Local And Direct Link Interconnects - Altera Cyclone V Device Handbook

CV-52001
2014.01.10
Figure 1-2: LAB and MLAB Structure for Cyclone V Devices

Local and Direct Link Interconnects

Each LAB can drive 30 ALMs through fast-local and direct-link interconnects. Ten ALMs are in any given
LAB and ten ALMs are in each of the adjacent LABs.
The local interconnect can drive ALMs in the same LAB using column and row interconnects and ALM
outputs in the same LAB.
Neighboring LABs, MLABs, M10K blocks, or digital signal processing (DSP) blocks from the left or right
can also drive the LAB's local interconnect using the direct link connection.
The direct link connection feature minimizes the use of row and column interconnects, providing higher
performance and flexibility.
Logic Array Blocks and Adaptive Logic Modules in Cyclone V Devices
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LUT-Based-32 x 2
Simple Dual-Port SRAM
LUT-Based-32 x 2
Simple Dual-Port SRAM
You can use an MLAB
ALM as a regular LAB
LUT-Based-32 x 2
ALM or configure it as a
Simple Dual-Port SRAM
dual-port SRAM.
LUT-Based-32 x 2
Simple Dual-Port SRAM
LUT-Based-32 x 2
Simple Dual-Port SRAM
LAB Control Block
LUT-Based-32 x 2
Simple Dual-Port SRAM
LUT-Based-32 x 2
Simple Dual-Port SRAM
You can use an MLAB
ALM as a regular LAB
LUT-Based-32 x 2
ALM or configure it as a
Simple Dual-Port SRAM
dual-port SRAM.
LUT-Based-32 x 2
Simple Dual-Port SRAM
LUT-Based-32 x 2
Simple Dual-Port SRAM
Local and Direct Link Interconnects
LAB Control Block
MLAB
ALM
ALM
ALM
ALM
ALM
ALM
ALM
ALM
ALM
ALM
LAB
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