摘要:
A semiconductor memory device includes a memory cell array having plural memory cells that require a refresh operation when retaining data; a read/write control unit that performs read-access or write-access of memory cell address specified for the memory cell array based on instructions from the outside; a refresh control unit that performs hidden-refresh of memory cells without control from the outside; and a schedule control unit that makes the refresh control unit perform hidden-refresh after the read/write control unit read-accesses the memory cell array, and that also makes the refresh control unit perform hidden-refresh before the read/write access control unit performs write-access.
摘要:
A semiconductor memory device has: memory blocks; and a local bus connected to the memory blocks. Each memory block has: switches respectively provided between bit line pairs and the local bus and each of which is turned ON in response to a selection signal; a dummy local bus; first and second control circuits. The local bus and the dummy local bus are precharged to a first potential before a read operation. In the read operation, the first control circuit outputs the selection signal to a selected switch to electrically connect a selected bit line pair and the local bus, while the second control circuit supplies a second potential lower than the first potential to the dummy local bus. The first control circuit stops outputting the selection signal when a potential of the dummy local bus is decreased to a predetermined set potential that is between the first and second potentials.
摘要:
Disclosed is a method of forming a thermal oxide film on a silicon single crystal wafer, which includes throwing the silicon single wafer into a heat treatment furnace; elevating temperature of the heat treatment furnace up to a temperature T1 where a thermal oxide film is formed to form a thermal oxide film having a thickness d1; subsequently lowering the temperature of the heat treatment furnace down to a temperature lower than the temperature T1; and thereafter elevating the temperature of the heat treatment furnace up to a temperature T2 higher than the temperature T1 to additionally form a thermal oxide film having a thickness d2 thicker than the thickness d1. Thus, there is provided a thermal oxide film formation method to suppress occurrence of slip dislocation and/or crack of the silicon single wafer during formation of the thermal oxide film.
摘要:
Provided is a semiconductor integrated device including a semiconductor memory circuit and a peripheral circuit of the semiconductor memory circuit. The peripheral circuit includes a first transistor having a first voltage as a breakdown voltage of a gate oxide film. The semiconductor memory circuit includes a pair of bit lines, one of the pair of bit lines being connected to a gate transistor of a memory cell, and a precharge circuit that includes a transistor having a breakdown voltage substantially equal to that of the first transistor, and precharges the pair of bit lines to a predetermined voltage in response to an activation signal. The activation signal of the precharge circuit is a second voltage higher than the first voltage.
摘要:
An exemplary embodiment provides a game system. The game system includes an operation apparatus and an information processing unit. The information processing unit includes a viewpoint mode switching unit for setting a first viewpoint mode for displaying on the display portion a display image picked up based on a position and a direction of image pick-up of a first virtual camera in a virtual space on a game when position data of the operation apparatus obtained by the sensor portion is in a first range and setting a second viewpoint mode for displaying on the display portion a display image picked up based on a position and a direction of image pick-up of a second virtual camera when the position data is in a second range, and a game processing unit for performing game processing in accordance with the operation input accepted by the operation portion.
摘要:
A game system moves a player character in a virtual game space in accordance with an operation by a player. Further, the player character's moving amount per predetermined unit time is detected at each predetermined time interval. A predetermined parameter (gage amount) value is calculated at each predetermined time interval based on the moving amount detected at each predetermined time interval. Also, the game system adds the predetermined parameter value calculated at each predetermined time interval for accumulation. In response to a predetermined operation performed by the player, the game system causes the player character to perform a predetermined motion (e.g., special shot) on a condition such that a value obtained as a result of the addition reaches a predetermined value.
摘要:
A contactless charging system is made up of an electronic device and a contactless charger 200 that recharges the electronic device in a contactless manner. The electronic device transmits a full charge command indicating completion of charge. Upon receipt of the full charge command, the contactless charger shifts to a charge stop state in which charge of the electronic device is not performed. In the charge stop state, the contactless charger generates a load check signal for checking whether or not the electronic device is placed in the contactless charger in a rechargeable state, and transmits the signal. Further, the contactless charger also generates a charge restart check command for checking whether or not the electronic device requests recharge in a charge stop state, and transmits the command.
摘要:
In a print system constituted so as to enable a supplying of sheets from a printing apparatus to a sheet processing apparatus, wherein the printing apparatus having a print unit that executes a print process of data of a job stored in a storage unit can store data of a plurality of jobs, wherein the sheet processing apparatus having a sheet processing unit that executes a sheet processing operation to sheets of job printed by the printing apparatus, a controller unit allows the print unit to execute a print process of a second job required before a sheet process of the second job in case that a plurality of jobs including the second job after a first job are accepted and in case that a sheet process of the first job required after a print process of the first job is in execution by the sheet processing unit.
摘要:
A PCS ECU 20 in a PCS system 10 calculates TTC which is a brake operation timing of a host vehicle, on the basis of the relative velocity Vr between the host vehicle and an object, a predetermined deceleration amount ΔV caused by a brake operation of the host vehicle, and a deceleration a caused by the brake operation of the host vehicle. Thereby, the deceleration amount ΔV caused by the brake operation of the host vehicle is to be a set constant amount regardless of the relative velocity Vr between the host vehicle and the object. Accordingly, it is possible to ensure the deceleration amount ΔV caused by a more appropriate brake operation.
摘要:
Provided is a semiconductor integrated device including a semiconductor memory circuit and a peripheral circuit of the semiconductor memory circuit. The peripheral circuit includes a first transistor having a first voltage as a breakdown voltage of a gate oxide film. The semiconductor memory circuit includes a pair of bit lines, one of the pair of bit lines being connected to a gate transistor of a memory cell, and a precharge circuit that includes a transistor having a breakdown voltage substantially equal to that of the first transistor, and precharges the pair of bit lines to a predetermined voltage in response to an activation signal. The activation signal of the precharge circuit is a second voltage higher than the first voltage.