Patent ID: 6772269
Filing Date: 2004-08-03
Classification: G06F

Abstract:
A bus switch adapter for conducting data selected from a data taking operation that extracts data being transferred on a data transferring bus to take the data into a module such as an operating circuit and a transmit/receive circuit, a data inserting operation that inserts data output from said module into said data transferring bus, and a data transferring operation that transfers data on said data transferring bus without conducting the extracting and inserting of data, comprising:an input register to which parallel data with a given number of bits to be transferred on said data transferring bus in input and which holds the data, said input register being of a given number of parallel bits; an output register that holds parallel data with a given number of bits and outputs the data to said data transferring bus, said output register being of a given number of parallel bits; an input storing means that temporarily stores the parallel data held by said input register and outputs the data to said module at a given timing; an output storing means that temporarily stores the data output from said module and outputs the data, as the parallel data, to said output register at a given timing; and a control means that controls the outputting of the parallel data from said input register to said input storing means, the outputting of the parallel data from said output storing means to said output register, and the outputting of the parallel data from said input register to said output register, wherein the input register is directly connected to the output register through the control means.