USB interface using repeaters with guest protocol support

    公开(公告)号:US10339093B2

    公开(公告)日:2019-07-02

    申请号:US15083518

    申请日:2016-03-29

    Abstract: An example system for side band communication can include a processor, a system-on-chip (SOC), and a repeater communicatively coupled to the processor and the SOC. The repeater can receive packets from a first transceiver. The repeater can also detect a pattern in the packets to identify a guest protocol. The repeater can further send the packets from the first transceiver to the SOC via a second transceiver based on the identified guest protocol.

    Method, Apparatus And System For Power Supply Policy Exchange On A Bus

    公开(公告)号:US20190087378A1

    公开(公告)日:2019-03-21

    申请号:US15706902

    申请日:2017-09-18

    Abstract: In one embodiment, an apparatus includes an input/output (I/O) circuit to communicate information at a selected voltage via an interconnect to which a plurality of devices may be coupled, and a host controller to couple to the interconnect. The host controller may include a supply voltage policy control circuit to initiate a supply voltage policy exchange with a first device to obtain a first supply voltage capability of the first device and to cause the I/O circuit and the first device to be configured to communicate via the interconnect at a first supply voltage based on the first supply voltage capability. Other embodiments are described and claimed.

    APPARATUS FOR UNIVERSAL SERIAL BUS 2.0 (USB2) COMBINED HIGH SPEED SQUELCH AND DISCONNECT DETECTION

    公开(公告)号:US20190004590A1

    公开(公告)日:2019-01-03

    申请号:US15638049

    申请日:2017-06-29

    Abstract: Apparatus for managing high speed Universal Serial Bus 2.0 (USB2) communications is presented. The apparatus may include a combination differential difference detector to receive first and second input signals, the combination differential difference detector to, in a first mode: sense a first voltage difference between the first and second input signals and output a squelch signal when the first voltage difference is less than or equal to a pre-defined value. The combination differential difference detector is to, in a second mode, sense a second voltage difference between the first and second input signals and output a disconnect signal when the second voltage difference is greater than or equal to a pre-defined value. Related methods may also be disclosed.

    Interconnect wake response circuit and method

    公开(公告)号:US10042412B2

    公开(公告)日:2018-08-07

    申请号:US14563079

    申请日:2014-12-08

    Abstract: In some embodiments, provided are circuits and approaches for responding to wake requests over a data bus such as with a USB interface. An interconnect PHY may be placed into an aggressive power reduction mode and in response to a detected wake request on the bus, respond in a sufficient time by keeping at least a portion of a transmitter data path in the PHY powered on during the reduced power mode and responding to the wake request while the PHY re-boots in the background.

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