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Integrated USB 2.0 Compatible 3-Port Hub
Datasheet
SMSC USB2503/USB2503A 27 Revision 2.3 (08-27-07)
DATASHEET
5.3.9.3 Register 02h: Vendor ID (MSB) (Reset = 0x00)
5.3.9.4 Register 03h: Product ID (LSB) (Reset = 0x00)
5.3.9.5 Register 04h: Product ID (MSB) (Reset = 0x00)
5.3.9.6 Register 05h: Device ID (LSB) (Reset = 0x00)
5.3.9.7 Register 06h: Device ID (MSB) (Reset = 0x00)
5.3.9.8 Register 07h: CONFIG_BYTE_1 (Reset = 0x00)
BIT
NUMBER BIT NAME DESCRIPTION
7:0 VID_MSB Most Significant Byte of the Vendor ID.
BIT
NUMBER BIT NAME DESCRIPTION
7:0 PID_LSB Least Significant Byte of the Product ID.
BIT
NUMBER BIT NAME DESCRIPTION
7:0 PID_MSB Most Significant Byte of the Product ID.
BIT
NUMBER BIT NAME DESCRIPTION
7:0 DID_LSB Least Significant Byte of the Device ID.
BIT
NUMBER BIT NAME DESCRIPTION
7:0 DID_MSB Most Significant Byte of the Device ID.
BIT
NUMBER BIT NAME DESCRIPTION
7 SELF_BUS_PWR Self or Bus Power: Selects between Self- and Bus-Powered operation.
0 = Bus-Powered operation.
1 = Self-Powered operation.
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.