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USB3503 Datasheet(PDF) 55 Page - SMSC Corporation

Part # USB3503
Description  USB 2.0 HSIC High-Speed Hub Controller Optimized for Portable Applications
PDF  82 Pages
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Manufacturer  SMSC [SMSC Corporation]
Direct Link  http://www.smsc.com
Logo SMSC - SMSC Corporation

USB3503 Datasheet(HTML) 55 Page - SMSC Corporation

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USB 2.0 HSIC High-Speed Hub Controller Optimized for Portable Applications
Datasheet
SMSC USB3503A
55
Revision 1.1 (02-07-13)
DATASHEET
7.3.4
Endpoint Descriptor (Single-TT)
The following table provides endpoint descriptor values for Single-TT operation.
7.3.5
Interface Descriptor (Multi-TT)
The following table provides interface descriptor values for High-Speed Multi-TT operation.
7
InterfaceProtocol
1
01h
Single-TT.
8
Interface
1
00h
Index of the string descriptor describing this interface
(strings not supported).
Table 7.8 Endpoint Descriptor (For Status Change Endpoint, Single-TT)
OFFSET
FIELD
SIZE
VALUE
DESCRIPTION
0
Length
1
07h
Size of this Descriptor.
1
DescriptorType
1
05h
Endpoint Descriptor Type.
2
EndpointAddress
1
81h
The address of the endpoint on the USB device.
3
Attributes
1
03h
Describes the endpoint’s attributes. (interrupt only, no
synchronization, data endpoint).
4
MaxPacketSize
2
0001h
Maximum packet size for this endpoint.
6
Interval
1
0Ch
Interval for polling endpoint for data transfers (Maximum
Possible).
Table 7.9 Interface Descriptor (Multi-TT, High-Speed)
OFFSET
FIELD
SIZE
VALUE
DESCRIPTION
0
Length
1
09h
Size of this Descriptor.
1
DescriptorType
1
04h
Interface Descriptor Type.
2
InterfaceNumber
1
00h
Number of this interface.
3
AlternateSetting
1
01h
Value used to select this alternate setting for the
interface.
4
NumEndpoints
1
01h
Number of endpoints used by this interface (not
including endpoint 0).
5
InterfaceClass
1
09h
Hub class code.
6
InterfaceSubclass
1
00h
Subclass code.
7
InterfaceProtocol
1
02h
Multiple-TTs.
8
Interface
1
00h
Index of the string descriptor describing this interface
(strings not supported).
Table 7.7 Interface Descriptor (High-Speed, Single-TT) (continued)
OFFSET
FIELD
SIZE
VALUE
DESCRIPTION



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