Logic Array Blocks and Adaptive Logic Modules User Guide: Agilex™ 3 FPGAs and SoCs
ID
846637
Date
4/07/2025
Public
2.2.3.3.1. Carry Chain
The carry chain provides a fast carry function between the dedicated adders in the arithmetic mode.
The 2-bit carry select feature in Agilex™ 3 devices splits the propagation delay of carry chains with the ALM. Carry chains can begin in either the first ALM or the sixth ALM in a LAB. The final carry-out signal is routed to an ALM, where it is fed to local, row, or column interconnects.