摘要:
A low powering apparatus for automatic reduction of power in active and standby modes is disclosed. The low powering apparatus includes a state detector, a margins of safety device and a positioning device. The state detector detects a first or second state, such as a standby state and an active state, that has predominated in a recent past. The margins of safety device indicates safe low power margins in correlation to the detected first or second state. The positioning device adjusts the power level according to the outputs of the state detector and margins of safety device. Thus, the low powering apparatus minimizes the power level of a system at the first or second state without compromising full performance of the system.
摘要:
An integrated circuit such as an ASIC device having partitioned functional units with independent threshold voltage control. A first partition is always operated in a normal mode, while subsequent partitions are maintained in a standby mode until a transition is detected at the input of the first partition. The subsequent partitions are switched to the normal mode by lowering the body voltage applied to the devices with each partition. A pulse stretcher is used to keep a partition in a normal mode for a predetermined period of time after the transition is detected.
摘要:
A method and apparatus are provided for managing cache allocation for a plurality of data types in a unified cache having dynamically allocable lines for first type data and for second type data. Cache allocation is managed by counting misses to first type data and misses to second type data in the unified cache, and by determining when a difference between a number of first type data misses and a number of second type data misses crosses a preselected threshold. A replacement algorithm of the unified cache then is adjusted in response to the detected crossing of the preselected threshold, the adjusting step including increasing a replacement priority of the first type data lines in the cache. The replacement algorithm preferably is an LRU algorithm wherein the adjusting step includes incrementing an age indication of the first type data lines. Hardware for implementing the inventive cache allocation management method comprises a miss counter configured to increment its count in response to a miss to first type data signal on a first counter input and to output a first logic state on a first counter output when the counter's count exceeds a first predetermined count. A priority adjustment circuit coupled to the first counter output increases the replacement priority of the first type data relative to the replacement priority of the second type data in response to the first logic state output by the miss counter.
摘要:
A MEMS component is monitored to determine its status. Sensors are deployed to sense the MEMS component and produce detection signals that are analyzed to determine the MEMS component state. An indicator device alerts a user of the status, particularly if the MEMS component has failed. Additionally, the MEMS component monitoring system may be practiced as a design structure encoded on computer readable storage media as part of a circuit design system.
摘要:
A design structure for a circuit that selectively connects an integrated circuit to elements external to the integrated circuits. The circuit includes and input/output element that selectively connects an input/output pin as a function of a power requirement or a signal bandwidth requirement of the integrated circuit. The input/output element includes one or more switching devices that connect the input/output pin to an external element, such as a power supply or external signal path. The input/output element also includes one or more switching devices that connect the input/output pin to an internal element, such as a power network or internal signal line.
摘要:
A method configures a plurality of circuit elements for execution of an application in a first configuration. The method monitors the execution of the application on the plurality of circuit elements to produce monitoring information, using a computerized device, and stores the monitoring information in a storage structure. The method selectively communicates the monitoring information to an external element separate from the computerized device. The external element transforms the first configuration into a second configuration based on the monitoring information. The computerized device receives the second configuration from the external element and reconfigures the plurality of elements into the second configuration.
摘要:
A system for dynamic integrated circuit power distribution and control is disclosed. The system includes an external power consumption target generator configured to generate a power dissipation target for one or more integrated circuits. The system also includes a first integrated circuit that includes an IC power control unit coupled to the external power consumption target generator. The first integrated circuit also includes a first plurality of functional units, each functional unit of the first plurality including a unit power level control and a first power control grid coupling the IC power control unit to one or more of the first plurality of functional units. The IC power control unit is configured to generate a mode control signal which places at least one of plurality of functional units into a first mode of operation based upon the power consumption target.
摘要:
Integrated circuit (IC) system architectures that allow for the reduction of on-chip or across-chip transient noise budgets by providing a means to avoid simultaneous high current demand events from at least two functional logic blocks, i.e., noise contributors, are disclosed. Embodiments of the IC systems architectures include at least one noise event arbiter and at least two noise contributor blocks. A method of scheduling on-clip noise events to avoid simultaneous active transient noise events may include, but is not limited to: the noise event arbiter receiving simultaneously multiple requests-to-operate from multiple noise contributers; the noise event arbiter determining when each noise contributer may execute operations based on a pre-established dI/dt budget; and the noise event arbiter notifying each noise contributer as to when permission is granted to execute its operations.
摘要:
A design structure integrated circuit (IC) system architectures that allow for the reduction of on-chip or across-chip transient noise budgets by providing a means to avoid simultaneous high current demand events from at least two functional logic blocks, i.e., noise contributors, are disclosed. Embodiments of the IC system architectures include at least one noise event arbiter and at least two noise contributor blocks. A method of scheduling on-chip noise events to avoid simultaneous active transient noise events may include, but is not limited to: the noise event arbiter receiving simultaneously multiple requests-to-operate from multiple noise contributors; the noise event arbiter determining when each noise contributor may execute operations based on a pre-established dI/dt budget; and the noise event arbiter notifying each noise contributor as to when permission is granted to execute its operations.
摘要:
Disclosed is a design structure for an on-chip identification circuitry. In one embodiment, pairs of conductors (e.g., metal pads, vias, lines) are formed within one or more metallization layers. The distance between the conductors in each pair is predetermined so that, given known across chip line variations, there is a random chance (i.e., an approximately 50/50 chance) of a short. In another embodiment different masks form first conductors (e.g., metal lines separated by varying distances and having different widths) and second conductors (e.g., metal vias separated by varying distances and having equal widths). The first and second conductors alternate across the chip. Due to the different separation distances and widths of the first conductors, the different separation distances of the second conductors and, random mask alignment variations, each first conductor can short to up to two second conductors. In each embodiment the resulting pattern of shorts and opens, can be used as an on-chip identifier or private key.