Renesas Compact Emulator M30620T-CPE Technical Information PDF herunterladen (Seite 32)

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(2) Using the Oscillator Circuit on the Target System

To operate the compact emulator with the oscillator circuit on the target system, construct the

oscillator circuit as shown in Figure 3.1 in the target system and input the oscillator output at 50%

duty (within the operating range of the evaluation MCU) into the XIN pin. And the XOUT pin should

be open. It is same for sub-clock oscillator (XCIN and XCOUT).

Figure 3.1 External oscillator circuit

Make note of the fact that in the oscillator circuit shown in Figure 3.2 where a resonator is connected

between the XIN and XOUT pins, oscillation does not occur because an emulation circuit is used

between the evaluation MCU and the target system. It is same for sub-clock oscillator circuits (XCIN

and XCOUT).

Figure 3.2 Circuit in which oscillation does not occur (same for XCIN-XCOUT)

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Renesas Compact Emulator M30620T-CPE Technical Information Seite 32