LAN9303MI-AKZE Standard Microsystems (SMSC), LAN9303MI-AKZE Datasheet - Page 43

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

Specifications of LAN9303MI-AKZE

• Lead Free Status / Rohs Status: Compliant

Small Form Factor Three Port 10/100 Managed Ethernet Switch with Dual MII/RMII/Turbo MII
Datasheet
SMSC LAN9303M/LAN9303Mi
PINS
NUM
1
LED 0 Polarity
MDIX Enable
Configuration
Port 1 Auto-
GPIO 0
Note 3.8
NAME
LED 0
Strap
and
Configuration strap pins are identified by an underlined symbol name. Configuration strap
values are latched on power-on reset or nRST de-assertion. In addition to the configuration
strap pins that control GPIO/LED and Auto-MDIX operation listed in
configuration strap pins are associated with each port and control their operation. They are
described in
values from the EEPROM Loader. Please refer to
page 51
Table 3.6 GPIO/LED/Configuration Straps (continued)
AMDIX1_LED0P
SYMBOL
for further information.
GPIO0
LED0
Table 3.4
DATASHEET
and
BUFFER
IS/O12/
OD12/
TYPE
OD12
OS12
O12/
(PU)
(PU)
IS
Table
43
3.5. Some configuration straps can be overridden by
This pin is configured to operate as an LED when
the LED 0 Enable bit in the
Register (LED_CFG)
depends on the setting of the field in the
Configuration Register (LED_CFG)
configured to be either an push-pull or open-
drain/open-source output. When selected as an
open-drain/open-source output, the polarity of this
pin depends up the
sampled at reset.
This pin is configured to operate as a GPIO when
the LED 0 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 for the Auto-MDIX
soft-strap for LAN Port 1, as well as the polarity of
the LED 0 pin when it is an open-drain or open-
source output. See
The strap value determines whether or not LAN
Port 1 Auto-MDIX is enabled as follows:
0 = Disabled
1 = Enabled
For LED 0, If the strap value is 0:
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 LED is set as active low, since it is assumed
that a LED to VDD is used as the pull-up.
General Purpose I/O Configuration
Section 4.2.4, "Configuration Straps," on
DESCRIPTION
Note
AMDIX1_LED0P
is set. The buffer type
is clear. The pin is fully
and the
3.8.
LED Configuration
LED Configuration
(GPIO_DATA_DIR).
General Purpose
Revision 1.4 (07-07-10)
and is
strap value
Table
LED
3.6,