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Specification
NET2270 USB Interface Controller
______________________________________________________________________________
NetChip Technology, Inc., 2003
335 Pioneer Way, Mountain View, California 94041
TEL (650) 526-1490
FAX (650) 526-1494
http://www.netchip.com
Rev 3.6, April 17, 2003
72
Get Configuration Descriptor (continued)
Offset
Number of
Bytes
Description
Suggested Value
Interface 1 Descriptor
0
1
Size of this descriptor in bytes
09h
1
1
Type (interface)
04h
2
1
Number of this interface
01h
3
1
Alternate Interface
00h
4
1
Number of endpoints used by this interface
(excluding Endpoint 0)
01h
5
1
Class Code
FFh
6
1
Sub Class Code
00h
7
1
Device Protocol
00h
8
1
Index of string descriptor describing this interface
00h
Bulk OUT Endpoint 3 Descriptor
0
1
Size of this descriptor
07h
1
1
Descriptor Type (endpoint)
05h
2
1
Endpoint Address
bit 7 = direction (1 = IN, 0 = OUT)
bits 6:4 = reserved
bits 3:0 = endpoint number
03h
3
1
Endpoint Attributes
bits 7:2 = reserved
bits 1:0
00 = Control
01 = Isochronous
10 = Bulk
11 = Interrupt
02h
4
2
Maximum packet size of this endpoint for bulk mode
0200h
6
1
Maximum NAK rate of the endpoint.
Determined by Local CPU
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