7 Board functions
This section explains all the functions, peripherals, and interfaces of the board. Refer to Features, Hardware
layout and configuration, Figure 5, and Figure 6 STM32U5G9J-DK top and bottom layout views.
7.1 USB
The
STM32U5G9J-DK2 board provides a USB Type-C
®
connector (CN2) that can support a custom USB
application (Sink mode only).
VBUS (5 V) and CC lines have overvoltage protection
The green LED (LD5) lights up when powered by a USB Host.
Figure 16. USB Type-C
®
connector pinout (CN4)
GND TX1+ TX1- VBUS CC1 D+ D- SBU1 VBUS RX2- RX2+ GND
GND RX1+ RX1- VBUS SBU2 D- D+ CC2 VBUS TX2- TX2+ GND
B12 B11 B10 B9 B8 B7 B6 B5 B4 B3 B2 B1
A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12
Table 8. USB Type-C
®
connector (CN2)
STM32
pin
Signal name Pin name Pin Pin Pin name Signal name
STM32
pin
- GND GND A1 B12 GND GND -
- - TX1+ A2 B11 RX1+ - -
- - TX1- A3 B10 RX1- - -
- VBUS VBUS A4 B9 VBUS VBUS -
- UCPD_CC1_C CC1 A5 B8 SBU2 - -
PA12 USBC_CN_HS_P D+ A6 B7 D- USBC_CN_HS_N PA11
PA11 USBC_CN_HS_N D- A7 B6 D+ USBC_CN_HS_P PA12
- - SBU1 A8 B5 CC2 UCPD_CC2_C -
- VBUS VBUS A9 B4 VBUS VBUS -
- - RX2- A10 B3 TX2- - -
- - RX2+ A11 B2 TX2+ - -
- GND GND A12 B1 GND GND -
UM3223
Board functions
UM3223 - Rev 1
page 18/37
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