External Memory Interface Handbook Volume 3: Reference Material

ID 683841
Date 7/24/2019
Public
Document Table of Contents

4.6. Calibration

The purpose of calibration is to exercise the external memory interface to find an optimal window for capture clock. There is no calibration for writing data or for address and command output; these paths are analyzed by TimeQuest to meet timing requirements.

The calibration algorithm assumes that address and command signals can reliably be sent to the external memory device, and that write data is registered with DQS.

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