Kontron SMARC-sA3874i - Manual (Page 65)

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User’s Guide
CPU JTAG Connector: JST SM10B-SRSS-TB, 1mm pitch R/A SMD Header.
Pin # Signal Notes
1 V_ARM_JTAG 1.8 Volts /3.3 Volts
2 ARM_JTAG_TRST
3 ARM_JTAG_TMS
4 ARM_JTAG_TDO
5 ARM_JTAG_TDI
6 ARM_JTAG_TCK
7 ARM_JTAG_RTCK
8 GND
9 MFG_MODE#
10 GND
Caution! The JTAG port is for internal use only. Do not connect any devices.
4.2.2 Connector J1 – CPLD JTAG
Figure 15 shows the CPLD JTAG connector pin1 & location detail is shown in the figure below.
Figure 15: CPLD JTAG