FLX-182, the hardware platform for ATLAS readout during High Luminosity LHC

FLX-182 is a PCIe card designed for the readout system of the ATLAS experiment for the High Luminosity phase of LHC starting in 2029. FLX-182 is responsible for decoding and transferring data from the front-ends into the host server memory, and receiving and distributing timing, trigger and control information. About six hundred FLX-182 will sustain 4.6 TB/s of total throughput at 1 MHz data rate. FLX-182 is equipped with a Xilinx Versal Prime VM1802 SoC, a PCIe Gen4x16 interface and can operate up to 24 optical links at 25 Gb/s. FLX-182 runs firmware capable of interfacing with all different subdetectors.