参数资料
型号: IPR-SDRAM/DDR2
厂商: Altera
文件页数: 97/106页
文件大小: 0K
描述: IP DDR2 SDRAM CONTROLLER RENEW
标准包装: 1
系列: *
类型: MegaCore
功能: DDR2 SDRAM 控制器
许可证: 续用许可证
B–3
6. The DDR SDRAM wizard automatically creates constraint scripts for the high-
speed DDR SDRAM signals in the top-level design. Therefore, the DDR SDRAM
controller top-level pin names must match what the DDR SDRAM controller
wizard expects. Otherwise, the proper constraints are not made. The following
three settings in the DDR wizard define the pin names to which constraints are
made:
Pin name of clock driving memory (+)
Pin name of clock driving memory (-)
Prefix all DDR SDRAM pins with
Ensure that the DDR SDRAM controller pins at the top-level design adhere to the
naming conventions defined in these settings.
7. For the constraint scripts to work correctly, you must name some 1-bit DDR
SDRAM signals using bus notation at the top-level design, if the top-level design is
a BDF schematic file, which means they require a suffix of [0]. Locate the following
example pins and rename with a [0] suffix:
clk_to_sdram_p
clk_to_sdram_n
sdram_cs_n
sdram_cke
The pins now have the following names:
clk_to_sdram_p[0]
clk_to_sdram_n[0]
sdram_cs_n[0]
sdram_cke[0]
1
The pin names can change depending on the settings made in step 6 , but they must
have the [0] suffix in the top-level schematic.
? March 2009
Altera Corporation
相关PDF资料
PDF描述
GEM31DTBN-S189 CONN EDGECARD 62POS R/A .156 SLD
GEM31DTBH-S189 CONN EDGECARD 62POS R/A .156 SLD
GEM31DTBD-S189 CONN EDGECARD 62POS R/A .156 SLD
GEM31DTAN-S189 CONN EDGECARD 62POS R/A .156 SLD
10YXJ2200M10X20 CAP ALUM 2200UF 10V 20% RADIAL
相关代理商/技术参数
参数描述
IP-RSENC 功能描述:开发软件 Reed-Solomon Encoder MegaCore RoHS:否 制造商:Atollic Inc. 产品:Compilers/Debuggers 用于:ARM7, ARM9, Cortex-A, Cortex-M, Cortex-R Processors
IPR-SLITE2 功能描述:开发软件 SerialLite II MegaCore RENEWAL RoHS:否 制造商:Atollic Inc. 产品:Compilers/Debuggers 用于:ARM7, ARM9, Cortex-A, Cortex-M, Cortex-R Processors
IPR-SRAM/QDRII 功能描述:开发软件 QDRII SRAM Control MegaCore RENEWAL RoHS:否 制造商:Atollic Inc. 产品:Compilers/Debuggers 用于:ARM7, ARM9, Cortex-A, Cortex-M, Cortex-R Processors
IPR-SSIP 功能描述:开发软件 Crypto Bundle BU Solution RoHS:否 制造商:Atollic Inc. 产品:Compilers/Debuggers 用于:ARM7, ARM9, Cortex-A, Cortex-M, Cortex-R Processors
IPR-TRIETHERNET 功能描述:开发软件 Triple Speed Ethernt MegaCore RENEWAL RoHS:否 制造商:Atollic Inc. 产品:Compilers/Debuggers 用于:ARM7, ARM9, Cortex-A, Cortex-M, Cortex-R Processors