Article ID: 000079702 Content Type: Troubleshooting Last Reviewed: 08/26/2016

Why is the read data misaligned when using the ALTASMI_PARALLEL megafunction?

Environment

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Description The dataout[] port from the ALTASMI_PARALLEL megafunction will be misaligned when reading from EPCQ devices if the number of dummy cycles set in the EPCQ non-volatile configuration register (NVCR) does not match the value expected by the ALTASMI_PARALLEL megafunction.
Resolution To ensure that the correct number of dummy cycles is used by the ALTASMI_PARALLEL megafunction, use the Read device dummy clock port on the ALTASMI_PARALLEL megafunction. For more information on this feature refer to the Active Serial Memory Interface (ALTASMI_PARALLEL) Megafunction User Guide (PDF).

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Intel® Programmable Devices