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公开(公告)号：US20180137896A1
公开(公告)日：2018-05-17
申请号：US15782833
申请日：2017-10-12
Applicant: QUALCOMM Incorporated
Inventor： Hyunsuk SHIN , David TEB , Hung VUONG , Venkatakrishnan GOPALAKRISHNAN
CPC classification number: G11C7/1003 , G06F3/0619 , G06F12/0246 , G06F13/102 , G06F13/1668 , G06F13/4247
Abstract: In conventional systems with a plurality of UFS devices daisy-chained to a UFS host, a UFS device driver must be able to differentiate among the links, and send either link control messages or data/management (D/M) messages to a UFS host controller. This can make force the UFS device driver to be complicated and error prone. To address this issue, a host controller can provide a uniform view of a plurality of daisy-chained devices to a device driver of a host. For example, the host controller can be such that from the perspective of the device driver, each device can appear to be a point-to-point connected device. This can allow the device driver to use a same set of link control messages to control the links. In this way, the device driver can be simplified and thus less error prone.
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公开(公告)号：US20190121540A1
公开(公告)日：2019-04-25
申请号：US15789903
申请日：2017-10-20
Applicant: QUALCOMM Incorporated
Inventor： Hyunsuk SHIN , David TEB , Hung VUONG
Abstract: In a conventional system with a UFS device connected to a UFS host implementing HPB features, a UFS driver software generates commands, e.g., read and write commands, for the UFS device to perform. The commands include both physical and logical addresses of the UFS device. Typically, the UFS driver software is software based. Therefore, there is much overhead associated with implementing the HPB. To address this issue, it is proposed to enable a hardware based host controller to perform operations related to the HPB. In this way, the performance of a system may be improved.
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公开(公告)号：US20190095273A1
公开(公告)日：2019-03-28
申请号：US16123737
申请日：2018-09-06
Applicant: QUALCOMM Incorporated
Inventor： Sharon GRAIF , Amit GIL , David TEB , Radu PITIGOI-ARON
Abstract: Systems, methods, and apparatus are described that enable a serial bus to be operated in one or more modes that employ additional wires for communicating data. An apparatus has a bus including a first lane and a second lane, a plurality of devices coupled to the bus and, in a first mode of operation, the plurality of devices is configured to exchange data in a signal transmitted on the first lane in accordance with timing provided by a clock signal transmitted on the second lane. The apparatus may include one or more additional lanes connecting two or more devices in the plurality of devices, the two or more devices being configured to use the first lane and at least one of the additional lanes for data transmissions in a second mode of operation.
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公开(公告)号：US20180107384A1
公开(公告)日：2018-04-19
申请号：US15292675
申请日：2016-10-13
Applicant: QUALCOMM Incorporated
Inventor： Hyunsuk SHIN , David TEB , Hung VUONG
IPC: G06F3/06
CPC classification number: G06F3/061 , G06F3/0607 , G06F3/0635 , G06F3/0679 , G06F13/4022
Abstract: Systems and method are directed to a Universal Flash Storage (UFS) host capable of interfacing one or more UFS devices. The UFS host includes a plurality of mobile-physical-layers (M-PHYs) for supporting one or more lanes of traffic between the UFS host and the one or more UFS devices. A Reference M-PHY MODULE Interface (RMMI) router is coupled between a Unified Protocol link layer (Unipro) and the plurality of M-PHYs. The RMMI router is configurable in a transparent mode to pass traffic, without routing, between the UFS host and a 2-lane embedded UFS device through the two M-PHYs. The RMMI router is configurable in a routing mode, to route traffic to a first M-PHY interfacing a 1-lane embedded UFS device or to a second M-PHY interfacing a 1-lane removable UFS card. The RMMI router is configurable based on metal strap or read only memory (ROM) setting.
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