[{"title":"( 11 个子文件 9.74MB ) USB协议 USB Specification","children":[{"title":"USB协议","children":[{"title":"USB+2[1].0协议.pdf <span style='color:#111;'> 1.10MB </span>","children":null,"spread":false},{"title":"USB Spec20.pdf <span style='color:#111;'> 5.71MB </span>","children":null,"spread":false},{"title":"usb 中文协议","children":[{"title":"01 intro.pdf <span style='color:#111;'> 272.48KB </span>","children":null,"spread":false},{"title":"07 USB电气特性(缩写).pdf <span style='color:#111;'> 359.44KB </span>","children":null,"spread":false},{"title":"09 USB设备架构.pdf <span style='color:#111;'> 265.49KB </span>","children":null,"spread":false},{"title":"10 usb主机硬件软件.pdf <span style='color:#111;'> 181.61KB </span>","children":null,"spread":false},{"title":"11 集线器规范_1.pdf <span style='color:#111;'> 361.69KB </span>","children":null,"spread":false},{"title":"02 术语和缩略词.pdf <span style='color:#111;'> 72.20KB </span>","children":null,"spread":false},{"title":"05 USB数据流模型.pdf <span style='color:#111;'> 416.60KB </span>","children":null,"spread":false},{"title":"08 协议层.pdf <span style='color:#111;'> 244.66KB </span>","children":null,"spread":false}],"spread":true},{"title":"USB Spec11.pdf <span style='color:#111;'> 1.93MB </span>","children":null,"spread":false}],"spread":true}],"spread":true}]