Datasheet
Section 9 I/O Ports 
    Rev. 3.00 Mar. 15, 2006 Page 127 of 526 
   REJ09B0060-0300 
•  P56/SDA pin 
Register ICCR PCR5   
Bit Name ICE  PCR56 Pin Function 
Setting Value  0  0  P56 input pin 
    1  P56 output pin 
  1  X  SDA I/O pin 
[Legend]  X: Don't care. 
SDA performs the NMOS open-drain output, that enables a direct bus drive. 
•  P55/WKP5/ADTRG pin 
Register PMR5 PCR5   
Bit Name WKP5 PCR55 Pin Function 
Setting Value  0  0  P55 input pin 
    1  P55 output pin 
 1 X WKP5/ADTRG input pin 
[Legend]  X: Don't care. 
•  P54/WKP4 pin 
Register PMR5 PCR5   
Bit Name WKP4 PCR54 Pin Function 
Setting Value  0  0  P54 input pin 
    1  P54 output pin 
 1 X WKP4 input pin 
[Legend]  X: Don't care. 
•  P53/WKP3 pin 
Register PMR5 PCR5  
Bit Name  WKP3  PCR53  Pin Function 
Setting Value  0  0  P53 input pin 
    1  P53 output pin 
 1 X WKP3 input pin 
[Legend]  X: Don't care. 










