Integrated USB 2.0 Compatible 7-Port Hub
Datasheet
Table 5.1 User-Defined Descriptor Data (continued)
DEFAULT
CFG
SELF
DEFAULT
CFG
BUS
(HEX)
BYTE
MSB:
LSB
SIZE
(BYTES)
FIELD
(HEX)
DESCRIPTION
Hub Controller
Max Current
Bus-Powered
E
1
1
64
64
Max Current (expressed in 2mA units).
Power-On
Time
F
32
32
Time until power is stable.
5.2.3.1
EEPROM Offset 1:0(h) - Vendor ID
BIT
NUMBER
BIT NAME
DESCRIPTION
15:8
7:0
VID_MSB
VID_LSB
Most Significant Byte of the Vendor ID.
Least Significant Byte of the Vendor ID.
5.2.3.2
EEPROM Offset 3:2(h) - Product ID
BIT
NUMBER
BIT NAME
DESCRIPTION
DESCRIPTION
DESCRIPTION
15:8
7:0
PID_MSB
PID_LSB
Most Significant Byte of the Product ID.
Least Significant Byte of the Product ID.
5.2.3.3
EEPROM Offset 5:4(h) - Device ID
BIT
NUMBER
BIT NAME
15:8
7:0
DID_MSB
DID_LSB
Most Significant Byte of the Device ID.
Least Significant Byte of the Device ID.
5.2.3.4
EEPROM Offset 6(h) - CONFIG_BYTE_1
BIT
NUMBER
BIT NAME
7
SELF_BUS_PWR
Self or Bus Power: Selects between Self- and Bus-Powered operation.
0 = Bus-Powered operation. (BUS Default)
1 = Self-Powered operation. (SELF Default)
Note: If Dynamic Power Switching is enabled, this bit is ignored and the
SELF_PWR pin is used to determine if the hub is operating from self or bus
power.
6
PORT_IND
Port Indicator Support: Indicates implementation of LED indicators
0 = No LED indicators.
1 = LED indicators.
Revision 2.3 (08-27-07)
SMSC USB2507
DATA2S0HEET
SMSC [ SMSC CORPORATION ]
