U2D-ATOM-31 Macraigor Systems LLC, U2D-ATOM-31 Datasheet - Page 6

• Manufacturer Part Number: U2D-ATOM-31
• Description: USB2DEMON BDM/JTAG ATOM
• Manufacturer: Macraigor Systems LLC
• Series: usb2Demon™r
• Type: In-Circuit Debugger/Programmerr

Specifications of U2D-ATOM-31

• Contents: Module, Adapter, Cable
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: *

USER’S MANUAL
Appendix A
Common OCD pinouts
NOTE: Macraigor Systems accepts NO responsibility for the accuracy of the following
information. We strongly recommend that you use the OCD header specified by the
semiconductor manufacturer. Please refer to the manufacturer’s proper data book or
reference design for information. The pinouts given below may show a subset of the
signals specified by the manufacturer.
General Notes:
Pin Specifications:
Pins are identified by number and type.
• Unless otherwise indicated, all headers are male dual-row Berg style connectors
• We do not specify the use of pull ups or pull downs on any signals although they
• TVcc pins should be the I/O ring voltage and that signal is used to determine the
• Unless otherwise indicated, RESET\ is an open collector signal from the probe to
• Some target boards may use a non-standard connector or a connector that we
• Place the header as close to the processor as possible, use short traces of
• o
• i
• p
• oc = open collector driven from OCD interface, either floating or actively held
• nc = not connected, ie: not driven nor read by OCD interface
• k
on 0.1 centers.
may be needed. Check with the chip manufacturer.
electrical characteristics of the other signals. If you must current limit this line,
allow the probe at least 2 mA.
the target. It should directly drive the target processor and not drive power on
reset circuits or the like.
identify for a different target.
approximately equal length on all clock and data signals.
= input to target processor from OCD interface
= power pin
= key, pin is typically missing from the target board
= output from target processor to OCD interface
low
© 2005 Macraigor Systems LLC
Revision 1.0