EVK-F10T - User guide
UBX-23008022 - R01
Device description
Page 9 of 23
C1- Public
4.1.1
14-pin connector
The EVK-F10T front side has a 14-pin connector that provides programmable input/output signals,
communication interfaces and power supply options. All these pins are ESD protected. The 14-pin
connector can be used for communicating with the receiver through the 3.3V UART interface. In
addition, the 14-
pin connector provides flexibility for evaluating other advanced
scenarios.
Pin no.
Pin name
I/O
Level
Description
14
5V_IN
I
4.75 - 5.25 V
Power input – can be used instead of USB.
13
GND
O
3.3 V
Ground
12
GNSS I1
O
3.3 V
Supply current measurement (total current). Current
measured from voltage over a 1
Ω
1% resistor between pins
12 (GNSS I1) and 11 (GNSS I2). Pin 12 (GNSS I1) is at higher
potential.
11
GNSS I2
O
3.3 V
Supply current measurement (total current). Current
measured from voltage over a 1
Ω
1% resistor between pins
12 (GNSS I1) and 11 (GNSS I2). Pin 12 (GNSS I1) is at higher
potential.
10
Reserved
-
-
Not connected
9
Reserved
-
-
Not connected
8
TIMEPULSE
O
3.3 V
Time pulse signal
7
EXTINT
I
3.3 V
External interrupt signal. Can be used for time mark feature,
time aiding, and wakeup from power save modes.
6
Reserved
-
-
Not connected
5
Reserved
-
-
Not connected
4
Reserved
-
-
Not connected
3
TXD
O
3.3 V
UART1 TXD CMOS 3.6 V max
2
RXD
I
3.3 V
UART1 RXD CMOS 3.6 V max
1
GND
I
-
Ground
Table 4 EVK-F10T 14-pin connector pin description
Figure 3 EVK-F10T 14 Pin connector pin numbering