lan9313 Standard Microsystems Corp., lan9313 Datasheet - Page 145
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lan9313
Manufacturer Part Number
lan9313
Description
Lan9313/lan9313i Three Port 10/100 Managed Ethernet Switch With Mii
Manufacturer
Standard Microsystems Corp.
Datasheet
1.LAN9313.pdf
(398 pages)
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Three Port 10/100 Managed Ethernet Switch with MII
Datasheet
SMSC LAN9313/LAN9313i
nP1LED1
nP1LED0
(GPIO1)
(GPIO0)
The various LED indication functions shown in
TX Port 0 - The signal is pulsed low for 80mS to indicate activity from the switch fabric to the
external MII pins. This signal is then driven high for a minimum of 80mS, after which the process
will repeat if TX activity is again detected.
RX Port 0 - The signal is pulsed low for 80mS to indicate activity from the external MII pins to the
switch fabric. This signal is then driven high for a minimum of 80mS, after which the process will
repeat if RX activity is again detected.
Link / Activity - A steady low output indicates that the port has a valid link, while a steady high
indicates no link on the port. The signal is pulsed high for 80mS to indicate transmit or receive
activity on the port. The signal is then driven low for a minimum of 80mS, after which the process
will repeat if RX or TX activity is again detected.
Full-duplex / Collision - A steady low output indicates the port is in full-duplex mode, while a
steady high indicates no link on the port. In half-duplex mode, the signal is pulsed low for 80mS
to indicate a network collision. The signal is then driven high for a minimum of 80mS, after which
the process will repeat if another collision is detected.
Speed - A steady low output indicates the selected speed is 100Mbps. A steady high output
indicates the selected speed is 10Mbps. The signal will be held high if the port does not have a
valid link.
100Link / Activity - A steady low output indicates the port has a valid link and the speed is
100Mbps. The signal is pulsed high for 80mS to indicate TX or RX activity on the port. The signal
is then driven low for a minimum of 80mS, after which the process will repeat if RX or TX activity
is again detected. The signal will be held high if the port does not have a valid link.
10Link / Activity - A steady low output indicates the port has a valid link and the speed is 10Mbps.
The signal is pulsed high for 80mS to indicate transmit or receive activity on the port. The signal
is then driven low for a minimum of 80mS, after which the process will repeat if RX or TX activity
is again detected. This signal will be held high if the port does not have a valid link.
Activity - The signal is pulsed low for 80mS to indicate transmit or receive activity. The signal is
then driven high for a minimum of 80mS, after which the process will repeat if RX or TX activity is
again detected. The signal will be held high if the port does not have a valid link.
Link - A steady low indicates the port has a valid link.
TXEN Port 0 - Non-stretched TXEN signal from the switch fabric to the external MII pins.
RXDV Port 0 - Non-stretched RXDV signal from the external MII pins to the switch fabric.
TXEN - Non-stretched TXEN signal from the switch fabric to the PHY.
RXDV - Non-stretched RXDV signal from the PHY to the switch fabric.
Full-duplex / Collision
Table 12.1 LED Operation as a Function of LED_CFG[9:8] (continued)
Speed
Port 1
Port 1
Full-duplex / Collision
10Link / Activity
DATASHEET
LED_CFG[9:8] (LED_FUN[1:0])
Port 1
Port 1
145
Table 12.1
Full-duplex / Collision
are described below:
Speed
Port 1
Port 1
Revision 1.2 (04-08-08)
Port 1
RXDV
Port 1
TXEN
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