Electrical computers and digital processing systems: support – Digital data processing system initialization or configuration
Reexamination Certificate
2005-04-12
2005-04-12
Browne, Lynne H. (Department: 2116)
Electrical computers and digital processing systems: support
Digital data processing system initialization or configuration
C713S001000, C713S100000, C713S300000, C713S400000, C713S500000, C713S600000, C709S221000, C709S222000, C709S232000, C709S241000
Reexamination Certificate
active
06880076
ABSTRACT:
Embodiments of the present invention describe a system and method for microprocessor power regulation. An appropriate amount of voltage is provided to a microprocessor based on a voltage identifier (VID) received by a voltage controller from the microprocessor via a serial communication line. A voltage identifier clock signal (VIDClock) is used for the timing of transmission and receipt of data/acknowledgement signals. A guard clock signal (VIDGuard) is provided via a separate guard clock line to prevent potential noise on the clock line from causing a clock signal misidentification, which could cause a wrong value to be received as the VID. VIDGuard is analyzed in relation to ViDClock to verify the value of the clock signal. To verify receipt of the VID data, a voltage identifier acknowledgement line (VIDAck) is transmitted from the voltage regulator to the microprocessor. The acknowledgement signal is checked by a two-part receipt verification, high-to-low and low-to-high.
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Greiner Robert J.
Ma Matthew
Osburn Edward P.
Stapleton Michael
Browne Lynne H.
Intel Corporation
Kenyon & Kenyon
Patel Nitin C.
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