Hitachi H8/3692 ユーザーズマニュアル

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Rev. 1.0, 07/01, page 68 of 372
5.4.2
Notes on Board Design
When using a crystal resonator (ceramic resonator), place the resonator and its load capacitors as
close as possible to the OSC
1
 and OSC
2
 pins. Other signal lines should be routed away from the
oscillator circuit to prevent induction from interfering with correct oscillation (see figure 5-11).
OSC
1
OSC
2
C
1
C
2
Signal A
Signal B
Avoid
Figure 5-11  Example of Incorrect Board Design