ST STM32U575I-EV, Руководство пользователя, Страница: 19 / 105

Table 9 describes the CN13 TAG connector pinout.
Table 9. CN13 TAG connector pinout
Connector
pin number
STM32 pin Board function
1 VDD Power
2 PA13 JTMS_SWDIO: Target SWDIO using SWD protocol or Target JTMS using JTAG protocol
3 GND Power
4 PA14 JTCK_SWCLK: Target SWCLK using SWD protocol or Target JTCK using JTAG protocol
5 GND Power
6 PB3 JTDO_SWO: Target SWO using SWD protocol or Target JTDO using JTAG protocol
7 - NC
8 PA15 JTDI: Not used by SWD protocol, Target JTDI using JTAG protocol, only for external tools
9 PB4 JTRSTN: JTAG RESET protocol
10 NRST NRST: Target NRST using SWD protocol or Target JTMS using JTAG protocol
7.5.2 I/O restriction to other features
Caution: Due to the sharing of some I/Os of STM32U575AII6Q by multiple peripherals, the following limitations apply in
using the TAG features:
•
The TAG function is mainly limited to the SWD function, the TDI and TDO functions are optional.
• The TAG TRSTN function cannot be operated simultaneously with the comparator function.
• The TAG TRSTN function cannot be operated simultaneously with the STMod+ function.
• The TAG JTDI function cannot be operated simultaneously with the UCPD function.
• The TAG JTDO/SWO function cannot be operated simultaneously with the audio MEMS function.
STM32U575I-EV
TAG footprint
UM2854 - Rev 1
page 19/105