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LAN9500AI データシート(PDF) 33 Page - Microchip Technology |
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LAN9500AI データシート(HTML) 33 Page - Microchip Technology |
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33 / 213 page  2010 - 2015 Microchip Technology Inc. DS00001875A-page 33 LAN950x 5.3.1.6.4 Endpoint 1 (Bulk In) Descriptor Table 5-7 shows the default value for Endpoint Descriptor 1. This descriptor is not initialized from values stored in EEPROM. Note 5-9 64 bytes for Full-Speed mode. 512 bytes for Hi-Speed mode. 5.3.1.6.5 Endpoint 2 (Bulk Out) Descriptor Table 5-8 shows the default value for Endpoint Descriptor 2. This descriptor is not initialized from values stored in EEPROM. Note 5-10 64 bytes for Full-Speed mode. 512 bytes for Hi-Speed mode. 5.3.1.6.6 Endpoint 3 (Interrupt) Descriptor Table 5-9 shows the default value for Endpoint Descriptor 3. Only the bInterval field of this descriptor is initialized from EEPROM. TABLE 5-7: ENDPOINT 1 DESCRIPTOR Offset Field Size (Bytes) Default Value Loaded from EEPROM Description 00h bLength 1 07h No Size of Descriptor in bytes 01h bDescriptorType 1 05h No Endpoint Descriptor 02h bEndpointAddress 1 81h No Endpoint Address 03h bmAttributes 1 02h No Bulk Transfer Type 04h wMaxPacketSize 2 Note 5-9 No Maximum Packet Size this endpoint is capable of sending. 06h bInterval 1 00h No Interval for polling endpoint data transfers. Ignored for bulk endpoints. TABLE 5-8: ENDPOINT 2 DESCRIPTOR Offset Field Size (Bytes) Default Value Loaded from EEPROM Description 00h bLength 1 07h No Size of Descriptor in bytes 01h bDescriptorType 1 05h No Endpoint Descriptor 02h bEndpointAddress 1 02h No Endpoint Address 03h bmAttributes 1 02h No Bulk Transfer Type 04h wMaxPacketSize 2 Note 5-10 No Maximum Packet Size this endpoint is capable of sending. 06h bInterval 1 00h No Interval for polling endpoint data transfers. Ignored for bulk endpoints. TABLE 5-9: ENDPOINT 3 DESCRIPTOR Offset Field Size (Bytes) Default Value Loaded from EEPROM Description 00h bLength 1 07h No Size of Descriptor in bytes 01h bDescriptorType 1 05h No Endpoint Descriptor 02h bEndpointAddress 1 83h No Endpoint Address 03h bmAttributes 1 03h No Interrupt Transfer Type |
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