LS1043 : Clock input for XFI

ChienNQ — Mon, 27 Nov 2023 14:49:22 GMT

Hi NXP support team,

Can XFI(10Gps) use SD1_REF_CLK 100Mhz clock instead of 156.25Mhz clock?

Thanks and best regards,

Trend Nguyen

Re: LS1043 : Clock input for XFI

yipingwang — Thu, 07 Dec 2023 08:05:57 GMT

We have a Broadcom dual 10GE PHY on our LS1043’s SerDes A and B. Due to having the wrong clocks on the SerDes inputs of our bring-up board (both are 100MHz, no 156.25MHz) we have switched the SerDes protocol mode to 3355 (A & B = SGMIIl, C & D = PCIe). Our board has MDIO wired to EMI2. In the RCW we have bits 425-426 (MDC/MDIO) set to 0b00 so both ports should be active, and we have the proper drive modes for all four of the MDC/MDIO pins chosen correctly.

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LS1043 : Clock input for XFI

Re: LS1043 : Clock input for XFI