参数资料
型号: IP-SDRAM/DDR2
厂商: Altera
文件页数: 6/106页
文件大小: 0K
描述: IP DDR2 SDRAM CONTROLLER
标准包装: 1
系列: *
类型: MegaCore
功能: DDR2 SDRAM 控制器
许可证: 初始许可证
1–2
Table 1–2. Device Family Support (Part 2 of 2)
Chapter 1: About This Compiler
Features
Support
Device Family
Other device families (2) , (3)
DDR SDRAM
No support
DDR2 SDRAM
No support
Notes to Table 1–2 :
(1) For new Stratix II designs, use the DDR and DDR2 SDRAM High-Performance Controller.
(2) For more information on support for Stratix III devices with existing designs, contact Altera.
(3) For new Stratix III or Cyclone III designs, use the DDR and DDR2 SDRAM High-Performance Controller.
Features
Support for industry-standard DDR and DDR2 SDRAM devices and modules
1, 2, 4, or 8 chip-select signals
Data mask signals for partial write operations
Bank management architecture, which minimizes latency
Configurable data width
DQS read postamble control logic
Free clear-text datapath for use with custom controller
Automatic or user-controlled refresh
Support for registered DIMMs
Optional non-DQS read mode for Stratix and Stratix II side banks
IP Toolbench-generated constraint script
Quick and easy implementation with example design
System timing analysis
Support for OpenCore Plus evaluation
SOPC Builder ready
IP functional simulation models for use in Altera-supported VHDL and Verilog
HDL simulators
General Description
The Altera DDR and DDR2 SDRAM Controller Compiler comprises the DDR SDRAM
Controller MegaCore function and the DDR2 SDRAM Controller MegaCore function.
The MegaCore functions provide simplified interfaces to industry-standard DDR
SDRAM and DDR2 SDRAM devices.
The DDR and DDR2 SDRAM Controllers handle the complex aspects of using DDR or
DDR2 SDRAM—initializing the memory devices, managing SDRAM banks, and
keeping the devices refreshed at appropriate intervals. The DDR and DDR2 SDRAM
Controllers translate read and write requests from the local interface into all the
necessary SDRAM command signals.
March 2009 Altera Corporation
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