SH7764 Datasheet, PDF (1393/1752 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC Engine Family SH-4A Series

Section 27 General Purpose I/O (GPIO)
Section 27 General Purpose I/O (GPIO)
27.1 Features
This LSI has ten general purpose I/O (GPIO) ports (A to J), which provide 77 input/output pins in
total.
The port pins are multiplexed with on-chip peripheral module pins, and their functions (GPIO or
on-chip peripheral module pins) can be selected.
The GPIO has the following features.
• Each port pin is a multiplexed pin, for which the pin function and pull-up MOS can be
controlled individually through the corresponding port control register.
• Each port has a data register that stores data for the pins.
• GPIO interrupts are supported (for ports A and B).
Tables 27.1 and 27.2 list the multiplexed pins controlled through the GPIO registers.
Rev. 1.00 Nov. 22, 2007 Page 1337 of 1692
REJ09B0360-0100