Dual-Port memory with reconfigurable structure

In the acquisition system for CMS, the RDPM is a dualport memory (up to 256Mbytes) used to buffer and filter events. The third prototype is currently under study and development. It will be a PCI board with three PCI busses: an input bus to receive data form the DDU, an output bus to send data to the computer through a switch and a control bus (each one with 64-bit @ 33-66MHz to reach the 400MB/s data bandwidth). The board will be built with FPGA components. This is an advantage to reprogram the board to be flexible and to test different events organizations. The third prototype will be integrated in the DAQ system demonstrator