QB-V850ESFJ3 Preliminary User’s Manual ZUD-CD-05-0149 22/57
2.3.3 Cautions on changing oscillator
(1) Remove the parts board in OSC1 before changing the resonator.
To remove the parts board, use a high-precision screwdriver. An example of removing the parts board are
shown below.
<1> Insert the screwdriver at the position of pin 7 on the parts board and slightly push up the parts board.
<2> Insert the screwdriver at the position of pin 14 on the parts board and slightly push up the parts board.
<3> Repeat <1> and <2>.
Exercise care not to damage the QB-QB-V850ESFJ3.
(2) Solder a resonator and a capacitor to the parts board supplied with the QB-V850ESSX2.
The setting is as follows.
Pins 1 and 14: Short these pins.
Pins 2 and 13: Connect a capacitor.
Pins 3 and 12: Connect a resonator.
Pins 4 and 11: Leave these pins open.
Pins 5 and 10: Connect a capacitor.
Pins 6 and 9: Short these pins.
Pins 7 and 8: Leave these pins open.
Figure 2-3. Parts Board Settings and Peripheral Circuit
(3) Insert the parts board into the QB-V850ESFJ3. Pay attention to the pin position.
(See
Figure 2-1
.)
2.3.4 Overview of subclock settings
The following types of subclock settings are available.
For details, see
2.3.5 Subclock settings
.
(1) Using the 32.768 kHz resonator mounted in the QB-V850ESFJ3.
(2) Using the 15 kHz (Typ.) RC oscillator configured on the QB-V850ESFJ3.
Oscillation with the resonator on the target system is not supported. Therefore, the in-circuit emulator cannot
emulate the oscillation operation of the clock on the target system.
1
14
2
13
3
12
4
11
5
10
6
9
7
8
Emulation CPU
(
μ
PD70F3380)
X1
X2
Parts board settings
Peripheral circuit
8 9 10 11 12 13 14
7 6 5 4 3 2 1
