ESA title
Enabling & Support


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ESA / Enabling & Support / Space Engineering & Technology / Microelectronics

IP Core for medium data rate PDT, compliant with CCSDS 131.2-B-1 standard.


The IP Core for Medium Data Rate PDT implements a Serially Concatenated Convolutional Coding (SCCC) scheme for telemetry application, which functionality is compliant with CCSDS 131.2-B-1 (Flexible advanced coding and modulation scheme for high rate telemetry applications) standard. The transmitter makes use of a large variety of modulation schemes (including QPSK, 8-PSK, 16-APSK, 32-APSK and 64-APSK) and a wide range of coding rates.

SCCC IP Core Block Diagram
SCCC IP Core Block Diagram


The CCSDS Telemetry Transmitter IP core ports can be divided into the following interfaces, based on the functionality they are related to:

  • Input data interface
  • Output data interface
  • Configuration and status interface
  • LUT loader interface
  • Clock, reset and enable


The architecture was conceived with flexibility in mind. In order to easily adapt the IP core to many different use cases, it is provided with a complete set of hard configuration parameters, which allow enabling/disabling features of the processing, as well as optimizing the architecture in terms of performance/complexity trade-off. The hard configuration parameters are all accessible via the top-level generics.

Verification and validation

The IP Core has been extensively verified against a Matlab golden reference model. Validation was performed on RTG4 and BRAVE NG-MEDIUM development boards.

Technology mapping

The IP Core has been successfully mapped to the following target technologies:

  • Microsemi RTAX2000
  • Microsemi ProASIC RT 3000L
  • Microsemi RTG4
  • Xilinx Virtex5-QV

Current version



IngeniArs, 2018

Special licensing restrictions

None. The IP Core can be licensed to ESA Member States for ESA's own requirements.

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