CONTROL ARRANGEMENT FOR TRANSFERRING DATA FROM MINICOMPUTER TO COMMUNICATION TERMINAL LINES

This invention can be applied in long-distance data processing systems. The proposed device comprises of an arithmetical logic device, check code calculation block, basic line counter, memory of indirectly addressed registers, block of connecting registers with a "common bus" interface, input buffer memory, modem control blocks, tact control block and a micro-program block. The micro-program block provides analysis of every subsequent microinstruction and consists of a micro-program memory, micro-construction word register /RMK/, a multi-plexor for conditional branch, RMK memory decoder block, and micro-program control block. The device is equipped with a diagnostic panel that enables the visual checking of the RMK content, memory of indirectly addressed registers, connecting block control registers with a common bus interface. The tact control block enables the autonomous diagnostics during the removal of the eventual device errors.