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User Manual - Subject to Change Philips Semiconductors P89LPC932 Table of Contents Table of Contents 1. General Description................................................................................... 9 Pin configuration...................................................................................................... Pin descriptions ....................................................................................................... Special Function Registers...................................................................................... Memory organization ............................................................................................... Data RAM arrangement................................................................................ 9 12 15 19 20 2. Clocks........................................................................................................ 21 Enhanced CPU........................................................................................................ Clocks...................................................................................................................... Clock definitions............................................................................................ Oscillator clock (OSCCLK) ........................................................................... Low speed oscillator option .......................................................................... Medium speed oscillator option .................................................................... High speed oscillator option.......................................................................... Clock output............................................................................................................. On-chip RC oscillator option.................................................................................... Watchdog oscillator option ...................................................................................... External clock input option....................................................................................... Oscillator Clock (OSCCLK) wakeup delay .............................................................. Low power select..................................................................................................... 21 21 21 21 21 21 21 21 22 22 22 23 24 3. Interrupts ................................................................................................... 25 Interrupt priority structure ........................................................................................ 25 External Interrupt inputs .......................................................................................... 26 External Interrupt pin glitch suppression ................................................................. 27 4. I/O Ports .................................................................................................... 29 Port configurations................................................................................................... Quasi-bidirectional output configuration .................................................................. Open drain output configuration .............................................................................. Input-only configuration ........................................................................................... Push-pull output configuration ................................................................................. Port 0 analog functions............................................................................................ Additional port features............................................................................................ 29 29 30 31 31 31 32 5. Power Monitoring Functions ...................................................................... 33 Brownout Detection ................................................................................................. 33 Power-on Detection ................................................................................................. 34 Power reduction modes........................................................................................... 34 6. Reset ......................................................................................................... 39 Reset vector ............................................................................................................ 40 7. Timers 0 and 1........................................................................................... 41 Mode 0..................................................................................................................... 42 Mode 1..................................................................................................................... 42 2003 Nov 6 2
