參數(shù)資料
型號(hào): TUSB3410VF
英文描述: BUS CONTROLLER
中文描述: 總線控制器
文件頁數(shù): 79/92頁
文件大?。?/td> 317K
代理商: TUSB3410VF
11
9
Table 11
6. USB Descriptors Header (Continued)
OFFSET
TYPE
SIZE
VALUE
DESCRIPTION
40
bAlternateSetting
1
0x00
Value used to select alternate setting for the interface identified in the prior field
41
bNumEndpoints
1
0x01
Number of endpoints used by this interface (excluding endpoint zero). If this value
is zero, this interface only uses the default control pipe.
42
bInterfaceClass
1
0xFF
The interface class is vendor specific.
43
bInterfaceSubClass
1
0x00
44
bInterfaceProtocol
1
0x00
45
iInterface
1
0x00
Index of string descriptor describing this interface
46
bLength
1
0x07
Size of this descriptor in bytes
47
bDescriptorType
1
0x05
ENDPOINT descriptor type
Bit 3
0: The endpoint number
Bit 7:
Direction
0 = OUT endpoint
1 = IN endpoint
Bit 1
0: Transfer Type
10 = Bulk
11 = Interrupt
48
bEndpointAddress
1
0x01
49
bmAttributes
1
0x02
50
wMaxPacketSize
2
0x0040
Maximum packet size this endpoint is capable of sending or receiving when this
configuration is selected.
52
bInterval
1
0x00
Interval for polling endpoint for data transfers. Expressed in milliseconds.
53
Data Type
1
0x05
USB String descriptor
54
Data Size (low byte)
1
0x1A
26(0x1A) = 4 + 6 + 6 + 10
55
Data Size (high byte)
1
0x00
56
Check Sum
1
0x50
Checksum of data below
57
bLength
1
0x04
Size of string 0 descriptor in bytes
58
bDescriptorType
1
0x03
STRING descriptor type
59
wLANGID[0]
2
0x0409
English
61
bLength
1
0x06
Size of string 1 descriptor in bytes
62
bDescriptorType
1
0x03
STRING descriptor type
63
bString
2
T
,0x00
UNICODE,
T
is the first byte.
65
2
I
,0x00
TI = 0x54, 0x49
67
bLength
1
0x06
Size of string 2 descriptor in bytes
68
bDescriptorType
1
0x03
STRING descriptor type
69
bString
2
u
,0x00
UNICODE,
u
is the first byte.
71
2
C
,0x00
uC
= 0x75, 0x43
73
bLength
1
0x0A
Size of string 3 descriptor in bytes
74
bDescriptorType
1
0x03
STRING descriptor type
75
bString
2
3
,0x00
UNICODE,
T
is the first byte.
77
2
4
,0x00
3410
= 0x33, 0x34, 0x31, 0x30
79
2
1
,0x00
81
2
0
,0x00
83
Data Type
1
0x00
End of header
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