ATAVRDISPLAYX Atmel, ATAVRDISPLAYX Datasheet - Page 129
ATAVRDISPLAYX
Manufacturer Part Number
ATAVRDISPLAYX
Description
KIT EVAL XMEGA DISPLAY
Manufacturer
Atmel
Specifications of ATAVRDISPLAYX
Main Purpose
*
Embedded
*
Utilized Ic / Part
*
Primary Attributes
*
Secondary Attributes
*
Silicon Manufacturer
Atmel
Silicon Family Name
ATxmega
Kit Contents
Board
Features
Temperature Sensor, Mono Speaker Via Audio Amplifier
Svhc
No SVHC (15-Dec-2010)
Core Architecture
AVR
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
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Part Number
Manufacturer
Quantity
Price
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ATAVRDISPLAYX
Manufacturer:
Atmel
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13. I/O Ports
13.1
13.2
8077H–AVR–12/09
Features
Overview
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XMEGA has flexible General Purpose I/O (GPIO) Ports. A port consists of up to 8 pins ranging
from pin 0 to 7, where each pin can be configured as input or output with highly configurable
driver and pull settings. The ports also implement several functions including interrupts, synchro-
nous/asynchronous input sensing and asynchronous wake-up signalling.
All functions are individual per pin, but several pins may be configured in a single operation. All
ports have true Read-Modify-Write (RMW) functionality when used as general purpose I/O ports.
The direction of one port pin can be changed without unintentionally changing the direction of
any other pin. The same applies when changing drive value when configured as output, or
enabling/disabling of pull-up or pull-down resistors when configured as input.
Figure 13-1 on page 130
controlling a pin.
Selectable input and output configuration for each pin individually
Flexible pin configuration through dedicated Pin Configuration Register
Synchronous and/or asynchronous input sensing with port interrupts and events
Asynchronous wake-up signalling
Highly configurable output driver and pull settings:
Slew rate control
Flexible pin masking
Configuration of multiple pins in a single operation
Read-Modify-Write (RMW) support
Toggle/clear/set registers for OUT and DIR registers
Clock output on port pin
Event Channel 0 output on port pin 7
Mapping of port registers (virtual ports) into bit accessible I/O memory space
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Totem-pole
Pull-up/-down
Wired-AND
Wired-OR
Bus keeper
Inverted I/O
shows the I/O pin functionality, and the registers that is available for
XMEGA A
129
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