The Nexus 5001™ Forum is currently considering the feasibility of providing interested parties with a VHDL model of the Nexus interface behavior.
No. The Nexus 5001™ Forum Standard for Global Embedded Processor Debug Interface can scale from 3 pins and up.
Yes, essentially there could be many parameters to handle across the serial line, hence the reason why there will be the need for each semiconductor vendor to provide additional RAM/Flash resources on-chip.
All protocol questions are currently outside the scope of the Nexus 5001™ Forum Standard.
All semiconductor members within the forum have long-term commitments outside of the automotive arena to suggest that there will likely be a number of embedded application areas utilizing the resources of a Nexus 5001™ interface.
Not at this time. However, there is an initiative to explore the possibility of a generic Nexus API.
The Nexus 5001™ interface connector will be sufficiently robust to protect against spurious noise from the outside world.
Yes, there is a flash security protection that is vendor-specific and not an integral part of the standard.
This is a vendor-specific question that will be dictated by the internal bus width and clock speed to provide the required bandwidth.
The Nexus 5001™ interface is an open industry standard which is not limited to Hewlett-Packard and ETAS. The more tool vendors that choose to endorse and implement the interface, the more successful the standard will become.