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HMC783(764,765,807) userguide error?

I'm using HMC783 in my design recently, but I find the user guide of hmc783 is incompatible with it, while it is similar to hmc700 about register discription on Reg 0Dh GPO_SPI_RDIV Register (page A-21). The user guide mentions D1 & D0 pins, but HMC783 does not have these pins. I'd like to watch the REFDIV output signal on LD_SDO pin to check whether the chip is working or not. So can anyone give some advice about HMC783 ? Thank you very much !

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