LAN9118MT Standard Microsystems (SMSC), LAN9118MT Datasheet - Page 21

• Manufacturer Part Number: LAN9118MT
• Manufacturer: Standard Microsystems (SMSC)

High-Performance Single-Chip 10/100 Non-PCI Ethernet Controller
Datasheet
SMSC LAN9118
PIN
NO.
95
70
6
5
NAME
Wakeup Indicator
Crystal 1
Crystal 2
Reset
SYMBOL
Table 2.5 System and Power Signals
nRESET
XTAL1
XTAL2
PME
DATASHEET
BUFFER
TYPE
O8/OD8
(PU)
Oclk
21
lclk
IS
NUM
PINS
1
1
1
1
DESCRIPTION
External 25MHz Crystal Input.
Can also be connected to single-
ended TTL oscillator. If this method is
implemented, XTAL2 should be left
unconnected.
External 25MHz Crystal output.
Active-low reset input. Resets all
logic and registers within the
LAN9118
with a weak internal pull-up
resistor. If nRESET is left
unconnected, the
on its internal power-on reset
circuitry
Note:
When programmed to do so, is
asserted when the LAN9118 detects a
wake event and is requesting the
system to wake up from the
associated sleep state. The polarity
and buffer type of this signal is
programmable.
Note:
The LAN9118 must always
be read at least once after
power-up, reset, or upon
return from a power-saving
state or write operations will
not function. See
4.11, "Detailed Reset
Description," on page 50
additional information
Detection of a Power
Management Event, and
assertion of the PME signal
will not wakeup the
LAN9118. The LAN9118 will
only wake up when it detects
a host write cycle (assertion
of nCS and nWR). Although
any write to the LAN9118,
regardless of the data
written, will wake-up the
device when it is in a power-
saving mode, it is required
that the BYTE_TEST register
be used for this purpose.
This signal is pulled high
Revision 1.0 (03-17-05)
LAN9118
Section
will rely
for