Renesas Emulation Probe for M32C/87 Group M30870T-EPB Manuel d'utilisateur télécharger pdf (Page 45)

M30870T-EPB User’s Manual 2. Setup

R20UT0209EJ0400 Rev.4.00 Page 45 of 106

Aug 16, 2012

2.10.2 Selecting Clock Supply

There are two ways to sup

ply a clock to the MCU, using the oscillator circuit of the emulator or using the oscillator circuit on

the user system. Table 2.5 lists the factory-settings of each clock supply.

Table 2.5 Clock supply to the MCU and default settings

Clock Display of emulator debugger Description Default setting

Internal

Internal oscillator circuit

(OSC-3 or OSC-2)

Yes

External Oscillator of user system -

Main X

-X

OUT

Generated

Internal generator circuit

(1.0 to 32.0 MHz)

Internal

Internal oscillator circuit

(32.768 kHz)

Sub X

CIN

-X

COUT

External Oscillator of user system Yes

Notes on Changing the Clock Supply:

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.

For X

CIN

-XC

OUT

, it is necessary to set switches in the emulator. For details, refer to "2.10.1 Setting

Switches of Emulation Probe" (page 40).

(1) Using an Internal Oscillator Circuit Board

1) Kinds of Oscillator Circuit Boards

The PC7501 comes with an oscillator circuit board OSC-3 (30 MHz). And an oscillator circuit board OSC-3 (32 MHz)

and an oscillator circuit board OSC-2 (bare board) are included with this product. If you use the internal oscillator

circuit board OSC-3 (32 MHz) 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.

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Renesas Emulation Probe for M32C/87 Group M30870T-EPB Manuel d'utilisateur Page 45

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