AT89LP4052 datasheet(90/93 Pages) ATMEL

90 / 93 page

3547I–MICRO–6/08

AT89LP2052/LP4052

Table of Contents (Continued)

12. Reset ....................................................................................................... 13

12.1Power-on Reset .....................................................................................................13

12.2Brown-out Reset ....................................................................................................13

12.3External Reset .......................................................................................................13

12.4Watchdog Reset ....................................................................................................13

13. Power Saving Modes ............................................................................. 13

13.1Idle Mode ...............................................................................................................14

13.2Power-down Mode ................................................................................................14

14. Interrupts ................................................................................................ 15

14.1Interrupt Response Time .......................................................................................16

15. I/O Ports .................................................................................................. 19

15.1Quasi-bidirectional Output .....................................................................................19

15.2Input-only Mode .....................................................................................................20

15.3Open-drain Output .................................................................................................21

15.4Push-pull Output ....................................................................................................21

15.5Port 1 Analog Functions ........................................................................................21

15.6Port Read-Modify-Write .........................................................................................22

15.7Port Alternate Functions ........................................................................................22

16. Enhanced Timer/Counters .................................................................... 23

16.1Mode 0 ..................................................................................................................23

16.2Mode 1 ..................................................................................................................24

16.3Mode 2 ..................................................................................................................25

16.4Mode 3 ..................................................................................................................25

16.5Pulse Width Modulation .........................................................................................28

16.6Timer/Counter Pin Configuration ...........................................................................29

17. External Interrupts ................................................................................. 29

AT89LP4052 Datasheet(PDF) 90 Page - ATMEL Corporation