DATA TRANSFERRING DEVICE

PROBLEM TO BE SOLVED: To provide a method and device for transferring data by using an on-chip bus. SOLUTION: A data transaction constituted of an address and a data packet is transferred on an on-chip bus. The on-chip bus is a two-wire system serial bus constituted of an address line and a data line through which plural satellites 311-313 are connected to a central source like a daisy chain. Each on-chip satellite is related with a specific identifier. In response to judgment that the transaction is accepted by the satellites 311-313 (judgment based on the address of an address packet for positively comparing the specific identifiers of the satellites), the address packet is changed so that a positive response can be applied to the reception of the address packet to the central source of the transaction.