Electrical computers and digital processing systems: support – Computer power control – Power conservation
Reexamination Certificate
2006-06-06
2006-06-06
Myers, Paul R. (Department: 2112)
Electrical computers and digital processing systems: support
Computer power control
Power conservation
Reexamination Certificate
active
07058834
ABSTRACT:
A scan-based state save and restore method and system for inactive state power reduction. An integrated circuit that has an inactive state has normal circuitry and scan circuitry. Upon receipt of a sleep signal, the state of the normal circuitry is accessed by employing scan circuitry. The state is then stored in a memory. The power is disconnected from the normal circuitry. Upon wake-up, the normal circuitry is re-connected to the power. The state of the circuit is accessed from the memory and restored to the normal circuitry by employing scan circuitry.
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Intel XScale Microarchitecture Technical Summary 2000.
McDougal Jay Dean
Woods Paul Richard
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