Method and system for increasing the load and expansion capabili

Details Method and system for increasing the load and expansion capabili Method and system for increasing the load and expansion capabili

1996-11-20

1999-03-23

An, Meng-Ai T.

395311, 395306, 395309, G06F 1300

Patent

active

058871446

ABSTRACT:
A method and system for expanding the load capabilities of a bus, such as the PCI bus. The system includes a primary bus, a plurality of secondary buses for connecting additional devices, a plurality of in-line switches, an arbiter, and control logic means. The plurality of in-line switches are used for connecting the primary bus to a corresponding one of the secondary buses, each one of the switches having an enable line for receiving a signal to enable or disable the switch. The arbiter is used for receiving requests for control of the primary bus, and for selecting one of the requests as a master for the control. The control logic means is used for enabling and disabling each of the switches, via the corresponding enable line, for connection or disconnection to the primary bus. The control logic means includes means, coupled to the arbiter, for gaining control over the primary bus prior to granting control to the master, and means for transmitting, during control over the primary bus, an enable signal to the switches corresponding to the secondary buses desired to be connected to the primary bus.

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