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CosmoKramer's avatar
CosmoKramer
Icon for Occasional Contributor rankOccasional Contributor
2 years ago

local_reset_done and emif_usr_reset_n on emif ip

Could someone please help me understand difference and relation between these two signals on the emif ip - local_reset_done and emif_usr_reset_n ? If I toggle local_reset_req to the ip, then local_r...
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AdzimZM_Altera's avatar
AdzimZM_Altera
Icon for Regular Contributor rankRegular Contributor
2 years ago

Hi,


"1) after user issues reset_request, which of the two signals go high first:

emif_usr_reset_n

local_reset_done "

  • The local_reset_done should go from high to low. (active high)
  • Then emif_usr_reset_n should go from high to low. (active low)
  • The emif_usr_reset_n will go high again based on the calibration sequence.
  • Then after the calibration is finished, the local_reset_done will go high again.


"2) When these signals go low to high, it means that IP is out of reset. is that right?"

  • Yes.


Regards,

Adzim