LAN9303MI-AKZE Standard Microsystems (SMSC), LAN9303MI-AKZE Datasheet - Page 38

• Manufacturer Part Number: LAN9303MI-AKZE
• Manufacturer: Standard Microsystems (SMSC)

Specifications of LAN9303MI-AKZE

• Lead Free Status / Rohs Status: Compliant

Revision 1.4 (07-07-10)
PINS
NUM
1
PHY Address
Configuration
and LED 5
GPIO 5
Polarity
NAME
LED 5
Strap
PHYADDR_LED5P
SYMBOL
GPIO5
Table 3.6 GPIO/LED/Configuration Straps
LED5
Small Form Factor Three Port 10/100 Managed Ethernet Switch with Dual MII/RMII/Turbo MII
DATASHEET
BUFFER
IS/O12/
OD12/
TYPE
OD12
OS12
O12/
(PU)
(PU)
IS
38
This pin is configured to operate as an LED when
the LED 5 Enable bit of the
Register (LED_CFG)
depends on the setting of the
(LED_FUN[1:0])
Register (LED_CFG)
an push-pull or open-drain/open-source output.
When selected as an open-drain/open-source
output, the polarity of this pin depends upon the
PHYADDR_LED5P
This pin is configured to operate as a GPIO when
the LED 5 Enable bit of the
Register (LED_CFG)
programmable as either a push-pull output, an
open-drain output, or a Schmitt-triggered input by
writing the
Register (GPIO_CFG)
I/O Data & Direction Register
This strap configures the default value of the MII
management address for the PHYs and Virtual
PHY, as well as the polarity of the LED 5 pin when
it is an open-drain or open-source output. See
Note
If the strap value is 0:
The PHY address values are as follows:
Virtual PHY = 0
PHY Port 1 = 1
PHY Port 2 = 2
The LED is set as active high, since it is assumed
that a LED to ground is used as the pull-down.
If the strap value is 1:
The PHY address values are as follows:
Virtual PHY = 1
PHY Port 1 = 2
PHY Port 2 = 3
The LED is set as active low, since it is assumed
that a LED to VDD is used as the pull-up.
3.8.
General Purpose I/O Configuration
field in the
DESCRIPTION
strap value sampled at reset.
and is configured to be either
is set. The buffer type
is clear. The pin is fully
and the
SMSC LAN9303M/LAN9303Mi
LED Configuration
LED Configuration
LED Configuration
(GPIO_DATA_DIR).
LED Function 1-0
General Purpose
Datasheet