LAN9218I-MT SMSC, LAN9218I-MT Datasheet - Page 17

• Manufacturer Part Number: LAN9218I-MT
• Description: Ethernet ICs Indust Hi Perfrm Single-Chip
• Manufacturer: SMSC
• Type: Single Chip MAC and PHY Controllerr

Specifications of LAN9218I-MT

• Ethernet Connection Type: 10 Base-T, 100 Base-TX
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Product: Ethernet Controllers
• Number Of Transceivers: 1
• Standard Supported: 802.3, 802.3u
• Data Rate: 10 Mbps, 100 Mbps
• Supply Voltage (max): 3.3 V
• Supply Voltage (min): 0 V
• Supply Current (max): 69 mA
• 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 with HP Auto-MDIX and Industrial Temperature Support
Datasheet
SMSC LAN9218i
Auto-MDIX Enable
Crystal 1, Clock In
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 2.5 System and Power Signals
BUFFER
O8/OD8
OCLK
TYPE
lCLK
(PU)
(PD)
(PU)
IS
I
I
DATASHEET
17
PINS
NUM
1
1
1
1
1
1
4
1
External 25MHz Crystal Input. This pin can also
No Connect. These pins must be left open.
Reserved for internal test purposes only. This
be connected to single-ended TTL oscillator
(CLKIN). 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 LAN9218i. This signal is
pulled high with a weak internal pull-up resistor.
If nRESET is left unconnected, the LAN9218i
will rely on its internal power-on reset circuitry.
Note:
When programmed to do so, is asserted when
the LAN9218i 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:
Enables Auto-MDIX. Pull high 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
pin should be pulled low through an external
pull-down resistor.
The LAN9218i 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
Description," on page 40
information
Detection of a Power Management
Event, and assertion of the PME
signal will not wakeup the LAN9218i.
The LAN9218iwill only wake up when
it detects a host write cycle (assertion
of nCS and nWR). Although any write
to the LAN9218i, 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 3.10, "Detailed Reset
DESCRIPTION
Table 2.2, "Default
Revision 2.7 (03-15-10)
for additional