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AD9554 config: can not setting 4 PLL parameter


   we am just debug the board use the AD9554 for the OTU2 ref clock,   the processor could access AD9554 by I2C port. and could get the Device ID, also could read and write Reg 0x200 and 0x201 ..


    I just only use Ref A(19.2MHz), left the RefB/RefC/RefD open (I just put the 0.01MHz for refb due to the GUI ask for 1 input for the other 3Ref input),  4chanel total 8port output 167.33166MHz, the following fig shows,

Does these setting work for board?

     we use the wizard to get the NonDefault register map(111 nondefault reg), last pic shows.  we only could set part of these reg, such as Reg0x200,Reg0x204,~reg0x346,  while we can not set the other regs,  from 0x400 to the end, we can change the setting,

why we can not change the nondefault register setting?

Is there any setting we should pay more attention?

Thank you in advance

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