LAN9512I-JZX Standard Microsystems (SMSC), LAN9512I-JZX Datasheet - Page 25

• Manufacturer Part Number: LAN9512I-JZX
• Manufacturer: Standard Microsystems (SMSC)

Specifications of LAN9512I-JZX

• Operating Supply Voltage (typ): 3.3V
• Operating Supply Voltage (min): 3V
• Operating Supply Voltage (max): 3.6V
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 64
• Lead Free Status / RoHS Status: Supplier Unconfirmed

USB 2.0 Hub and 10/100 Ethernet Controller
Datasheet
SMSC LAN9512/LAN9512i
EEPROM
OFFSET
2Eh
2Fh
30h
31h
32h
33h
34h
35h
Hub Controller Max Current (Self) Register (HCMCS)
Value in 2mA increments that the Hub consumes from an upstream port (VBUS) when
operating as a self-powered hub. This value includes the hub silicon along with the
combined power consumption (from VBUS) of all associated circuitry on the board.
This value does NOT include the power consumption of a permanently attached
peripheral if the hub is configured as a compound device.
Note:
Hub Controller Max Current (Bus) Register (HCMCB)
Value in 2mA increments that the Hub consumes from an upstream port (VBUS) when
operating as a bus-powered hub. This value includes the hub silicon along with the
combined power consumption (from VBUS) of all associated circuitry on the board.
This value does NOT include the power consumption of a permanently attached
peripheral if the hub is configured as a compound device.
Power-on Time Register (PWRT)
The length of time that it takes (in 2mS intervals) from the time the host initiated
power-on sequence begins on a port until power is good on that port. System software
uses this value to determine how long to wait before accessing a powered-on port.
Boost_Up Register (BOOSTUP)
Refer to
RESERVED
Boost_3:2 Register (BOOST32)
Refer to
RESERVED
Port Swap Register (PRTSP)
Swaps the Upstream and Downstream USB DP and DM pins for ease of board routing
to devices and connectors.
0 = USB D+ functionality is associated with the DP pin and D- functionality is
associated with the DM pin.
1 = USB D+ functionality is associated with the DM pin and D- functionality is
associated with the DP pin.
Bit 7 = RESERVED
Bit 6 = RESERVED
Bit 5 = RESERVED
Bit 4 = RESERVED
Bit 3 = 1; Port 3 DP/DM is swapped
Bit 2 = 1; Port 2 DP/DM is swapped
Bit 1 = RESERVED
Bit 0 = 1; Upstream Port DP/DM is swapped
Table 3.7, “Boost_Up Register (BOOSTUP) Format,” on page 30
Table 3.8, “Boost_3:2 Register (BOOST32) Format,” on page 30
The USB2.0 Specification does not permit this value to exceed 100mA.
Table 3.3 Hub Configuration (continued)
DATASHEET
DESCRIPTION
25
for details.
for details.
Revision 1.0 (11-24-09)
DEFAULT
01h
00h
32h
00h
00h
00h
00h
00h