123,123,123

參數(shù)資料

Altera Corporation

FLEX 10K Embedded Programmable Logic Family Data Sheet

LE Operating Modes

The FLEX 10K LE can operate in the following four modes:

Normal mode

Arithmetic mode

Up/down counter mode

Clearable counter mode

Each of these modes uses LE resources differently. In each mode, seven

available inputs to the LE—the four data inputs from the LAB local

interconnect, the feedback from the programmable register, and the

carry-in and cascade-in from the previous LE—are directed to different

destinations to implement the desired logic function. Three inputs to the

LE provide clock, clear, and preset control for the register. Quartus and

MAX+PLUS II software packages, in conjunction with parameterized

functions such as LPM and DesignWare functions, automatically chooses

the appropriate mode for common functions such as counters, adders,

and multipliers. If required, the designer can also create special-purpose

functions which use a specific LE operating mode for optimal

performance.

The architecture provides a synchronous clock enable to the register in all

four modes. Quartus and MAX+PLUS II software packages can set DATA1

to enable the register synchronously, providing easy implementation of

fully synchronous designs.

Figure 9 shows the LE operating modes.

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相關(guān)代理商/技術(shù)參數(shù)	參數(shù)描述
EPF10K100BFC256-1	制造商:Rochester Electronics LLC 功能描述:- Bulk
EPF10K100BFC256-1DX	制造商:未知廠家制造商全稱:未知廠家功能描述:ASIC
EPF10K100BFC256-2	制造商:Rochester Electronics LLC 功能描述:- Bulk
EPF10K100BFC256-2DX	制造商:未知廠家制造商全稱:未知廠家功能描述:ASIC
EPF10K100BFC256-3DX	制造商:未知廠家制造商全稱:未知廠家功能描述:ASIC

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