公开(公告)号：US06177808B1

公开(公告)日：2001-01-23

申请号：US09070937

申请日：1998-04-30

申请人： David F. Heinrich ,  Saimak Tavallaei ,  Barry S. Basile

发明人： David F. Heinrich ,  Saimak Tavallaei ,  Barry S. Basile

IPC分类号： H03K19003

CPC分类号： H03K17/693

摘要： In electronic systems, signaling problems frequently occur when a device is driving a signal on a line to an incorrect level at a particular point in time. When production schedules do not permit fixing the defects in the errant device, programmable logic has been employed to work around the problems caused by the defective device. Higher device speeds and increasingly complex bus protocols have made the technique of singly using programmable logic, more difficult to implement. The addition of bidirectional switches integrated with and controlled by programmable logic in a monolithic integrated circuit allows the programmable logic device to respond more quickly while at the same time consuming less printed circuit board space. Additionally, the invention provides for termination of the isolated device and/or signal line stubs.

摘要翻译： 在电子系统中，当设备在特定时间点将线上的信号驱动到不正确的电平时，经常发生信令问题。 当生产计划不允许修复错误设备中的缺陷时，可以使用可编程逻辑来解决由缺陷设备引起的问题。 更高的设备速度和越来越复杂的总线协议使单独使用可编程逻辑的技术更难实现。 在单片集成电路中添加与可编程逻辑集成并由其控制的双向开关允许可编程逻辑器件更快地响应，同时消耗更少的印刷电路板空间。 另外，本发明提供了隔离设备和/或信号线存根的终止。