Datasheet

TABLE 2-2: LED PINS
NUM PINS NAME SYMBOL
BUFFER
TYPE DESCRIPTION
1
LED 1 LED1 O12 Link activity LED Indication. This pin is driven
a
ctive when a valid link is detected and blinks
when activity is detected.
Note: Refer to Section 3.8.1, "LEDs," on
page 32 for additional LED information.
Regulator Off
Co
nfiguration
Strap
REGOFF IS
(PD)
This configuration strap is used to disable the
internal 1.2V regulator. When the regulator is dis-
abled, external 1.2V must be supplied to VDDCR.
• When
REGOFF is pulled high to VDD2A with
an external resistor, the internal regulator is
disabled.
• When
REGOFF is floating or pulled low, the
internal regulator is enabled (default).
See Note 2-4 for more information on configura-
tion straps.
Note: Re
fer to Section 3.7.4, "REGOFF:
Internal +1.2V Regulator Configuration,"
on page 32 for additional details.
1
LED 2 LED2 O12 Link Speed LED Indication. This pin is driven
a
ctive when the operating speed is 100Mbps. It is
inactive when the operating speed is 10Mbps or
during line isolation.
Note: Refer to Section 3.8.1, "LEDs," on
page 32 for additional LED information.
nINT/TXER/
TXD4
Function
Select
Configuration
Strap
nINTSEL IS
(PU)
This configuration strap selects the mode of the
nINT/TXER/TXD4 pin.
• When
nINTSEL is floated or pulled to
VDD2A, nINT is selected for operation on the
nINT/TXER/TXD4 pin (default).
• When
nINTSEL is pulled low to VSS, TXER/
TXD4 is selected for operation on the nINT/
TXER/TXD4 pin.
See Note 2-4 for more information on configura-
tion straps.
Note: Re
fer to See Section 3.8.1.2, "nINTSEL
and LED2 Polarity Selection," on page 33
for additional information.
 2016 Microchip Technology Inc. DS00002164B-page 11
LAN8710A/LAN8710AI
Note 2-4 Configuration strap values are latched on power-on reset and system reset. Configuration straps are
identified by an underlined symbol name. Signals that function as configuration straps must be
augmented with an external resistor when connected to a load. Refer to Section 3.7, "Configuration
Straps," on page 29 for additional information.