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# 2.28 DDR2 SDRAM Controller (DDR)

The DDR2 SDRAM Controller implements the controls for an external memory bus interface using the Dual Data Rate version 2 (DDR2) protocol and electrical interface that adheres to the JEDEC Standard JESD79-2F (Nov. 2009).

The component consists of a DDR2 SDRAM Controller Core with configurable options and a DDR2 Physical Interface.

## Library Interface

DDR2 SDRAM Controller peripheral library provides the following interfaces:

Functions

Name | Description
--- | ---
DDR_Initialize | Initializes and Enables the DDR External Memory Controller

Note: Not all APIs maybe implemented. See the specific device family section for available APIs.