PERIPHERAL COMPONENT INTERCONNECT DEVICE AND ELECTRONIC DEVICE WITH PERIPHERAL COMPONENT INTERCONNECT PORT

摘要

An electronic device includes a peripheral component interface (PCI) port, a first storage unit storing a basic input/output system (BIOS), a second storage unit storing a relationship table defining a number of register values and PCI setting information, and a processing unit. The PCI port is used to connect to at least one PCI device. The first storage unit stores a basic input/output system (BIOS). The processing unit runs the BIOS when the electronic device is starting up. When the BIOS is running, the BIOS reads a register value from the PCI device connected to the PCI port and determines a setting information of the PCI port corresponding to the register value according to the relationship table. The BIOS then sets the pins the PCI port according to the determined setting information.

主权项

1. An electronic device comprising:
a peripheral component interface (PCI) port configured to connect to at least one PCI device; a first storage unit storing a basic input/output system (BIOS); a second storage unit storing a relationship table defining a plurality of register values and PCI setting information; and a processing unit connected to the PCI port, the first storage unit, and the second storage unit, and configured to communicate with the PCI device connected to the PCI port, and run the BIOS when the electronic device is starting up; wherein, when the BIOS is running, the BIOS scans the PCI port to determine whether the PCI port is connected to the at least one PCI device, and then determines whether the PCI device stores a register value when determining the PCI port connects the PCI device; when the PCI device stores the register value, the BIOS reads the register value from the PCI device connected to the PCI port and determines a setting information of the PCI port corresponding to the register value according to the relationship table, and the BIOS further sets the pins of the PCI port according to the determined setting information.