Page 2 - Table of Contents
Philips Semiconductors User’s Manual - Preliminary - P89LPC901/902/903 Table of Contents 2003 Dec 8 2 Table of Contents 1. General Description ................................................................................ 7 Pin Configurations ..........................................................
Page 5 - List of Figures
Philips Semiconductors User’s Manual - Preliminary - P89LPC901/902/903 List of Figures 2003 Dec 8 5 List of Figures P89LPC901/902/903 Memory Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25Using the Crystal Oscillator - P89LPC901 . . . . . . . . . . . . . . ...
Page 7 - GENERAL DESCRIPTION; Pin Configurations
Philips Semiconductors User’s Manual - Preliminary - P89LPC901/902/903 GENERAL DESCRIPTION 2003 Dec 8 7 1. GENERAL DESCRIPTION The P89LPC901/902/903 is a single-chip microcontroller designed for applications demanding high-integration, low cost solutions over a wide range of performance requirements...
Page 8 - Logic Symbols; Product comparison
Philips Semiconductors User’s Manual - Preliminary - P89LPC901/902/903 GENERAL DESCRIPTION 2003 Dec 8 8 Logic Symbols Product comparison The following table highlights differences between these three devices. Part number Ext crystal pins X2 clkout T0 PWM output CMP1 input CMP2 input CMP Ref Input CM...
Page 9 - Internal Bus; High Performance
Philips Semiconductors User’s Manual - Preliminary - P89LPC901/902/903 GENERAL DESCRIPTION 2003 Dec 8 9 Block Diagram - P89LPC901 Port 0 Configurable I/Os 128 byte Data RAM 1KB Code Flash Internal Bus Timer0Timer1 Keypad Interrupt Power Monitor (Power-On Reset, Brownout Reset) Configurable Oscillato...
Page 12 - MNEMONIC PIN NO. TYPE NAME AND FUNCTION; CMPREF; RST
Philips Semiconductors User’s Manual - Preliminary - P89LPC901/902/903 GENERAL DESCRIPTION 2003 Dec 8 12 PIN DESCRIPTIONS - P89LPC901 MNEMONIC PIN NO. TYPE NAME AND FUNCTION P0.0 - P0.6 6, 7 I/O Port 0: Port 0 is an I/O port with a user-configurable output types. During reset Port 0 latches are conf...
Page 13 - XTAL2; CLKOUT
Philips Semiconductors User’s Manual - Preliminary - P89LPC901/902/903 GENERAL DESCRIPTION 2003 Dec 8 13 O XTAL2 Output from the oscillator amplifier (when a crystal oscillator option is selected via the FLASH configuration). O CLKOUT CPU clock divided by 2 when enabled via SFR bit (ENCLK - TRIM.6)....
Page 16 - SPECIAL FUNCTION REGISTERS; Special Function Registers Table - P89LPC901
Philips Semiconductors User’s Manual - Preliminary - P89LPC901/902/903 GENERAL DESCRIPTION 2003 Dec 8 16 SPECIAL FUNCTION REGISTERS Note: Special Function Registers (SFRs) accesses are restricted in the following ways: 1. User must NOT attempt to access any SFR locations not defined.2. Accesses to a...
Page 19 - Special Function Registers Table - P89LPC902
Philips Semiconductors User’s Manual - Preliminary - P89LPC901/902/903 GENERAL DESCRIPTION 2003 Dec 8 19 Special Function Registers Table - P89LPC902 Name Description SFR Address Bit Functions and Addresses Reset Value MSB LSB Hex Binary E7 E6 E5 E4 E3 E2 E1 E0 ACC* Accumulator E0H 00H 00000000 AUXR...
Page 22 - Special Function Registers Table - P89LPC903
Philips Semiconductors User’s Manual - Preliminary - P89LPC901/902/903 GENERAL DESCRIPTION 2003 Dec 8 22 Special Function Registers Table - P89LPC903 Name Description SFR Address Bit Functions and Addresses Reset Value MSB LSB Hex Binary E7 E6 E5 E4 E3 E2 E1 E0 ACC* Accumulator E0H 00H 00000000 AUXR...
Page 25 - Memory Organization; KB Flash Code; Sector 0; Data Memory; Special Function; FFh; DATA
Philips Semiconductors User’s Manual - Preliminary - P89LPC901/902/903 GENERAL DESCRIPTION 2003 Dec 8 25 Memory Organization The P89LPC901/902/903 memory map is shown in Figure 1-1. Figure 1-1: P89LPC901/902/903 Memory Map The various P89LPC901/902/903 memory spaces are as follows: DATA 128 bytes of...
