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USB2251 Folha de dados(PDF) 28 Page - Microchip Technology

Nome de Peças USB2251
Descrição Electrónicos  Ultra Fast USB 2.0 Multi-Slot Flash Media Controller
PDF  43 Pages
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Fabricante Electrônico  MICROCHIP [Microchip Technology]
Página de início  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

USB2251 Folha de dados(HTML) 28 Page - Microchip Technology

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USB2250/50i/51/51i
DS00002005A-page 28
 2009 - 2015 Microchip Technology Inc.
7.2.4.5
A8h: LED Blink Interval
7.2.4.6
A9h: LED Blink Duration
7.2.5
DEVICE ID STRINGS
These bytes are used to specify the LUN descriptor returned by the device. These bytes are used in combination with
the device to LUN mapping bytes in applications where the OEM wishes to reorder and rename the LUNs. If multiple
devices are mapped to the same LUN (a COMBO LUN), then the CLUN#_ID_STR will be used to name the COMBO
LUN instead of the individual device strings. When applicable, the "SM" value will be overridden with xD once an xD-
Picture Card has been identified.
7.2.5.1
AAh-B0h: Device 0 Identifier String
7.2.5.2
B1h-B7h: Device 1 Identifier String
7.2.5.3
B8h-BEh: Device 2 Identifier String
7.2.5.4
BFh-C5h: Device 3 Identifier String
7.2.5.5
C6h-CDh: Inquiry Vendor String
Byte
Name
Description
0
LED_BLK_INT
The blink rate is programmable in 50 ms intervals. The high bit (7) indicates
an idle state:
‘0’ - Off
‘1’ - On
The remaining bits (6:0) are used to determine the blink interval up to a max
of 63 x 50 ms.
Byte
Name
Description
1
LED_BLK_DUR
LED Blink After Access. This byte is used to designate the number of seconds
that the LED will continue to blink after a drive access. Setting this byte to "05"
will cause the LED to blink for 5 seconds after a drive access.
Byte
Name
Description
6:0
DEV0_ID_STR
Not applicable.
Byte
Name
Description
6:0
DEV1_ID_STR
This ID string is associated with the Memory Stick device.
Byte
Name
Description
6:0
DEV2_ID_STR
This ID string is associated with the Smart Media device.
Byte
Name
Description
6:0
DEV3_ID_STR
This ID string is associated with the Secure Digital / MultiMediaCard device.
Byte
Name
Description
7:0
INQ_VEN_STR
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.



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