METHOD AND DEVICE FOR ACCOMMODATING SUBSCRIBER CIRCUIT

摘要

PROBLEM TO BE SOLVED: To efficiently accommodate a plurality of subscriber circuits different in transmission rate in a common data bus transmitting system where a higher rank circuit accommodating the subscriber circuits and the subscriber circuit perform one to M transmission. SOLUTION: When the higher rank circuit 10 accommodating the subscriber circuits 11 and the subscriber circuits 11a to 11m realize one to M (M is an integer of >=1) signal transmission through a common data bus 12 using time division, the time area that is previously allocated is band-expanded only in the pertinent time area by increasing a clock frequency, thus the subscriber circuit having the plural types of transmission speeds can be accommodated.