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LAN9730 датащи(PDF) 38 Page - Microchip Technology

номер детали LAN9730
подробное описание детали  High-Speed Inter-Chip USB 2.0 to 10/100 Ethernet Controller
PDF  222 Pages
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производитель  MICROCHIP [Microchip Technology]
домашняя страница  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

LAN9730 датащи(HTML) 38 Page - Microchip Technology

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LAN9730/LAN9730i
DS00001946A-page 38
 2012-2015 Microchip Technology Inc.
4.3.1.6.5
Endpoint 2 (Bulk-Out) Descriptor
Table 4-8 shows the default value for Endpoint Descriptor 2. This descriptor is not initialized from values stored in
EEPROM.
Note 4-9
512 bytes for Hi-Speed mode.
4.3.1.6.6
Endpoint 3 (Interrupt) Descriptor
Table 4-9 shows the default value for Endpoint Descriptor 3. Only the bInterval field of this descriptor is initialized from
EEPROM.
Note 4-10
This value is loaded from the EEPROM. If no EEPROM exists then this value defaults to 04h.
TABLE 4-8:
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 4-9
No
Maximum packet size this Endpoint is
capable of sending.
06h
bInterval
1
00h
No
Interval for polling Endpoint data trans-
fers. Ignored for bulk Endpoints
TABLE 4-9:
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
04h
wMaxPacketSize
2
10h
No
Maximum packet size this Endpoint is
capable of sending.
06h
bInterval
1
Note 4-10
Yes
Interval for polling Endpoint data trans-
fers.



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