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HMC764 SPI command

Hi All,

How to create the /WR and RD command? In the datasheet SPI write OP the first is /WR. The /WR is zero? or other command for it?

btw, Is I need send 32bit data to HMC764? 1 is /WR + 6bit reg address + 24 bit data + 1 bit x??

pls help me know it

Many Thanks

  • Hi there, 

    Write vs Read depends on the state of SEN and SDI. Please refer to the timing diagram and description on pages 13 & 14 of the user guide titled, PLL's with Integrated VCO Microwave Applications Product and Operating Guide for more information.  This is available on the Full Product page for the HMC764. 

    Best Regards,