LAN9313I SMSC [SMSC Corporation], LAN9313I Datasheet - Page 30
LAN9313I
Manufacturer Part Number
LAN9313I
Description
Three Port 10/100 Managed Ethernet Switch with MII
Manufacturer
SMSC [SMSC Corporation]
Datasheet
1.LAN9313I.pdf
(398 pages)
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Revision 1.2 (04-08-08)
19,20,22,23
122,125
PIN
120
121
PIN
118
4
Analog Power
+3.3V Master
+3.3V Port 2
+1.8V Power
+1.8V Power
MII Transmit
Bias Power
Transmitter
Transmitter
Transmitter
Enable
NAME
Supply
Supply
Supply
Supply
NAME
Port 2
Port 1
Data
MII
Table 3.3 LAN Port 1 & 2 Power and Common Pins (continued)
VDD33BIAS
VDD18TX2
VDD18TX1
SYMBOL
VDD33A2
SYMBOL
TXD[3:0]
Table 3.4 LAN Port 0(External MII) Pins
TXEN
DATASHEET
BUFFER
Note 3.3
Note 3.3
BUFFER
TYPE
IS/O8
IS/O8
TYPE
(PD)
(PD)
P
P
P
P
30
MII Transmit Data: The functionality of these
signals is dependant on the mode of the
LAN9313/LAN9313i:
MII Transmit Enable: Indicates valid data on
TXD[3:0].
+3.3V Port 2 Analog Power Supply
Refer to the LAN9313/LAN9313i application note
for additional connection information.
+3.3V Master Bias Power Supply
Refer to the LAN9313/LAN9313i application note
for additional connection information.
Port 2 Transmitter +1.8V Power Supply: This pin
is supplied from the internal PHY voltage regulator.
This pin must be tied to the VDD18TX1 pin for
proper operation.
Refer to the LAN9313/LAN9313i application note
for additional connection information.
+1.8V Port 1 Transmitter Power Supply: This pin
must be connected directly to the VDD18TX2 pin
for proper operation.
Refer to the LAN9313/LAN9313i application note
for additional connection information.
In MAC mode, this is the data from the
LAN9313/LAN9313i switch to an external PHY.
See
In PHY mode, this is the data from an external
MAC to the LAN9313/LAN9313i switch.
In MAC mode, this signal is output to an external
PHY. See
In PHY mode, this signal is input from an external
MAC.
Note
3.3.
Note
Three Port 10/100 Managed Ethernet Switch with MII
3.3.
DESCRIPTION
DESCRIPTION
SMSC LAN9313/LAN9313i
Datasheet
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