SH7763 Datasheet, PDF (1745/2026 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC Engine Family SH-4A Series

Section 40 General Purpose I/O (GPIO)
Section 40 General Purpose I/O (GPIO)
40.1 Features
This LSI has 16 general ports (A to P), which provide 118 input/output pins in total.
Each of the general port pins is multiplexed with the pins of peripheral modules, and its function is
selected as either a General Purpose I/O (GPIO) pin or a peripheral module pin.
The GPIO has the following features.
• Each port pin is a multiplexed pin, for which the port control register can set the pin function
and MOS pull-up control individually.
• Each port has a data register that stores data for its pins.
• GPIO interrupts are supported.
Table 40.1 lists the multiplexed pins controlled by the GPIO registers.
Each port pin is pulled up in the initial state. When using peripheral modules, the relevant pins
should be released from the pulled up state for use.
Rev. 1.00 Oct. 01, 2007 Page 1679 of 1956
REJ09B0256-0100