QB-78K0FX2-T44GB Datasheet, PDF (26/44 Pages) Renesas Technology Corp – IECUBE is a registered trademark of NEC Electronics Corporation in Japan and Germany PC/AT is a trademark of International Business Machines Corporation.

CHAPTER 2 SETUP PROCEDURE
2.3.4 Subsystem clock
(1) For mounting internally generated clock
Select “System Clock” in the debugger and select the desired frequency from the dialog menu.
(2) For using target system clock
Select “External Clock” in the debugger to use the clock input from the target system.
To input the clock from the target system, input the square wave with the same potential as the target device to
the clock pin (XT2) (inputting inverted waveform to the XT1 pin is unnecessary).
2.4 Software Settings
For details, see the ID78K0-QB Ver. 2.90 Integrated Debugger Operation User's Manual (U17437E).
2.5 Mounting and Connecting Connectors
This section describes the methods of connecting the QB-78K0FX2 and target system.
Make connections with both the QB-78K0FX2 and target system powered OFF.
The following abbreviations are used in this section.
• NQ: Target connector
• YQ: YQ connector
• EA: Exchange adapter
• HQ: Mount adapter
• CA: Check pin adapter
• YS: Space adapter
2.5.1 Mounting NQ in target system
(1) Thinly apply a two-component epoxy adhesive (hardening time at least 30 minutes) to the ends of the four
projections on the base of the NQ and adhere the NQ to the user board (clean the surface of the user board using
alcohol or the like). If alignment of user board pads to NQ leads is difficult, align them as in (2).
(2) Align by inserting the guide pins for alignment for the NQ (NQ-Guide) through the pin holes on the top of the NQ.
Accessory holes are φ1.0 mm non-through holes in 2 or 3 places.
(For hole positions, see the particular NQ drawing.)
(3) Solder after fitting the HQ to the NQ. This is to prevent troubles such as flux or solder splatter and adhering to
the NQ contact pins when soldering.
● Soldering conditions Solder reflow
At 240°C for a maximum of 20 seconds
Manual soldering
At 240°C for a maximum of 10 seconds (1 pin)
Caution Do not perform washing by flux immersion or vapor.
(4) Take away the guide pins.
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User’s Manual U17669EJ3V0UM