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IP-XACT
The IP-XACT standard is an eXtensible Markup Language (XML) schema for documenting IP using metadata, which is both human readable and machine accessible [2], along with an Application Programming Interface (API) which allows software tools access to the stored meta-data [1]. The tools that are compatible with the IP-XACT standard are able to interpret, configure, implement and change IP blocks that are compliant with the IP meta-data description [1]. This provides all users of the standardised IP - whether it be the IP providers, EDA vendors or systems designers — with a consistent IP interface to facilitate IP reuse.
The standard was developed by the SPIRIT Consortium — a group of IP provider, electronic design, EDA and semiconductor companies — and is now managed by Accellera Systems Initiative. IP-XACT also provides software views, file lists, protocol standardisation and the ability to further extend the schema for additional design and flow information [1].
IP-XACT in no way describes the hardware functionality of IP, but instead describes the interface. It is therefore not a replacement for RTL languages such as VHDL or Verilog, embedded software or documentation, but is instead complementary: an IP-XACT component provides key information about the IP.
The standardisation of IP-XACT addresses a number of issues with IP reuse and provides ease of system integration and integration, as well as the ability to automate connections between IP. All of this amounts to the ability to drastically reduce time-to market, which is an ever increasing concern. IP-XACT has been developed to provide a standardised data exchange format which is robust enough to allow design flow automation and verification as well as the flexibility to be used by multiple IP designers, vendors, EDA vendors and end users.
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