ST STM32F4DISCOVERY - Page 28

Hardware and layout UM1472
28/42 DocID022256 Rev 4
PC7
I2S3_MCK/
TIM8_CH2/
SDIO_D7/
USART6_RX/
DCMI_D1/
TIM3_CH2
64
MCLK
- - - - - - - - - - - - 48
PC8
TIM8_CH3/
SDIO_D0/
TIM3_CH3/
USART6_CK/
DCMI_D2
65 - - - - - - - -
- - - - - 45
PC9
I2S_CKIN/
MCO2/
TIM8_CH4/
SDIO_D1/
I2C3_SDA/
DCMI_D3/
TIM3_CH4
66 - - - - - - - -
- - - - - 46
PC10
SPI3_SCK/
I2S3_CK/
UART4_TX/
SDIO_D2/
DCMI_D8/
USART3_TX
78
SCLK
- - - - - - - - - - - - 37
PC11
UART4_RX/
SPI3_MISO/
SDIO_D3/
DCMI_D4/
USART3_RX/
I2S3ext_SD
79 - - - - - - - -
- - - - - 38
PC12
UART5_TX/
SDIO_CK/
DCMI_D9/
SPI3_MOSI/
I2S3_SD/
USART3_CK
80
SDIN
- - - - - - - - - - - - 35
Table 5. MCU pin description versus board function (continued)
MCU pin Board function
Main
function
Alternate
functions
LQFP100
CS43L22
MP45DT02
LIS302DL or LIS3DSH
Pushbutton
LED
SWD
USB
OSC
Free I/O
Power supply
CN5 CN2
P1 P2