Electrical computers and digital processing systems: support – Clock control of data processing system – component – or data... – Inhibiting timing generator or component
Reexamination Certificate
2006-01-10
2006-01-10
Browne, Lynne H. (Department: 2116)
Electrical computers and digital processing systems: support
Clock control of data processing system, component, or data...
Inhibiting timing generator or component
C713S320000
Reexamination Certificate
active
06986074
ABSTRACT:
A system-on-chip (SOC) includes a power down circuit. Within the SOC are several circuit blocks, each of them operating responsive to a local clock signal. A system clock is coupled to the circuit blocks for providing a system clock signal that functions as the local clock signal for selected circuit blocks. A power control manager provides a signal that at least partially determines whether the system clock will act as the local clock for some of the circuit blocks. Within the circuit blocks is a shutdown circuit that selectively prevents the system clock signal from functioning as the local clock signal in those circuit blocks that receive the shutdown signal, but the shutdown circuit only operates after both the signal to shutdown is received from the power control manager and after the circuit block has, in fact, shutdown.
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Alia Michele
Carrano Michele
Pistritto Carmelo
Allen Dyer Doppelt Milbrath & Gilchrist, P.A.
Browne Lynne H.
Chen Tse
Jorgenson Lisa K.
STMicroelectronics S.r.l.
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