摘要:
A semiconductor device includes a plurality of storage elements each having a plurality of MOS transistors forming a latch circuit, a stored data setting unit configured to write inverted data of nonvolatile data that is read when each of the plurality of storage elements functions as a nonvolatile memory cell to each of the plurality of storage elements, and a voltage application unit configured to store the nonvolatile data in each of the plurality of storage elements by applying a predetermined high voltage higher than a power source voltage applied during normal latch operation to each of the latch circuits.
摘要:
A differential amplifier circuit includes a differential operational amplifier that includes a differential pair circuit and operates based on a constant bias current supplied from a bias current source circuit, and the differential amplifier circuit includes a bias current generator circuit. A current monitor circuit detects two currents flowing through the differential pair circuit in correspondence with differential input voltages inputted to the differential pair circuit, and detects a minimum current of the two currents for a difference voltage of the differential input voltages as a monitored current. A current comparator circuit compares the monitored current with the constant bias current. A current amplifier circuit amplifies a voltage corresponding to the comparison result, and controls currents flowing through the differential pair circuit based on an amplified voltage, and the bias current generator circuit performs negative feedback adaptive control such that the bias current increases as the monitored current decreases.
摘要:
A motion estimation device that reduces computational complexity while maintaining high prediction performance includes: block search means searching for a reference block that most approximates a prediction target block within a search range in a past direction frame F (−) or in a future direction frame F (+); search center setting means setting a search center in F (−) and F (+); and search range setting means setting a search range around the search center in F (−) and F (+), wherein the search range setting means sets a relatively large or small search range when F (0) is a P frame and switches assignment of large and small search ranges sequentially between two neighboring prediction target blocks, and the search center setting means sets a position identified by a motion vector predictor as a search center for a frame to which the relatively small search range is assigned.
摘要:
A TD converter is provided for digitally converting a delay time value into a digital value. In the TD converter, an oscillator circuit part inputs time domain data. A first-state counter circuit part measures a number of waves of an output oscillation waveform from the oscillator circuit part when time domain data is in a first state, and a second-state counter circuit part measures a number of waves of the output oscillation waveform from the oscillator circuit part when the time domain data is in a second state. An output signal generator part generates an output signal based on output count values of the first-state counter circuit part and the second-state counter circuit part, and a frequency control circuit controls the oscillator circuit part to always oscillate and to control an oscillation frequency of the oscillator circuit part.
摘要:
A semiconductor integrated circuit device has a MISFET and a body biasing circuit. The MISFET has a source electrode and a drain electrode of a first conductivity type and a gate electrode, and the MISFET is formed in a well of a second conductivity type. The body biasing circuit generates a voltage in the well by passing a prescribed current in a forward direction into a diode which is formed from the well and the source electrode of the MISFET.
摘要:
An emulation system for data-driven processors which aims at shortening the emulation time by employing parallel processing techniques without increasing overhead. The emulation system emulates virtual data-driven processors by using real data-driven processors. The emulation is performed by dividing the functionality of the processor into a data path and a timing path. In the data path emulation, each virtual packet to be processed in the virtual processor is expressed as a PACKET message, and the processing operation of the virtual packet is evaluated for each functional block. In the timing path emulation, a SEND signal and an ACK signal, to be controlled by a self-timed transfer control mechanism and a gate logic, are expressed as a SEND message and an ACK message, respectively, and stage-to-stage transfer operations of the SEND signal and the ACK signal are evaluated.
摘要:
A semiconductor integrated circuit device, having a plurality of processing elements accommodated on a single semiconductor chip, has a latch circuit and a selecting circuit. The latch circuit is provided at an output of each of the processing elements. The selecting circuit selects an input source from a group consisting of upper, lower, left, and right processing elements and a zero signal.
摘要:
A voltage-to-current conversion circuit composed of MOSFETs of the same polarity and an OTA with Rail-to-Rail with a simple configuration that uses the same have been disclosed. The voltage-to-current conversion circuit comprises a first MOSFET, to which a fixed drain-source voltage is applied all the time, and which generates a first current signal for an input voltage, a second MOSFET, which has the same polarity as that of the first MOSFET, to which the fixed drain-source voltage is applied all the time, and which generates a second current signal complementary to the first current signal for the input voltage, and a difference current operation circuit that performs the operation of subtraction between the first current signal and the second current signal, thereby an output current is generated in accordance with the input voltage.
摘要:
The present invention includes calculating an inter-wiring capacitance from process variables including a structural variable and a material constant of each interlayer insulating film in a multi-wiring structural including a first wiring layer, a second wiring layer having a pluraltiy of pitch wirings with a width W arranged at a pitch P, a third wiring layer and a pluraltiy of interlayer insulating films which insulate and separate the first to third wiring layers from each other, modeling a function expression in which the process variables are determined as variables and the inter-wiring capacitance is determiend as a response variable from the relationship between the obtained inter-wiring capacitance and the process variables, creating actual multi-layer wiring structures and measuring an inter-wiring capacitance from each created multi-layer wiring structure, and identifying the process variables of the actually formed multi-layer wiring structure from the measured inter-wiring capacitances based on the modeled function expression.
摘要:
Evaluating electrical properties of a semiconductor device by measuring and analyzing a junction capacitance of a semiconductor provided in the semiconductor device and a transient change of the junction capacitance while applying an X-ray beam to the semiconductor device intermittently, and evaluating a structure and electron states of the semiconductor by measuring and analyzing an energy spectrum of an X-ray beam absorbed into an element present in the semiconductor while applying an X-ray beam to the semiconductor device continuously.