SMSC LAN8710i User Manual
MII/RMII 10/100 Ethernet Transceiver with HP Auto-MDIX and flexPWR
®
Technology in a Small Footprint
Datasheet
SMSC LAN8710/LAN8710i
17
Revision 1.0 (04-15-09)
DATASHEET
3.3
Management Signals
3.4
General Signals
3.5
10/100 Line Interface Signals
LED2/
nINTSEL
2
IOPU
LED2 – Link Speed LED Indication.
See
See
for a description of LED modes.
nINTSEL: On power-up or external reset, the mode of the nINT/TXER/TXD4
pin is selected.
pin is selected.
When LED2/nINTSEL is floated or pulled to VDDIO, nINT is selected for
operation on pin nINT/TXER/TXD4 (default).
operation on pin nINT/TXER/TXD4 (default).
When LED2/nINTSEL is pulled low to VSS through a resistor, TXER/TXD4
is selected for operation on pin nINT/TXER/TXD4.
is selected for operation on pin nINT/TXER/TXD4.
See
for additional information.
Table 3.4 Management Signals 32-QFN
SIGNAL
NAME
32-QFN
PIN #
TYPE
DESCRIPTION
MDIO
16
IOD8
Management Data Input/OUTPUT: Serial management data input/output.
MDC
17
I8
Management Clock: Serial management clock.
Table 3.5 General Signals 32-QFN
SIGNAL
NAME
32-QFN
PIN #
TYPE
DESCRIPTION
XTAL1/
CLKIN
5
ICLK
Clock Input: Crystal connection or external clock input.
XTAL2
4
OCLK
Clock Output: Crystal connection.
Float this pin when an external clock is driven to XTAL1/CLKIN.
nRST
19
IOPU
External Reset: Input of the system reset. This signal is active LOW.
Table 3.6 10/100 Line Interface Signals 32-QFN
SIGNAL
NAME
32-QFN
PIN #
TYPE
DESCRIPTION
TXP
29
AIO
Transmit/Receive Positive Channel 1.
Table 3.3 LED Signals 32-QFN (continued)
SIGNAL
NAME
32-QFN
PIN #
TYPE
DESCRIPTION