参数资料
| 型号： | IP-SRAM/QDRII |
| 厂商： | Altera |
| 文件页数： | 8/68页 |
| 文件大小： | 0K |
| 描述： | IP QDRII SRAM CONTROLLER |
| 标准包装： | 1 |
| 系列： | * |
| 类型： | MegaCore |
| 功能： | QDRII SRAM 控制器 |
| 许可证： | 初始许可证 |
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Performance and Resource Utilization
■
■
■
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Simulate the behavior of a megafunction (Altera MegaCore function
or AMPP SM megafunction) within your system
Verify the functionality of your design, as well as evaluate its size
and speed quickly and easily
Generate time-limited device programming files for designs that
include megafunctions
Program a device and verify your design in hardware
You only need to purchase a license for the megafunction when you are
completely satisfied with its functionality and performance, and want to
take your design to production.
f
For more information on OpenCore Plus hardware evaluation using the
QDRII SRAM Controller, refer to “OpenCore Plus Time-Out Behavior”
on page 3–10 and AN 320: OpenCore Plus Evaluation of Megafunctions .
Performance
and Resource
Table 1–3 shows typical expected performance for the QDRII SRAM
Controller MegaCore function, with the Quartus II software version 9.1.
Utilization
1
The example driver, which only demonstrates basic read and
write operation, can limit the performance, particularly in wide
interfaces. To improve performance, replace the example driver
or remove it and use the virtual pins on the controller.
Table 1–3. Performance
Device
Stratix II (EP2S60F1020C3)
Stratix II GX (EP2SGX30CF780C3)
Stratix (EP1S25F780C5)
f MAX (MHz)
300
300
200
Stratix II and Stratix II GX devices support QDRII SRAM at up to
300 MHz/1,200 Megabits per second (Mbps). Stratix and Stratix GX
devices support QDRII SRAM at up to 200 MHz/800 Mbps. Tables 1–4
through 1–6 show the clock frequency support for each device family,
with the Quartus II software version 9.1.
1–4 MegaCore Version 9.1
Altera Corporation
QDRII SRAM Controller MegaCore Function User Guide
November 2009
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