[time-nuts] Re: Ryzen mobos with serial port for Garmin GPS?

[Chris Caudle]

   On Nov 5, 2021 9:14 PM, Rich Wales <richw at richw.org> wrote:

     > If we could find PCI or PCIe serial cards

   The old Exar product line that MaxLinear acquired might still have PCIe
   UART.
   https://www.maxlinear.com/product/interface/uarts/pcie-uarts/xr17v352
   If you could find those on a card they should be good performance.  I
   haven't measured the performance of the UARTs in super IO chips.  Those
   would share the upstream connection with a lot of other things, so
   might vary in latency.
    -- Chris Caudle