Data Sheet S13918EJ3V0DS

21

2.6 Standard String Descriptor 0

Standard string descriptor 0 cannot be used in a standard ROM code product.

Value

Standard ROM code

product

No.

Field

Size

(Bytes)

Contents

003

004

Mask

ROM code

product

0

bLength

1

Shows the size of standard string descriptor 0.

0x00

0x00

0x04

1

bDescriptorType

1

Shows that this is a standard string descriptor.

0x00

0x00

0x03

2

wLANGID[0]

2

Shows the LanguageID of standard string descriptor

0. The LanguageID used is “0x0409” (Generic).

The

µPD72012 uses this LanguageID in common for

all string descriptors.

0x0000

0x0000

0x0409

2.7 Standard String Descriptors 1 Through 5

Standard string descriptors 1 through 5 cannot be used in a standard ROM code product.

This format is the common format for standard string descriptors #1 through #5 of the

µPD72012.

Value

Standard ROM code

product

No.

Field

Size

(Bytes)

Contents

003

004

Mask

ROM code

product

0

bLength

1

Shows the size of standard string descriptors 1

through 5. Its value is fixed at 66 bytes (0x42). The

string itself is this size –2 (64 bytes).

0x00

0x00

0x42

1

bDescriptorType

1

Shows that this is a standard string descriptor.

0x00

0x00

0x03

2

bString

64

Stores the standard string descriptor in UNICODE.

A string requires 2 bytes for each character. Strings

of up to 32 characters can be specified. If there are

white space characters, pad using NULL characters

(0x0000).

All 0

All 0

–

Remark

Five kinds of standard string descriptors can be defined and these describe the following contents

using 32 UNICODE characters.

Index

Contents

1

Comment about manufacturer (Manufacture) that uses HUB

2

Comment about product (Product) that uses HUB

3

Serial number (SerialNumber) of product that uses HUB

4

Comment about configuration (Configuration) of product that uses HUB

5

Comment about interface (Interface) of product that uses HUB

Refer to “The Unicode Standard, Worldwide Character Encoding, Version 1.0, Volume 1 and 2”, The Unicode

Consortium, Addison-Wesley Publishing Company, Reading, Massachusetts regarding UNICODE.