公开(公告)号：US06968413B2

公开(公告)日：2005-11-22

申请号：US10266132

申请日：2002-10-07

申请人： Hayden C. Cranford, Jr. ,  Westerfield J. Ficken ,  Paul A. Owczarski

发明人： Hayden C. Cranford, Jr. ,  Westerfield J. Ficken ,  Paul A. Owczarski

IPC分类号： G06F13/00 ,  H04L25/02

CPC分类号： H04L25/0278

摘要： A system and method is disclosed that efficiently provides standard termination blocks in an approved cell library that are flexible and customizable. A serial communications system includes a transmitter for sending a serial data signal at an output of the transmitter; a transmitter terminator, coupled to the output and responsive to a first configuration signal, to variably terminate a first selected property of the output; a receiver for processing the serial data signal at an input of the receiver, the input of the receiver coupled to the output of the transmitter; and a receiver terminator, coupled to the input of the receiver and responsive to a second configuration signal to variably terminate a second selected properly of the input. The method for operating a serial communications system includes the steps of: (a) providing a plurality of unidirectional serial links, each of the links between a transmitter and a receiver, an output of each transmitter coupled to an input of a corresponding receiver by a medium type with each output having a transmitter terminator and each input having a receiver terminator; (b) terminating variably a selected property of the output of each transmitter to match the medium type coupling the output to the input of the corresponding receiver by use of a transmitter termination configuration signal asserted to the transmitter; and (c) terminating variably a selected property of the input of each receiver to match the medium type coupling the input to the output of the corresponding transmitter by use of a receiver termination configuration signal asserted to the receiver.

摘要翻译： 公开了一种系统和方法，其有效地提供了可被灵活和可定制的批准的小区库中的标准终端块。 串行通信系统包括用于在发射机的输出端发送串行数据信号的发射机; 发射器终端器，耦合到所述输出并且响应于第一配置信号可变地终止所述输出的第一选定属性; 用于在接收机的输入端处理串行数据信号的接收机，耦合到发射机的输出的接收机的输入; 以及接收器终端器，其耦合到所述接收器的输入并且响应于第二配置信号可变地终止所选输入的第二选择。 用于操作串行通信系统的方法包括以下步骤：（a）提供多个单向串行链路，发射机和接收机之间的每个链路，每个发射机的输出端通过一个 中间型，每个输出具有发射器终端器，每个输入具有接收器终端器; （b）可变地终止每个发射机的输出的选定属性，以使得通过使用被确定给发射机的发射机终端配置信号将输出耦合到相应接收机的输入的媒体类型; 以及（c）可变地终止每个接收机的输入的选定属性以将通过使用被确认给接收机的接收机终端配置信号将输入耦合到相应发射机的输出的媒体类型。

公开(公告)号：US06298458B1

公开(公告)日：2001-10-02

申请号：US09225111

申请日：1999-01-04

申请人： Hayden C. Cranford, Jr. ,  Eirik Gude ,  Joseph A. Iadanza ,  Paul A. Owczarski ,  Jonathan H. Raymond

发明人： Hayden C. Cranford, Jr. ,  Eirik Gude ,  Joseph A. Iadanza ,  Paul A. Owczarski ,  Jonathan H. Raymond

IPC分类号： G01R3128

CPC分类号： H04L43/50 ,  G01R31/2884 ,  H04B17/10 ,  H04B17/20

摘要： A system and method for testing the most complex portions of transceiver devices integrated into digital VLSI chips. The testing is performed in a manufacturing environment with minimal external hardware and using a combination of test-specific circuitry and pattern algorithms built into a mixed signal transceiver implementing a test methodology suitable for application and measurement on a digital tester.

摘要翻译： 用于测试集成到数字VLSI芯片中的收发器设备的最复杂部分的系统和方法。 该测试在具有最小外部硬件的制造环境中进行，并且使用内置于混合信号收发器中的测试专用电路和模式算法的组合来实现适用于数字测试仪上的应用和测量的测试方法。