PCI hot plug device and control method using I2C bus

摘要

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a peripheral component interconnection (PCI) hot plug device and includes an operating system 10 such as software Win 95 for operating the system, In order to add or remove a card, a hot plug service unit 20 that operates according to the input of a necessary command and an adapter (not shown) A hot plug controller 40 for receiving a control signal output from the hot plug service unit 20 through an I2C bus and controlling the power supplied to a card to be added or replaced by the user to be shut off or supplied, ), And a table for displaying an external card so that the user can identify any card to be replaced And a power switch unit 52 for switching the bus or the power supply by a control signal output from the hot plug control unit 40 when the adapter card 50 is replaced or removed, It is easy to operate the control circuit and to independently operate the system operation by restoring the data resources on the PCI bus without damaging the card when the card needs to be replaced.