摘要:
An integrated circuit apparatus may include: a plurality of power domains to which power voltage is separately supplied; a plurality of circuit macros belonging to a plurality of the power domains respectively; a plurality of power switches to conduct or to substantially block power coming from a power circuit and going to the plurality power domains, respectively; and a power-controlling unit including a controller to control the plurality of power switches, a power domain register to store power domain data which corresponds to a plurality of external interrupt signals that are indicative of power domains that are to be activated; and an interrupt handler to respond to the external interrupt signals by delivering the power domain data corresponding to the external interrupt signals to the controller, the controller being operable to turn on/off the power switches corresponding to the power domain data, respectively.
摘要:
The present invention provides such a data storing format that is effective for solving problems which may arise when regenerating video data in a video data storage and communication system. A channel data demultiplexing portion splits a multiplexed input into audio/video and other components. An error correction portion corrects an error of the video data output from the channel data demultiplexing portion. A video frame extracting portion extracts a video frame output from the error correction portion. A packet assembling portion assembles a packet from the video data output from the video frame extracting portion and the audio data output from the data demultiplexing portion. A storage portion stores therein the packet output from the packet assembling portion. Consequently, video data can be stored by video frames.
摘要:
A power controlling circuit is assigned to each of a plurality of power domains of which power may be on/off-controlled, and which have a first hierarchical structure included in a semiconductor device, and these power controlling circuits are connected in accordance with a second hierarchical structure corresponding to the first hierarchical structure, and thereby, a power management unit controlling power supply to the plurality of power domains is configured, as a result that the power management unit performing power supply control depending on power control specification may be designed easily.
摘要:
A semiconductor integrated circuit includes: a plurality of domains each supplied power supply voltage from corresponding one of a plurality of power supply units; and a plurality of operation control units each connected to corresponding one of the plurality of domains and controlling an operational state of the corresponding domain, wherein each of the domain transmits a operation change request to the corresponding operation control unit, the operation change request representing a request for a change of the operational state with a change in current value of the domain, and the operation control unit calculates a current change rate of the domain resulted from the change of operational state upon receiving the operation change request, and transmits a response signal approving the change of operational state to the corresponding domain in case of the current change rate is within a specified value.
摘要:
A power management unit for controlling power supply voltages of first and second power domains to which first and second CPUs belong respectively includes a power IC which supplies first and second power supply voltages to the first and second power domains respectively; a clock generating portion which generates first and second clocks and supplies the first and second clocks to the first and second CPUs respectively; and a power and clock control portion which is connected both to the power IC and to the clock generating portion.
摘要:
An integrated circuit apparatus may include: a plurality of power domains to which power voltage is separately supplied; a plurality of circuit macros belonging to a plurality of the power domains respectively; a plurality of power switches to conduct or to substantially block power coming from a power circuit and going to the plurality power domains, respectively; and a power-controlling unit including a controller to control the plurality of power switches, a power domain register to store power domain data which corresponds to a plurality of external interrupt signals that are indicative of power domains that are to be activated; and an interrupt handler to respond to the external interrupt signals by delivering the power domain data corresponding to the external interrupt signals to the controller, the controller being operable to turn on/off the power switches corresponding to the power domain data, respectively.
摘要:
Structure is provided to realize transmission of video with no transmission error over a transmission line having a low transmission performance. A video communication video terminal device which is provided with a video transmission adapter includes a transmission video-frame disassembling portion for correcting a transmission error in video-data, detecting an error in the corrected video data after correction of transmission error therein and extracting only errorless video-frame data, a transmission video frame generating portion for generating a video frame composed of video frame data to be transmitted, a control signal for controlling the other terminal to be communicated and an error-correction code attached the data and a video control portion for instructing extraction of errorless video-frame data from the received video data and controlling the video frame data to be transmitted according to the control signal.
摘要:
Herein disclosed is a method for controlling a semiconductor integrated circuit having plural domains, the method including controlling plural power supplies which supply power to the plural domains, controlling an asynchronous bridge section being provided between each of the domains, receiving and transmitting data for dynamically changing a power supply voltage of at least one of the domains, wherein, when a power supply voltage of one of the domains is substantially equal to a power supply voltage of the other domains, switching the power supply paths so as to supply the power supply voltage from one power supply to at least two of the domains, and switching the data paths so as to receive and transmit data between the at least two of the domains by bypassing the asynchronous bridge section.
摘要:
A semiconductor integrated circuit includes a plurality of circuit blocks; a plurality of power switches configured to supply power or cut power supply to the corresponding circuit blocks on a circuit-block-by-circuit-block basis in accordance with logic states of first control signals; a power switch controller configured to select, upon receipt of a second control signal, which power switches to control from among the plurality of power switches, and output third control signals instructing the selected power switches to supply power or cut power supply; and a first protection circuit provided between the power switches and the power switch controller, the first protection circuit being configured to output the first control signals, which are obtained by converting the logic states of the third control signals, to the selected power switches.
摘要:
In order to reduce the flicker and blur of a result obtained by, for example, converting an interlace scan image into a progressive scan image, an image still area determination device comprises a unit for calculating the average value of the values of the relevant pixel and pixels adjacent to the pixel in each of the current frame image and a frame image immediately before it, a unit for calculating a difference between the average values of a pair of pixels located in the same position of each of two frame images and a unit for determining a still area in each of the two frame images, using its output and a predetermined threshold value.