LTE Module Series
EG25-G Hardware Design
EG25-G_Hardware_Design 27 / 100
open.
BT_EN*
139
DO
BT function control
via FC20 module
V
OL
max=0.45V
V
OH
min=1.35V
1.8V power domain.
If unused, keep it
open.
SGMII Interface
Pin Name
Pin No.
I/O
Description
DC Characteristics
Comment
EPHY_RST_N 119
DO Ethernet PHY reset
For 1.8V:
V
OL
max=0.45V
V
OH
min=1.4V
For 2.85V:
V
OL
max=0.35V
V
OH
min=2.14V
1.8V/2.85V power
domain.
If unused, keep it
open.
EPHY_INT_N 120
DI
Ethernet PHY
interrupt
V
IL
min=-0.3V
V
IL
max=0.6V
V
IH
min=1.2V
V
IH
max=2.0V
1.8V power domain.
If unused, keep it
open.
SGMII_MDATA 121
IO
SGMII MDIO
(Management Data
Input/Output) data
For 1.8V:
V
IL
max=0.58V
V
IH
min=1.27V
V
OL
max=0.45V
V
OH
min=1.4V
For 2.85V:
V
IL
max=0.71V
V
IH
min=1.78V
V
OL
max=0.35V
V
OH
min=2.14V
1.8V/2.85V power
domain.
Require external
pull-up to
USIM2_VDD, and the
resistor should be
1.5K.
If unused, keep it
open.
SGMII_MCLK 122
DO
SGMII MDIO
(Management Data
Input/Output) clock
For 1.8V:
V
OL
max=0.45V
V
OH
min=1.4V
For 2.85V:
V
OL
max=0.35V
V
OH
min=2.14V
1.8V/2.85V power
domain.
If unused, keep it
open.
SGMII_TX_M 123
AO
SGMII transmission
-
minus
If unused, keep it
open.
SGMII_TX_P
124
AO
SGMII transmission
-
plus
If unused, keep it
open.
SGMII_RX_P
125
AI
SGMII receiving
-
plus
If unused, keep it
open.
