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amolkumar
Occasional Contributor
12 hours agoQVLD pins on QDR-IV when AGILEX 7 EMIF IP does not use QVLD
Team,
We are using the CY7C4122KV13 / CY7C4142KV13 QDR-IV SRAM with the AGILEX 7 AGIB022R31A2I2VB.
The memory has QVLDA[1:0] and QVLDB[1:0] output pins that indicate valid read data.
NOTE: The AGILEX 7 EMIF IP user guide (UG-20218, Section 7.3.3.5) states that the external memory interface IP does not use the QVLD signal.
Could you please advise what we should do with the QVLD pins?
- Should they be left unconnected on the board, or connected to FPGA pins?
- If connected, should they be assigned in the IP or left as general-purpose I/O (for debug only)?
- Is any termination or pull-up/pull-down required on these pins?
Please let us know the recommended handling.
Regards
amol
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