参数资料
型号: EPF10K250A
厂商: Altera Corporation
英文描述: Embedded Programmable Logic Family(FLEX10K嵌入式可编程逻辑系列)
中文描述: 嵌入式可编程逻辑系列(FLEX10K嵌入式可编程逻辑系列)
文件页数: 11/138页
文件大小: 2115K
代理商: EPF10K250A
Altera Corporation
11
FLEX 10K Embedded Programmable Logic Family Data Sheet
Larger blocks of RAM are created by combining multiple EABs. For
example, two 256
×
8 RAM blocks can be combined to form a
256
×
16 RAM block; two 512
×
4 blocks of RAM can be combined to form
a 512
×
8 RAM block. See
Figure 3
.
Figure 3. Examples of Combining EABs
If necessary, all EABs in a device can be cascaded to form a single RAM
block. EABs can be cascaded to form RAM blocks of up to 2,048 words
without impacting timing. Altera’s MAX+PLUS II software automatically
combines EABs to meet a designer’s RAM specifications.
EABs provide flexible options for driving and controlling clock signals.
Different clocks can be used for the EAB inputs and outputs. Registers can
be independently inserted on the data input, EAB output, or the address
and
WE
inputs. The global signals and the EAB local interconnect can drive
the
WE
signal. The global signals, dedicated clock pins, and EAB local
interconnect can drive the EAB clock signals. Because the LEs drive the
EAB local interconnect, the LEs can control the
signals.
WE
signal or the EAB clock
Each EAB is fed by a row interconnect and can drive out to row and
column interconnects. Each EAB output can drive up to two row channels
and up to two column channels; the unused row channel can be driven by
other LEs. This feature increases the routing resources available for EAB
outputs. See
Figure 4
.
512
× 4
512
× 4
256
×
8
256
×
8
256
×
16
512
×
8
相关PDF资料
PDF描述
EPF10K30 Embedded Programmable Logic Family(FLEX10K嵌入式可编程逻辑系列)
EPF10K200E Embedded Programmable Logic Family(FLEX10KE嵌入式可编程逻辑系列)
EPF10K30E Embedded Programmable Logic Family(FLEX10KE嵌入式可编程逻辑系列)
EPF10K50S Embedded Programmable Logic Family(FLEX10KE嵌入式可编程逻辑系列)
EPF10K130E Embedded Programmable Logic Family(FLEX10KE嵌入式可编程逻辑系列)
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