摘要:
A method is provided for generating a plurality of displays from a composite video data stream comprising a plurality of frames each including two portions, a first portion of each frame containing data defining even fields of respective first and second displays and a second one of the portions of each frame containing data defining odd fields of the first and second displays. During first and second phases of a set of processing phases, data defining the odd and even fields of the first display are extracted from each received frame. Also during the first and third phases, the extracted data defining the odd and even fields of the first display are written into a first object buffer. During second and fourth phases of the set of processing phases, data defining the odd and even fields of the second display are extracted from each received frame. Also during the second and fourth phases, the extracted data defining the odd and even fields of the second display is written into a second object buffer. During the third and fourth phases, the first display data stored in the first object buffer is retrieved to drive a display device for generating the first display. During the second and fourth phases, the second display data stored in the second object buffer is retrieved to drive a display device for generating the second display.
摘要:
A pixel color processor that performs supplemental graphical processing duties in a video unit in a computer system. The pixel color processor is interfaced between a processor and video memory and performs pixel string manipulation and color management duties on the pixel color data at the direction of the processor, thereby freeing up the processor of these duties. The memory address space of the processor includes a monochrome memory area which maps onto the full-depth packed-pixel video memory. When the processor performs operations on this monochrome area, the pixel color processor intercepts the addresses data generated by the processor and performs the pixel block transfers.
摘要:
A hybrid PCI_Express fabric system allows LPC bus commands and data to be sent across the PCI_Express fabric from a portable computer to its docking station. This permits the portable computer to be coupled to peripheral devices connected to the docking station without additional connectors on the portable computer and the docking station.
摘要:
A method is provided for displaying data received as a composite video data stream, each frame of the composite data stream being composed of a field of data defining a first video display and a subsequent field defining a second video display. The composite video data stream is received and during first and third phases of a set of processing phases, the fields of data defining the first video display are stored in a first object buffer in memory. During second and fourth phases of the set of processing phases, the fields of data defining the second display are stored in a second object buffer in memory. During the first and third phases, the fields of data stored in the first object buffer are retrieved to generate the first display and during the second and fourth phases, the fields of data stoned in the second object buffer are retrieved to generate the second display.
摘要:
A Virtual Frame Buffer control system and method for cascading several display controllers on one LCD panel. The Virtual Frame Buffer is composed of all the memory in all the controller/memory/source driver chips (in a tiled pattern) for the associated processor to read and write in. The control system also includes hardware clipping controls in each of the controller/memory/source driver chips. The Virtual Frame Buffer and hardware clipping control placement substantially reduces programming problems associated with prior art solutions for cascading LCD controller/memory/source driver devices.
摘要:
A memory system 104 includes an array 200 of memory cells arranged in rows and columns. Circuitry 208 is included for selectively performing logic operations on a bit of data stored in a selected cell using a bit of received modifying data and mode data bit for selecting a logic operation for performance. Circuitry 208 for performing logic operations is operable during an AND logic operation to write data into the cell when the bit of modifying data is a logic zero and maintaining an existing bit stored in the cell when the bit of modifying data is a logic one. Also included is circuitry 207, 210 for receiving and latching the mode data bit and the modifying data through a single port.
摘要:
Sensing circuitry including a sense amplifier 400 for latching a bit of data on a true bit line and a complementary bit of data on a complementary bit line. Circuitry 403, 404, 405 is included for performing boolean operations on bit of data latched in sense amplifier 400 in response to a bit of modifying data. Circuitry 403, 404, 405 during an AND operation pulls down the true bit line when the bit of modifying data a logic 0.
摘要:
A memory system 104 is provided which includes an array 200 of memory cells arranged in rows and columns. Circuitry 207, 208, 209, 210 is also provided for selectively performing logic operations on a bit of data stored in a selected memory cell using a bit of received modifying data. Circuitry 207, 208, 209, 210 for performing logic operations is operable during an AND operation to write the bit of modifying data into the selected memory cell when the bit of modifying data is a logic zero and maintains an existing bit stored in the selected cell when the bit of modifying data is a logic one.
摘要:
A memory system 104 includes an array 200 of memory calls arranged in rows and columns and circuitry 208 for selectively performing logic operations on a bit of data stored in a selected call using a bit of received modifying data and a mode data bit for selecting a logic operation for performance. Circuitry 208 for modifying during an OR logic operation writing bit of the modifying data into the cell when the bit of modifying data is a logic one and maintaining an existing bit stored in call when the bit of modifying data is a logic zero. Memory system 104 further includes circuitry 207, 210 for receiving and latching the mode data and the modifying data through a single port.
摘要:
A display interface device 20 is provided which includes inputs for receiving video data words, the video data words including control codes for controlling the output format of a display, and a video clock signal received from an associated video controller. A first-in/first-out memory 30 is also provided with a video data word clocked into memory 30 by the first clock and clocked out of memory 30 by a second clock generated from a clock received from an associated graphics controller.