Chapter 3 Port Functions

Port 1 (P1)

5-bit CMOS tri-state I/O port.

Table 3-1-3 Port 1 Functions

Pin Name

Type

Dual Function

Description

 

 

 

 

P10 to P14

I/O

RMOUT,

Each bit can be set individually as either an input or

 

 

TM2IO to TM4IO

output by the P1DIR register. A pull-up resistor for each

 

 

 

bit can be selected individually by the P1PLU register.

 

 

 

At reset, the input mode is selected and pull-up resistors

 

 

 

are disabled (high impedance output).

 

 

 

 

Port 2 (P2)

4-bit CMOS tri-state input port.

Table 3-1-4 Port 2 Functions

Pin Name

Type

Dual Function

Description

 

 

 

 

P20 to P23

Input

IRQ0,

A pull-up resistor for each bit can be selected individually

 

 

IRQ1(SENS),

by the P2PLU register. At reset, the input mode pull-up

 

 

IRQ2 to 3

resisters are disabled (high impedance output).

 

 

 

Only 48-QFH has P23.

Port 6 (P6)

8-bit CMOS tri-state I/O port.

Table 3-1-5 Port 6 Functions

Pin Name

Type

Dual Function

Description

 

 

 

 

P60 to P67

I/O

 

Each bit can be set individually as either an input or

 

 

 

output by the P6DIR register. A pull-up resistor for each

 

 

 

bit can be selected individually by the P6PLU register. At

 

 

 

reset, the input mode pull-up resisters are disabled (high

 

 

 

impedance output).

 

 

 

 

Overview 39

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Image 53
Panasonic MN101C00 user manual Port 1 P1, Port 1 Functions, Port 2 P2, Port 2 Functions, Port 6 P6, Port 6 Functions