Technical Information; Pin Assignment - Globalsat ET-318 User Manual

2. Technical Information

Pin Assignment

Pin Signal Name
1
2
3
4
5
6
7
8
9
10 BOOTSEL
11
12
13
14
15 TIMEMARK
16
17
ET-318
I/O
GND G
RF_IN RF
GND G
NRESET I
VCC_IN PWR
VBAT PWR
RXB I
TXB O
GND G
TXA O
RXA I
GPIO1 I
GPIO14 I
O
GPIO13 I
GPIO15 I
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Description
Analog Ground
GPS Signal input
Analog Ground
Reset (Active low)
DC Supply Voltage input
Backup voltage supply
Serial port B
Serial port B
Analog Ground
Boot mode
Serial port A
Serial port A
General –purpose I/O
General –purpose I/O
One pulse per second
General –purpose I/O
General –purpose I/O
Specifications are subject to be changed without notice.
Version 1.3.1
ET-318-01 Bottom View