
Alternate
LOCATION
Functionality
0 - 3
4 - 7
8 - 11
12 - 15
16 - 19
20 - 23
24 - 27
28 - 31
Description
US1_RTS
0: PA5
1: PB11
2: PB12
3: PB13
4: PB14
5: PB15
6: PC6
7: PC7
8: PC8
9: PC9
10: PC10
11: PC11
12: PD9
13: PD10
14: PD11
15: PD12
16: PD13
17: PD14
18: PD15
19: PF0
20: PF1
21: PF2
22: PF3
23: PF4
24: PF5
25: PF6
26: PF7
27: PA0
28: PA1
29: PA2
30: PA3
31: PA4
USART1 Request
To Send hardware
flow control output.
US1_RX
0: PA1
1: PA2
2: PA3
3: PA4
4: PA5
5: PB11
6: PB12
7: PB13
8: PB14
9: PB15
10: PC6
11: PC7
12: PC8
13: PC9
14: PC10
15: PC11
16: PD9
17: PD10
18: PD11
19: PD12
20: PD13
21: PD14
22: PD15
23: PF0
24: PF1
25: PF2
26: PF3
27: PF4
28: PF5
29: PF6
30: PF7
31: PA0
USART1 Asynchro-
nous Receive.
USART1 Synchro-
nous mode Master
Input / Slave Out-
put (MISO).
US1_TX
0: PA0
1: PA1
2: PA2
3: PA3
4: PA4
5: PA5
6: PB11
7: PB12
8: PB13
9: PB14
10: PB15
11: PC6
12: PC7
13: PC8
14: PC9
15: PC10
16: PC11
17: PD9
18: PD10
19: PD11
20: PD12
21: PD13
22: PD14
23: PD15
24: PF0
25: PF1
26: PF2
27: PF3
28: PF4
29: PF5
30: PF6
31: PF7
USART1 Asynchro-
nous Transmit. Al-
so used as receive
input in half duplex
communication.
USART1 Synchro-
nous mode Master
Output / Slave In-
put (MOSI).
US2_CLK
12: PF0
13: PF1
14: PF3
15: PF4
16: PF5
17: PF6
18: PF7
30: PA5
USART2 clock in-
put / output.
US2_CS
11: PF0
12: PF1
13: PF3
14: PF4
15: PF5
16: PF6
17: PF7
29: PA5
USART2 chip se-
lect input / output.
US2_CTS
10: PF0
11: PF1
12: PF3
13: PF4
14: PF5
15: PF6
16: PF7
28: PA5
USART2 Clear To
Send hardware
flow control input.
US2_RTS
9: PF0
10: PF1
11: PF3
12: PF4
13: PF5
14: PF6
15: PF7
27: PA5
USART2 Request
To Send hardware
flow control output.
US2_RX
13: PF0
14: PF1
15: PF3
16: PF4
17: PF5
18: PF6
19: PF7
31: PA5
USART2 Asynchro-
nous Receive.
USART2 Synchro-
nous mode Master
Input / Slave Out-
put (MISO).
MGM13S Mighty Gecko SiP Module Data Sheet
Pin Definitions
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