HD64F3664FPV Datasheet, PDF (158/446 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Section 9 I/O Ports
9.3.5 Pin Functions
The correspondence between the register specification and the port functions is shown below.
• P57/SCL Pin
Register
ICCR
Bit Name ICE
Setting Value 0
1
[Legend]
X: Don't care.
PCR5
PCR57
0
1
X
Pin Function
P57 input pin
P57 output pin
SCL I/O pin
SCL performs the NMOS open-drain output, that enables a direct bus drive.
• P56/SDA Pin
Register
ICCR
Bit Name ICE
Setting Value 0
1
[Legend]
X: Don't care.
PCR5
PCR56
0
1
X
Pin Function
P56 input pin
P56 output pin
SDA I/O pin
SDA performs the NMOS open-drain output, that enables a direct bus drive.
• P55/WKP5/ADTRG Pin
Register
PMR5
Bit Name WKP5
Setting Value 0
1
[Legend]
X: Don't care.
PCR5
PCR55
0
1
X
Pin Function
P55 input pin
P55 output pin
WKP5/ADTRG input pin
Rev. 6.00 Mar. 24, 2006 Page 128 of 412
REJ09B0142-0600