Data Sheet

TigoAir 2 SOM
All information presented in this document is confidential and for internal use only.
Copyright © 2019, CoreTigo Ltd.
Page 11 of 26
41
GND_F
GND power supply ground
42
GND_F
GND power supply ground
43
GND_F
GND power supply ground
44
GND_F
GND power supply ground
45
RF2p4GHz
RF Port (PAD) - RF transmission to host board (special assembly variant)
2.5 Footprint to SoC Connectivity
The following table describes all the signals on the footprint interface.
If unused, debug pads should be left unconnected (alternatively they can be connected to a test-
point\header for debug purposes).
Table 2 – Footprint to SoC Connectivity
SoC Pin
Number
SoC Pin Name
Type
Signal Name
TigoAir 2
SOM Pad
Number
Main Function
0,14,15,16,37
VSS
Power
GND
1
GND
7
PF6
I/O
GPIO 1
2
GPIO
0,14,15,16,37
VSS
Power
GND
3
GND
25
PA0
Output
USART0 TX
4
USART TX
26
PA1
Input
USART0 RX
5
USART RX
24
PD15
Output
LETIMER0
6
Low Power Timer
36
PB15
Output
USART1 CS
7
USART CS
30
PA5
I/O
I2C0 SCL
8
I2C SCL
2
PF1
I/O
SWDIO
9
SWD I/O
1
PF0
Clock
SWCLK
10
SWD Clock
3
PF2
I/O
SWO
11
SWO
NC
NC
NC
NC
12
Not connected
12
RESETn
Input
RESET
13
SoC Reset
4
PF3
Clock
USART1 TX
14
USART TX
29
PA4
Output
USART1 CLK
15
USART CLK
33
PB13
Input
USART1 RX
16
USART RX
27
PA2
Output
USART0 CTS
17
USART CTS
43
PC6
Input
ADC0 pos
18
ADC
32
PB12
Output
Timer1
19
Timer
5
PF4
Output
USART1 CTS
20
USART CTS
44
PC7
Input
ADC0 neg
21
ADC
9,18,34,39,40-42
VCC
Power
Vcc IN
22
VCC
9,18,34,39,40-42
VCC
Power
Vcc IN
23
VCC
8
PF7
Input
PB_PAIR
24
Pairing button
0,14,15,16,37
VSS
Power
GND
25
GND
31
PB11
I/O
I2C0 SDA
26
I2C Data
22
PD13
I/O
LESENCE CH5
27
LESENCE
23
PD14
Output
LED0
28
LED
28
PA3
Input
USART0 RTS
29
USART RTS
6
PF5
Power
USART1 RTS
30
USART RTS
NC
NC
NC
NC
31
Not connected
NC
NC
NC
NC
32
Not connected
46
PC9
Output
DAC 1
33
DAC
45
PC8
Output
DAC 2
34
DAC