LAN89218AQ SMSC, LAN89218AQ Datasheet - Page 19

• Manufacturer Part Number: LAN89218AQ
• Description: Ethernet ICs High Perform Chip 10/100 NonPCI Cntrl
• Manufacturer: SMSC

Specifications of LAN89218AQ

• Ethernet Connection Type: 10BASE-T, 100BASE-TX
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Product: Ethernet Controllers
• Standard Supported: IEEE802.3, IEEE802.3u
• Supply Voltage (max): 3.6 V
• Supply Voltage (min): 3 V
• Maximum Operating Temperature: + 85 C
• Package / Case: TQFP-100
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

High Performance Single-Chip 10/100 Ethernet Controller for Automotive Applications
Datasheet
SMSC LAN89218
Crystal 1, Clock In
Auto-MDIX Enable
Wakeup Indicator
10/100 Selector
No Connect
(Reserved)
Pull-Down
Crystal 2
NAME
Reset
XTAL1/CLKIN
SPEED_SEL
AMDIX_EN
SYMBOL
nRESET
XTAL2
PME
NC
PD
Table 2.4 System and Power Signals
BUFFER
O8/OD8
OCLK
TYPE
ICLK
(PU)
(PD)
(PU)
(PD)
IS
I
I
I
DATASHEET
19
PINS
NUM
1
1
1
1
1
1
3
1
External 25 MHz Crystal output.
No Connect. These pins must be left open.
External 25 MHz Crystal Input. This pin can
also be connected to single-ended TTL
oscillator (CLKIN). If this method is
implemented, XTAL2 should be left
unconnected.
Active-low reset input. Resets all logic and
registers within the LAN89218. This signal is
pulled high with a weak internal pull-up resistor.
Note: The LAN89218 must always be read at
When programmed to do so, is asserted when
the LAN89218 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: Detection of a Power Management
Enables Auto-MDIX. Pull high to enable Auto-
MDIX, pull low or leave unconnected to disable
Auto-MDIX.
This signal functions as a configuration input on
power-up and is used to select the default
Ethernet settings. Upon deassertion of reset,
the value of the input is latched. This signal
functions as shown in
Ethernet
Reserved for internal purposes only. This pin
should be pulled low through an external pull-
down resistor or left unconnected.
least once after power-up, reset, or
upon return from a power-saving state
or write operations will not function.
See
Description," on page 52
information
Event, and assertion of the PME
signal will not wakeup the LAN89218.
The LAN89218 will only wake up when
it detects a host write cycle (assertion
of nCS and nWR). Although any write
to the LAN89218, 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.
Settings", below.
Section 3.11, "Detailed Reset
DESCRIPTION
Table 2.5, "Default
Revision 1.3 (02-23-10)
for additional