System for signaling serialized interrupts using message...

Details System for signaling serialized interrupts using message... System for signaling serialized interrupts using message...

2006-03-14

2006-03-14

Dang, Khanh (Department: 2111)

Electrical computers and digital data processing systems: input/

Interrupt processing

C710S306000, C710S311000

Reexamination Certificate

active

07013358

ABSTRACT:
The present invention provides a system for signaling legacy serialized interrupts within a PCI-Express environment, using message signaled interrupts. The system provides structures and methods that interface a PCI environment (106) with a PCI-Express environment (104). The present invention provides a PCI to PCI-Express bridge device (110) that is communicatively linked (112, 114) to the PCI and PCI-Express environments. The bridge device comprises a translation function (116) that is communicatively linked (120, 122) to the PCI and PCI-Express environments. A serialized interrupt is signaled from the PCI environment, and the translation function generates a message signaled interrupt within the PCI-Express environment based on that serialized interrupt.

REFERENCES:
patent: 6622191 (2003-09-01), Nakamura
patent: 2004/0123014 (2004-06-01), Schaefer et al.
Definitions of PCI-Express and PCI-X.
iNTEL 41210 Product Brief.
41210 Bridge IC, Arrow Northern Europe.
Serial IRQ Support fro PCI systems, Revision 6, Compaq.
PCI-SIG, “PCI-Express™ Base Specification Revision 1.0a”, Apr. 15, 2003.

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