USB2504 SMSC Corporation, USB2504 Datasheet - Page 23

• Manufacturer Part Number: USB2504
• Description: Integrated USB 2.0 Compatible 4-Port Hub
• Manufacturer: SMSC Corporation

Integrated USB 2.0 Compatible 4-Port Hub
Datasheet
SMSC USB2504/USB2504A
5.2.3.6
5.2.3.7
5.2.3.8
NUMBER
NUMBER
NUMBER
BIT
BIT
BIT
7:0
7:0
7:0
EEPROM Offset 8(h) - Non-Removable Device
EEPROM Offset 9(h) - Port Disable For Self Powered Operation
EEPROM Offset A(h) - Port Disable For Bus Powered Operation
PORT_DIS_SP
PORT_DIS_BP
NR_DEVICE
BIT NAME
BIT NAME
BIT NAME
Non-Removable Device: Indicates which port(s) include non-removable devic-
es. ‘0’ = port is removable, ‘1’ = port is non-removable.
Bit 7= Reserved
Bit 6= Reserved
Bit 5= Reserved
Bit 4= 1; Port 4 non-removable.
Bit 3= 1; Port 3 non-removable.
Bit 2= 1; Port 2 non-removable.
Bit 1= 1; Port 1 non removable.
Bit 0 is Reserved, always = ‘0’.
Port Disable Self-Powered: Disables 1 or more contiguous ports. ‘0’ = port
is available, ‘1’ = port is disabled.
Bit 7= Reserved
Bit 6= Reserved
Bit 5= Reserved
Bit 4= 1; Port 4 is disabled.
Bit 3= 1; Port 3 is disabled.
Bit 2= 1; Port 2 is disabled.
Bit 1= 1; Port 1 is disabled.
Bit 0 is Reserved, always = ‘0’
Port Disable Bus-Powered: Disables 1 or more contiguous ports. ‘0’ = port
is available, ‘1’ = port is disabled.
Bit 7= Reserved
Bit 6= Reserved
Bit 5= Reserved
Bit 4= 1; Port 4 is disabled.
Bit 3= 1; Port 3 is disabled.
Bit 2= 1; Port 2 is disabled.
Bit 1= 1; Port 1 is disabled.
Bit 0 is Reserved, always = ‘0’
DATASHEET
23
DESCRIPTION
DESCRIPTION
DESCRIPTION
Revision 2.1 (12-06-06)