摘要:
A microprocessor has a low-power mode and a non-low power mode. The microprocessor includes a processor core for executing instructions provided to the microprocessor and a clock providing a clock signal, which in the non-low power mode has a first frequency and in the low power mode has a second frequency lower than the first frequency. A hardware timer is present, for scheduling an execution of an event by the microprocessor at a future point in time. The hardware timer is connected to the clock for determining a period of time between a current point in time and a point in time the event based on a number of clock cycles of the clock signal. A timer controller can determine, when the data processing system switches from the low power mode to the non-low power mode, a number of clock cycles of a clock signal with the first frequency that corresponds to a low-power mode period during which the microprocessor has been in the low power mode and adjusting the hardware timer based on the determined number.
摘要:
Clock pulses of a variable speed clock are adjusted relative to system utilization. A load monitor periodically collects sensor measurements of resources and based on the sensor measurements, the load monitor adjusts the clock speed up or down.
摘要:
Embodiments of the present invention relate to a signal order-preserving method and apparatus. When data of a request signal that comes from a corresponding first upstream device is written into a first first input first output (FIFO) memory, invalid data is written into a second FIFO memory corresponding to a second upstream device in a same clock cycle; and the data of the request signal is read from the first FIFO memory, the invalid data is read from the second FIFO memory, the invalid data is discarded, and the data of the request signal is conveyed to a downstream device. Through the signal order-preserving method and apparatus in the embodiments of the present invention, the coupling extent between devices on which there is an order-preserving requirement is reduced while signal order-preserving is achieved.
摘要:
A deep idle mode for electronic devices is described, which provides significant power savings while allowing significantly shorter resumption times than experienced with a suspend mode. During deep idle mode, a root clock such as the microcontroller unit phase-locked loop (MPLL) is scaled or gated entirely and other clocks such as the processor, memory, and general purpose timer clocks may be scaled. To maintain functionality while these clocks are scaled or gated, an external clock source couples to the processor, memory, and a general purpose timer.
摘要:
Disclosed are a method and a computer program storage product for dynamically stabilizing a stream processing system. The method includes receiving at least one computing resource allocation target. A plurality of downstream processing elements and an upstream processing element are associated with at least one input buffer. Each of the downstream processing elements consumes data packets produced by the upstream processing element received on an output stream associated with the upstream processing element. A fastest input rate among each downstream processing element in the plurality of downstream processing elements is identified. An output rate of the upstream processing element is set to the fastest input rate that has been determined for the plurality of downstream processing elements.
摘要:
A storage apparatus including a nonvolatile storage section and a control section controlling the nonvolatile storage section, wherein the control section has a detection circuit detecting floating state in at least one of power supply terminal connected to host side power supply terminal to which a power supply voltage is supplied from the host device, and ground terminal connected to host side ground terminal to which a ground voltage is supplied from the host device and a mask process section performing a mask process of the system clock that is used to control the nonvolatile storage section, wherein the mask process section masks the system clock if the floating state is detected by the detection circuit.
摘要:
A device applies synchronous clocking across a first component and a second component of the device, and designates a particular serial link, from a group of serial links, as a master serial link. The device also designates the remaining serial links as slave serial links, provides, via the master serial link, an encoded data stream, and provides, via the slave serial links, un-encoded and scrambled data streams.
摘要:
This invention provides a user authentication control device, a user authentication device, a data processing device, and a user authentication control method and the like that control an authentication interval and an authentication effective period in accordance with a communication speed so as to make it possible to keep a balance between user convenience and safety. The user authentication device, which controls an authentication effective period for a user authentication device of a data processing device connected with a server device through a network, is provided with a bandwidth acquiring unit for acquiring a communication speed of the network and an effective period determining unit for determining an authentication effective period in accordance with the communication speed.
摘要:
A method for reducing power consumption of a computer system in a working state is provided. The computer system comprises a processor, a memory and a chipset, and the processor is connected with the chipset through a processor bus. The method comprises classifying the power saving level of the computer system into a predetermined number of power saving modes, checking at least one power saving mode transition condition to determine whether to automatically raise the power saving mode of the computer system, and raising the power saving mode of the computer system by lowering a first voltage supply level of the chipset and a second voltage supply level of the memory and decreasing a first working frequency of the processor bus and a second working frequency of the memory. The power consumption of the computer system is further reduced in comparison with a normal working state when the power saving mode of the computer system is further raised.
摘要:
A gearbox is placed between two clock domains to allow data to be transferred from one domain to the other. Although the two domains may operate at the same clock frequency, typically one domain has a faster clock speed than the other. The gearbox is disposed between the two clock domains to control timing of data transfer from one to the other, by selecting a pattern which identifies when data is made transparent for the transfer. The gearbox allows a number of clock ratios to be selected, so that a particular clock ratio between the two domains may be readily selected in the gearbox for the data transfer.