00319nam a2200121Ia 4500008004100000100001900041245007000060250000800130260002100138260000900159300000800168650002100176221231s9999    xx            000 0 und d  aAyala, Kenneth 0a8051 Microcontroller  Architecture  Programming and Application  a2nd  bThomson Learning  c2005  a368  aComputer Science