Philips P89LPC908 Manuale Utente
Philips Semiconductors
User’s Manual - Preliminary -
P89LPC906/907/908
Table of Contents
2
Pin Configurations ..................................................................................... 7
Product comparison................................................................................... 8
Pin Descriptions - P89LPC906 ................................................................ 12
Pin Descriptions - P89LPC907 ................................................................ 13
Pin Descriptions - P89LPC908 ................................................................ 14
Special function registers ......................................................................... 15
Memory Organization .............................................................................. 24
Product comparison................................................................................... 8
Pin Descriptions - P89LPC906 ................................................................ 12
Pin Descriptions - P89LPC907 ................................................................ 13
Pin Descriptions - P89LPC908 ................................................................ 14
Special function registers ......................................................................... 15
Memory Organization .............................................................................. 24
Enhanced CPU ........................................................................................ 25
Clock Definitions ...................................................................................... 25
CPU Clock (OSCCLK) ............................................................................. 25
Low Speed Oscillator Option - P89LPC906............................................. 25
Medium Speed Oscillator Option - P89LPC906 ...................................... 25
High Speed Oscillator Option - P89LPC906............................................ 25
Oscillator Option Selection- P89LPC906................................................. 26
Clock Output - P89LPC906 ..................................................................... 26
On-Chip RC oscillator Option .................................................................. 26
If CCLK is 8MH or slower, the CLKLP SFR bit (AUXR1.7) can be set to ’1’ to re-
Clock Definitions ...................................................................................... 25
CPU Clock (OSCCLK) ............................................................................. 25
Low Speed Oscillator Option - P89LPC906............................................. 25
Medium Speed Oscillator Option - P89LPC906 ...................................... 25
High Speed Oscillator Option - P89LPC906............................................ 25
Oscillator Option Selection- P89LPC906................................................. 26
Clock Output - P89LPC906 ..................................................................... 26
On-Chip RC oscillator Option .................................................................. 26
If CCLK is 8MH or slower, the CLKLP SFR bit (AUXR1.7) can be set to ’1’ to re-
Watchdog Oscillator Option ..................................................................... 26
External Clock Input Option - P89LPC906 .............................................. 27
CPU Clock (CCLK) Wakeup Delay.......................................................... 27
CPU Clock (CCLK) Modification: DIVM Register..................................... 27
Low Power Select (P89LPC906) ........................................................... 28
External Clock Input Option - P89LPC906 .............................................. 27
CPU Clock (CCLK) Wakeup Delay.......................................................... 27
CPU Clock (CCLK) Modification: DIVM Register..................................... 27
Low Power Select (P89LPC906) ........................................................... 28
Interrupt Priority Structure........................................................................ 31
External Interrupt Inputs .......................................................................... 32
External Interrupt Pin Glitch Suppression................................................ 32
External Interrupt Inputs .......................................................................... 32
External Interrupt Pin Glitch Suppression................................................ 32
Port Configurations .................................................................................. 35
Quasi-Bidirectional Output Configuration ................................................ 35
Open Drain Output Configuration ............................................................ 36
Input-Only Configuration.......................................................................... 37
Push-Pull Output Configuration ............................................................... 37
Port 0 Analog Functions .......................................................................... 37
Quasi-Bidirectional Output Configuration ................................................ 35
Open Drain Output Configuration ............................................................ 36
Input-Only Configuration.......................................................................... 37
Push-Pull Output Configuration ............................................................... 37
Port 0 Analog Functions .......................................................................... 37
Mode 0..................................................................................................... 42
Mode 2..................................................................................................... 42
Mode 3..................................................................................................... 43
Mode 6 - P89LPC907 .............................................................................. 43
Timer Overflow toggle output - P89LPC907 ............................................ 45
Mode 2..................................................................................................... 42
Mode 3..................................................................................................... 43
Mode 6 - P89LPC907 .............................................................................. 43
Timer Overflow toggle output - P89LPC907 ............................................ 45