Table 7. Cn5 Stdc14/Mipi-10 Debug Connector Pinout; Figure 9. Cn5 Stdc14/Mipi-10 Debug Connector - ST STM32U5 User Manual

Figure 9 shows the CN5 STDC14/MIPI-10 connector.
Table 7 describes the STDC14/MIPI-10 connector pinout.
MIPI-10 pin
-
-
1
2
3
4
5
6
7
8
9
10
-
-
Two SN74LVC2T45DCUT level shifters are used on VCP and SWD interface to offer a debug capability with 1V8
powered MCU. One level shifter is used for a signal from the MCU target (1V8) to STLINK-V3E (3V3).
• U1 used for T_VCP_TX signal
• U9 used for T_SWDIO and T_SWO signal
UM2861 - Rev 2
Figure 9. CN5 STDC14/MIPI-10 debug connector
Table 7. CN5 STDC14/MIPI-10 debug connector pinout
STDC14 pin CN5
1 NC
2 NC
3 VDD
4 T_SWDIO
5 GND
6 T_SWCLK
7 GND
8 T_SWO
9 NC
10 T_JTDI
11 GNDDetect
12 T_NRST
13 T_VCP_RX
14 T_VCP_TX
Function
Reserved
Reserved
Target VDD
Target SWDIO using SWD protocol or target JTMS (T_JTMS) using
JTAG protocol
Ground
Target SWCLK using SWD protocol or target JTCK (T_JTCK) using
JTAG protocol
Ground
Target SWO using SWD protocol or target JTDO (T_JTDO) using JTAG
protocol (SB44 ON)
-
Not used by SWD protocol, target JTDI (T_JTDI) using JTAG protocol,
only for external tools (SB39 OFF)
GND detect for plug indicator
Target NRST using SWD protocol or target JTMS (T_JTMS) using
JTAG protocol
Target RX used for VCP (with UART supporting bootloader)
Target TX used for VCP (with UART supporting bootloader)
UM2861
Embedded STLINK-V3E
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