Double Data Rate IP Core User Guide

Description

The double data rate (DDR) I/O IP Cores (altddio_in, altddio_out, and altddio_bidir) let you configure the DDR I/O registers in Arria® GX, Stratix® III, Stratix® II, Stratix® II GX, Stratix, Stratix GX, Cyclone® III, Cyclone® II, Cyclone, HardCopy™ Stratix, HardCopy™ II, and APEX™ II devices.