Boots – shoes – and leggings
Patent
1988-12-12
1992-06-02
Shaw, Greth D.
Boots, shoes, and leggings
3642411, 3642412, 3649403, G06F 1324, G06F 1337
Patent
active
051194961
ABSTRACT:
An interrupt processing method and an interrupt processing apparatus provides an end indicative information storing unit for storing an end indicative information of a daisy chain for at least one of a plurality peripheral units, the peripheral unit receiving the indicative information when the peripheral unit receives an acknowledge signal but does not output a request signal, and the peripheral unit outputs a specific chain end state signal to the central processing unit, so that the central processing unit is returned from a response waiting state. Therefore, when an error request signal is produced by noise, etc., delay at a central processing unit is reduced. Further, the daisy chain connection is cut at an optional portion and a request signal from an irrevelant peripheral unit is ignored, so that the efficiency of the processing is improved.
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Fujiyama Hiroyuki
Kuroiwa Kouichi
Nishikawa Sinji
Oyamada Shinji
Shimura Hidetoshi
Fujitsu Limited
Fujitsu Microcomputer Systems Limited
Kulik Paul
Shaw Greth D.
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