| 摘要 |
A system and device for performing hot docking and undocking operations in a docking station without the use of a PCI bridge. A combination of CMOS logic circuits functions to generate new PCI signals BUS_IDLE, PCI_EN_REQ, and PCI_SW_EN# which operate during docking and docking functions according to a timing specification. PCI _EN_REQ is a new trigger signal to initiate hot docking or undocking operations, BUS_IDLE indicates the state of the PCI bus (on a portable computer) when no devices are accessing the bus, PCI_SW_EN# functions to open the PCI bus to connect the portable computers PCI bus to the dock PCI bus. A process for using the circuits to accomplish docking and undocking functions is also disclosed.
|
