AnsweredAssumed Answered

To use external clock with spread spectrum for i.MX6 IPU/LDB.

Question asked by Satoshi Shimoda on Feb 27, 2014
Latest reply on Mar 10, 2014 by alejandrolozano

Hi community,


I want to confirm the specification of i.MX6 PLL in CCM module.

Actually, I want to use a external clock with spread spectrum via CLK1_N/CLK1_P pin to IPU, LDB as following route.

external clock -> CLK1_N, CLK1_P -> PLL5(CCM_ANALOG) -> CCM -> IPU, LDB


In this case, I think spread spectrum is preserve if I set PLL5 to bypass mode by BYPASS bit (CCM_ANALOG_PLL_VIDEOn[16] in chapter18.7.11 of IMX6DQRM Rev.1).

Is this correct?

Or spread spectrum will be cancelled by PLL5 even if it is set to bypass mode?


Best Regards,

Satoshi Shimoda