Appeal No. 2001-0594
Application No. 08/929,153
existence of a wake-up event from one chip of the partition to
another.
Representative independent claim 1 is reproduced as follows:
1. A method of providing an indication to a first
integrated circuit that a wake-up event has been detected by a
second integrated circuit, the first and second integrated
circuits being coupled by a bus having signal lines including a
bus clock, a data in signal line and a data out signal line, the
method comprising:
placing the bus in a reduced power consumption state wherein
the signal lines, including the bus clock, are inactive;
signaling the existence of the wake-up event to the first
integrated circuit by changing at least one signal line of the
bus from a first voltage level to a second voltage level while
the bus clock is inactive, in response to the wake-up event
detected by the second integrated circuit;
changing the bus from the reduced power consumption state to
a normal power consumption state in response to the one signal
line being at the second voltage level, the normal power
consumption state including the bus clock being active; and
operating the bus in the normal power consumption state in
which the signal lines transmit information in synchronism with
the bus clock.
The examiner relies on the following reference:
Walsh et al. [Walsh] 5,835,733 Nov. 10, 1998
(filed Dec. 22, 1994)
Claims 1-19, 21-23, 25 and 26 stand rejected under 35 U.S.C.
102(e) as anticipated by Walsh.
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