Current-based contention detection and handling system

Details Current-based contention detection and handling system Current-based contention detection and handling system

1997-04-10

1999-08-24

Beausoliel, Jr., Robert W.

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

G06F 1100

Patent

active

059419970

ABSTRACT:
A current-based contention detection and handling system, upon detection of excessive current being applied to a communicating subsystem, avoids potential system damage by preventing continued excessive current. In a preferred embodiment, a current sensor and a subsystem control unit are provided in each communicating subsystem. The subsystem control unit preferably includes a latch and control logic. A system coordinator is further preferably provided for directing recovery. Upon current sensor detection of excessive current to a subsystem bus driver, the subsystem control unit disables the bus driver and asserts an interrupt and fault line to alert the system coordinator. The system coordinator confirms the alert and, upon confirmation, a preferably resets both the subsystem and the subsystem control unit. The subsystem control unit preferably includes a latch and control logic.

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patent: 5867645 (1999-02-01), Olarig

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