USB2640I Standard Microsystems Corp., USB2640I Datasheet - Page 35

• Manufacturer Part Number: USB2640I
• Description: Industrial Temperature Usb 2.0 Flash Media Controller And Usb Hub Combo
• Manufacturer: Standard Microsystems Corp.

Industrial Temperature USB 2.0 Flash Media Controller and USB Hub Combo
SMSC USB2640i/USB2641i
7.3.3.6
7.3.3.7
7.3.3.8
NUMBER
NUMBER
NUMBER
BYTE
BYTE
BIT
4:0
7:0
3:0
CEh-D2h: Inquiry Product String
D3h: Dynamic Number of Luns
D4h-D7h: Lun to Device Mapping
DYN_NUM_LUN
LUN_DEV_MAP
INQ_PRD_STR
BYTE NAME
BYTE NAME
BYTE NAME
FFh, FFh, FFh, FFh
UCHARS
UCHAR
UINT
2640
FFh
DATASHEET
35
If bit 4 of the 1st attribute byte is set, the device will
use these strings in response to a USB inquiry
command, instead of the USB Descriptor
Manufacturer and Product ID Strings.
These bytes are used to specify the number of LUNs
the device exposes to the host. These bytes are also
used for icon sharing by assigning more than one
LUN to a single icon. This is used in applications
where the device utilizes a combo socket and the
OEM wishes to have only a single icon displayed for
one or more interfaces.
If this field is set to "FF", the program assumes that
you are using the default value of "04" and will
display icons for xD, MS, and SD/MMC. If this field
is any other value besides "FF", you must specify the
LUN# assignments in the boxes starting with LUN 00
and going to (# of Icons to Display -1).
Regardless of this setting, the USB2640i/USB2641i
sets this value to ‘1’.
the device exposes to the host. These bytes are also
used for icon sharing by assigning more than one
LUN to a single icon. This is used in applications
where the device utilizes a combo socket and the
OEM wishes to have only a single icon displayed for
one or more interfaces.
If this field is set to "FF", the program assumes that
you are using the default value of "04" and will
display icons for xD, MS, and SD/MMC. If this field
is any other value besides "FF", you must specify
the LUN# assignments in the boxes starting with
LUN 00 and going to (# of Icons to Display -1).
Regardless of this setting, the USB2640i/USB2641i
sets these values to ‘FFh, 00h, 00h, 00h’.
These bytes are used to specify the number of LUNs
DESCRIPTION
DESCRIPTION
DESCRIPTION
Revision 2.0 (10-03-08)