Port 1; Table 8-7 Pins Of Port 1 - Fujitsu MB90420/5 (A) Series Hardware Manual

F2mc-16lx family 16-bit microcontrollers

Table of Contents

8.4 Port 1

Port 1 is a general-purpose I/O port that serves both as a resource input. Each pin can be switched between

the resource and the port by the bit. The function as a general-purpose I/O port is mainly explained here.

The configuration, pins, block diagram of the pins, and registers for port 1 are shown below.

n Configuration of port 1

Port 1 consists of the following three elements:

• General-purpose I/O pins, external interrupt input pins (P10/PPG2 to P15/INT0)

• Port 1 data register (PDR1)

• Port 1 direction register (DDR1)

n Pins of port 1

The pins of the port 1 also serve as resource I/O pins, so when using a pin of port 1 as a resource I/O pin, it

cannot be used as a general-purpose I/O port. Table 8-7 shows the pins of port 1.

For the circuit type, see Section 1.7.

Port Function

(hysteresis)