Light Therapy Device User Manual

Philips Semiconductors
User’s Manual - Preliminary -
P89LPC901/902/903
Table of Contents
2003 Dec 8 4
Feed Sequence ....................................................................................... 84
Watchdog Timer in Timer Mode .............................................................. 87
Power down operation ............................................................................. 87
Watchdog Clock Source .......................................................................... 87
Periodic wakeup from Power down without an external oscillator ........... 89
13. Additional Features............................................................................. 91
Software Reset ........................................................................................ 91
Dual Data Pointers................................................................................... 91
14. Flash program memory ...................................................................... 93
General description.................................................................................. 93
Features................................................................................................... 93
Introduction to IAP-Lite ............................................................................ 93
Using Flash as data storage .................................................................... 93
Accessing additional flash elements........................................................ 96
Erase-programming additional flash elements ........................................ 97
Reading additional flash elements........................................................... 97
User Configuration Bytes......................................................................... 99
User Security Bytes ............................................................................... 101
Boot Vector............................................................................................ 102
Boot Status ............................................................................................ 102
15. Instruction set ................................................................................... 103
16. Revision History................................................................................ 107
17. Index................................................................................................. 109