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UM2407 Extension connectors

UM2407 Rev 2 39/50

NUCLEO-H723ZG, NUCLEO-H743ZI2, and NUCLEO-H753ZI pin assignments

Table 18. CN7 ZIO connector pinout

(1)

name

Signal name

STM32H7

MCU

Function

Pin Pin name Signal name STM32H7 pin MCU Function

1D16I2S_A_MCK PC6 I2S_2 2D15 I2C_A_SCL PB8 I2C_1_SCL

3D17I2S_A_SD PB15 I2S_2 4D14 I2C_A_SDA PB9 I2C_1_SDA

5D18I2S_A_CK PB13

(2)

I2S_2 6VREFPVREFP - VDDA/VREFP

7D19I2S_A_WS PB12 I2S_2 8GND GND - -

9D20I2S_B_WS PA15 I2S_3 10 D13 SPI_A_SCK PA5 SPI1_SCK

11 D21 I2S_B_MCK PC7 I2S_3 12 D12 SPI_A_MISO PA6 SPI1_MISO

13 D22

I2S_B_SD/

SPI_B_MOSI

PB5

I2S_3/

SPI3

14 D11

SPI_A_MOSI /

TIM_E_PWM1

PB5

(3)

SPI1_MOSI/

TIM3_CH2

15 D23

I2S_B_CK/

SPI_B_SCK

PB3

I2S_3/

SPI3

16 D10

SPI_A_CS /

TIM_B_PWM3

PD14

SPI1_CS/

TIM4_CH3

17 D24 SPI_B_NSS PA4 SPI3 18 D9 TIM_B_PWM2 PD15 TIM4_CH4

19 D25 SPI_B_MISO PB4 SPI3 20 D8 I/O PF3 -

1. For more details, refer to Table 14: Solder bridge and jumper configuration.

2. PB13 is used as I2S_A_CK and connected to CN7 pin 5. If JP6 is ON, it is also connected to Ethernet PHY as RMII_TXD1. In this case, only one function of the Ethernet or

I2S_A must be used.

3. PA7 is used as D11 and connected to CN7 pin 14. If SB31 is ON, it is also connected to both Ethernet PHY as RMII_CRS_DV. In this case, only one function of the Ethernet

or D11 must be used.

Table 19. CN8 ZIO connector pinout

Pin Pin name Signal name

STM32H7

MCU Function Pin Pin name Signal name

STM32H7

MCU Function

1NC NC - - 2D43 SDMMC_D0 PC8 SDMMC

3IOREFIOREF - 3.3 V Ref 4D44

SDMMC_D1

I2S_A_CKIN

PC9