Datasheet

CONTROL

BLOCK

INTERRUPT

CONTROL

BLOCK

GIOx[7:0] port

Host Interface

GIO Module

Interrupt Requests

To Interrupt Manager

Overview

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25.1 Overview

The GIO module offers general-purpose input and output capability. It supports up to eight 8-bit ports for a

total of up to 64 GIO terminals. Each of these 64 terminals can be independently configured as input or

output and configured as required by the application. The GIO module also supports generation of

interrupts whenever a rising edge or falling edge or any toggle is detected on up to 32 of these GIO

terminals. Refer to the device datasheet for identifying the number of GIO ports supported and the GIO

terminals capable of generating an interrupt.

Figure 25-1. GIO Block Diagram

The main features of the GIO module are summarized as follows:

• Allows each GIO terminal to be configured for general-purpose input or output functions

• Supports programmable pull directions on each input GIO terminal

• Supports GIO output in push/pull or open-drain modes

• Allows up to 32 GIO terminals to be used for generating interrupt requests

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General-Purpose Input/Output (GIO) Module SPNU562–May 2014

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