
Table 28.
I/O configuration for the Pmod™ interface
I/O PF12
STMod+
SEL_34
I/O PF11
STMod+
SEL_12
0
0
SPI interface PB13/PB5/PB4/PG9 used for SPI mode
0
1
mikroBUS™ interface PC10/PC11 for UART mode and PB13/PG9 for SPI mode
1
0
Not used
1
1
UART interface PB13/PC10/PC11/PD2 used for UART mode
1. The default configuration is shown in bold.
™
connector pinout.
Figure 23.
CN4 Pmod
™
connector pinout
™
interface and connector pinout.
Table 29.
CN4 Pmod
™
connector pinout
Function
STM32
pin
Signal name
Pin name
Pin
Pin
Pin name
Signal name
STM32
pin
Function
SPI3
USART3
PB13
PB13
SPI_NSS
UART_CTS
1
1
7
7
PMOD_INT
PF5
INT5
SPI3
USART3
PB5
PC10
SPI_MOSI
UART_TX
2
2
8
8
PMOD_RST
PC9
Reset
SPI3
USART3
PB4
PC11
SPI_MISO
UART_RX
3
3
9
9
NC
NC
NC
SPI3
USART3
PG9
PD2
SPI_SCK
UART_RTS
4
4
10
10
NC
NC
NC
GND
-
GND
5
5
11
11
GND
-
GND
Power
-
VDD
6
6
12
12
VDD
-
Power
UM2617
Pmod™ connector
UM2617
-
Rev 2
page 35/61