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LAN9500AI 数据表(PDF) 38 Page - Microchip Technology |
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LAN9500AI 数据表(HTML) 38 Page - Microchip Technology |
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38 / 213 page  LAN950x DS00001875A-page 38 2010 - 2015 Microchip Technology Inc. 5.3.2.3 Get Descriptor Note 5-17 Selects descriptor type. The support descriptors for this command are Device, Configuration, String, Device Qualifier, and Other Speed Configuration. Note 5-18 Set to zero or Language ID. 5.3.2.4 Get Interface TABLE 5-17: FORMAT OF GET CONFIGURATION DATA STAGE Offset Field 0h Returns bConfigurationValue TABLE 5-18: FORMAT FOR GET DESCRIPTOR SETUP STAGE Offset Field Value 0h bmRequestType 80h 1h bRequest 06h 2h wValue Note 5-17 4h wIndex Note 5-18 6h wLength Length of descriptor Note: The Interface and Endpoint descriptors are not supported by this command. The UDC will stall these requests. TABLE 5-19: FORMAT OF GET INTERFACE SETUP STAGE Offset Field Value 0h bmRequestType 81h 1h bRequest 0Ah 2h wValue 00h 4h wIndex 00h 6h wLength 01h TABLE 5-20: GET INTERFACE DATA STAGE Offset Field 0h Alternate Setting Note: The device only supports a single interface. |
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