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3.3.15 JTAG Connector
JTAG Connector CN1
Pin
Signal
1
+1.8V_RUN
2
JTAG_TCK
3
JTAG_TMS
4
JTAG_TDI
5
JTAG_TDO
6
JTAG_RST#
7
GND
3.3.16 Power and Reset buttons
SBC-C57 board can offer a dual push-button Switch (P/N TS-472-DBS-BB) for the On/Off and System Reset functionalities.
When upper pushbutton is toggled the board will turn on from off and respectively turn off from on.
When the lower push button is toggled
Please be aware that the dual push button switch is available only on board in commercial temperature range, since it cannot sustain
the full industrial temperature range.
3.3.17 Power and Reset Connector
ON/OFF and Reset Connector
Pin
Signal
1
ONOFF
2
GND
3
RST
SBC-C57
SBC-C57 User Manual - Rev. First Edition: 1.0 - Author: S.O. - Reviewed by R.Z. - Copyright © 2021 SECO S.p.A.
The i.MX8X family of processors includes a System JTAG Controller (SJC) providing debug and test controls
for maximum security. On SBC-C57 board, the JTAG interface is available on connector header CN1, type JST
p/n SM07B-SRSS-TB or equivalent, with the pinout shown on the table to the left.
Mating connector: JST SHR-07V-S receptacle or equivalent with JST SSH-003T-P0.2-H female crimp
terminals.
JTAG_RST#: power section reset input, active low signal, electrical level +1V8_RUN with a 10KΩ pull-up resistor
All other JTAG signals are directly connected to i.MX8X pins with same name. Please refer to i.MX8X
for a description of the signals and their usage.
Independently by the temperature range of the module purchased, it is always available an additional
CN21
connector, CN21, to allow use of external power and reset switches, this is a 3-pin Connector, Type
MOLEX p/n 53398-0371 or equivalent. Mating connector: MOLEX 51021-0300 receptacle with
MOLEX 50079-8000 female crimp terminals.
ONOFF: input signal, pulled high at +1.8V_RUN with a 10
turn on from off and respectively turn off from on.
RST_BTN: input signal, pulled high at
be reset.
, when toggled the board will
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