AT91RM3400-DK Atmel, AT91RM3400-DK Datasheet - Page 203
![KIT DEV FOR AT91RM3400](/photos/9/21/92145/at91rm3400-dk__bottom__sml.jpg)
AT91RM3400-DK
Manufacturer Part Number
AT91RM3400-DK
Description
KIT DEV FOR AT91RM3400
Manufacturer
Atmel
Series
AT91SAM Smart ARMr
Type
MCUr
Datasheets
1.AT91RM3400-DK.pdf
(461 pages)
2.AT91RM3400-DK.pdf
(2 pages)
3.AT91RM3400-DK.pdf
(25 pages)
Specifications of AT91RM3400-DK
Contents
Evaluation Board, Software and Documentation
Processor To Be Evaluated
AT91RM3400
Data Bus Width
32 bit
Interface Type
RS-232, USB
For Use With/related Products
AT91RM3400
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
- Current page: 203 of 461
- Download datasheet (6Mb)
Parallel Input/Output Controller (PIO)
Overview
1790A–ATARM–11/03
The Parallel Input/Output Controller (PIO) manages up to 32 fully programmable input/output
lines. Each I/O line may be dedicated as a general-purpose I/O or be assigned to a function of
an embedded peripheral. This assures effective optimization of the pins of a product.
Each I/O line is associated with a bit number in all of the 32-bit registers of the 32-bit wide
User Interface.
Each I/O line of the PIO Controller features:
•
•
•
•
•
The PIO Controller also features a synchronous output providing up to 32 bits of data output in
a single write operation.
Important features of the PIO also include:
•
•
•
•
•
An input change interrupt enabling level change on any I/O line.
A glitch filter providing rejection of pulses lower than one-half of clock cycle.
Multi-drive capability similar to an open drain I/O line.
Control of the the pull-up of the I/O line.
Input visibility and output control.
Up to 32 Programmable I/O Lines
Fully Programmable through Set/Clear Registers
Multiplexing of Two Peripheral Functions per I/O Line
For each I/O Line (Whether Assigned to a Peripheral or Used as General Purpose I/O)
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–
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–
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Synchronous Output, Provides Set and Clear of Several I/O lines in a Single Write
Input Change Interrupt
Glitch Filter
Multi-drive Option Enables Driving in Open Drain
Programmable Pull Up on Each I/O Line
Pin Data Status Register, Supplies Visibility of the Level on the Pin at Any Time
AT91RM3400
203
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