Datasheet

 2018 Microchip Technology Inc. Data Sheet Complete DS40002058A-page 4
ATxmega128A1U/ATxmega64A1U
8.1 Features .......................................................................................................... 23
8.2 Overview.......................................................................................................... 23
9 Event System .......................................................................................... 24
9.1 Features .......................................................................................................... 24
9.2 Overview.......................................................................................................... 24
10 System Clock and Clock options ......................................................... 25
10.1 Features .......................................................................................................... 25
10.2 Overview.......................................................................................................... 25
10.3 Clock Sources ................................................................................................. 26
11 Power Management and Sleep Modes ................................................. 28
11.1 Features .......................................................................................................... 28
11.2 Overview.......................................................................................................... 28
11.3 Sleep Modes.................................................................................................... 28
12 System Control and Reset .................................................................... 30
12.1 Features .......................................................................................................... 30
12.2 Overview.......................................................................................................... 30
12.3 Reset Sequence .............................................................................................. 30
12.4 Reset Sources ................................................................................................. 30
13 WDT – Watchdog Timer ......................................................................... 32
13.1 Features .......................................................................................................... 32
13.2 Overview.......................................................................................................... 32
14 Interrupts and Programmable Multilevel Interrupt Controller ........... 33
14.1 Features .......................................................................................................... 33
14.2 Overview.......................................................................................................... 33
14.3 Interrupt vectors............................................................................................... 33
15 I/O Ports .................................................................................................. 36
15.1 Features .......................................................................................................... 36
15.2 Overview.......................................................................................................... 36
15.3 Output Driver ................................................................................................... 37
15.4 Input sensing ................................................................................................... 39
15.5 Alternate Port Functions .................................................................................. 39
16 TC0/1 – 16-bit Timer/Counter Type 0 and 1 ......................................... 40
16.1 Features .......................................................................................................... 40
16.2 Overview.......................................................................................................... 40