EVB-USB4640 SMSC, EVB-USB4640 Datasheet - Page 40

• Manufacturer Part Number: EVB-USB4640
• Description: EVALUATION BOARD FOR USB4640
• Manufacturer: SMSC

Specifications of EVB-USB4640

• Main Purpose: Interface, USB 2.0 Hub
• Embedded: *
• Utilized Ic / Part: USB4640
• Primary Attributes: *
• Secondary Attributes: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 638-1107

Revision 1.0 (06-09-09)
8.4.3.7
8.4.3.8
8.4.3.9
8.4.4
8.4.4.1
8.4.4.2
BYTE
BYTE
BIT
BIT
BIT
7:0
7:0
3:0
2:0
7:0
D3h: Dynamic Number of LUNs
D4h-D7h: Device to LUN Mapping
D8h-DDh: Reserved
Hub Controller Configurations
DEh: Vendor ID (LSB)
DFh: Vendor ID (MSB)
DYN_NUM_LUN
DEV_LUN_MAP
BYTE NAME
BYTE NAME
VID_MSB
Reserved
VID_LSB
NAME
NAME
NAME
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).
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).
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.
These registers map a device controller (SD/MMC, SM
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
8.4.3.7, "D3h: Dynamic Number of LUNs," on page
Reserved.
DATASHEET
High Speed Inter-Chip (HSIC) USB 2.0 Hub and Flash Media Controller
40
DESCRIPTION
DESCRIPTION
DESCRIPTION
DESCRIPTION
DESCRIPTION
40.
SMSC USB4640/USB4640i
(Note
8.2), and MS)
Section
Datasheet