SYNCHRONIZING METHOD FOR SYSTEM MULTIPLEXING DATA COMMUNICATION SYSTEM AND SYSTEM MULTIPLEXING DATA COMMUNICATION SYSTEM OF THIS METHOD

摘要

PURPOSE:To prevent destruction or overlap of data at the time of system switching by detecting that a prescribed buffer in one data communication system is empty and resetting a corresponding buffer of another data communication system by this detection to load bus control information to this buffer. CONSTITUTION:Data communication systems 100 and 200 are provided which have switch parts 101 having buffers, switch control parts 102 which perform the control in accordance with bus control information, and detecting parts 103 which detect that prescribed buffers are empty. When the prescribed buffer of the system 100 having this constitution is empty, the corresponding buffer of the system 200 is reset, and a synchronous control part 300 is used to load control information to the system. That is, the control part 300 resets the corresponding buffer of the system through a control line 301 and loads control information to the system 200 through a line 302 when the prescribe-d buffer of the system 100 is empty.