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BKB's avatar
BKB
Icon for Occasional Contributor rankOccasional Contributor
2 years ago
Solved

Can we generate EMIF DDR4 without mem_alert_n or not connect the emif_alert_n in the instantiation

Hi Please refer the attached png/pdf of the pin map of two EMIF instantiations in our design. The initial board design shared a FPGA IO bank for some address/command signals of the two instances, r...
Memory
  • BKB's avatar
    BKB
    2 years ago
    Thanks Adzim.

    Best,

    BB

AdzimZM_Altera's avatar
AdzimZM_Altera
Icon for Regular Contributor rankRegular Contributor
2 years ago

Hi BB,

You can share the RZQ pin with two RZQ ports but the VCCIO need to be the same.

If not, the calibration will fail.

For alert_n placement, there is not much restriction.

You may use your current plan to fix your problem.

Regards,

Adzim