HD64F2168 Datasheet, PDF (278/874 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer

• PC0/SCL2
The pin function is switched as shown below according to the combination of the ICE bit of
the IIC_2 ICCR and the PC0DDR.
ICE
PC0DDR
Pin Function
0
PC0 input pin
0
1
PC0 output pin
1

SCL2 input/output pin
8.13 Port D
Port D is an 8-bit multi-function I/O port that supports the following register set. Port D functions
as both the IIC_5 I/O pin, and the LPC I/O pin. Ports D7 and D6 are NMOS push-pull outputs.
• Port D data direction register (PDDDR)
• Port D output data register (PDODR)
• Port D input data register (PDPIN)
8.13.1 Port D Data Direction Register (PDDDR)
PDDDR is used to specify the input/output attribute of each pin of port D.
Bit Bit Name Initial Value R/W Description
7
PD7DDR 0
6
PD6DDR 0
5
PD5DDR 0
4
PD4DDR 0
3
PD3DDR 0
2
PD2DDR 0
1
PD1DDR 0
W When the general input/output port function is
W ^{selected, and the given bit is set to 1, the}
corresponding pin will function as an output port, and
W _{when the bit is cleared to 0, the pin will function as an}
W ^{input port.}
W ^{This register is assigned to the same address as that}
of PDPIN. When this address is read, the port D
W _{states are returned.}
W
0
PD0DDR 0
W
Rev. 3.00, 03/04, page 238 of 830