STMicroelectronics STM32H7 Nucleo-144 User Manual

UM2407 Rev 1 35/48
UM2407 Board connectors
47
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.
Figure 16. USB OTG FS Micro-AB connector CN13 (front view)
The related pinout for the USB OTG FS connector is listed in Table 16.
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.
Table 16. USB OTG FS Micro-AB connector pinout
Connector
Pin
number
Pin
name
Signal name MCU pin Function
CN13
1 VBUS USB_FS_VBUS PA9 5 V power
2 DM USB_FS_N PA11
USB differential pair
M
3 DP USB_FS_P PA12
USB differential pair
P
4 ID USB_FS_ID PA10 -
5 GND - - GND

STMicroelectronics STM32H7 Nucleo-144 Specifications

General

Brand	STMicroelectronics
Model	STM32H7 Nucleo-144
Category	Motherboard
Language	English