Fujitsu 8FX

MB95630H Series
MN702-00009-2v0-E FUJITSU SEMICONDUCTOR LIMITED 83
CHAPTER 6 I/O PORT
6.2 Configuration and Operations
6.2 Configuration and Operations
This section focuses on its configuration and operations as a general-purpose
I/O port.
For details of peripheral functions, see their respective chapters.
■ Configuration of I/O Port
An I/O port is made up of the following elements.
• General-purpose I/O pins/peripheral function I/O pins
• Port x data register (PDRx)
• Port x direction register (DDRx)
• Port x pull-up register (PULx)
• A/D input disable register (upper) (AIDRH)
• A/D input disable register (lower) (AIDRL)