参数资料
型号: EP20K60E
厂商: Altera Corporation
英文描述: Programmable Logic Device Family
中文描述: 可编程逻辑器件系列
文件页数: 36/117页
文件大小: 570K
代理商: EP20K60E
36
Altera Corporation
APEX 20K Programmable Logic Device Family Data Sheet
f
Note 119 (Implementing High-Speed Search Applications with APEX CAM).
For more information on APEX 20KE devices and CAM, see
Application
Driving Signals to the ESB
ESBs provide flexible options for driving control signals. Different clocks
can be used for the ESB inputs and outputs. Registers can be inserted
independently on the data input, data output, read address, write
address,
WE
, and
RE
signals. The global signals and the local interconnect
can drive the
WE
and
RE
signals. The global signals, dedicated clock pins,
and local interconnect can drive the ESB clock signals. Because the LEs
drive the local interconnect, the LEs can control the
WE
and
RE
signals and
the ESB clock, clock enable, and asynchronous clear signals.
Figure 24
shows the ESB control signal generation logic.
Figure 24. ESB Control Signal Generation
Dedicated
Clocks
Note to
Figure 24
:
(1)
APEX 20KE devices have four dedicated clocks.
An ESB is fed by the local interconnect, which is driven by adjacent LEs
(for high-speed connection to the ESB) or the MegaLAB interconnect. The
ESB can drive the local, MegaLAB, or FastTrack Interconnect routing
structure to drive LEs and IOEs in the same MegaLAB structure or
anywhere in the device.
RDEN
WREN
INCLOCK
INCLKENA
OUTCLOCK
OUTCLKENA
Global
Signals
Local
Interconnect
Local
Interconnect
Local
Interconnect
Local
Interconnect
2 or 4
4
Local
Interconnect
Local
Interconnect
INCLR OUTCLR
(1)
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EP20K60EBC356-1ES 制造商:未知厂家 制造商全称:未知厂家 功能描述:FPGA
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EP20K60EBC356-2ES 制造商:未知厂家 制造商全称:未知厂家 功能描述:FPGA