Renesas 32176 Manual De Usuario

32176 Group 

Starter Kit User’s Manual M3A-2152 

REJ10B0224-0300/Rev.3.00 

Jan. 2007 

Page 51 of 82 

 

2.5 Oscillator 

Circuit 

 

The oscillator circuit can be selected from three options by using the jumper J1: a surface 
mount-type 10 MHz crystal oscillator module, a DIP-type crystal oscillator module or a crystal 
resonator.  
By default, the surface mount-type 10 MHz crystal oscillator module is selected. 

 

 

 
 

 

 
 

 

 
 

 

 
 

 

 
 

 

 
 

 

 
Figure 2.5  Oscillator Circuit  
 

Note: The shaded sections in the above diagram have only patterns available. When using the resonator Y1, please 

be sure to add capacitors (C3, C4) and a resistor (R4). 

 

Table 2.8    Oscillator Circuit Connections (Jumper)   

Name Default  Condition 

Description 

{

 

Shorted 

between 1–4 

Outputs a clock from X1 (surface mount-type oscillator module) 

 

Shorted 

between 2–4 

Outputs a clock from X2 (DIP-type oscillator module) 

J1 

 

Shorted 

between 3–4 

Outputs a clock from Y1 (resonator) 

Note: The J1 jumper is shorted by soldering. 

 

U1
M32R/ECU

XOUT

J1

1

2

X1

XIN

OUT

C3

R3

R4

Y1

X2

C4

OUT

3

4

Surface
mount-type
oscillator module

DIP-type
oscillator module