Limitations And Hardware Configuration - Jtag (Cn14) Or Mipi10 (Cn16); Interface; Table 5. Stdc14 / Mipi10 Debugging Connector Cn16; Table 6. Stdc14 / Mipi10 Debug Connector Cn16 - ST STM32H7B3I-EVAL User Manual

6.2.3

Limitations and hardware configuration - JTAG (CN14) or MIPI10 (CN16)

Limitations: STM32H7B3LIH6QU JTAG cannot be connected at the same time to STLINK-V3E and to CN14 or
CN16 connector. To be able to use JTAG on CN14 or CN16 connector, it is necessary to disconnect JTAG signals
from STLINK-V3E (JTMS, JTCK, JTDO, and NRST).
• To do so, R409, R401, R399, and R398 must be removed.
6.2.4

Interface

Pin number
1 (STDC14)
3 (MIPI10)
5 (MIPI10)
7 (MIPI10)
9 (MIPI10)
11 (MIPI10)
13 (STDC14)
MIPI10 STDC14
pin pin
- 1
- 2
1 3
2 4
3 5
4 6
5 7
6 8
7 9
8 10
9 11
10 12
UM2662 - Rev 1
Figure 6. STDC14 / MIPI10 debugging connector CN16
Table 5. STDC14 / MIPI10 debugging connector CN16
Description
NC
+3.3V
GND
GND
KEY (NC)
GNDDetect
VCP_USART_RX / PB14 or PA2
Table 6. STDC14 / MIPI10 debug connector CN16
CN16 Designation
NC Reserved
NC Reserved
T_VCC Target VCC
T_SWDIO Target SWDIO using SWD protocol or Target JTMS (T_JTMS) using JTAG protocol
GND Ground
T_SWCLK Target SWCLK using SWD protocol or Target JCLK (T_JCLK) using JTAG protocol
GND Ground
T_SWO Target SWO using SWD protocol or Target JTDO (T_JTMS) using JTAG protocol
KEY (NC) KEY (NC)
Not used by SWD protocol, Target JTDI (T_JTDI) using JTAG protocol, only for
T_JTDI
external tools
GNDDetect GND detect for plug indicator, used on SWD and JTAG neither
T_NRST Target NRST using SWD protocol or Target JTMS (T_JTMS) using JTAG protocol
External JTAG, SWD, and trace
Pin number
2 NC (STDC14)
4 (MIPI10) SWDIO-TMS / PA13
6 (MIPI10) SWCLK-TCK / PA14
8 (MIPI10) SWO-TDO / PB3
10 (MIPI10)
12 (MIPI10)
14 (STDC14) VCP_USART_TX / PB15 or PA3
UM2662
Description
TDI / PA15
RESET#
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