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| 型号： | EP1C6T240I6ES |
| 厂商： | Altera Corporation |
| 英文描述： | Cyclone FPGA Family Data Sheet |
| 中文描述： | 气旋的FPGA系列数据手册 |
| 文件页数： | 25/104页 |
| 文件大小： | 763K |
| 代理商： | EP1C6T240I6ES |
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Altera Corporation
January 2007
2–19
Preliminary
Embedded Memory
In addition to true dual-port memory, the M4K memory blocks support
simple dual-port and single-port RAM. Simple dual-port memory
supports a simultaneous read and write. Single-port memory supports
non-simultaneous reads and writes.
Figure 2–13
shows these different
M4K RAM memory port configurations.
Figure 2–13. Simple Dual-Port & Single-Port Memory Configurations
Note to
Figure 2–13
:
(1)
Two single-port memory blocks can be implemented in a single M4K block as long
as each of the two independent block sizes is equal to or less than half of the M4K
block size.
The memory blocks also enable mixed-width data ports for reading and
writing to the RAM ports in dual-port RAM configuration. For example,
the memory block can be written in
×
1 mode at port A and read out in
×
16
mode from port B.
The Cyclone memory architecture can implement fully synchronous
RAM by registering both the input and output signals to the M4K RAM
block. All M4K memory block inputs are registered, providing
synchronous write cycles. In synchronous operation, the memory block
generates its own self-timed strobe write enable (
wren
) signal derived
from a global clock. In contrast, a circuit using asynchronous RAM must
generate the RAM
wren
signal while ensuring its data and address
signals meet setup and hold time specifications relative to the
wren
data[
wraddress[
wren
inclock
inclocken
inaclr
rdaddress[
rden
q[
outclock
outclocken
outaclr
data[
address[
wren
inclock
inclocken
inaclr
q[
outclock
outclocken
outaclr
Single-Port Memory
(1)
Simple Dual-Port Memory
相关PDF资料 |
PDF描述 |
|---|---|
| EP1C6T240I7ES | Cyclone FPGA Family Data Sheet |
| EP1C6T240I8ES | Cyclone FPGA Family Data Sheet |
| EP1C6T256C6ES | Cyclone FPGA Family Data Sheet |
| EP1C6T256C7ES | Cyclone FPGA Family Data Sheet |
| EP1C6T256C8ES | Cyclone FPGA Family Data Sheet |
相关代理商/技术参数 |
参数描述 |
|---|---|
| EP1F | 制造商:NEC 制造商全称:NEC 功能描述:HIGH HEAT RESISTIVITY |
| EP1F-B3G1 | 制造商:NEC 制造商全称:NEC 功能描述:HIGH HEAT RESISTIVITY |
| EP1FB3G1S | 制造商:World Products 功能描述:Electromechanical Relay SPDT 25A 12VDC 225Ohm Through Hole |
| EP1F-B3G1T | 制造商:NEC 制造商全称:NEC 功能描述:HIGH HEAT RESISTIVITY |
| EP1F-B3G1TT | 制造商:NEC 制造商全称:NEC 功能描述:HIGH HEAT RESISTIVITY |
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