USB2251-NU-05 Standard Microsystems (SMSC), USB2251-NU-05 Datasheet - Page 33

• Manufacturer Part Number: USB2251-NU-05
• Description: ULTRA FAST USB 2.0 MULTI-SLOT FLASH MEDI
• Manufacturer: Standard Microsystems (SMSC)

Specifications of USB2251-NU-05

• Lead Free Status / RoHS Status: Supplier Unconfirmed

Ultra Fast USB 2.0 Multi-Slot Flash Media Controller
Datasheet
SMSC USB2250/50i/51/51i
8.2.5.1
8.2.5.2
8.2.5.3
8.2.5.4
8.2.5.5
8.2.5.6
8.2.5.7
BYTE
BYTE
BYTE
BYTE
BYTE
BYTE
BIT
6:0
6:0
6:0
6:0
7:0
4:0
7:0
AAh-B0h: Device 0 Identifier String
B1h-B7h: Device 1 Identifier String
B8h-BEh: Device 2 Identifier String
BFh-C5h: Device 3 Identifier String
C6h-CDh: Inquiry Vendor String
CEh-D2h: Inquiry Product String
D3h: Dynamic Number of LUNs
DYN_NUM_LUN
INQ_VEN_STR
INQ_PRD_STR
DEV0_ID_STR
DEV1_ID_STR
DEV2_ID_STR
DEV3_ID_STR
NAME
NAME
NAME
NAME
NAME
NAME
NAME
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.
Not applicable.
This ID string is associated with the Memory Stick device.
This ID string is associated with the Smart Media device.
This ID string is associated with the Secure Digital / MultiMediaCard device.
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 and icons will be configured per the default configuration.
DATASHEET
33
DESCRIPTION
DESCRIPTION
DESCRIPTION
DESCRIPTION
DESCRIPTION
DESCRIPTION
DESCRIPTION
Revision 2.0 (09-29-09)