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 |  | AVR242: Multiplexing LED Drive & a 4x4 Keypad on tinyAVR and megaAVR devices (26 pages, revision B, updated 5/02) This Application Note describes a comprehensive system providing a 4 x 4 keypad as input into a real time clock/timer with two outputs and controls external loads and a four digit mulitplexed LED display.
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 | | AVR074: Upgrading AT90ICEPRO to ICE10 (8 pages, revision B, updated 5/02) This Application Note describes how to upgrade the AT90ICEPRO emulator to ATICE10 Version 2.0 |
 | | AVR604: Understanding the AVR ICEPRO I/O Registers (9 pages, revision A, updated 4/98) This Application Note describes the I/O Register views seen in AVR Studio when using the ICEPRO emulator. |
 | | AVR072: Accessing 16-bit I/O Registers (4 pages, revision B, updated 5/02) This Application Note shows how to read and write the 16-bit registers in the AVR Microcontrollers. Since the AVR has an 8-bit I/O bus these registers must be written in two execution cycles. It explains how to safely read and write these 16-bit registers. |
 |  | AVR128: Using the Analog Comparator on tinyAVR and megaAVR devices (4 pages, revision B, updated 5/02) This Application Note serves as an example on how to set up and use the AVR's on-chip Analog Comparator. |
 |  | AVR240: 4x4 Keypad-Wake Up on Keypress on tinyAVR and megaAVR devices (14 pages, revision D, updated 6/06) This Application Note describes a simple interface to a 4 x 4 keypad designed for low power battery operation. |