摘要:
An integrated circuit device includes dedicated memory verification logic to compare data read from a set of cells in a memory at a first time to data read from the same set of memory cells at a second time.
摘要:
A wake up circuit for a computer system with a codec controller. The circuit provides a wakeup signal to the computer system when a codec detects an event that requires the system to become active. This signal is provided whether the communications link between the codecs and their controller is active or inactive. When the link is inactive, as indicated by the absence of a bit clock, a data signal on any of the codec input lines triggers the controller to send a power activation signal to the system and to initiate an activation of the codec link. If the link is already active, the general purpose input status change bit is transmitted to the controller, which writes it into a register that is used to trigger a power activation signal to the system. An enable input permits the wakeup signal to be enabled or disabled under program control. The wakeup signal can be used to trigger a system management interrupt or other interrupt suitable for initiating a system resume function.
摘要:
The present invention is an apparatus and method for selecting one of a first and a second storage element in response to a control signal issued by a processor in a low pin count device. The apparatus comprises a decoder to receive the control signal and an address signal having a select bit indicative of one of the first and the second storage elements. The decoder generates a select signal to access one of the first and the second storage elements based on the select bit.
摘要:
A system having a bus coupled to a host and a peripheral controller device each coupled to a bus. The bus includes a plurality of general purpose signal lines to carry time-multiplexed address, data, and control information. The peripheral controller device communicates with the host over the bus to control devices such as parallel port controllers, serial port controllers, super I/O controllers, floppy disk controllers, keyboard controllers and memory devices.
摘要:
A slave DMA peripheral achieves the functionalities of a bus master without incurring the costs of additional address and control lines. Information regarding buffers to be accessed is loaded in the peripheral from the CPU. Actual buffer addresses, length values, and direction information are later programmed into the DMA controller by the peripheral. The present invention manages communication between the peripheral and main memory through the DMA controller. This allows the peripheral to access buffers in memory using a minimal number of lines.
摘要:
A method for computer system recovery is presented. In one embodiment, the method includes establishing a connection, via an interface, to a computer system to support the system recovery of the computer system. The method includes executing an emulation application as a recovery agent. The method includes retrieving, based on identifiers associated with the computer system, remote data via another interface. The method further includes performing the system recovery by using at least a part of the remote data.
摘要:
A method and apparatus is described for computing a duration of a reduced power consumption state. A time of exiting from the reduced power consumption state is read prior to an execution of an interrupt routine. The read time of exiting is then stored in a register and a calculation of a reduced power consumption state duration may be performed.
摘要:
In one embodiment of the invention, an integrated device is described that employs a mechanism to control power consumption of a graphics memory controller hub (GMCH) through both voltage and frequency adjustment of clock signal received from a clock generator. The GMCH comprises a graphics core and a circuit to alter operational behavior, such as the frequency of a render clock signal supplied to the graphics core. The circuit is adapted to monitor idleness of the graphics core and reduce a frequency level of the render clock signal if the idleness exceeds a determined percentage of time.
摘要:
A method and apparatus to communicate with a token using a previously reserved binary number in the start field of a cycle, wherein the cycle is not echoed on any bus other than the bus through which the communication is received.
摘要:
A method and apparatus for a race free data transfer algorithm using hardware based polling. One disclosed method transfers information between a target device and a buffer which is one of a set of buffers. The buffer is pointed to by a current buffer value stored in a controller. The current buffer value is adjusted to point to a next buffer if the current buffer value is different than a last buffer value. One of the set of buffers is serviced utilizing either the current buffer value or the last buffer value from the controller.