Usb Otg Fs Connector Cn13; Ethernet Rj45 Connector Cn14; Table 16. Usb Otg Fs Micro-Ab Connector Pinout; Figure 16. Usb Otg Fs Micro-Ab Connector Cn13 (Front View) - STMicroelectronics STM32H7 Nucleo-144 User Manual

UM2407
7.2

USB OTG FS connector CN13

An USB OTG Full Speed communication link is available at USB Micro-AB receptacle
connector CN13. Micro-AB receptacle enables USB Host and USB Devices features.
The related pinout for the USB OTG FS connector is listed in
Connector
CN13
7.3

Ethernet RJ45 connector CN14

The STM32H7 Nucleo-144 board supports 10Mbps/100Mbps Ethernet communication with
the U15 LAN8742A-CZ-TR PHY from MICROCHIP and CN14 integrated RJ45 connector.
The Ethernet PHY is connected to the MCU via the RMII interface.
The 25 MHz clock for the PHY is generated by oscillator X4. The 50 MHz clock for the MCU
(derived from the 25 MHz crystal oscillator) is provided by the RMII_REF_CLK of the PHY.

Figure 16. USB OTG FS Micro-AB connector CN13 (front view)

Table 16. USB OTG FS Micro-AB connector pinout

Pin Pin
number name
1 VBUS
2 DM
3 DP
4 ID
5 GND
UM2407 Rev 1
Signal name
USB_FS_VBUS
USB_FS_N
USB_FS_P
USB_FS_ID
-
Board connectors
Table 16.
MCU pin Function
PA9 5 V power
USB differential pair
PA11
M
USB differential pair
PA12
P
PA10 -
- GND
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