AnsweredAssumed Answered

[ADV7182] manual interrupts and self-clearing.

Question asked by Tamu on Aug 18, 2014
Latest reply on Sep 4, 2014 by takepiro

Hello.

I have questions about ADV7182.

 

Question 1:
  There is a following description about manual interrupts on the datasheet page.85
    Address: 0x40 bit2, MPU_STIM_INTRQ; manual interrupt set mode
    0 => Manual interrupt mode disabled
    1 => Manual interrupt mode enabled
  But I don't know how to use the Manual interrupt mode.
  Could you tell me how to use the Manual interrupt mode after we set MPU_STIM_INTRQ to 1?

 

Question 2:
  About RSD (Recommended Register Settings) document, following point is changed between Rev.A and Rev.B.
    Rev.A page.13
      42 40 D5 (Activate manual interrupts.)
    Rev.B page.13
      42 40 D1 (Not activate manual interrupts.)
  Could you tell me why it changed?

 

Question 3:
  About RSD (Recommended Register Settings) document, following point is changed between Rev.A and Rev.B.
    Rev.A page.13
      42 43 00
      Clear SD_LOCK and SD_UNLOCK interrupts <step 2>
    This description is removed on Rev.B.
  Don't "SD_LOCK and SD_UNLOCK clear bits" need to set back to 0?
  I think we have to set them back to 0 because there is no description about "self-clearing" on these registers.
  What do you think?

 

Thank you.
Best regards.

Outcomes