Page 27 - CLOCKS; Enhanced CPU; Note; Low Speed Oscillator Option - P89LPC901
Philips Semiconductors User’s Manual - Preliminary - P89LPC901/902/903 CLOCKS 2003 Dec 8 27 2. CLOCKS Enhanced CPU The P89LPC901/902/903 uses an enhanced 80C51 CPU which runs at 6 times the speed of standard 80C51 devices. A machine cycle consists of two CPU clock cycles, and most instructions execu...
Page 28 - Oscillator Option Selection- P89LPC901; On-Chip RC oscillator Option
Philips Semiconductors User’s Manual - Preliminary - P89LPC901/902/903 CLOCKS 2003 Dec 8 28 Figure 2-1: Using the Crystal Oscillator - P89LPC901 Oscillator Option Selection- P89LPC901 The oscillator option is selectable either by the FOSC2:0 bits in UCFG1 or by the RTCS1:0 bits in RTCCON. If the FOS...
Page 29 - Watchdog Oscillator Option; TRIM
Philips Semiconductors User’s Manual - Preliminary - P89LPC901/902/903 CLOCKS 2003 Dec 8 29 If CCLK is 8MHz or slower, the CLKLP SFR bit (AUXR1.7) can be set to ’1’ to reduce power consumption. On reset, CLKLP is ’0’ allowing highest performance access. This bit can then be set in software if CCLK i...
Page 30 - DIVM
Philips Semiconductors User’s Manual - Preliminary - P89LPC901/902/903 CLOCKS 2003 Dec 8 30 . Figure 2-3: Block Diagram of Oscillator Control - P89LPC901 RTC CPU High freq. Med freq. Low freq. Watchdog Oscillator RC Oscillator XTAL1 XTAL2 /2 DIVM WDT (7.3728MHz) (400KHz) CCLK PCLK Timer 0 & 1 OS...
Page 35 - INTERRUPTS; Interrupt Priority Structure; Priority Bits
Philips Semiconductors User’s Manual - Preliminary - P89LPC901/902/903 INTERRUPTS 2003 Dec 8 35 3. INTERRUPTS The P89LPC901/902/903 use a four priority level interrupt structure. This allows great flexibility in controlling the handling of the many interrupt sources. The P89LPC901 supports 6 interru...
Page 37 - External Interrupt Inputs
Philips Semiconductors User’s Manual - Preliminary - P89LPC901/902/903 INTERRUPTS 2003 Dec 8 37 External Interrupt Inputs The P89LPC901/902/903 have a Keypad Interrupt function (see Keypad Interrupt (KBI) on page 79). This can be used as an external interrupt input. If enabled when the P89LPC901/902...
Page 39 - Port Configurations; Table 4-2: Port Output Configuration Settings; Quasi-Bidirectional Output Configuration; Clock Source
Philips Semiconductors User’s Manual - Preliminary - P89LPC901/902/903 I/O PORTS 2003 Dec 8 39 4. I/O PORTS The P89LPC901/902/903 has between 3 and 6 I/O pins. The exact number of I/O pins available depends on the clock and reset options chosen: Table 4-1: Number of I/O Pins Available Port Configura...
Page 40 - Open Drain Output Configuration
Philips Semiconductors User’s Manual - Preliminary - P89LPC901/902/903 I/O PORTS 2003 Dec 8 40 The third pullup is referred to as the "strong" pullup. This pullup is used to speed up low-to-high transitions on a quasi-bidirectional port pin when the port latch changes from a logic 0 to a log...
Page 41 - Input-Only Configuration
Philips Semiconductors User’s Manual - Preliminary - P89LPC901/902/903 I/O PORTS 2003 Dec 8 41 Input-Only Configuration The input port configuration is shown in Figure 4-3. It is a Schmitt-triggered input that also has a glitch suppression circuit. (Please refer to the P89LPC901/902/903 datasheet, A...
Page 42 - Additional Port Features
Philips Semiconductors User’s Manual - Preliminary - P89LPC901/902/903 I/O PORTS 2003 Dec 8 42 Table 4-3: Port Output Configuration - P89LPC901 Table 4-4: Port Output Configuration - P89LPC902 Table 4-5: Port Output Configuration - P89LPC903 Additional Port Features After power-up, all pins are in I...
Page 45 - TIMERS 0 AND 1; TMOD
Philips Semiconductors User’s Manual - Preliminary - P89LPC901/902/903 TIMERS 0 AND 1 2003 Dec 8 45 5. TIMERS 0 AND 1 The P89LPC901/902/903 has two general-purpose counter/timers which are similar to the 80C51 Timer 0 and Timer 1. Timer 0 of the P89LPC901 can be configured to operate either as a tim...
