ep2c35 Altera Corporation, ep2c35 Datasheet - Page 19

• Manufacturer Part Number: ep2c35
• Description: Cyclone Ii Device Family Data Sheet
• Manufacturer: Altera Corporation

Logic Array
Blocks
Figure 2–5. Cyclone II LAB Structure
Altera Corporation
February 2007
Direct link
interconnect
from adjacent
block
Direct link
interconnect
to adjacent
block
Each LAB consists of the following:
■
■
■
■
■
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
16 LEs
LAB control signals
LE carry chains
Register chains
Local interconnect
LAB
shows the Cyclone II LAB.
Local Interconnect
Cyclone II Device Handbook, Volume 1
Row Interconnect
Cyclone II Architecture
Direct link
interconnect
from adjacent
block
Direct link
interconnect
to adjacent
block
Column
Interconnect
2–7