USB3503 datasheet(59/82 Pages) SMSC

59 / 82 page

USB 2.0 HSIC High-Speed Hub Controller Optimized for Portable Applications

Datasheet

SMSC USB3503A

Revision 1.1 (02-07-13)

DATASHEET

7.5

String Descriptors

The USB3503 supports a 30 Character Manufacturer String Descriptor, a 30 Character Product String

and a 30 character Serial String.

7.5.1

String Descriptor Zero (specifies languages supported)

7.5.2

String Descriptor 1 (Manufacturer String)

7.5.3

String Descriptor 2 (Product String)

Table 7.12 String Descriptor Zero

OFFSET

FIELD

SIZE

VALUE

DESCRIPTION

Length

04h

Size of this Descriptor.

DescriptorType

03h

String Descriptor Type.

LANGID

xxxxh

Language ID code from LANG_ID_H and LANG_ID_L

registers

Table 7.13 String Descriptor 1, Manufacturer String

OFFSET

FIELD

SIZE

VALUE

DESCRIPTION

Length

yyh

Size of this Descriptor. The yy value is created by taking

the MFR_STR_LEN{bytes} + 2{bytes}

DescriptorType

03h

String Descriptor Type.

String

string

Manufacturer String

The string is located in the MFR_STR register and the

size (N) is held in the MFR_STR_LEN register

Table 7.14 String Descriptor 2, Product String

OFFSET

FIELD

SIZE

VALUE

DESCRIPTION

Length

yyh

Size of this Descriptor. The yy value is created by taking

the PRD_STR_LEN{bytes} + 2{bytes}

DescriptorType

03h

String Descriptor Type.

String

string

Product String

The string is located in the PROD_STR register and the

size (N) is held in the PRD_STR_LEN register

USB3503 Datasheet(PDF) 59 Page - SMSC Corporation

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