Apparatus for preventing double drive occurrences on a common bu

Details Apparatus for preventing double drive occurrences on a common bu Apparatus for preventing double drive occurrences on a common bu

1993-12-14

1995-05-23

Lee, Thomas C.

Boots, shoes, and leggings

3649504, 3642715, 3642401, 395275, 395325, 395725, G06F 1310, G06F 1314, G06F 1336

Patent

active

054189357

ABSTRACT:
In a digital data transfer system whereby a plurality of driver units are all connected to and share the same common system bus, there is provided control gating logic which will prevent the enablement of a subsequent driver for a fixed delay time until it is certain that the previous driver has been shut down. Due to switching time variations in driving units, a fixed delay time is set to function in a first driver that is beginning its data transmission to be sure that another driver which was previously transmitting data has been completely turned-off before the first driver gains access to the commonly shared bus. This ensures that no two drivers can simultaneously be driving data onto the system bus at the same time which would obviate the integrity of data transmitted.

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patent: 5097483 (1992-03-01), Bechtolsheim

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