Abstract:
Systems and methods of managing memory provide for detecting a request to activate a memory portion that is limited in size to a partial page size, where the partial page size is less than a full page size associated with the memory. In one embodiment, detecting the request may include identifying a row address and partial page address associated with the request, where the partial page address indicates that the memory portion is to be limited to the partial page size.
Abstract:
A method, apparatus, and system to enable a partial refresh scheme for DRAM which includes specifying at least a refresh start value, or a refresh start value and a refresh end value, to reduce the number of rows that must be refreshed during a refresh cycle, thus reducing the amount of power consumed during refresh.
Abstract:
Systems and methods of power management provide for controlling the idleness of a processor based on an operating system schedule. The idleness of at least one device is synchronized with the idleness of the processor. Idleness synchronization may involve deferring bus transactions, suspending memory refresh, turning off power to clock sources and turning off power to combinatorial logic during an idle window in the OS schedule.
Abstract:
Thermal management and communication is described in the context of memory modules that contain several memory devices. In one example, the invention includes determining a temperature of a first memory device, the first memory device containing a plurality of memory cells, determining a temperature of a second memory device after determining the temperature of the first memory device, the second memory device containing a plurality of memory cells, and generating an alarm based on an evaluation of the first and the second temperatures. In another example, the invention includes detecting a thermal event on a memory device of a memory module that contains a plurality of memory devices, detecting the state of an event bus of the memory module, and sending an alert on the event bus if the event bus is in an unoccupied state.
Abstract:
A method is described which comprises propagating electronic signals within circuitry comprising a transmitter to select a number of the transmitter's lanes, set a speed for each of the lanes, and set at least a driver supply voltage for each of the lanes. The number and speed determine the transmitter's bandwidth. Power consumed by the transmitter as a consequence of the lane number selection, lane speed setting and driver supply voltage is less than a power that would have been consumed by the transmitter had another available combination of lane number, lane speed and supply voltage been effected for the transmitter.
Abstract:
A codec in a processor-based system handles at least two separate audio programs at the same time. This may be useful, for example, for simultaneously playing one audio program while recording another audio program. A first digital to analog converter pair may be coupled to a first mixer and a second digital to analog converter pair may include a second mixer. Thus, two separate audio programs may be handled at the same time, each by a separate digital to analog converter and mixer.
Abstract:
Systems and methods of managing memory devices provide for reduced power consumption and better thermal management through enhanced memory throttling. In one embodiment a memory unit includes a memory device and a temperature measurement module coupled to the memory device. The temperature measurement device measures the internal temperature of the memory device. Memory throttling can therefore be implemented based on more accurate measurements and with a much shorter response time.
Abstract:
An appliance determines its location, and may determine whether it has moved a distance or to a location which does not meet a local policy guideline. It may notify a central agency of such move, and the central agency may determine whether the move does not meet a remote policy guideline. The central agency may notify law enforcement. The appliance or the central agency may require a re-authentication of the user, and may disable the appliance.