Page 46 - BIT
Philips Semiconductors User’s Manual - Preliminary - P89LPC901/902/903 TIMERS 0 AND 1 2003 Dec 8 46 Figure 5-2: Timer/Counter Auxiliary Mode Control register (TAMOD) Mode 0 Putting either Timer into Mode 0 makes it look like an 8048 Timer, which is an 8-bit Counter with a divide-by-32 prescaler. Fig...
Page 47 - TCON
Philips Semiconductors User’s Manual - Preliminary - P89LPC901/902/903 TIMERS 0 AND 1 2003 Dec 8 47 Mode 3 When Timer 1 is in Mode 3 it is stopped. The effect is the same as setting TR1 = 0. Timer 0 in Mode 3 establishes TL0 and TH0 as two separate 8-bit counters. The logic for Mode 3 on Timer 0 is ...
Page 49 - Timer Overflow toggle output - P89LPC901
Philips Semiconductors User’s Manual - Preliminary - P89LPC901/902/903 TIMERS 0 AND 1 2003 Dec 8 49 Figure 5-7: Timer/Counter 0 Mode 3 (two 8-bit counters) Figure 5-8: Timer/Counter 0 in Mode 6 (PWM auto-reload), P89LPC901. Timer Overflow toggle output - P89LPC901 Timer 0 can be configured to automa...
Page 51 - Real-time Clock Source; 3 -b it d o w n c o u n te r; -b it p re s c a le r; L S B; R e lo a d o n u n d e rflo w
Philips Semiconductors User’s Manual - Preliminary - P89LPC901/902/903 REAL-TIME CLOCK/SYSTEM TIMER 2003 Dec 8 51 6. REAL-TIME CLOCK/SYSTEM TIMER The P89LPC901/902/903 has a simple Real-time clock/system timer that allows a user to continue running an accurate timer while the rest of the device is p...
Page 52 - CCLK Frequency
Philips Semiconductors User’s Manual - Preliminary - P89LPC901/902/903 REAL-TIME CLOCK/SYSTEM TIMER 2003 Dec 8 52 Table 6-1: Real-time Clock/System Timer Clock Source - P89LPC901 FOSC2 (UCFG1.2) FOSC1 (UCFG1.1) FOSC0 (UCFG1.0) RTCS1:0 CCLK Frequency RTC Clock Frequency 0 0 0 00 High frequency crysta...
Page 53 - Reset Sources Affecting the Real-time Clock
Philips Semiconductors User’s Manual - Preliminary - P89LPC901/902/903 REAL-TIME CLOCK/SYSTEM TIMER 2003 Dec 8 53 Table 6-2: :Real-time Clock/System Timer Clock Source - P89LPC902/903 Changing RTCS1-0 RTCS1-0 cannot be changed if the RTC is currently enabled (RTCCON.0 =1). Setting RTCEN and updating...
Page 54 - RTCCON
Philips Semiconductors User’s Manual - Preliminary - P89LPC901/902/903 REAL-TIME CLOCK/SYSTEM TIMER 2003 Dec 8 54 Figure 6-2: RTCCON Register RTCCON Address: D1h Not bit addressableReset Source(s): Power-up onlyReset Value: 011xxx00B BIT SYMBOL FUNCTION RTCCON.7 RTCF Real-time Clock Flag. This bit i...
Page 55 - POWER MONITORING FUNCTIONS; Brownout Detection
Philips Semiconductors User’s Manual - Preliminary - P89LPC901/902/903 POWER MONITORING FUNCTIONS 2003 Dec 8 55 7. POWER MONITORING FUNCTIONS The P89LPC901/902/903 incorporates power monitoring functions designed to prevent incorrect operation during initial power- on and power loss or reduction dur...
Page 57 - Power Reduction Modes
Philips Semiconductors User’s Manual - Preliminary - P89LPC901/902/903 POWER MONITORING FUNCTIONS 2003 Dec 8 57 Power Reduction Modes The P89LPC901/902/903 supports three different power reduction modes as determined by SFR bits PCON.1-0 (see Table 7-2): PMOD1 (PCON.1) PMOD0 (PCON.0) Description 0 0...
Page 58 - PCON
Philips Semiconductors User’s Manual - Preliminary - P89LPC901/902/903 POWER MONITORING FUNCTIONS 2003 Dec 8 58 Figure 7-1: Power Control Register (PCON) PCON Address: 87h Not bit addressableReset Source(s): Any resetReset Value: 00000000B BIT SYMBOL FUNCTION PCON.7 SMOD1 Double Baud Rate bit for th...
Page 59 - PCONA
Philips Semiconductors User’s Manual - Preliminary - P89LPC901/902/903 POWER MONITORING FUNCTIONS 2003 Dec 8 59 Figure 7-2: Power Control Register (PCONA) PCONA Address: B5H Not bit addressableReset Source(s): Any resetReset Value: 00000000B BIT SYMBOL FUNCTION PCONA.7 RTCPD Real-time Clock Power do...
