Renesas User System Interface Board HS7047ECH61H Instrukcja Użytkownika Pobierz pdf (Strona 34)

Evaluation chip

board

Crystal oscillator terminals

Crystal

oscillator

Enlarged

view

X1 X2

Figure 2.4 Installing the Crystal Oscillator

External Clock: Follow the procedure listed below to select the external clock.

1. Check that the emulator power switch is turned off. (Check that the power LED is not lit.)

2. Connect the evaluation chip board to the user system and supply a clock through the EXTAL pin from the

user system.

3. Turn on the user system power and then the emulator power. The external clock will then be automatically

set.

Emulator Internal Clock: Specify an emulator internal clock in the [Configuration] dialog box.

Reference:

When the emulator system program is initiated, the emulator automatically selects the MCU clock source

according to the following priority:

1. User system’s clock when an external clock is supplied from the user system

2. Crystal oscillator when attached to the evaluation chip board

3. Emulator internal clock

1 2 ... 29 30 31 32 33 34 35 36 37 38 39 ... 242 243

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Renesas User System Interface Board HS7047ECH61H Instrukcja Użytkownika Strona 34