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公开(公告)号:US20080109587A1
公开(公告)日:2008-05-08
申请号:US11556066
申请日:2006-11-02
申请人: Philip Paul P. Greenhalgh , Aaron T. Applegate , Miriam Y. Avello , Ashley James Lawrie , Taw Lim , Nikhil Mhatre , Joseph Patino , Robert H. Pichette , Marco Pulido , Jose F. Rodriguez , Stefan Petkov P. Stefanov , James R. Wise , WenJiong Yang
发明人: Philip Paul P. Greenhalgh , Aaron T. Applegate , Miriam Y. Avello , Ashley James Lawrie , Taw Lim , Nikhil Mhatre , Joseph Patino , Robert H. Pichette , Marco Pulido , Jose F. Rodriguez , Stefan Petkov P. Stefanov , James R. Wise , WenJiong Yang
IPC分类号: G06F13/00
CPC分类号: G06F13/4022
摘要: A device (100) that includes a communications port (130), a first processor (135), at least a second processor (140), and a multiplexer (105). The multiplexer can selectively communicatively link the communications port to the first processor or the second processor. The multiplexer can include at least one switch (110, 115) and a switch controller (120) that controls operation of the switch. The switch controller can be responsive to at least one control signal (125) generated by the first processor. The first processor can generate the control signal in response to a command received from an external device (155) connected to the communications port. The command can be an attention command or a test software command. The switch controller also can be responsive to at least one control signal generated by the second processor.
摘要翻译: 一种包括通信端口(130),第一处理器(135),至少第二处理器(140)和多路复用器(105)的设备(100)。 多路复用器可以选择性地将通信端口通信地链接到第一处理器或第二处理器。 多路复用器可以包括控制开关的操作的至少一个开关(110,115)和开关控制器(120)。 开关控制器可以响应于由第一处理器产生的至少一个控制信号(125)。 响应于从连接到通信端口的外部设备(155)接收到的命令,第一处理器可以产生控制信号。 该命令可以是注意命令或测试软件命令。 开关控制器还可以响应于由第二处理器产生的至少一个控制信号。