Sensor Io Expansion Header J53; Figure 10 J53 Sensor Expansion Header; Table 3.8-5 Jtag Header J51 Pin Out - Intrinsyc Lantronix Open-Q 820 User Manual

Note: Lantronix does not provide software support for JTAG
Description
GND
GND
GND
GND
GND
GND
GND
GND via 4.7KΩ pull down
GND
JTAG detect N signal

3.8.8 Sensor IO Expansion Header J53

The sensor expansion header J53 allows for a 24-pin connection to an optional sensor board. If user
application does not require a sensor, then this header can be used for other applications that require I2C or
GPIO input and output connections.
Open-Q™ 820 Dev Kit User Guide

Table 3.8-5 JTAG Header J51 Pin out

Signal Pin Description
NO
GND J51[2] JTAG Power detect
GND J51[4] Target RESET_N signal
GND J51[6] TDI Signal (Target DATA IN)
GND J51[8] TMS Signal
GND J51[10] TCK Signal
GND J51[12] JTAG_RTCK signal
GND J51[14] TDO Signal (Target Data
Out)
GND J51[16] Source RESET_N signal
GND J51[18] NC
DET_N J15[20] GND via 4.7KΩ pull down

Figure 10 J53 Sensor Expansion Header

Open-Q™ 820 Development Kit
Signal Pin
NO
JTAG_PWR J51[1]
TRST_N J51[3]
TDI J51[5]
TMS J51[7]
TCK J51[9]
JTAG_RTCK J51[11]
TDO J51[13]
SRST_N J51[15]
NC J51[17]
GND J25[19]
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