摘要:
A switch is coupled between a plurality of host units and a device for communicating therebetween. Included is a first serial advanced technology attachment (SATA) port, a second SATA port, and a third SATA port. The first SATA port includes a first host task file coupled to a first host unit, and the first host task file is responsive to commands sent by the first host unit to the device. The second SATA port includes a second host task file coupled to a second host unit, and the second host task file is responsive to commands sent by the second host unit to the device. An arbitration control circuit is coupled to the SATA ports, and selects from the first and second hosts to concurrently access the device, through the switch, accepting commands from either host units at any time, including when the device is not idle.
摘要:
An embodiment of the present invention is disclosed to include a SATA Switch allowing for access by two hosts to a single port SATA device Further disclosed are embodiments for reducing the delay and complexity of the SATA Switch.
摘要:
An embodiment of the present invention is disclosed to include a hard disk drive allowing for access by two hosts to a device. Further disclosed are embodiments for reducing the delay and complexity of the SATA disk drive.
摘要:
An embodiment of the present invention is disclosed to include a SATA Switch allowing for access by two hosts to a single port SATA device Further disclosed are embodiments for reducing the delay and complexity of the SATA Switch.
摘要:
An embodiment of the present invention is disclosed to include a fiber channel target device for receiving information in the form of frames and including a controller device coupled to a microprocessor for processing the frames received from the host, at least one receive buffer for storing the frames and having a buffer size, the controller device issuing credit to the host for receipt of further frames in a manner wherein only one microprocessor is needed to process the frames while maintaining a buffer size that is as small as the number of first type of frames that can be received by the fiber channel target device from the host.
摘要:
An embodiment of the present invention includes a switch employed in a system having two hosts and a device and for coupling two or more host ports to a device. The switch includes a power signal control circuit generating a power signal for use by the device in receiving power for operability thereto, the power signal control circuit responsive to detection of inoperability of the device and in response thereto, toggling the power signal to the device while avoiding interruption to the system.
摘要:
An embodiment of the present invention is disclosed to include a SATA Switch allowing for access by two hosts to a single port SATA device Further disclosed are embodiments for reducing the delay and complexity of the SATA Switch.
摘要:
A switch is coupled between a plurality of host units and a device for routing frame information therebetween. The switch includes a first serial advanced technology attachment (ATA) port including a first host task file that is responsive to a non-data frame information structure (FIS) from a first host unit. The switch further includes a second serial ATA port including a second host task file that is responsive to a non-data FIS from a second host unit. The switch further includes a third serial ATA port that is responsive to a non-data FIS from a device and further includes an arbitration and control circuit for selecting one of the first host or second host units to concurrently access the device, through the switch, by accepting non-data FIS, from either of the first or second host units, at any given time, including when the device is not in an idle state.
摘要:
An integrated data storage control system provides, in a single integrated circuit, RDC, servo logic, ATA interface, microprocessor, and other formerly discrete components in one highly integrated system design. The integrated circuit is rendered using a single integrated circuit technology type (e.g., digital CMOS) for all components. Analog and digital circuits are combined in such a way as to eliminate or reduce noise or interference in digital circuits from analog circuit components. Individual elements may have their outputs and inputs MUXed together such that individual elements can be selectively switched (during testing modes) such that the integrated circuit emulates or behaves in the same or similar manner as one of the prior art components. The present invention may be applied to magnetic hard disk drives (HDDs) or other types of storage devices such as floppy disk controllers, optical disk drives (e.g., CD-ROMs and the like), tape drives, and other data storage devices.
摘要:
An integrated data storage control system provides, in a single integrated circuit, RDC, servo logic, ATA interface, microprocessor, and other formerly discrete components in one highly integrated system design. The integrated circuit is rendered using a single integrated circuit technology type (e.g., digital CMOS) for all components. Analog and digital circuits are combined in such a way as to eliminate or reduce noise or interference in digital circuits from analog circuit components. Individual elements may have their outputs and inputs MUXed together such that individual elements can be selectively switched (during testing modes) such that the integrated circuit emulates or behaves in the same or similar manner as one of the prior art components. The present invention may be applied to magnetic hard disk drives (HDDs) or other types of storage devices such as floppy disk controllers, optical disk drives (e.g., CD-ROMs and the like), tape drives, and other data storage devices.