Patent ID: 6880061
Filing Date: 2005-04-12
Classification: G06F

Abstract:
1. A system for monitoring data transmitted between first and second components of an electronic machine, the first and second components being connected to one another by a transmission line having a terminated end connected to the second component and a non-terminated end, said system comprising: a mirror component that operates in the same manner as the second component; a data storage unit operable to store incoming data in chronological order; and a transfer unit separately provided from the first component and operable to receive first data comprising read and write control data and write data transmitted from the first component to the second component during read and write operations from and to the second component and to transfer said first data to said mirror component and said data storage unit, said transfer unit being further operable to receive second data comprising mirror read data supplied from said mirror component corresponding to read data obtained from the second component during read operations and to transfer said second data to said data storage unit, said incoming data comprising said first and second data; said transfer unit and said mirror component being connected to one another through a transmission line having a terminated end connected to said mirror component and a non-terminated end.