SLAVE MASTER-WRITE/READ DATAGRAM PAYLOAD EXTENSION

    公开(公告)号:US20200073847A1

    公开(公告)日:2020-03-05

    申请号:US16678827

    申请日:2019-11-08

    Abstract: Systems, methods, and apparatus for communicating datagrams over a serial communication link are provided. A transmitting device generates an address field in a datagram, sets a value of at least one bit in the address field to indicate a number of bytes of data associated with a data frame of the datagram, generates the data frame in the datagram, the data frame including the number of bytes of data, and sends the datagram to a receiving device. A receiving device receives a datagram from a transmitting device, decodes an address field of the datagram to detect a number of bytes of data included in a data frame of the datagram based on a value of at least one bit in the address field, and decodes the data frame to recover the detected number of bytes of data.

    GENERAL PURPOSE INPUT OUTPUT TRIGGERED INTERFACE MESSAGE

    公开(公告)号:US20190317911A1

    公开(公告)日:2019-10-17

    申请号:US16037802

    申请日:2018-07-17

    Abstract: Systems, methods, and apparatus for communicating a control signal between device components are provided. Within an apparatus, an integrated circuit (IC) sends a control signal to a system on chip (SoC). The control signal requests enablement or disablement of one or more resources corresponding to the IC. Thereafter, a converting circuit within the SoC converts the control signal from the IC into a command to be transmitted to one or more devices. The converting circuit then transmits the command to the one or more devices via a bus coupling the SoC to the one or more devices. The one or more devices includes one or more power management integrated circuits (PMICs) configured to control the one or more resources. As such, the one or more PMICs enable or disable the one or more resources corresponding to the IC based on the command

    ADDRESS ASSIGNMENT FOR DEVICES COUPLED TO A SHARED BUS

    公开(公告)号:US20240281401A1

    公开(公告)日:2024-08-22

    申请号:US18171264

    申请日:2023-02-17

    CPC classification number: G06F13/4282 G06F13/4022 G06F2213/0018

    Abstract: A subordinate device participates in address assignment through iterative communication with a host device. The subordinate device receives a first broadcast command over a multidrop serial bus, decouples a daisy chain input of the subordinate device from a daisy chain output of the subordinate device, receives a second broadcast command over the multidrop serial bus, responds to the second broadcast command when a signal received through the daisy chain input is in an active state, ignores the second broadcast command when the signal received through the daisy chain input is in an inactive state, and ignores subsequent broadcast commands after responding to the second broadcast command. Responding to the second broadcast command includes configuring a unique device identifier of the subordinate device using an address provided in the second broadcast command, and coupling the daisy chain input of the subordinate device to the daisy chain output of the subordinate device.

    MULTI-LANE SYSTEM POWER MANAGEMENT INTERFACE

    公开(公告)号:US20200233829A1

    公开(公告)日:2020-07-23

    申请号:US16254189

    申请日:2019-01-22

    Abstract: Systems, methods, and apparatus related to the operation of a multilane serial bus communicate the configuration of lanes used to handle a transaction over the serial bus through signaling transmitted at the commencement of the transaction. The method includes asserting a multilane bus request by initiating a pulse on a secondary data lane of the serial bus while the clock lane is idle, participating in a first bus arbitration procedure executed using the secondary data lane after the pulse is terminated, providing initial signaling on the secondary data lane after winning the first bus arbitration procedure to indicate a set of data lanes to be used during a transaction, and executing a first transaction using the set of data lanes. The set of data lanes may include the primary data lane and the secondary data lane. The initial signaling may include a sequence start condition.

    BOOT CLUSTER INDICATION IN A COMPUTER SYSTEM

    公开(公告)号:US20240403062A1

    公开(公告)日:2024-12-05

    申请号:US18327654

    申请日:2023-06-01

    Abstract: Aspects of the present disclosure are directed to techniques and apparatuses for implementing a power-on (PON) sequence in a computer system. A power management integrated circuit (PMIC) receives a boot circuit indicator (BCI) signal from a computer system. The BCI signal identifies a circuit of the computer system to be enabled in a power-on (PON) sequence. The PMIC provides power to the boot core or cluster of the SoC based on the BCI signal.

    Power Efficient Always-On Low Energy Bluetooth Advertising

    公开(公告)号:US20240334109A1

    公开(公告)日:2024-10-03

    申请号:US18194057

    申请日:2023-03-31

    CPC classification number: H04R1/1025 H04W52/028

    Abstract: Various embodiments include systems and methods for balancing battery cycles of paired earbuds. A processor in an earbud charging case may receive battery level information from a first earbud operating in a deep sleep mode, determine a battery differential index (BDI) value, and send an instruction message to the first earbud indicating the first earbud should switch roles with a second earbud. An earbud may start a timer upon beginning to operate in a dormant mode, transition from operating in the dormant mode to operating in a non-dormant mode in response to expiration of the timer, send a message to a paired earbud indicating that the earbud has transitioned, and receive a message from the paired earbud indicating that the earbud should switch from operating in the dormant mode to operating in the deep sleep mode and periodically broadcasting an advertisement.

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