External Memory Interface Handbook Volume 3: Reference Material

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

6.10. Resets

The SDRAM controller subsystem supports a full reset (cold reset) and a warm reset. The SDRAM controller can be configured to preserve memory contents during a warm reset.

To preserve memory contents, the reset manager can request that the single-port controller place the SDRAM in self-refresh mode prior to issuing the warm reset. If self-refresh mode is enabled before the warm reset to preserve memory contents, the PHY and the memory timing logic is not reset, but the rest of the controller is reset.

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