Rainbow-electronics AT89LP216 Bedienungsanleitung PDF herunterladen (Seite 88)

3621A–MICRO–6/06

AT89LP216 [Preliminary]

Table of Contents (Continued)

12. Interrupts ................................................................................................ 18

12.1 Interrupt Response Time ......................................................................................19

13. I/O Ports .................................................................................................. 22

13.1 Port Configuration .................................................................................................22

13.2 Port 1 Analog Functions .......................................................................................25

13.3 Port Read-Modify-Write ........................................................................................25

13.4 Port Alternate Functions .......................................................................................26

14. Enhanced Timer/Counters .................................................................... 27

14.1 Mode 0 – Variable Width Timer/Counter ..............................................................27

14.2 Mode 1 – 16-bit Auto-Reload Timer/Counter ........................................................28

14.3 Mode 2 – 8-bit Auto-Reload Timer/Counter ..........................................................29

14.4 Mode 3 – 8-bit Split Timer .....................................................................................29

14.5 Pulse Width Modulation ........................................................................................32

15. External Interrupts ................................................................................. 36

16. General-purpose Interrupts .................................................................. 36

17. Serial Interface ....................................................................................... 38

17.1 Multiprocessor Communications ...........................................................................38

17.2 Baud Rates ...........................................................................................................40

17.3 More About Mode 0 ..............................................................................................41

17.4 More About Mode 1 ..............................................................................................43

17.5 More About Modes 2 and 3 ..................................................................................45

17.6 Framing Error Detection .......................................................................................48

17.7 Automatic Address Recognition ............................................................................48

18. Serial Peripheral Interface ..................................................................... 49

19. Analog Comparator ............................................................................... 55

19.1 Comparator Interrupt with Debouncing .................................................................55

20. Programmable Watchdog Timer ........................................................... 57

20.1 Software Reset .....................................................................................................58

21. Instruction Set Summary ...................................................................... 59

22. On-Chip Debug System ......................................................................... 63

22.1 Physical Interface .................................................................................................63

22.2 Software Breakpoints ............................................................................................64

22.3 Limitations of On-Chip Debug ...............................................................................64

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Rainbow-electronics AT89LP216 Bedienungsanleitung Seite 88