AT89LP216-20PI ATMEL [ATMEL Corporation], AT89LP216-20PI Datasheet - Page 88

• Manufacturer Part Number: AT89LP216-20PI
• Description: Microcontroller with 2K Bytes Flash
• Manufacturer: ATMEL [ATMEL Corporation]

Table of Contents (Continued)
ii
AT89LP216 [Preliminary]
12. Interrupts ................................................................................................ 18
13. I/O Ports .................................................................................................. 22
14. Enhanced Timer/Counters .................................................................... 27
15. External Interrupts ................................................................................. 36
16. General-purpose Interrupts .................................................................. 36
17. Serial Interface ....................................................................................... 38
18. Serial Peripheral Interface ..................................................................... 49
19. Analog Comparator ............................................................................... 55
20. Programmable Watchdog Timer ........................................................... 57
21. Instruction Set Summary ...................................................................... 59
22. On-Chip Debug System ......................................................................... 63
12.1 Interrupt Response Time ......................................................................................19
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
14.1 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
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
19.1 Comparator Interrupt with Debouncing .................................................................55
20.1 Software Reset .....................................................................................................58
22.1 Physical Interface .................................................................................................63
22.2 Software Breakpoints ............................................................................................64
22.3 Limitations of On-Chip Debug ...............................................................................64
3621A–MICRO–6/06