摘要:
A chip design methodology. The methodology includes identifying engineering changeable logic, and replacing the identified engineering changeable logic with flexible logic blocks (FLB).
摘要:
A design structure for identifying engineering changeable logic, and replacing the identified engineering changeable logic with flexible logic blocks (FLB). The design structure is embodied in a machine readable medium for designing, manufacturing, or testing an integrated circuit.
摘要:
A system for managing the flow of real time data streams into a data system cache memory is disclosed. The data system includes a central processing unit or micro controller, with a cache memory, which operates at a relatively fast operating speed, near that of the central processing unit. An interrupt controller is provided as well as a quantization timer that disables the interrupts to the CPU during an execution quantization (EQ) period, and allows the interrupts to pass at an EQ boundary. In operation, the quantization timer controls interrupts to occur only when cache load actions are at a specific quantized time, thus ensuring that a given task in the cache will execute or load for a given quantized length of time, and therefore, the possibility of loading a cache randomly only to execute a few instructions is eliminated.
摘要:
N stage tree-type mutliplexers having multiple selects and associated processes for configuring the same are disclosed. The basic multiplexer has control signals which are disbursed throughout the tree for high performance multiplexing. Control signals are distributed such that different signals control at least one stage of the N stage tree and such that the signals controlling the selectors in each of the plurality of selector paths from the input stage to the output stage of the tree are unique. As an enhancement, circuitry for buffering the control signals provided to the input stage of the tree can be used to further reduce the capacitive load thereon.
摘要:
A plurality of digital circuits are manufactured from an identical circuit design. A power controller is operatively connected to the digital circuits, and a non-transitory storage medium is operatively connected to the power controller. The digital circuits are classified into different voltage bins, and each of the voltage bins has a current leakage limit. Each of the digital circuits has been previously tested to operate within a corresponding current leakage limit of a corresponding voltage bin into which each of the digital circuits has been classified. The non-transitory storage medium stores boundaries of the voltage bins as speed-binning test data. The power controller controls power-supply signals applied differently for each of the digital circuits based on which bin each of the digital circuit has been classified and the speed-binning test data.
摘要:
Embodiments of the invention provide a method, system, and program product for predicting a delay of a critical path. In one embodiment, the invention provides a method of predicting a delay of at least one critical path of an integrated circuit, the method comprising: determining a delay of at least one ring oscillator on the integrated circuit; and calculating a predicted delay for the at least one critical path delay based on a delay of components of the critical path at a corner condition, a wire delay of the at least one critical path, a delay of the at least one ring oscillator at a corner condition, and the determined delay of the at least one ring oscillator.
摘要:
A method for source synchronous communication. The method includes dynamically adjusting a delay that is applied to a data signal and a remote clock signal until a delayed remote clock signal is synchronized with a local clock signal, and capturing data from a delayed data signal associated with the delay in a local domain.
摘要:
A chip design methodology. The methodology includes identifying engineering changeable logic, and replacing the identified engineering changeable logic with flexible logic blocks (FLB).
摘要:
A chip design methodology and an integrated circuit chip. The methodology includes providing a plurality of logic gates in a net list, wherein each of the logic gates comprises at least one spare input, synthesizing the net list, and connecting the spare inputs for performing an engineering change late in the design process.
摘要:
In a first aspect of the invention, a first method is provided for aligning signals from a first receiver located in a first clock domain to a second receiver located in a second clock domain. The first method includes the steps of creating a programmable delay element between the first and second receivers, and selectively adding delay via the programmable delay element to the signals until the signals are aligned. Numerous other aspects are provided.