EP2C15AU208C8N 데이터 시트보기 (PDF) - Altera Corporation

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EP2C15AU208C8N

Section I. Cyclone II Device Family Data Sheet

Altera Corporation 

Cyclone II Architecture

Logic Array

Blocks

Each LAB consists of the following:

■ 16 LEs

■ LAB control signals

■ LE carry chains

■ Register chains

■ Local interconnect

The local interconnect transfers signals between LEs in the same LAB.

Register chain connections transfer the output of one LE’s register to the

adjacent LE’s register within an LAB. The Quartus II Compiler places

associated logic within an LAB or adjacent LABs, allowing the use of

local, and register chain connections for performance and area efficiency.

Figure 2–5 shows the Cyclone II LAB.

Figure 2–5. Cyclone II LAB Structure

Row Interconnect

Direct link

interconnect

from adjacent

block

Direct link

interconnect

to adjacent

block

LAB

Local Interconnect

Column

Interconnect

Direct link

interconnect

from adjacent

block

Direct link

interconnect

to adjacent

block

Altera Corporation

February 2007

2–7

Cyclone II Device Handbook, Volume 1

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