NEC IE-789136-NS-EM1, Руководство пользователя

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CHAPTER 3 INSTALLATION
User’s Manual U14363EJ2V0UM
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(3) Pulse input from target system
An external clock connected to the target system can be used via an emulation probe.
Figure 3-5. When Using External Clock
IE-78K0S-NS or IE-78K0S-NS-A
External clock
(to be used)
Emulation probe
Target system IE-789136-NS-EM1
Remark The clock supplied by the target system’s external clock (encircled in the figure) is used.
3.2.2 System clock settings
Table 3-1. System Clock Settings
IE-789136-NS-EM1 Frequency of System Clock
X1 Socket
CPU Clock Source
Selection (ID)
When using clock that is already
mounted on emulation board
5.0 MHz Oscillator used
When using clock mounted by user Oscillator assembled by user
Internal
When pulse is input from target system
Other than 5.0 MHz
Oscillator not used External
Caution When a pulse is input from the target system, open the configuration dialog box when starting
the integrated debugger (ID78K0S-NS) and select “External” in the area (Clock) for selecting the
CPU’s clock source (this selects the user clock).
Remark The IE-789136-NS-EM1 is shipped, the settings for “when using clock that is already mounted on
emulation board” are preset.
(1) When using clock that is already mounted on emulation board
When the IE-789136-NS-EM1 is shipped, a 5.0 MHz crystal oscillator is already mounted in the IE-789136-NS-
EM1’s X1 socket. When using the factory-set mode settings, there is no need to make any other hardware
settings.
When starting the integrated debugger (ID78K0S-NS), open the configuration dialog box and select “Internal” in
the area (Clock) for selecting the CPU’s clock source (this selects the emulator’s internal clock).