[{"title":"( 2 个子文件 1.47MB ) ULPI (UTMI+ Low Pin Interface) 规范","children":[{"title":"ULPI (UTMI+ Low Pin Interface)","children":[{"title":"ULPI Design Guide.pdf <span style='color:#111;'> 375.29KB </span>","children":null,"spread":false},{"title":"ULPI_v1_1.pdf <span style='color:#111;'> 2.44MB </span>","children":null,"spread":false}],"spread":true}],"spread":true}]