USB 2.0ÌáËÙ²¹¶¡¼°Ê¹Ó÷½·¨

                                    ·¢²¼£º2013-3-11 9:36:37  À´Ô´:×ªÔØ  ä¯ÀÀ´Î  ±à¼­£ºØýÃû
                                    ËäÈ»IntelºÍAMDÅ䱸USB 3.0¿ØÖÆÆ÷µÄÖ÷°åÒѾ­´óÁ¿ÉÏÊУ¬µ«¶ÔÓÚÒѾ­Ñ¡ÔñÁËÖ»ÓÐUSB 2.0µÄÖ÷°åµÄÓû§À´Ëµ£¬ÓÃUSB 2.0ÉÁ´æ¡¢Òƶ¯Ó²ÅÌ¿½±´´óÎļþʱ£¬¿´×ÅÄÇÎÏÅ£°ãµÄ½ø¶ÈÌõ£¬ÓÐľÓÐÖÖ²»ÄÍ·³µÄ¸Ð¾õ°¡£¿ÄÇô¿ìÀ´¿´¿´£¬ÌáËÙÆäʵºÜ¼òµ¥¡£

                                    USB 2.0
                                    Ϊɶ´ï²»µ½60MB/s£¿

                                    ´ó¼Ò¶¼ÖªµÀUSB 2.0µÄÀíÂÛ´ø¿íÊÇ480Mbps£¬Ò²¾ÍÊÇ60MB/sµÄÊý¾Ý´«ÊäËÙÂÊ£¬µ«Êµ¼ÊʹÓÃÖÐÎÒÃǻᷢÏÖÕâ¸öÀíÂÛËÙ¶ÈÊǿӵùµÄ£¬³¤ÆÚÒÔÀ´USB 2.0×î¸ßʵ¼Ê´«ÊäËٶȱ»ÏÞÖÆÔÚ30MB/s×óÓÒ£¬Ö»ÄÜ´ïµ½ÀíÂÛ´ø¿íµÄÒ»°ë¡£ÕâÊÇÓÉÓÚÂäºóµÄЭÒéºÍ±àÂ뷽ʽÔì³ÉµÄ¡£

                                    USB 2.0
                                    ²ÉÓõÄÊÇ´«Í³µÄBulk-Only Transport(BOT)ЭÒ飬ÓÉÓÚûÓнøÐиÄÉÆ£¬Ëæ×ÅĿǰ¸ßËÙ´æ´¢É豸µÄ³öÏÖ£¬BOTЭÒé×è°­USB´«ÊäËÙÂʵÄÎÊÌâÒѾ­ÏÔÏÖ³öÀ´¡£¶øÄ¿Ç°µÄUSB 3.0ÐÂÔöÁËUSB Attached SCSI Protocol£¨UASP£©Ð­Ò飬ÐÂÔöÁËÁ½×éÊý¾Ý×ÜÏߣ¬Ö§³Ö¶àÃüÁî²¢·¢Ö´ÐкÍNCQ¶ÓÁй¦ÄÜ£¬ÕâÑù¾Í¿ÉÒÔ·¢»Ó³ö5GbpsµÄ¸ßËÙ´ø¿íÓÅÊÆ¡£

                                    ÁíÍ⣬USB 2.0ʹÓÃÁËNRZI£¨Non-Return-to-Zero Inverted£©±àÂ뷽ʽ£¬ËüÊÇ»ùÓÚ´®Ðд«Êäģʽ£¬´«ÊäÁ¬ÐøµÄ0¡¢1×Ö·û´®£¬ÓÉÓÚÆäÖÐÐèÒªÇ¿ÖÆ²å0ÒÔ±£³Ö·¢ËͶ˺ͽÓÊÕ¶ËÆµÂÊͬ²½»áÔì³ÉUSB 2.0´«Êä´ø¿íµÄÀË·Ñ¡£¶øUSB 3.0²ÉÓÃÁËʱÏÂÁ÷ÐеÄ8b/10b±àÂ뷽ʽ£¬ÓÐЧÊý¾ÝÀûÓÃÂÊΪ80%£¬Ò²¾ÍÊÇUSB 3.0µÄÓÐЧÊý¾Ý´«Êä´ø¿íΪ500MB/s¡£

                                    С²¹¶¡ÎªUSB 2.0´óÌáËÙ

                                    ΢ÈíĿǰ·Å³öÒ»¸ö²¹¶¡À´Ìá¸ßUSBÉ豸µÄ·ÃÎÊËÙ¶È£¬ÓÉÓÚËüÊÇÒ»¸öHotFixÈÈÐÞ¸´²¹¶¡£¬²¢Ã»ÓÐ×÷Ϊ³£¹æ²¹¶¡ËæÏµÍ³×Ô¶¯¸üУ¬Òò´ËÎÒÃÇÆ½Ê±Ò²¾ÍÌå»á²»µ½ËüµÄ×÷Óã¬ÄÇôÎÒÃÇ¿ÉÒÔ×Ô¼ºÀ´ÊÖ¶¯ÏÂÔØ°²×°¡£

                                    Ïà¹ØÎÄÕÂ

                                    ÔÞÖúÉÌÍÆ¹ãÁ´½Ó
                                    Copyright © 2003-2011 www.miragerouge.com All rights reserved.
                                    ÍøÃË²ÊÆ±