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USB4640 数据表(PDF) 40 Page - SMSC Corporation

部件名 USB4640
功能描述  High Speed Inter-Chip (HSIC) USB 2.0 Hub and Flash Media Controller
PDF  64 Pages
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制造商  SMSC [SMSC Corporation]
网页  http://www.smsc.com
标志 SMSC - SMSC Corporation

USB4640 数据表(HTML) 40 Page - SMSC Corporation

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High Speed Inter-Chip (HSIC) USB 2.0 Hub and Flash Media Controller
Datasheet
Revision 1.0 (06-09-09)
40
SMSC USB4640/USB4640i
DATASHEET
8.4.3.7
D3h: Dynamic Number of LUNs
8.4.3.8
D4h-D7h: Device to LUN Mapping
8.4.3.9
D8h-DDh: Reserved
8.4.4
Hub Controller Configurations
8.4.4.1
DEh: Vendor ID (LSB)
8.4.4.2
DFh: Vendor ID (MSB)
BIT
NAME
DESCRIPTION
7:0
DYN_NUM_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
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
DEV_LUN_MAP
These registers map a device controller (SD/MMC, SM (Note 8.2), and MS)
to a Logical Unit Number (LUN). The device reports the mapped LUNs to
the USB host in the USB descriptor during enumeration. The icon installer
associates custom icons with the LUNs specified in these fields.
Setting a register to "FF" indicates that the device is not mapped. Setting all
of the DEV_LUN_MAP registers for all devices to "FF" forces the use of the
default mapping configuration. Not all configurations are valid. Valid
configurations depend on the hardware, packaging, and OEM board layout.
The number of unique LUNs mapped must match the value in the Section
8.4.3.7, "D3h: Dynamic Number of LUNs," on page 40.
BYTE
NAME
DESCRIPTION
2:0
Reserved
Reserved.
BIT
BYTE 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
BYTE 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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