USB2507 SMSC Corporation, USB2507 Datasheet - Page 21

• Manufacturer Part Number: USB2507
• Description: Integrated USB 2.0 Compatible 7-Port Hub
• Manufacturer: SMSC Corporation

Integrated USB 2.0 Compatible 7-Port Hub
Datasheet
SMSC USB2507
5.2.3.5
NUMBER
NUMBER
BIT
BIT
2:1
5:4
2:0
5
4
3
0
7
6
3
EEPROM Offset 7(h) - CONFIG_BYTE_2
CURRENT_SNS
EOP_DISABLE
MTT_ENABLE
HS_DISABLE
COMPOUND
PORT_PWR
OC_TIMER
BIT NAME
BIT NAME
DYNAMIC
Reserved
Reserved
High Speed Disable: Disables the capability to attach as either a High/Full-
speed device, and forces attachment as Full-speed only i.e. (no High-Speed
support).
0 = High-/Full-Speed. (Default)
1 = Full-Speed-Only (High-Speed disabled!)
Multi-TT enable: Enables one transaction translator per port operation.
0 = single TT for all ports.
1 = one TT per port (multiple TT’s supported)
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.
00 = Ganged sensing (all ports together). (Default for self-power)
01 = Individual port-by-port.
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
21
DESCRIPTION
DESCRIPTION
Revision 2.1 (12-06-06)