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USB82642 数据表(PDF) 40 Page - Microchip Technology

部件名 USB82642
功能描述  Automotive USB 2.0 Hub and Flash Media Card Controller Combo
PDF  64 Pages
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制造商  MICROCHIP [Microchip Technology]
网页  http://www.microchip.com
标志 MICROCHIP - Microchip Technology

USB82642 数据表(HTML) 40 Page - Microchip Technology

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USB82642
DS60001253F-page 40
 2012-2021 Microchip Technology Inc.
7.5.4.7
146h: Dynamic Number of Extended LUNs
7.5.4.8
147h-14Bh: LUN to Device Mapping
7.5.4.9
14Ch-17Bh: Reserved
7.5.4.10
17Ch -17Fh: Non-Volatile Storage Signature for Extended Configuration
Bit
Name
Description
7:0
DYN_NUM_
EXT_LUN
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 uti-
lizes a combo socket and the OEM wishes to have only a single icon dis-
played 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.
Byte
Name
Description
4:0
LUN_DEV_MAP
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 uti-
lizes a combo socket and the OEM wishes to have only a single icon dis-
played 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.
Byte
Name
Description
47:0
rsvd
Byte
Name
Description
3:0
NVSTORE_SIG2
This signature is used to verify the validity of the data in the upper 256 bytes if a
512-byte EEPROM is used, otherwise this bank is a read-only configuration
area. The signature must be set to ecf1.



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