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(1)Using the Oscillator Circuit on the Target System
When you turn on the power supply, the internal clock of the emulation pod is selected to supply the
clock to the MCU. To use the external clock on the target system, change the clock by the CLK
command of the emulator debugger. (For details, refer to the user's manual of the emulator debugger.)
IMPORTANT
Notes on the External Clock:
• Make note that in the oscillator circuit shown in Figure 3.11 where a resonator is
connected between pins XIN and XOUT, oscillation does not occur because a
flexible cable, buffer IC and other devices are used between the evaluation MCU and
the target system.
• Make note that in the oscillator circuit shown in Figure 3.11 where a resonator is
connected between pins XCIN and XCOUT, oscillation does not occur because a
flexible cable, buffer IC and other devices are used between the evaluation MCU and
the target system.
• To operate the emulation pod with an external clock, construct the oscillator circuit
as shown in Figure 3.10 in the target system and input the oscillator output at 50%
duty (within the operating range of the evaluation MCU) into pins XIN and XCIN.
And pins XOUT and XCOUT should be open.
Figure 3.10 External oscillator circuit
Figure 3.11 Circuit in which oscillation does not occur (same for XCIN-XCOUT)