Abstract: Method and system for controlling the state of a system bus during live insertion and removal of a pluggable feature card (FC) by driving control signals, which are transferred over the system bus, to an active signal level, or by driving down level active control signals to a low signal level near ground level. By this mechanism, the system bus becomes immune to signal disturbances and thereby allows pluggable units to be live inserted and removed without causing adverse effects to the system such as a system reset or compromise of data integrity. During live insertion or removal, a Live Insertion Bus Controller (LIBC) acquires access to the system bus through its interface with a System Bus Controller (SBC), after it has been signalled by a live insertion mechanism associated with the FC that the FC is in the process of being live inserted or removed.

Abstract: Method and system for controlling the state of a system bus during live insertion and removal of a pluggable feature card (FC) by driving control signals, which are transferred over the system bus, to an active signal level, or by driving down level active control signals to a low signal level near ground level. By this mechanism, the system bus becomes immune to signal disturbances and thereby allows pluggable units to be live inserted and removed without causing adverse effects to the system such as a system reset or compromise of data integrity. During live insertion or removal, a Live Insertion Bus Controller (LIBC) acquires access to the system bus through its interface with a System Bus Controller (SBC), after it has been signalled by a live insertion mechanism associated with the FC that the FC is in the process of being live inserted or removed.