Development of the Compact Processing Module for the ATLAS Tile Calorimeter Phase-II Upgrade

he LHC Phase II Upgrade of the ATLAS Tile Calorimeter (TileCal) implies a new readout and trigger architecture. The on-detector readout electronics will transmit detector data to 32 Tile PreProcessor (TilePPr) boards in the counting rooms at the LHC frequency, sending selected data to the ATLAS FELIX and interface with the trigger systems. Each TilePPr is composed of four Compact Processing Modules (CPM) with single-width AMC form factor and one full-size ATCA carrier with 4 slots. This contribution presents the design of the CPMs and first experiences, and reviews the results of the TilePPr prototype for the TileCal Demonstrator programme.