CHAPTER 3 INSTALLATION
User’s Manual U16431EJ1V0UM
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(2) Clock that is mounted by user
The user can mount any clock supported by the set specifications on the IE-789882-NS-EM1. This feature is
effective when debugging at a different frequency than the clock already mounted.
Subsystem clock
Remove the crystal oscillator (X2) that is already mounted on the emulation board, and mount the crystal
oscillator to be used.
Figure 3-6. When Using User-Mounted Clock (Subsystem Clock)
IE-78K0S-N or IE-78K0S-NS-A
IE-789882-NS-EM1
Emulation probe
Target system
Clock oscillator or
external clock (not used)
Oscillator
(used)
X2
Remark
The clock that is supplied by the oscillator of the IE-789882-NS-EM1 (encircled in the figure) is
used.
3.4.2 Main system clock settings
Table 3-4 shows the main system clock settings of the IE-789882-NS-EM1.
Table 3-4. Main System Clock Settings
IE-789882-NS-EM1
Frequency of Main System Clock
X1 Socket
CPU Clock Source
Selection (ID78K0S-NS)
(1) When using clock that is already mounted
on emulation board
500 kHz (fixed)
Oscillator
Internal
Caution
Open the configuration dialog box when starting the integrated debugger (ID78K0S-NS) and
select “Internal” in the area (Clock) for selecting the CPU’s clock source. Setting the main
system clock so that a pulse input from the target system (using an external clock) causes the
system to hang up.
