External Memory Interface Handbook Volume 3: Reference Material

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

8. Functional Description—QDR II Controller

The QDR II, QDR II+, and QDR II+ Xtreme controller translates memory requests from the Avalon Memory-Mapped (Avalon-MM) interface to AFI, while satisfying timing requirements imposed by the memory configuration. QDR II, QDR II+, and QDR II+ Xtreme SRAM has unidirectional data buses, therefore read and write operations are highly independent of each other and each has its own interface and state machine.

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