Device for mapping a set of interrupt signals generated on a fir

Details Device for mapping a set of interrupt signals generated on a fir Device for mapping a set of interrupt signals generated on a fir

1994-01-28

1996-04-09

Pan, Daniel H.

Boots, shoes, and leggings

3642405, 3642412, 3642415, 364242, 3642421, 364DIG1, 364DIG2, G06F 1332, G06F 1314, G06F 1330

Patent

active

055069975

ABSTRACT:
A system for mapping a PCI interrupt signal to any EISA interrupt signal, in which sharing is allowed between PCI interrupts as well as between a PCI interrupt and an EISA interrupt. The actual mapping is performed during the Power On Self Test (POST) procedure, where the computer writes appropriate values into a set of MAP and MASK registers. Each MAP and MASK register corresponds to a PCI interrupt. Thus, by programming the appropriate MAP and MASK register to certain values, the corresponding PCI interrupt can be mapped to the desired EISA interrupt signal. A decode logic then produces a set of final interrupt signals based on the state of the PCI interrupt signals, the MAP and MASK registers, and the EISA interrupt signals. The final interrupt signals are provided to an interrupt controller, which responds to the assertion of the final interrupt signals by asserting an interrupt signal to the microprocessor.

REFERENCES:
patent: 4172284 (1979-10-01), Heinrich et al.
patent: 4779195 (1988-10-01), James
patent: 5101497 (1992-03-01), Culley
patent: 5161228 (1992-11-01), Yasui et al.
patent: 5179704 (1993-01-01), Jibbe et al.
patent: 5218690 (1993-06-01), Boioli et al.
82420/82430 PCISET, ISA and EISA Bridges, Intel Corp., pp. 17, 36, 98-114, 161-171, 211, 286, 322, 345, 369, 416-422, 431, 488-499(1993).

Affiliated with

Also associated with

Rating

Device for mapping a set of interrupt signals generated on a fir does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Device for mapping a set of interrupt signals generated on a fir, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device for mapping a set of interrupt signals generated on a fir will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-146877