
I/O
Configuration
PC11
PC11 is connected to SDCARD SDIO_D3.
PC11 is shared with Pmod
™
pin3 / STMod+ pin 3 (UART_RX function).
PC12
PC12 is connected to SDCARD SDIO_CLK.
PD2
PD2 is connected to SDCARD SDIO_CMD.
PD2 is shared with Pmod
™
pin 4 / STMod+ pin 3 (UART_RTS function).
shows the CN1 SD card connector.
Figure 20.
CN1 SD card connector
describes the CN1 SD card connector pinout.
Table 19.
CN1 SD card connector pinout
Pin
Pin names
Signal name
STM32 pin
Function
1
DAT2
SDIO.D2
PC10
SDIO.D2
2
DAT3_CD
SDIO.D3
PC11
SDIO.D3
3
CMD
SDIO.CMD
PD2
SDIO.CMD
4
VDD
VDD
-
VDD_SDCARD
5
CLK
SDIO.CLK
PC12
SDIO.CLK
6
VSS
GND
-
GND
7
DAT0
SDIO.D0
PC8
SDIO.D0
8
DAT1
SDIO.D1
PC9
SDIO.D1
9
CARD_DETECT
SDIO.DETECT
PF2
SDCARD_DETECT active LOW
UM2617
microSD™ card
UM2617
-
Rev 2
page 28/61