliability indication. One of the main problems with a structural approach is the lengthy run times for analogue fault simulation (AFS). The paper describes the use of higher level modelling of analogue functional b... View full abstract»

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  • IEE Colloquium on `Mixed Mode Modelling and Simulation' (Digest No.1994/205)

    Publication Year: 1994
    Click to expandAbstract | PDF file iconPDF (236 KB)  

    The following topics were dealt with: analogue behavioural modelling and simulation using VHDL and SABER-MAST; behavioural-level mixed A/D system exploration; modelling in VHDL-A; simulation of mixed mode systems with enhanced visualization using virtual reality techniques; modelling abstraction; mixed-signal simulation using the ALFA simulation backplane; parallel computing for mixed mode system ... View full abstract»

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  • Modelling abstraction-the highs and lows of mixed mode simulation

    Publication Year: 1994 , Page(s): 5/1 - 5/7
    Click to expandAbstract | PDF file iconPDF (428 KB)  

    The paper focuses on the different types of mixed mode simulation that are available today and their use within the electronics design environment. It explains the benefits of verifying a design, which can be achieved by combining the high level abstraction of digital and analogue models using behavioural languages with lower levels of modelling abstractions like SPICE primitives or digital modell... View full abstract»

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  • Behavioural level mixed A/D system exploration

    Publication Year: 1994 , Page(s): 2/1 - 2/5
    Click to expandAbstract | PDF file iconPDF (220 KB)  

    Systems designers are constantly in need of different ways to explore their inherent creativity while at the same time bearing in mind that they may have to implement their ideas. It is important to be able to filter valuable ideas early in the development cycle and run multiple what-if scenarios to fully evaluate the potential of a given idea. The intent of this paper is to discuss practical ways... View full abstract»

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  • Mixed-signal simulation using the Alfa simulation backplane

    Publication Year: 1994 , Page(s): 6/1 - 6/3
    Click to expandAbstract | PDF file iconPDF (164 KB)  

    While specialised, integrated mixed-signal simulators have been successfully developed, they cannot, in general, be extended easily to include further simulation algorithms. The concept of a simulation backplane has been proposed in which any number of general simulators can be coupled to allow a wide range of mixed-signal, mixed-level simulations to be performed. A standard set of programming int... View full abstract»

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  • Simulation of mixed-mode systems with enhanced visualisation using virtual reality techniques

    Publication Year: 1994 , Page(s): 4/1 - 4/4
    Click to expandAbstract | PDF file iconPDF (204 KB)  

    Most manufacturing oriented simulation languages only offer the facility to model the system in one mode: discrete or continuous. However if a real, single mode system is examined more closely, some characteristics of the opposing mode can usually be found. It is to what extent that the opposing mode can be neglected that determines in which mode the system can be successfully modelled. For many s... View full abstract»

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  • Modelling in VHDL-A

    Publication Year: 1994 , Page(s): 3/1 - 3/4
    Click to expandAbstract | PDF file iconPDF (148 KB)  

    VHDL (IEEE Standard 1076) is currently being extended to include mixed-signal and analogue modelling (VHDL-A). A draft standard is expected in 1995. This paper describes two models developed in VHDL-A. One of the design objectives of VHDL-A is compatibility with SPICE, and, therefore, a version of the SPICE Level 3 MOS model has been written. The second model is of a phase-locked loop, including a... View full abstract»

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  • Parallel computing for mixed-mode system simulation

    Publication Year: 1994 , Page(s): 7/1 - 7/6
    Click to expandAbstract | PDF file iconPDF (256 KB)  

    The application of parallel processing to mixed-mode systems is discussed. A simplified version of an important application area in personal communications is used to demonstrate that simple partitioning of the overall computer task can lead to speed-ups in the simulation run times from those achieved using single processor systems. In addition, it is argued that the parallel processing approach i... View full abstract»

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