USB4640 datasheet(32/64 Pages) SMSC

32 / 64 page

High Speed Inter-Chip (HSIC) USB 2.0 Hub and Flash Media Controller

Datasheet

Revision 1.0 (06-09-09)

SMSC USB4640/USB4640i

DATASHEET

8.4

Set bit 7 of bmAttribute to enable the registers in Table 8.4.

Note 8.1

This value is a UNICODE UTF-16LE encoded string value that meets the USB 2.0

specification (Revision 2.0, 2000). Values in double quotations without this note are ASCII

values.

Note 8.2

A value of “SM” will be overridden with “xD” once an xD-Picture Card has been identified.

Note 8.3

For a list of the most current 16-bit language ID’s defined by the USB-IF, please visit

http://www.unicode.org or consult The Unicode Standard, Worldwide Character Encoding,

(Version 4.0), The Unicode Consortium, Addison-Wesley Publishing Company, Reading,

Massachusetts.

8.4.1

EEPROM Data Descriptor Register Descriptions

8.4.1.1

00h: USB Serial String Descriptor Length

8.4.1.2

01h: USB Serial String Descriptor Type

8.4.1.3

02h-19h: USB Serial Number Option

Table 8.4 Internal Flash Media Controller Extended Configurations

ADDRESS

DESCRIPTION

INTERNAL DEFAULT VALUE

100h - 106h

CLUN0_ID_STR

Combo LUN 0 Identifier String

“COMBO”

107h- 129h

Not Applicable

N/A

12Ah-145h

Not applicable

00h

146h

Not Applicable

01h

147h - 14Bh

Not Applicable

01h, FFh, FFh, FFh, FFh

14Ch

Not Applicable

0Ah

14Dh-17Bh

Not Applicable

00h

17Ch-17Fh

NVSTORE_SIG2

Non-Volatile Storage Signature

“ecf1”

BYTE

NAME

DESCRIPTION

USB_SER_LEN

USB serial string descriptor length as defined by Section 9.6.7 “String” of the

USB 2.0 Specification (Revision 2.0, 2000). This field is the “bLength” which

describes the size of the string descriptor (in bytes).

BYTE

NAME

DESCRIPTION

USB_SER_TYP

USB serial string descriptor type as defined by Section 9.6.7 “String” of the

USB 2.0 Specification (Revision 2.0, 2000). This field is the

“bDescriptorType” which is a constant value associated with a string

descriptor type.

BYTE

NAME

DESCRIPTION

25:2

USB_SER_NUM

Maximum string length is 12 hex digits. Must be unique to each device.

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