Difference between Legacy Endpoint and Native Endpoint in C6678

mohammed lajghal

Prodigy 170 points

hi everybody,

I want to configure my DSP C6678 to Endpoint mode. but it exist Legacy Endpoint and Native Endpoint.

i want know the difference.

Best Regards,

over 13 years ago

0 Chad Courtney over 13 years ago

TI__Mastermind 30825 points

Native Endpoint is for use w/ Native PCIe devices. Legacy Endpoint is for interoperating w/ Legacy PCI devices. If you're system is fully PCIe then you want to use Native Endpoint.

Best Regards,

Chad

0 mohammed lajghal over 13 years ago in reply to Chad Courtney

Prodigy 170 points

thanks for your information,

in Spec of PCIE 1.0. for example if i want to do IO transaction. i must configure my device at legacy Endpoint mode. because Native Endpoint not support the IO transaction.

Best regards,

0 mohammed lajghal over 13 years ago in reply to mohammed lajghal

Prodigy 170 points

in Spec of PCIE 1.0. for example if i want generate I/O requests. i must configure my device as a legacy Endpoint mode. because Native Endpoint must not generate I/O requests.

Best regards,

0 Chad Courtney over 13 years ago in reply to mohammed lajghal

TI__Mastermind 30825 points

Mohammed,

The last two statements would be correct. The Legacy vs Native Endpoint modes and their usage is defined by the PCIe Specs, note we're at Gen 2 but it's backwards compatible w/ Gen 1 and as such the Legacy vs Native Endpoint modes are carried forward.

Best Regards,

Chad

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Difference between Legacy Endpoint and Native Endpoint in C6678