The CPU part is based on the TMS320C50 Digital Signal Processor (DSP). This system is developed in Lund as a part of a general purpose CPU card, it will e.g. be used on a VME card for the experiment H1 at DESY. The DSP reads the FIFOs, formats the data and stores it in a Dual Port Memory, which is interfaced to FASTBUS. The Dual Port Memory is as well used to download the program via FASTBUS.