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USB82640 数据表(PDF) 30 Page - Microchip Technology

部件名 USB82640
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

USB82640 数据表(HTML) 30 Page - Microchip Technology

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USB82640
DS60001312A-page 30
 2010-2015 Microchip Technology Inc.
7.3.3.7
D3h: Dynamic Number of LUNs
7.3.3.8
D4h-D7h: LUN to Device Mapping
7.3.3.9
D8h-DAh: MS Bus Timing Control
7.3.3.10
DBh-DDh: SD/MMC Bus Timing Control
7.3.3.11
DEh: Vendor ID (LSB)
7.3.3.12
DFh: Vendor ID (MSB)
Bit
Name
Description
7:0
DYN_NUM_LUN
This byte is 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.
Byte
Name
Description
3:0
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
values and LUNs will be configured per the default configuration.
Byte
Name
Description
2:0
MS_BUS_TIMING
The values for these bytes are set internally and must not be altered.
Byte
Name
Description
2:0
SD_1_MMC_BUS_
TIMING
The values for these bytes are set internally and must not be altered.
Bit
Name
Description
7:0
VID_LSB
Least Significant Byte of the Vendor ID. This is a 16-bit value that uniquely
identifies the vendor of the user device (assigned by USB Implementer’s
Forum).
Bit
Name
Description
7:0
VID_MSB
Most Significant Byte of the Vendor ID. This is a 16-bit value that uniquely
identifies the vendor of the user device (assigned by USB Implementer’s
Forum).



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