LAN9730 Datasheet, PDF (20/61 Pages) SMSC Corporation – High-Speed Inter-Chip (HSIC) USB 2.0

High-Speed Inter-Chip (HSIC) USB 2.0 to 10/100 Ethernet Controller
Datasheet
Table 2.5 USB Pins
NUM PINS
NAME
SYMBOL
BUFFER
TYPE
DESCRIPTION
1
HSIC Data
HSIC_DATA
HSIC Bi-directional Double Data Rate (DDR) data
signal that is synchronous to the HSIC_STROBE
signal as defined in the High-Speed Inter-Chip
USB Electrical Specification, Version 1.0.
1
HSIC Strobe HSIC_STROBE
HSIC Bi-directional data strobe signal as defined in the
High-Speed Inter-Chip USB Electrical
Specification, Version 1.0.
1
HSIC Slew
SLEW_TUNE
IS
Applies a slew rate boost to the HSIC_DATA and
Tune
(PD)
HSIC_STROBE pins when driven high.
1
External USB
USBRBIAS
Bias Resistor
AI
Used for setting HS transmit current level and on-
chip termination impedance. Connect to an
external 12.0 kΩ 1.0% resistor to ground.
NUM PINS
NAME
1
Ethernet TX
Data Out
Negative
1
Ethernet TX
Data Out
Positive
1
Ethernet RX
Data In
Negative
1
Ethernet RX
Data In
Positive
1
PHY Interrupt
(Internal PHY
Mode)
PHY Interrupt
(External
PHY Mode)
1
External PHY
Bias Resistor
Table 2.6 Ethernet PHY Pins
SYMBOL
BUFFER
TYPE
DESCRIPTION
TXN
AIO
The transmit data outputs may be swapped
internally with receive data inputs when Auto-
MDIX is enabled.
TXP
AIO
The transmit data outputs may be swapped
internally with receive data inputs when Auto-
MDIX is enabled.
RXN
AIO
The receive data inputs may be swapped
internally with transmit data outputs when Auto-
MDIX is enabled.
RXP
AIO
The receive data inputs may be swapped
internally with transmit data outputs when Auto-
MDIX is enabled.
nPHY_INT
nPHY_INT
O8
IS
(PU)
In Internal PHY Mode, this pin can be configured
to output the internal PHY interrupt signal.
Note: The internal PHY interrupt signal is
active-high.
In External PHY Mode, the active-low signal on
this pin is input from the external PHY and
indicates a PHY interrupt has occurred.
EXRES
AI
Used for the internal bias circuits. Connect to an
external 12.0 kΩ 1.0% resistor to ground.
Revision 1.1 (05-13-13)
20
DATASHEET
SMSC LAN9730/LAN9730i