公开(公告)号：EP1246420A2

公开(公告)日：2002-10-02

申请号：EP02100302.5

申请日：2002-03-26

申请人： Texas Instruments Incorporated

发明人： Tinsley, Steven J. ,  Hwang, Julie A. ,  Morgan, Mark W.

IPC分类号： H04L25/08

CPC分类号： H03K19/007 ,  H04L25/08

摘要： The present invention provides a method, system and apparatus for providing failsafe detection for a differential receiver. A bus activity signal (11) is activated when receiving a differential data signal of sufficient amplitude to transition through a predetermined threshold. A failsafe signal (620) indicates a low differential voltage condition. A countdown time period commences (85) upon activation of either signal, and a failsafe condition is determined (89) to exist if the failsafe signal is active (87) when the countdown time period expires (86).

公开(公告)号：EP1246420B1

公开(公告)日：2017-01-11

申请号：EP02100302.5

申请日：2002-03-26

申请人： Texas Instruments Incorporated

发明人： Tinsley, Steven J. ,  Hwang, Julie A. ,  Morgan, Mark W.

IPC分类号： H04L25/08 ,  H03K19/007

CPC分类号： H03K19/007 ,  H04L25/08

公开(公告)号：EP1246420A3

公开(公告)日：2006-04-12

申请号：EP02100302.5

申请日：2002-03-26

申请人： TEXAS INSTRUMENTS INCORPORATED

发明人： Tinsley, Steven J. ,  Hwang, Julie A. ,  Morgan, Mark W.

IPC分类号： H04L25/08 ,  H03K19/007

CPC分类号： H03K19/007 ,  H04L25/08

摘要： The present invention provides a method, system and apparatus for providing failsafe detection for a differential receiver. A bus activity signal (11) is activated when receiving a differential data signal of sufficient amplitude to transition through a predetermined threshold. A failsafe signal (620) indicates a low differential voltage condition. A countdown time period commences (85) upon activation of either signal, and a failsafe condition is determined (89) to exist if the failsafe signal is active (87) when the countdown time period expires (86).