[問題] usb支援127個設備
每個USB設備使用7bit的資料來定址,2的7次方為128
減去主機佔用的00位址,最多支援127個設備。
當然127個只是個理論值,實際上並不一定能達到
目前一般只能連接111個外設。
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還是不懂支援127個設備是什麼意思?
是指usb可以插127種設備?
還是MB上可以設127個USB port?
我覺得都不對
麻煩請教一下,謝謝
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