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LMK04816: Regarding the programming of 32 registers, is it performed after each register is written or after all registers are written?

Part Number: LMK04816

Hi,

Regarding the programming of 32 registers of LMK04816, is it performed after each register is written or after all registers are written?

If two outputs are placed in two different GROUP (switch bits in different registers), can they be turned off at the same time?

Best regards.

  • Hello,

    After each programming of registers, the output condition would be updated.

    If you want a way to control the output of multiple clock outputs with a single register, I recommend using the SYNC feature.  When held in SYNC by external pin or register bit (SYNC_POL_INV, which actually inverts the input pin) there will be no output clocks.  When SYNC is released the outputs will begin to toggle (for which NO_SYNC_CLKoutX_Y = 0).  You can select which outputs this will apply to by the NO_SYNC_CLKoutX_Y fields.  You could set the SYNC condition at start-up to keep all outputs ff during programming.

    Note: SYNC does not impact outputs which are /1.  They will still operate.

    73,
    Timothy

  • Thanks for your help.