公开(公告)号：US20200183874A1

公开(公告)日：2020-06-11

申请号：US16700356

申请日：2019-12-02

Applicant: Apple Inc.

Inventor： Jafar Savoj ,  Jose A. Tierno ,  Sanjeev K. Maheshwari ,  Brian S. Leibowitz ,  Pradeep R. Trivedi ,  Gin Yee ,  Emerson S. Fang

IPC: G06F13/42 ,  G06F13/40 ,  G06F9/52

Abstract: A system and method for efficiently transporting data across lanes. A computing system includes an interconnect with lanes for transporting data between a source and a destination. When a source receives an indication of a bandwidth requirement change from a first data rate to a second data rate, the transmitter in the source sends messages to the receiver in the destination. The messages indicate that the data rate is going to change and reconfiguration of one or more lanes will be performed. The transmitter selects one or more lanes for transporting data at the second data rate. The transmitter maintains data transport at the first data rate while reconfiguring the selected one or more lanes to the second data rate. After completing the reconfiguration, the transmitter transports data at the second data rate on the selected one or more lanes while preventing data transport on any unselected lanes.

公开(公告)号：US10521391B1

公开(公告)日：2019-12-31

申请号：US16204252

申请日：2018-11-29

Applicant: Apple Inc.

Inventor： Jafar Savoj ,  Jose A. Tierno ,  Sanjeev K. Maheshwari ,  Brian S. Leibowitz ,  Pradeep R. Trivedi ,  Gin Yee ,  Emerson S. Fang

IPC: G06F13/42 ,  G06F9/52 ,  G06F13/40

Abstract: A system and method for efficiently transporting data across lanes. A computing system includes an interconnect with lanes for transporting data between a source and a destination. When a source receives an indication of a bandwidth requirement change from a first data rate to a second data rate, the transmitter in the source sends messages to the receiver in the destination. The messages indicate that the data rate is going to change and reconfiguration of one or more lanes will be performed. The transmitter selects one or more lanes for transporting data at the second data rate. The transmitter maintains data transport at the first data rate while reconfiguring the selected one or more lanes to the second data rate. After completing the reconfiguration, the transmitter transports data at the second data rate on the selected one or more lanes while preventing data transport on any unselected lanes.

公开(公告)号：US09838025B1

公开(公告)日：2017-12-05

申请号：US15233124

申请日：2016-08-10

Applicant: Apple Inc.

Inventor： Wei Deng ,  Dennis Fischette, Jr. ,  Gin Yee

IPC: H03L7/085 ,  H03L7/089

CPC classification number: H03L7/0891 ,  H03L7/1072 ,  H03L7/1075 ,  H03L7/113 ,  H03L7/18

Abstract: An apparatus includes circuitry and an oscillator circuit that may be configured to generate a clock signal dependent upon a control signal. The circuitry may be configured to perform a frequency measurement of the clock signal. In response to a determination that the frequency of the clock signal is greater than a first threshold, the circuitry may also be configured to perform a phase comparison between a divided clock signal and a reference clock signal, and to adjust a value of the control signal such that the adjusted value depends upon a result of the comparison. In response to a determination that the frequency of the clock signal is less than the first threshold, the circuitry may be configured to adjust the value of the control signal such that the adjusted value depends upon a result of the measurement.

公开(公告)号：US11023403B2

公开(公告)日：2021-06-01

申请号：US16700356

申请日：2019-12-02

Applicant: Apple Inc.

Inventor： Jafar Savoj ,  Jose A. Tierno ,  Sanjeev K. Maheshwari ,  Brian S. Leibowitz ,  Pradeep R. Trivedi ,  Gin Yee ,  Emerson S. Fang

IPC: G06F13/42 ,  G06F9/52 ,  G06F13/40

Abstract: A system and method for efficiently transporting data across lanes. A computing system includes an interconnect with lanes for transporting data between a source and a destination. When a source receives an indication of a bandwidth requirement change from a first data rate to a second data rate, the transmitter in the source sends messages to the receiver in the destination. The messages indicate that the data rate is going to change and reconfiguration of one or more lanes will be performed. The transmitter selects one or more lanes for transporting data at the second data rate. The transmitter maintains data transport at the first data rate while reconfiguring the selected one or more lanes to the second data rate. After completing the reconfiguration, the transmitter transports data at the second data rate on the selected one or more lanes while preventing data transport on any unselected lanes.