EP3SE50F780I3N Altera, EP3SE50F780I3N Datasheet - Page 37

• Manufacturer Part Number: EP3SE50F780I3N
• Description: Stratix III
• Manufacturer: Altera

Figure 2–2. Stratix III LAB and MLAB Structure
Note to
(1)
Altera Corporation
October 2007
You can use MLAB ALM as a regular LAB ALM or configure it as a dual-port SRAM, as shown.
Figure
2–2:
Simple dual port SRAM
Simple dual port SRAM
Simple dual port SRAM
Simple dual port SRAM
Simple dual port SRAM
Simple dual port SRAM
Simple dual port SRAM
Simple dual port SRAM
Simple dual port SRAM
Simple dual port SRAM
LAB Control Block
LUT-based-64 x 1
LUT-based-64 x 1
LUT-based-64 x 1
LUT-based-64 x 1
LUT-based-64 x 1
LUT-based-64 x 1
LUT-based-64 x 1
LUT-based-64 x 1
LUT-based-64 x 1
LUT-based-64 x 1
LAB Interconnects
The LAB local interconnect can drive ALMs in the same LAB. It is driven
by column and row interconnects and ALM outputs in the same LAB.
Neighboring LABs/MLABs, M9K RAM blocks, M144K blocks, or DSP
blocks from the left and right can also drive a LAB's local interconnect
through the direct link connection. The direct link connection feature
minimizes the use of row and column interconnects, providing higher
performance and flexibility. Each ALM can drive 30 ALMs through fast
local and direct link interconnects.
MLAB
Logic Array Blocks and Adaptive Logic Modules in Stratix III Devices
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
LAB Control Block
LAB
ALM
ALM
ALM
ALM
ALM
ALM
ALM
ALM
ALM
ALM
Stratix III Device Handbook, Volume 1
2–3