ST STM32F4DISCOVERY User Manual page 30

Hardware and layout
Table 5. MCU pin description versus board function (continued)
MCU pin
Main Alternate
function functions
FSMC_D13/
PD8
USART3_TX
FSMC_D14/
PD9
USART3_RX
FSMC_D15/
PD10
USART3_CK
FSMC_A16/
PD11
USART3_CTS
FSMC_A17/
PD12 TIM4_CH1/
USART3_RTS
FSMC_A18/
PD13
TIM4_CH2
FSMC_D0/
PD14
TIM4_CH3
FSMC_D1/
PD15
TIM4_CH4
TIM4_ETR/
PE0 FSMC_NBL0/
DCMI_D2
FSMC_NBL1/
PE1
DCMI_D3
TRACECLK/
PE2 FSMC_A23/
ETH_MII_TXD3
TRACED0/
PE3
FSMC_A19
30/42
55 - - - -
56 - - - -
57 - - - -
58 - - - -
59 - - - -
60 - - - -
61 - - - -
62 - - - -
97 - - -
98 - - -
1 - - - -
2 - - -
DocID022256 Rev 4
Board function
- - - - -
- - - - -
- - - - -
- - - - -
- - - -
- - - -
- - - -
- - - -
- - - - -
- - - - -
- - - - -
- - - - -
UM1472
- - - 40 -
- - - 41 -
- - - 42 -
- - - 43 -
- - - 44 -
- - - 45 -
- - - 46 -
- - - 47 -
- - - - 17
- - - - 18
- - - - 15
- - - - 16