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ADDI9020: interrupt functionality with external SYNC input

Question asked by sthachils@gmx.com on Feb 3, 2017
Latest reply on Feb 14, 2017 by sthachils@gmx.com

Hello,

 

With reference to the datasheet of ADDI9020 Rev. SpC

 

I would like to reset internal counters and hsync and vsync with an external SYNC input. I am following the steps mentioned in "recommended power-up sequence" steps 1 to 5 with special attention to step 2.i (master mode) and steps 5.f,g,h. However the observation is that SYNC pin does not have any effect even though it is configured to act as an interrupt pin.

 

Has anyone faced the same issue? Appreciate any help in advice, settings, or options to explore.

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