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The offset holes of header J2 allow a removable press fit of standard 0.100 inch header pins to connect flying leads without any soldering necessary.
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The JTAG is ideal for quick configuration and effective debugging.
JTAG signal lines are also available at B2B connector JM4 (pins 70, 72, 74, 76, 78 and 80). See the corresponding pin-out table for additional information on these signals.
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