Enabling & Support

ERC32 VMEbus Interface (EVI32 – HDL)

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ESA / Enabling & Support / Space Engineering & Technology
001 - Abstract:
The European Space Agency has developed a 32-bit VME interface circuit to interface the ERC32 processor chip set to the VMEbus. The EVI32 fully adheres to the IEEE 1014-1987 VMEbus standard, and is compatible with the commercial VMEbus specification. EVI32 can act as a system controller and provides both master and slave interfaces. It has been implemented as a synthesisable VHDL model. Licence agreement collaboration is sought.

Description of the offer:

The EVI32 synthesisable VHDL core is a 32-bit VME interface circuit designated to interface the ERC32 processor chip set to the VMEbus. 
The EVI32 fully adheres to the IEEE 1014-1987 VMEbus standard, and is compatible with the commercial VMEbus specification. 
The EVI32 IP Core can act as a system controller and provides both master and slave interfaces. It comprises the following functions:

  • A32/A24/D32/D16/D8 master and slave interface;
  • Interrupt handler;
  • Interrupter;
  • Single level arbiter (SGL);
  • VME bus timer;
  • Optimised D16 interface;
  • Four mailboxes for multi-processor communication;
  • Minimised usage of external buffers;

Innovations and advantages of the offer:

The EVI32 specification and VHDL design is a result of an internal development.

The design has been implemented in an FPGA and is suitable for implementation in radiation hard or tolerant ASIC technologies.

Domain of Application:

The VHDL core, adapted to the ERC32 three chip and single chip processors, as well as the 21020 DSP, has been implemented by Astrium Velizy to the T7907E chip under ESA contract.

  • Electronics
  • Microelectronics
  • Microprocessors

Domain of Application:

The system can be applied for monitoring systems and subsystems with similar requirements to those of space operations, e.g. real-time monitoring, multi-input, remote control etc.

  • Data processing, analysis and input services
  • Manufacturing/industrial
  • Other software related
  • Other electronics related equipment
  • Industrial measurement and sensing equipment

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