使用 Virtex-4 器件的 DDR2 控制器（267 MHz 及以上）

使用 Virtex-4 器件的 DDR2 控制器（267 MHz 及以上）
Application Note: Virtex-4 FPGAs

R DDR2 Controller (267 MHz and Above)
Using Virtex-4 Devices
XAPP723 (v1.4) October 17, 2007 Author: Karthi Palanisamy



Summary DDR2 SDRAM devices offer new features that go beyond the DDR SDRAM specification and
enable the DDR2 device to operate at data rates of 666 Mb/s. High data rates require higher
performance from the controller and the I/Os in the FPGA. To ac