67.5.3.2 DDR Voltage Reference
The DDR_VREF pin serves as a voltage reference input for the DDR I/Os when DDR2, DDR3 or DDR3L external SDRAM memories are used.
The DDR_VREF pin serves as a voltage reference input for the DDR I/Os when DDR2, DDR3 or DDR3L external SDRAM memories are used.
The online versions of the documents are provided as a courtesy. Verify all content and data in the device’s PDF documentation found on the device product page.