| 摘要 |
PROBLEM TO BE SOLVED: To enable adding or removing a component without turning off a power source by selectively connecting at least one slot to a first bus in response to a control signal during the operation of an electronic component and selectively connecting at least one slot to a second bus during the test of the electronic component. SOLUTION: A hot plug device 300 has a hot plug logic module 302 provided with both a hot plug controller 303 and an inter-PCI bridge (P2P) 304. Further, the hot plug device 300 is provided with three-way isolation switches 312 and 314 for individually connecting (and disconnecting) individual slots 206 and 207 to (and from) a primary PCI bus 202 and a secondary local PCI bus 306. The three-way isolation switches 312 and 314 are controlled by a control signal sent onto control lines 316 and 318 by the hot plug controller 303. Therefore, a newly inserted adapter card can be tested before connecting it to the primary PCI bus 202. |
