EP1M350 datasheet(17/86 Pages) ALTERA

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Altera Corporation

Mercury Programmable Logic Device Family Data Sheet

Figure 6. LAB-Wide Control Signals

Logic Element

The LE, the smallest unit of logic in the Mercury architecture, is compact

and provides efficient logic usage. Each LE contains a four-input LUT,

which is a function generator that can quickly implement any function of

four variables. In addition, each LE contains a programmable register and

carry chain with carry select look ahead capability. Each LE drives all

interconnect types: local interconnect, row and priority row interconnect,

column and priority column interconnect, leap lines, and RapidLAB

interconnect. Each LE also has the ability to drive its combinatorial output

directly to the next LE in the LAB using FastLUT connections. See

Figure 7.

SYNCCLR

or LABCLK2

ASYNCLOAD

or LABPRE

LABCLK1

SYNCLOAD

or LABCLKENA2

LABCLR

LABCLKENA1

Dedicated

Clocks

Fast Global

Signals

Local

Interconnect

Local

Interconnect

Local

Interconnect

Local

Interconnect

Row Global

Signals

EP1M350 数据表(PDF) 17 Page - Altera Corporation

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