Port 0 - Fujitsu MB90420/5 (A) Series Hardware Manual

F2mc-16lx family 16-bit microcontrollers

Table of Contents

MB90420/5 (A) SERIES F

8.3 Port 0

Port 0 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. Port 0 is

a general-purpose I/O port is mainly explained here. The configuration, pins, block diagram of the pins, and

registers for port 0 are shown below.

n Configuration of port 0

Port 0 consists of the following three elements:

• General-purpose I/O pins, resource I/O pins (P00/SIN0/INT4 to P07/PPG1)

• Port 0 data register (PDR0)

• Port 0 direction register (DDR0)

n Pins of port 0

The pins of the port 0 also serve as resource I/O pins, so when using a pin of port 0 as a resource I/O pin, it

cannot be used as a general-purpose I/O port. Table 8-3 shows the pins of port 0.

P00/SIN0/INT4

P01/SOT0/INT5

P02/SCK0/INT6

P03/SIN1/INT7

For the circuit type, see Section 1.7.

MC-16LX FAMILY 16-BIT MICROCONTROLLERS HARDWARE MANUAL

Table 8-3 Pins of Port 0

Port Function

(hysteresis)