Datasheet

Section 9 I/O Ports

Rev. 2.00 Sep. 23, 2005 Page 110 of 444

REJ09B0068-0200

• P30 pin

Bit Name PCR30 Pin Function

Setting Value 0 P30 input pin

1 P30 output pin

9.4 Port 5

Port 5 is a general I/O port also functioning as an I

C bus interface I/O pin, an A/D trigger input

pin, and a wakeup interrupt input pin. Each pin of the port 5 is shown in figure 9.4. The register

setting of PMR5 has priority for functions of the pins for both uses.

P57/SCL

P56/SDA

P55/WKP5/ADTR

P54/WKP4

P53/WKP3

P52/WKP2

P51/WKP1

P50/WKP0

Port 5

Figure 9.4 Port 5 Pin Configuration

Port 5 has the following registers.

• Port mode register 5 (PMR5)

• Port control register 5 (PCR5)

• Port data register 5 (PDR5)

• Port pull-up control register 5 (PUCR5)