Abstract:
The present invention discloses a register circuit. The register circuit includes a latch circuit for latching an input data to generate an output data; an input signal selecting circuit, coupled to a non-test data and a test data respectively, for selectively outputting the non-test data or the test data as the input data; a control circuit, coupled to a driving clock, for controlling the latch circuit to latch the input data as the output data according to the driving clock; and a scanning circuit, coupled to the driving clock and the latch circuit, for scanning the output data of the latch circuit to generate a scanning data according to the driving clock.
Abstract:
A method for verifying a branch prediction mechanism and an accessible recording medium for storing a verification program are provided. The method is used for verifying the branch prediction mechanism, such as a branch target buffer (BTB), in a processor. The method comprises providing and executing a verification program in the processor. The verification program comprises at least one branch instruction, which determines whether to use a recursive call and execute the verification program according to a given condition.
Abstract:
A semiconductor layout includes a p substrate, a first semiconductor cell formed over the p substrate, and a second semiconductor cell formed over the p substrate adjacent to the first semiconductor cell. A total height of the first semiconductor cell and the second semiconductor cell is twice a height of a standard semiconductor cell, and the height of the second semiconductor cell is adjusted according to the height of the first semiconductor cell.
Abstract:
A bandgap reference circuit includes a reference current generator for respectively generating a first reference current on a first current path and a second reference current on a second current path, a current mirror for generating a third reference current on a third current path based on the first and second reference currents, an operation amplifier for rendering the first reference current substantially identical to the second reference current and a feedback circuit for rendering a node voltage on the first current path substantially identical to another node voltage on the third current path, so as to eliminate possible errors caused by a channel length modulation effect in the current mirror.
Abstract:
A method for testing power switches using a logic gate tree, the method includes providing a logic gate tree electrically connected to a plurality of power switches, each output node of the plurality of power switches being electrically connected to a corresponding input node of a logic gate of the logic gate tree; applying a pattern of control signals to the plurality of power switches for controlling on-off states of the plurality of power switches; and determining whether an output voltage signal of an output node of the logic gate tree matches a predetermined value corresponding to the pattern of control signals.
Abstract:
A graphics processing system for processing an input image to an output image. A memory buffer includes a number of line buffers for storing the input image. A sampling controller samples sampling points of the input image, scales the input image by a sampling polynomial equation, and generates a scaled image. A window filter filters the scaled image by a filter polynomial equation to generate the output image. A memory controller determines the number of the line buffers according to the sampling polynomial equation and the filter polynomial equation.
Abstract:
A method for accessing discrete data includes transmitting a write command to a memory, determining whether each data following a header of the file needs to be encrypted according to a data format of a file that is to be written into the memory, transmitting the file header and each data following the file header to a logic unit, turning on the logic unit for encrypting the data determined to be encrypted and writing the encrypted data into the memory, turning off the logic unit for writing the data determined not to be encrypted into the memory directly, and sending a first response signal from the memory when the writing of the file is finished.
Abstract:
A driver impedance control apparatus and system for determining the impedance of at least one driver are provided. The driver impedance control apparatus includes a first reference impedance, a second reference impedance, a dummy pull-up array, a dummy pull-down array, a pull-up array control unit and a pull-down array control unit. The pull-up array control unit controls the pull-up impedance of the driver by detecting a voltage from a first voltage divide point between the first reference impedance and the dummy pull-up array. The pull-down array control unit controls the pull-down impedance of the driver by detecting a voltage from a second voltage divide point between the second reference impedance and the dummy pull-down array.
Abstract:
A capacitor structure is provided. The capacitor structure is configured in a substrate. The capacitor structure includes a plurality of electrode sets, at least a first conductive plug and at least a second conductive plug. The electrode sets correspond with each other and are disposed in different layers of the substrate. Each electrode set includes a first electrode and a second electrode surrounding the former. In addition, the first conductive plug and the second conductive plug are disposed between two adjacent electrode sets. First electrodes of two adjacent electrode sets correspond with each other and are electrically connected to each other through the first conductive plug. Similarly, second electrodes of two adjacent electrode sets correspond with each other and are electrically connected to each other through the second conductive plug.
Abstract:
A layout architecture having high-performance and high-density design used in a standard cell integrated circuit is provided. The layout architecture includes a substrate, a first conductor, a second conductor, a third conductor, a fourth conductor, a first device region, a second device region, a third device region and a forth device region. The first device region is arranged adjacent to the first conductor on the substrate. The second device region is arranged adjacent to the first device region on the substrate and is arranged beneath the second conductor. The third device region is arranged adjacent to the second device region on the substrate and is arranged beneath the third conductor. The forth device region is arranged between the third device region and the forth conductor on the substrate.