Quick Reference Guide

Pin Assignment
Pin number
Description
Pin number
Description
1
I2C3_SCL(1.8V)
2
GND
3
I2C3_SDA(1.8V)
4
SPI1_CS#(1.8V)
5
NC(Keep float)
6
SPI1_MOSI(1.8V)
7
NC(Keep float)
8
SPI1_MISO(1.8V)
9
SPI1_CLK(1.8V)
10
GND
11
NC(Keep float)
12
+3.3VS_EXT
13
NC(Keep float)
14
15
FF_RXD
16
+5VS_EXT
17
FF_TXD
18
19
FF_CTS
20
+MAIN_BATT_EXT
21
FF_RTS
22
23
GND
24
25
GND
26
27
GND
28
GND
29
GND
30
+1.8VS
31
NC(Keep float)
32
NC(Keep float)
33
NC(Keep float)
34
PLUG_IN#
35
NC(Keep float)
36
GPIO_1
37
NC(Keep float)
38
GPIO_2
39
NC(Keep float)
40
GND