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3.3 Selecting Clock Supply
There are two ways to supply a clock to the MCU, using the oscillator circuit of the emulation pod
or using the oscillator circuit on the target system. Table 3.3 lists the factory-settings of each clock
supply.
Table 3.3 Clock supply to the MCU
Clock Description Display of emulator debugger Default setting
X
IN-XOUT
XCIN-XCOUT
Internal oscillator circuit of emulation pod
(OSC-3: 16 MHz)
Target System
Internal oscillator circuit of emulation pod
(32.768 kHz)
Target System
Internal
External
External
Internal
O
-
-
O
IMPORTANT
Notes on Changing the Clock Supply:
• The clock supply can be set by the Init dialog when starting up the emulator debugger
or inputting CLK command on the script window.
• For XCIN-XCOUT pins, it is necessary to set switches in the emulation pod. For details,
refer to "3.2 Setting Switches and Pullup Resistor" (page 25).