USB4640 Standard Microsystems Corp., USB4640 Datasheet - Page 33

• Manufacturer Part Number: USB4640
• Description: High Speed Inter-chip Hsic Usb 2.0 Hub And Flash Media Controller
• Manufacturer: Standard Microsystems Corp.

High Speed Inter-Chip (HSIC) USB 2.0 Hub and Flash Media Controller
Datasheet
SMSC USB4640/USB4640i
8.4.1.4
8.4.1.5
8.4.1.6
8.4.1.7
8.4.1.8
8.4.1.9
8.4.1.10
BYTE
BYTE
BYTE
BYTE
BYTE
BYTE
BYTE
1:0
1:0
0
1
2
3
0
1Ah-1Bh: USB Vendor ID Option
1Ch-1Dh: USB Product ID Option
1Eh: USB Language Identifier Descriptor Length
1Fh: USB Language Identifier Descriptor Type
20h: USB Language Identifier Least Significant Byte
21h: USB Language Identifier Most Significant Byte
22h: USB Manufacturer String Descriptor Length
USB_LANG_LEN
USB_LANG_TYP
USB_MFR_STR
USB_LANG_ID
USB_LANG_ID
USB_VID
USB_PID
NAME
NAME
NAME
NAME
NAME
NAME
NAME
_MSB
_LEN
_LSB
USB manufacturer 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).
This ID is unique for every vendor. The vendor ID is assigned by the USB
Implementer’s Forum.
This ID is unique for every product. The product ID is assigned by the vendor.
USB language ID 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).
USB language ID 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.
English language code = ‘0409’. See
language ID’s defined by the USB-IF.
English language code = ‘0409’. See
language ID’s defined by the USB-IF.
DATASHEET
33
DESCRIPTION
DESCRIPTION
DESCRIPTION
DESCRIPTION
DESCRIPTION
DESCRIPTION
DESCRIPTION
Note 8.3
Note 8.3
to reference additional
to reference additional
Revision 1.0 (06-09-09)