LAN9514-JZX Standard Microsystems (SMSC), LAN9514-JZX Datasheet - Page 30

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LAN9514-JZX

Manufacturer Part Number
LAN9514-JZX
Description
Manufacturer
Standard Microsystems (SMSC)
Datasheet

Specifications of LAN9514-JZX

Operating Supply Voltage (typ)
3.3V
Operating Supply Voltage (min)
3V
Operating Supply Voltage (max)
3.6V
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Pin Count
64
Lead Free Status / RoHS Status
Compliant

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Revision 1.0 (11-24-09)
BITS
BITS
7:6
5:4
2:0
2:1
0
3
Over Current Sense (CURRENT_SNS)
Selects current sensing on a port-by-port basis, all ports ganged, or none
(only for bus-powered hubs) The ability to support current sensing on a port
or ganged basis is hardware implementation dependent.
00 = Ganged sensing (all ports together)
01 = Individual port-by-port
1x = Over current sensing not supported (must only be used with Bus-
Powered configurations!)
Port Power Switching (PORT_PWR)
Enables power switching on all ports simultaneously (ganged), or port power
is individually switched on and off on a port by port basis (individual). The
ability to support power enabling on a port or ganged basis is hardware
implementation dependent.
0 = Ganged switching (all ports together)
1 = Individual port by port switching
RESERVED
Over Current Timer (OC_TIMER)
Over Current Timer delay
00 = 50ns
01 = 100ns (This is the recommended value)
10 = 200ns
11 = 400ns
Compound Device (COMPOUND)
Allows the OEM to indicate that the Hub is part of a compound (see the USB
Specification for definition) device. The applicable port(s) must also be
defined as having a “Non-Removable Device”.
0 = No
1 = Yes, Hub is part of a compound device
RESERVED
Table 3.4 Config Data Byte 1 Register (CFG1) Format (continued)
Table 3.5 Config Data Byte 2 Register (CFG2) Format
DESCRIPTION
DESCRIPTION
DATASHEET
30
USB 2.0 Hub and 10/100 Ethernet Controller
SMSC LAN9514/LAN9514i
DEFAULT
DEFAULT
000b
01b
00b
01b
1b
1b
Datasheet

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