Boots – shoes – and leggings
Patent
1986-10-09
1988-09-06
Eng, David Y.
Boots, shoes, and leggings
G06F 1314, G06F 1336, G06F 1340
Patent
active
047697687
ABSTRACT:
A process for directing an interrupt request from an interrupting device to a selected number of processing devices by a bus. The interrupting device asserts one or more data lines during an interrupt command, each asserted data line corresponding to a selected processing device to which the interrupt command is directed. During an identify transaction, the interrupting device monitors which data line is asserted by a processing device to determine whether the asserted data line corresponds to a processing device selected by a destination mask stored in the interrupting device. Subsequently, one or more data lines are asserted by the interrupting device corresponding to a particular interrupt routine. The interrupting device itself selects particular processing devices, eliminating the need for a central interrupt arbiter. The process allows the interrupting device to seek interrupt servicing from any number of other devices, and to accept service from the first device which is available.
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Bomba Frank C.
Jenkins Stephen R.
Digital Equipment Corporation
Eng David Y.
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