Method and apparatus for improving bus bandwidth by reducing red

Details Method and apparatus for improving bus bandwidth by reducing red Method and apparatus for improving bus bandwidth by reducing red

1995-12-18

1998-06-09

Sheikh, Ayaz R.

395287, 395280, 395293, 395292, G06F 1300

Patent

active

057649294

ABSTRACT:
The present invention accomplishes bus utilization optimization by enabling each device to signal another bus device when it has completion information in its output buffers. For example, when an I/O device attempts to read data from a system device, a RETRY may be signalled to the requesting I/O device. A control signal is sent from the bridge to the requesting I/O device when there is completion data in its output buffers. In this manner, the present invention eliminates or reduces the multiple RETRY actions by the I/O device, since it will not attempt to obtain the data until it receives the control signal from the bridge.

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