B&K AVR101 Bedienungsanleitung Seite 1

8-bit Microcontrollers Application Note Rev. 8073B-AVR-09/07 AVR481: DB101 Hardware User's Guide Features • LCD module with RGB backl

Disclaimer Headquarters International Atmel Corporation 2325 Orchard Parkway San Jose, CA 95131 USA Tel: 1(408) 441-0311 Fax: 1(408) 487-2600

2 AVR481 2 Features overview The schematics, and layout files (gerber format) are available in separate files distributed with this application note.

AVR481 38073B-AVR-09/07 2.1 AVR microcontroller The LCD is controlled by an ATmega1281, which has 64 pins, 128kB of Flash memory and 8kB of SRAM. Th

4 AVR481 Figure 2-3. Jumper J306, controlling supply voltage of the DB101. It is possible to sense whether the mega1281 runs from external supply or

AVR481 2.6.1 Headers on 100mil grid All communication pin headers and IO connections along the edge of the board are placed on a 100-mil grid to make

6 AVR481 The dataflash is connected to the mega1281’s USART0, which can operate in SPI master mode. The USART0 SPI master communication uses port E,

AVR481 78073B-AVR-09/07 2.11 Hardware revision pins The AVR port pins PE7 and PE6 are used to sense the hardware revision of the DB101, or rather wh

8 AVR481 8073B-AVR-09/07 Quantity MPN/ brief Manufacturer Description Designator 4 100R Thick film resistor, SMD 0603, 1/10W, 1% R123, R122, R

AVR481 98073B-AVR-09/07 Quantity MPN/ brief Manufacturer Description Designator 1 AT45DB161D-SU ATMEL® 16-megabit 2.7-3.6 volt DataFlash U100 1