M306NKT-EPB User’s Manual
2. Setup
REJ10J0519-0200 Rev.2.00 Oct. 16, 2006
Page 42 of 104
2.11 Selecting Clock Supply
2.11.1 Clocks
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 shows the clocks and their initial settings.
Table 2.2 Clock supply to the MCU
Clock
Display of
emulator debugger
Description Default
setting
Internal
Internal oscillator circuit board
(OSC-3 or OSC-2)
Yes
External
Oscillator circuit on the user system
-
Main (X
IN
-X
OUT
)
Generated
Internal generator circuit
(1.0--16.0MHz)
-
Internal
Internal oscillator circuit
(32.768kHz)
-
Sub (X
CIN
-X
COUT
)
External
Oscillator circuit on the user system
Yes
IMPORTANT
Note on Changing the Clock Supply:
z
The clock supply can be set by the Init dialog box when starting up the emulator debugger or inputting CLK
command on the script window.
2.11.2 Using an Internal Oscillator Circuit Board
(1) Kinds of Oscillator Circuit Boards
The PC7501 comes with an oscillator circuit board OSC-3 (30MHz). And an oscillator circuit board OSC-3 (16MHz) and
an oscillator circuit board OSC-2 (bare board) are included with this product.
If you use the internal oscillator circuit board OSC-3 (16MHz) or OSC-2 of the PC7501 as a main clock, choose "Internal"
in the emulator debugger after replacing oscillator circuit boards to change a clock supplied to an MCU.
