Port 8 - Fujitsu MB90420/5 (A) Series Hardware Manual

F2mc-16lx family 16-bit microcontrollers

Table of Contents

8.10 Port 8

Port 8 is a general-purpose I/O port that serves both as a resource input and output. 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 8 are shown below.

n Configuration of port 8

Port 8 consists of the following three elements:

• General-purpose I/O pins, resource I/O pins (P80/PWM1P2 to P87/PWM2M3)

• Port 8 data register (PDR8)

• Port 8 direction register (DDR8)

n Pins of port 8

The I/O pins of the port 8 also serve as resource I/O pins, so when using a pin of port 8 as a resource I/O

pin, it cannot be used as a general-purpose I/O port. Table 8-31 shows the pins of port 8.

For the circuit type, see Section 1.7.

Table 8-31 Pins of Port 8

Port Function

(hysteresis)