ST STM32U575I-EV, Руководство пользователя, Страница: 24 / 105

Table 13. CN17 JTAG connector pinout describes the JTAG connector pinout.
Table 13. CN17 JTAG connector pinout
Connector
pin number
STM32 pin Board function
1 VDD Power
2 VDD Power
3 PB4 JTRSTN: JTAG RESET protocol
4 GND Power
5 PA15 JTDI: Not used by SWD protocol, Target JTDI using JTAG protocol, only for external tools
6 GND Power
7 PA13 JTMS_SWDIO: Target SWDIO using SWD protocol or Target JTMS using JTAG protocol
8 GND Power
9 PA14 JTCK_SWCLK: Target SWCLK using SWD protocol or Target JTCK using JTAG protocol
10 GND Power
11 - -
12 GND Power
13 PB3 JTDO_SWO: Target SWO using SWD protocol or Target JTDO using JTAG protocol
14 GND Power
15 NRST NRST: Target NRST using SWD protocol or Target JTMS using JTAG protocol
16 GND Power
17 - TRGIN
18 GND Power
19 - TRGOUT
20 GND Power
7.7.2 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 JTAG features:
•
The JTAG function is mainly limited to the SWD function, the TDI and TDO functions are optional.
• The JTAG TRSTN function cannot be operated simultaneously with the comparator function.
• The JTAG TRSTN function cannot be operated simultaneously with the STMod+ function.
• The JTAG TRSTN function cannot be operated simultaneously with the audio MEMS function.
• The JTAG JTDI function cannot be operated simultaneously with the UCPD function.
STM32U575I-EV
JTAG connector
UM2854 - Rev 1
page 24/105