XL-100S microprogrammable processor

The XL-100S microprogrammable processor providing the multiprocessor operation mode in the XL system crate is described. The processor meets the EUR 6500 CAMAC standards, address up to 4 Mbyte memory, and interacts with 7 CAMAC branchas. Eight external requests initiate operations preset by a sequence of microcommands in a memory of the capacity up to 64 kwords of 32-Git. The microprocessor architecture allows one to emulate commands of the majority of mini- or micro-computers, including floating point operations. The XL-100S processor may be used in various branches of experimental physics: for physical experiment apparatus control, fast selection of useful physical events, organization of the of input/output operations, organization of direct assess to memory included, etc. The Am2900 microprocessor set is used as an elementary base. The device is made in the form of a single width CAMAC module