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參數(shù)資料
| 型號： | IE-178048-NS-EM1 |
| 英文描述： | IE-178048-NS-EM1 User＇s Manual | User＇s Manual[03/2002] |
| 中文描述： | IE瀏覽器- 178048 -納秒- EMI的用戶手冊|用戶手冊[03/2002] |
| 文件頁數(shù)： | 23/39頁 |
| 文件大小： | 194K |
| 代理商： | IE-178048-NS-EM1 |
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CHAPTER 3 INSTALLATION
User’s Manual U14012EJ1V0UM00
23
(3) External clock
An external clock connected to the target system can be used via an emulation probe.
Figure 3-5. When Using an External Clock
Remark
The clock supplied by the target system’s clock generator (encircled in the figure) is used.
3.2.2
Main system clock settings
Table 3-1. Main System Clock Settings
IE-178018-NS-EM1
Frequency of Main System Clock
Parts Board (mainCLK)
CPU Clock Source
Selection (ID)
When using clock that is
already mounted on
emulation board
4.5 MHz
Oscillator used
When using clock mounted
by user
Oscillator assembled by user
Internal
When using external clock
Other than 4.5 MHz
Oscillator not used
External
Caution
When using an external clock, open the configuration dialog when starting the integrated debugger
(ID78K0-NS) and select “External” in the area (Clock) for selecting the CPU’s clock source (this
selects the user’s clock).
Remark
The IE-178018-NS-EM1’s factory settings are those listed above under “when using clock that is already
mounted on emulation board”.
(1) When using clock that is already mounted on emulation board
When the IE-178018-NS-EM1 is shipped, a 4.5-MHz crystal oscillator is already mounted in the IE-178018-NS-
EM1’s mainCLK socket. When using the factory-set mode settings, there is no need to make any other hardware
settings.
When starting the integrated debugger (ID78K0-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).
IE-78K0-NS
IE-178018-NS-EM1
Clock generator
(to be used)
Emulation probe
Target system
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