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Atmel will publicly announce that it is adding an LCD controller to the popular AVR® XMEGA™ microcontroller (MCU) family. The integration of an LCD controller reduces design complexity and lowers overall system cost, while providing ultra-low power consumption for applications including utility metering, home automation, climate control, industrial control, sports equipment, toys, eTokens, medical equipment, power tools, fire alarm systems, and other systems that require a user interface.

 

The LCD controller in the AVR XMEGA B microcontrollers supports up to 4x40 segments on the 100-pin B1 devices and up to 4x25 segments on the 64-pin B3 devices. If you do not need all the LCD segments in your application, up to 16 of the LCD pins can be used as general purpose I/O (GPIO) pins.

 

The ultra-low power LCD driver needs only 3µA to run the LCD display and has several power-reducing features, such as built-in contrast control, ASCII character mapping, programmable segment blinking, SWAP mode, integrated LCD buffers, an integrated LCD power supply (independent from the supply voltage), and support for scrolling text. In addition to the integrated LCD controller, the AVR XMEGA B devices also feature a full-speed USB device with operation from an internal oscillator, dual 12-bit ADC, DMA controller, event system, picoPower® technology, and, of course, the AVR single-cycle CPU.

 

 

 

Key Features ofAVR XMEGA B

 

ASCII character mapping makes it easier for software developers to output characters to their display without having detailed knowledge of the system hardware or big look-up tables. It reduces code size and the time needed to update your LCD, simplifies source code, and reduces the time spent in active mode. In the example below, seven ASCII letters are outputted to a 16-segment LCD display with and without ASCII character mapping. Doing it manually takes more than 30 times longer than using the ASCII character mapping available on all XMEGA LCD microcontrollers.

 

 

 

 

Programmable segment blinking allows segment blinking with individually selectable blink rates in hardware, without any interrupts or software execution. This even works in deep-sleep mode and reduces interrupt and wake-up frequency by more than 99%. This capability is perfect for clocks, alarms or anything where you want some type of dynamic indicator.

 

SWAP mode simplifies hardware design. The LCD communications and segment lines can be internally re-routed to different pins, adding flexibility to hardware design of LCD applications.

 

 

 

 

 

Atmel AVR XMEGA B Tool Support

 

Atmel AVR Studio® 5 and AVR Software Framework support the new AVR XMEGA B devices. The part pack that upgrades the complete AVR software and hardware toolchain to support these devices will be available from: www.atmel.no/beta_ware

The Atmel AVR STK600 starter kit supports these new AVR XMEGA devices with the following add-on boards:

  • 64-pin AVR XMEGA B3 devices with USB in TQFP package, requires a ATSTK600-TQFP64 socket board and the ATSTK600-RC52 routing card
  • 100-pin AVR XMEGA B1 devices with USB in TQFP package, requires a ATSTK600-TQFP100 socket board and the ATSTK600-RC50 routing card
  • Adding an LCD panel to the STK600 requires the ATSTK600-LCD160 extension board. This board supports both the AVR XMEGA B1 and B3 devices.

 

Atmel Kits are available at Ineltek Web-Shop,

http://www.ineltek.com/shop/index.php?cat=c52_Starter-Kit.html

 

 

For more information about the Atmel® AVR XMEGA B series, please click the following link:

http://www.atmel.com/dyn/products/devices.asp?category_id=163&family_id=607&subfamily_id=1965&source=redirect

 

We would be pleased to receive your inquiry under: info@ineltek.com

Or contact an Ineltek location within your area.

 

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