lan9303m Standard Microsystems Corp., lan9303m Datasheet - Page 41
lan9303m
Manufacturer Part Number
lan9303m
Description
Small Form Factor Three Port 10/100 Managed Ethernet Switch With Dual Mii/rmii/turbo Mii
Manufacturer
Standard Microsystems Corp.
Datasheet
1.LAN9303M.pdf
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Small Form Factor Three Port 10/100 Managed Ethernet Switch with Dual MII/RMII/Turbo MII
Datasheet
SMSC LAN9303M/LAN9303Mi
PINS
NUM
1
EEPROM Size
LED 2 Polarity
Configuration
GPIO 2
NAME
LED 2
Strap
and
Table 3.6 GPIO/LED/Configuration Straps (continued)
E2PSIZE_LED2P
SYMBOL
GPIO2
LED2
DATASHEET
BUFFER
IS/O12/
OD12/
TYPE
OD12
OS12
O12/
(PU)
(PU)
IS
41
This pin is configured to operate as an LED when
the LED 2 Enable bit in 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 up the
E2PSIZE_LED2P
This pin is configured to operate as a GPIO when
the LED 2 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 EEPROM size, as well as
the polarity of the LED 2 pin when it is an open-
drain or open-source output. See
The low bit of the EEPROM size range is set to the
strap value. When 0, EEPROM sizes 16 x 8
through 2048 x 8 are supported. When 1,
EEPROM sizes 4096 x 8 through 65536 x 8 are
supported.
For LED 2, 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
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
LED Configuration
LED Configuration
LED Configuration
(GPIO_DATA_DIR).
LED Function 1-0
General Purpose
Revision 1.3 (08-27-09)
Note
3.8.
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