USB2504A-JT Standard Microsystems (SMSC), USB2504A-JT Datasheet - Page 22

• Manufacturer Part Number: USB2504A-JT
• Manufacturer: Standard Microsystems (SMSC)

Specifications of USB2504A-JT

• Operating Temperature (min): 0C
• Operating Temperature Classification: Commercial
• Operating Temperature (max): 70C
• Package Type: TQFP
• Rad Hardened: No
• Lead Free Status / RoHS Status: Compliant

Revision 2.3 (08-27-07)
5.2.3.5
NUMBER
NUMBER
BIT
BIT
2:1
5:4
2:0
3
0
7
6
3
EEPROM Offset 7(h) - CONFIG_BYTE_2
CURRENT_SNS
EOP_DISABLE
COMPOUND
PORT_PWR
OC_TIMER
BIT NAME
BIT NAME
DYNAMIC
Reserved
Reserved
EOP Disable: Disables EOP generation at EOF1 when no downstream
directed traffic is in progress.
0 = EOP generation at EOF1 is enabled.
1 = EOP generation at EOF1 is disabled, (normal operation). (Default)
Over Current Sense: Indicates whether current sensing is on a port-by-port
basis, or ganged, or no overcurrent sensing.
00 = Ganged sensing (all ports together). (Default for self-power)
01 = Individual port-by-port.
1x = Over current sensing not supported. (may be used with Bus-Powered
configurations only!, and is the default for bus-power)
Port Power Switching: Indicates whether port power switching is on a port-
by-port basis or ganged.
0 = Ganged switching (all ports together)
1 = Individual port-by-port switching.
Dynamic Power Enable: Controls the ability for the Hub to transition to Bus-
Powered operation if the local power source is removed (can revert back to
Self-Power if local power source is restored).
0 = No Dynamic auto-switching.
1 = Dynamic Auto-switching capable.(Default)
Reserved
OverCurrent Timer: Over Current Timer delay.
00 = 0.1ms
01 = 2ms (Default)
10 = 4ms
11 = 6ms
Compound Device: Designates if Hub is part of a compound device.
0 = No. (Default)
1 = Yes, Hub is part of a compound device.
Reserved.
DATASHEET
22
DESCRIPTION
DESCRIPTION
Integrated USB 2.0 Compatible 4-Port Hub
SMSC USB2504/USB2504A
Datasheet