公开(公告)号：US09246716B2

公开(公告)日：2016-01-26

申请号：US14663303

申请日：2015-03-19

Applicant: QUALCOMM Incorporated

Inventor： Dexter Tamio Chun ,  Sumeet Sethi ,  John Eaton ,  Vinodh Cuppu ,  Vikram Arora ,  Vaishnav Srinivas ,  Asim Muhammad Muneer ,  Isaac Berk

IPC: H03K19/003 ,  H04L25/02 ,  H03K19/0175 ,  G06F13/40 ,  H03K19/00

CPC classification number: H04L25/0278 ,  G06F13/4086 ,  H03K19/0005 ,  H03K19/017545 ,  Y02D10/14 ,  Y02D10/151

Abstract: A method of controlling signal termination includes providing first logic for selectively terminating signals received at a first device on a bidirectional data bus, providing second logic for selectively terminating signals received at a second device on the bidirectional data bus, sending first signals from the first device to the second device on the bidirectional data bus at a first speed, stopping the sending of the first signals, after stopping the sending of the first signals, enabling the second logic and shifting a reference voltage of the second device from a first level to a second level, after enabling the second logic at the second device, sending second signals from the first device to the second device on the bidirectional data bus at a higher speed, and controlling the first logic based on a speed of signals received at the first device on the bidirectional data bus.

公开(公告)号：US09088445B2

公开(公告)日：2015-07-21

申请号：US13787926

申请日：2013-03-07

Applicant: QUALCOMM Incorporated

Inventor： Dexter T. Chun ,  Sumeet S. Sethi ,  John D. Eaton ,  Vinodh R. Cuppu ,  Vikram Arora ,  Vaishnav Srinivas ,  Asim Muhammad Muneer ,  Isaac D. Berk

IPC: H03K17/16 ,  H04L25/02 ,  G06F13/40 ,  H03K19/00

CPC classification number: H04L25/0278 ,  G06F13/4086 ,  H03K19/0005 ,  H03K19/017545 ,  Y02D10/14 ,  Y02D10/151

Abstract: A method of controlling signal termination includes providing first logic for selectively terminating signals received at a first device on a bidirectional data bus, providing second logic for selectively terminating signals received at a second device on the bidirectional data bus, sending first signals from the first device to the second device on the bidirectional data bus at a first speed, stopping the sending of the first signals, after stopping the sending of the first signals, enabling the second logic and shifting a reference voltage of the second device from a first level to a second level, after enabling the second logic at the second device, sending second signals from the first device to the second device on the bidirectional data bus at a higher speed, and controlling the first logic based on a speed of signals received at the first device on the bidirectional data bus.

Abstract translation: 一种控制信号终止的方法包括：提供用于选择性地终止在双向数据总线上在第一设备处接收的信号的第一逻辑，提供用于选择性地终止在双向数据总线上的第二设备处接收的信号的第二逻辑，从第一设备发送第一信号 以第一速度传送到双向数据总线上的第二设备，在停止发送第一信号之后停止发送第一信号，使得第二逻辑能够使第二设备的参考电压从第一电平移位到 在第二设备启用第二逻辑之后，以更高的速度在双向数据总线上从第一设备向第二设备发送第二信号，并且基于在第一设备处接收到的信号的速度来控制第一逻辑 在双向数据总线上。