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USB3503 Datasheet(PDF) 52 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) 52 Page - SMSC Corporation

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USB 2.0 HSIC High-Speed Hub Controller Optimized for Portable Applications
Datasheet
SMSC USB3503A
52
Revision 1.1 (02-07-13)
DATASHEET
7.2.4
Endpoint Descriptor (Single-TT)
The following table provides endpoint descriptor values for Single-TT operation.
7.3
Hub Attached as a High-Speed Device (Customer-Configured
as Multi-TT Capable)
The following tables provide descriptor information for Customer-Configured Multi-TT High-Speed
devices.
7.3.1
Standard Device Descriptor
The following table provides device descriptor values for High-Speed operation.
7
InterfaceProtocol
1
00h
Single-TT.
8
Interface
1
00h
Index of the string descriptor describing this interface
(strings not supported).
Table 7.4 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 7.5 Device Descriptor (High-Speed)
OFFSET
FIELD
SIZE
VALUE
DESCRIPTION
0
Length
1
12
Size of this Descriptor
1
DescriptorType
1
01h
Device Descriptor Type.
2
USB
2
0200h
USB Specification Release Number.
4
DeviceClass
1
09h
Class code assigned by USB-IF for Hubs.
5
DeviceSubClass
1
00h
Class code assigned by USB-IF for Hubs.
6
DeviceProtocol
1
02h
Protocol code (Multi-TTs).
Table 7.3 Interface Descriptor (High-Speed, Single-TT) (continued)
OFFSET
FIELD
SIZE
VALUE
DESCRIPTION



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