Renesas M306NKT3 用户手册

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页码 104
M306NKT3-RPD-E User’s Manual 
2. Setup 
REJ10J0326-0400 Rev.4.00 Sep. 01, 2006 
 
Page 41 of 104 
 
2.9.3 Selecting Clock Supply 
 
(1) Clock Supply to the MCU 
You can choose a clock supplied to the evaluation MCU by the Emulator tab in the Init dialog box of the emulator debugger. 
Table 2.2 lists the factory-settings of each clock supply when you install the emulator debugger. 
 
Table 2.2 Clock Supply to the MCU 
Clock 
Display of emulator debugger Description Default 
setting 
Internal 
Internal oscillator circuit of emulation pod 
(OSC-3: 16.0MHz or OSC-2) 
Yes 
Main (X
IN
-X
OUT
External User 
system 
Internal 
Internal oscillator circuit of emulation pod 
(32.768kHz) 
Sub (X
CIN
-X
COUT
External User 
system 
Yes 
 
 
 
IMPORTANT
 
Notes on Changing the Clock Supply: 
 
 
The clock supply can be set in the Init dialog box when starting up the emulator debugger or inputting CLK 
command on the script window. 
 
For pins X
CIN
-X
COUT
, it is necessary to set the switches in the emulation pod. For details, refer to "2.9.4 Switch 
Settings" (page 45). 
 
 
(2) Using the Internal Oscillator Circuit Board 
An oscillator circuit board for 16.0MHz (OSC-3) is mounted on this product. Also the oscillator circuit board (OSC-2) is 
attached to change the oscillation frequency. When you use an internal oscillator circuit as a main clock, “Internal” can be set 
by the emulator debugger.