Last updated 19 February 1996 by sh.


       European Space Agency VHDL Repository: document directory
       =========================================================

This directory is used for storing documents related to VHDL, ASIC
design, FPGAs and components for designing spacecraft electronics.


                             COPYRIGHT
                             ---------

Unless otherwise specified, the following copyright notice applies to
all information in this repository:

    Copyright (c) 1995 European Space Agency. All rights reserved.

    This information may be used and distributed without restriction
    provided that this copyright statement is retained and that any
    derivative work acknowledges the origin of the information.


                             DISCLAIMER
                             ----------

All information is provided "as is", there is no warranty that the
information is correct or suitable for any purpose, neither implicit
nor explicit.

The information does not necessarily reflect the policy of the European 
Space Agency.


                             CONTENTS
                             --------

BoardLevel.ps    "VHDL Models for Board-level Simulation", ref. WSM/SH/010 
                 Draft 
                 This document provides recommendations for development and 
                 usage of VHDL models intended for Board-level simulation. 
                 The purpose of these recommendations is to define modelling 
                 criteria that will produce models that are highly accurate 
                 in both functionality and timing, and that will provide 
                 sufficient simulation performance to facilitate long 
                 simulation runs.
                 Format: postscript.

CompList.ps      "Support Component List", ref. WDN/PS/822 Issue 2
                 This document contains summary information for European 
                 components for space applications. Their main characteristics
                 are listed, including radiation tolerance. as well as
                 coordinates to contact persons for further information.
                 Format: postscript.

DesignReq.ps     "ASIC Design and Manufacturing Requirements", ref. WDN/PS/700
                 Issue 2
                 This document specifies ESA ASIC design requirements to be
                 applied in ESA contracts (when so specified). The document is
                 focused on the development of ASSPs (Application Specific
                 Standard Products), i.e. ASICs that are to be made commonly
                 available.
                 Format: postscript.

ModelGuide.ps    "VHDL Modelling Guidelines", ref. ASIC/001 Issue 1
                 The ESA VHDL Modelling Guidelines have been established to
                 ensure a good coding standard for VHDL, w.r.t. to
                 readability, portability and extensive verification. There
                 are separate sections dealing with specific requirements
                 for models for component simulation, board-level simulation,
                 system-level simulation and testbenches. The document is
                 being used for education at several universities, as a base
                 for company specific guidelines etc.
                 Format: postscript.

UseOfVHDL.ps     "The Usage of VHDL in the European Space Agency"
               	 An overview of the current and envisaged (April 1995) usage 
                 of VHDL within ESA. Describes the background, scope and 
                 purpose of the ESA VHDL Modelling Guidelines, and introduces
                 the upcoming document "VHDL Models for Board-level 
                 Simulation". Outlines a planned scheme for making VHDL models
                 for Board-level simulation available including schemes for
                 protecting the design information. The paper was presented at
                 the Workshop on Libraries, Component Modeling and Quality 
                 Assurance in Nantes (F), April 1995.
                 Format: postscript (apparently some printers are not able to
                         print the figures, HP LaserJet 4 is an example).

VHDLReport.ps    "The VHDL Standard" (by E2S n.v.)
                 An overview of the May 1994 status of the VHDL standard
                 and associated activities within the IEEE, EIA, and
                 ESPRIT projects. An extensive summary of VHDL repositories
                 is included, together with a list of European VHDL tools.
                 Format: postscript.