Bus interface and a data transfer method in the bus interface

摘要

PROBLEM TO BE SOLVED: To enable an easier physical extension of a bus while attaining a stable data transfer at a high speed.;SOLUTION: Data to be transferred is sent and received via a bus 10 in response to a control command from the bus master 10 between applications 20 instructed by the control command. Outputting of the control command by the bus master 10 and sending and receiving of the transfer data in the respective applications 20 are performed based on different clock signals CLK and REF. As a result, stable data transfer at a high speed can be attained and a physical extension of the bus becomes easy compared with the case of sending and receiving transfer data based only on a single clock signal as in the PCI.;COPYRIGHT: (C)2003,JPO