Electrical computers and digital data processing systems: input/ – Interrupt processing
Patent
1996-12-27
1999-09-14
Maung, Zarni
Electrical computers and digital data processing systems: input/
Interrupt processing
710 23, G06F 946
Patent
active
059516690
ABSTRACT:
A computer system in which interrupt signals are serially transmitted from an input/output (I/O) controller is disclosed. The I/O controller initially receives the interrupt signals and then serially transmits them to an interrupt controller where the received interrupt signals are managed. According to the invention, the sequencing by which the interrupt signals are serially transmitted is controlled such that it largely conforms to the sequencing by which the received interrupt signals are processed at the interrupt controller, thereby controlling and reducing latency. The interrupt controller can be a separate integrated circuit chip or integral to another integrated circuit chip of the computer system.
REFERENCES:
patent: 5473757 (1995-12-01), Sexton
patent: 5475854 (1995-12-01), Thomsen et al.
patent: 5634069 (1997-05-01), Hicok et al.
patent: 5671421 (1997-09-01), Kardach et al.
"Serialized IRQ Support for PCI Systems," Version 6.0, Sep. 1, 1995, by Compaq Computer Corp., Cirrus Logic Inc., National Semiconductor Corp., OPTi Inc., Standard Microsystems Corp., Texas Instruments Inc., and VLSI Technology Inc.
Bailey Robert L.
Bird Lesley A.
Kelly James D.
Apple Computer Inc.
Maung Zarni
Ovedovitz David M.
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