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DS320PR810: 4 x2 bus width configuration

Alan Malone
Prodigy 30 points
Part Number: DS320PR810
Other Parts Discussed in Thread: DS320PR822

Tool/software:

Hi,

The 8ch DS320PR810 supports 2 x4 and greater bus width configuration but can it support 4 x2 device (using the same refclk)?

There is the DS320PR822 or course but what limits the DS320PR810 to having a support limitation of x4 bus width?

thanks

  • +1
    TI__Mastermind 18655 points

    Hi Alan,

    The DS320PR810 and other linear redrivers are protocol agnostic devices that don't care about specific device widths or the PCIe REFCLK. From the DS320PR810's perspective, using 8 channels as two x4 links and using 8 channels as four x2 links are essentially the same - the endpoints don't even need the same REFCLK.

    Best,

    Evan Su