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LMK5B33216: device setup measurements

Part Number: LMK5B33216

Looking at the data sheet and programmers guide I am looking for registers or ways to verify the output frequencies are correct without having to manually meaure via physical pin measurements.  Are there registers that will give a clock freq good or locked to help verify the setup

  • Hi Troy, 

    To check APLL/DPLL lock status, you can reference the fields on the "Status" page in the LMK5B33216 TICS Pro GUI. There are registers for APLL1/2 lock status (LOL_PLL1 = R33[3], LOL_PLL2 = R33[2]), and if you're using APLL3 with an external reference you could also check the DPLL3 lock status (LOPL_DPLL3 = R36[3], LOFL_DPLL3 = R36[6]). Let me know if this helps. 

    Regards, 

    Connor