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USB3803 Datasheet(PDF) 61 Page - Microchip Technology

Part # USB3803
Description  USB 2.0 High-Speed Hub Controller Optimized
PDF  99 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

USB3803 Datasheet(HTML) 61 Page - Microchip Technology

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 2014-2015 Microchip Technology Inc.
DS00001691B-page 61
USB3803
7.5.2
DEVICE QUALIFIER DESCRIPTOR
The following table provides device qualifier values for Full-Speed operation.
7.5.3
CONFIGURATION DESCRIPTOR
The following table provides configuration descriptor values for High-Speed operation.
15
Product
1
yyh
If STRING_EN =0 Optional string is not supported, and
yy = 00.
If STRING_EN = 1, String support is enabled, and
yy = 02
16
SerialNumber
1
zzh
If STRING_EN =0 Optional string is not supported, and
zz = 00.
If STRING_EN = 1, String support is enabled, and
zz = 03
17
NumConfigurations
1
01h
Supports 1 configuration.
TABLE 7-24:
DEVICE QUALIFIER (FULL-SPEED)
Offset
Field
Size
Value
Description
0
Length
1
0Ah
Size of this Descriptor.
1
DescriptorType
1
06h
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
00h
Protocol code.
7
MaxPacketSize0
1
40h
64-byte packet size for the other speed.
8
NumConfigurations
1
01h
Supports 1 other speed configuration.
9
Reserved
1
00h
Reserved.
TABLE 7-25:
CONFIGURATION DESCRIPTOR (HIGH-SPEED)
Offset
Field
Size
Value
Description
0
Length
1
09h
Size of this Descriptor.
1
DescriptorType
1
02h
Configuration Descriptor Type.
2
TotalLength
2
yyyyh
Total combined length of all descriptors for this configu-
ration (configuration, interface, endpoint, and class- or
vendor-specific).
yyyyh = 0029h.
4
NumInterfaces
1
01h
Number of Interface supported by this configuration.
TABLE 7-23:
DEVICE DESCRIPTOR (HIGH-SPEED) (CONTINUED)
Offset
Field
Size
Value
Description



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