8.11
Extension pin header for MCU
This connector is a 50-pin, 2.54-mm pitch male connector. It is used to connect the MCU's pins in the module.
Connector
CN12
UM2743 - Rev 1
Table 15.
Extension pin header for MCU
Pin number
Signal name
1
AVDD
2
PB0
3
PA0
4
PB1
5
PA1
6
PB2_R
7
PA2
8
PB3
9
PA3
10
GND
11
PA4
12
PB4
13
PA5
14
PB5
15
PA6
16
PB6
17
PA7
18
PB7_R
19
GND
20
PB8
21
PA8
22
PB9
23
PA9
24
PB10
25
PA10
26
PB11
27
PA11
28
PB14
29
PA12
30
GND
31
PA13
32
PB15
Extension pin header for MCU
How to disconnect with function
Function
block on B-L462E-CELL1 board
Power
(1)
QUADSPI_IO1
USART2_CTS
(1)
QUADSPI_IO0
USART2_RTS
CS_DISP
USART2_TX
SWO
USART2_RX
Power
PA4 is used on LBAD0ZZ1SE, it is
not recommended to use PA4 as an
SPI_NSS
extension pin for daughterboard on
SPI1_MISO
SPI1_SCK
SPI1_MOSI
(1)
QUADSPI_IO3
PB6 is used on LBAD0ZZ1SE, PB6
SF_EN
cannot be used as an extension pin.
(1)
QUADSPI_IO2
PB7_R is used on LBAD0ZZ1SE,
NC_PWR_EN
PB7_R cannot be used as an extension
Power
IIC_SCL
RCC_MCO
IIC_SDA
USART1_TX
(1)
QUADSPI_CLK
USART1_RX
(1)
QUADSPI_nCS
USB_DM
LED3
USB_DP
Power
SWDIO
LED2
UM2743
-
-
-
-
-
-
-
-
-
-
CN12.
-
-
-
-
-
pin.
-
-
-
-
-
-
SB46 OFF
-
-
-
-
-
-
-
page 27/58
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