Page 62 - SFR Space
Philips Semiconductors User’s Manual - Preliminary - P89LPC901/902/903 UART (P89LPC903) 2003 Dec 8 62 SFR Space The UART SFRs are at the following locations: Table 8-1: SFR Locations for UARTs Baud Rate Generator and Selection The P89LPC903 enhanced UART has an independent Baud Rate Generator. The b...
Page 63 - Framing Error; BRGCON
Philips Semiconductors User’s Manual - Preliminary - P89LPC901/902/903 UART (P89LPC903) 2003 Dec 8 63 Figure 8-1: BRGCON Register Figure 8-2: Baud Rate Generations for UART (Modes 1, 3) Framing Error A Framing error occurs when the stop bit is sensed as a logic ’0’. A Framing error is reported in th...
Page 64 - SCON
Philips Semiconductors User’s Manual - Preliminary - P89LPC901/902/903 UART (P89LPC903) 2003 Dec 8 64 . Figure 8-3: Serial Port Control Register (SCON) SCON Address: 98h Bit addressableReset Source(s): Any resetReset Value: 00000000B BIT SYMBOL FUNCTION SCON.7 SM0/FE The use of this bit is determine...
Page 65 - More About UART Mode 0; SSTAT
Philips Semiconductors User’s Manual - Preliminary - P89LPC901/902/903 UART (P89LPC903) 2003 Dec 8 65 Figure 8-4: Serial Port Status Register (SSTAT) More About UART Mode 0 In Mode 0, a write to SBUF will initiate a transmission. At the end of the transmission, TI (SCON.1) is set, which must be clea...
Page 66 - More About UART Mode 1
Philips Semiconductors User’s Manual - Preliminary - P89LPC901/902/903 UART (P89LPC903) 2003 Dec 8 66 Figure 8-5: Serial Port Mode 0 (Double Buffering Must Be Disabled) More About UART Mode 1 Reception is initiated by detecting a 1-to-0 transition on RxD. RxD is sampled at a rate 16 times the progra...
Page 67 - More About UART Modes 2 and 3
Philips Semiconductors User’s Manual - Preliminary - P89LPC901/902/903 UART (P89LPC903) 2003 Dec 8 67 More About UART Modes 2 and 3 Reception is the same as in Mode 1. The signal to load SBUF and RB8, and to set RI, will be generated if, and only if, the following conditions are met at the time the ...
Page 68 - Double Buffering
Philips Semiconductors User’s Manual - Preliminary - P89LPC901/902/903 UART (P89LPC903) 2003 Dec 8 68 Double Buffering The UART has a transmit double buffer that allows buffering of the next character to be written to SBUF while the first character is being transmitted. Double buffering allows trans...
Page 69 - Figure 8-8: Transmission with and without Double Buffering
Philips Semiconductors User’s Manual - Preliminary - P89LPC901/902/903 UART (P89LPC903) 2003 Dec 8 69 Figure 8-8: Transmission with and without Double Buffering The 9th Bit (Bit 8) in Double Buffering (Modes 1, 2 and 3) If double buffering is disabled (DBMOD, i.e. SSTAT.7 = 0), TB8 can be written be...
Page 70 - Multiprocessor Communications; Automatic Address Recognition
Philips Semiconductors User’s Manual - Preliminary - P89LPC901/902/903 UART (P89LPC903) 2003 Dec 8 70 - If DBISEL is ’1’ and INTLO is ’1’, a Tx interrupt will occur at the end of the STOP bit of the data currently in the shifter (which is also the last data). 7. If there is more data, the CPU writes...
Page 73 - RESET; Power-On reset code execution
Philips Semiconductors User’s Manual - Preliminary - P89LPC901/902/903 RESET 2003 Dec 8 73 9. RESET The P1.5/RST pin can function as either an active low reset input or as a digital input, P1.5. The RPE (Reset Pin Enable) bit in UCFG1, when set to 1, enables the external reset input function on P1.5...
Page 74 - RSTSRC
Philips Semiconductors User’s Manual - Preliminary - P89LPC901/902/903 RESET 2003 Dec 8 74 Figure 9-2: Reset Sources Register RSTSRC Address: DFH Not bit addressableReset Sources: Power-on onlyReset Value: xx110000B (This is the power-on reset value. Other reset sources will set corresponding bits.)...
Page 75 - ANALOG COMPARATORS; Comparator Configuration; CMPn
Philips Semiconductors User’s Manual - Preliminary - P89LPC901/902/903 ANALOG COMPARATORS 2003 Dec 8 75 10. ANALOG COMPARATORS One analog comparator is provided on the P89LPC901 and two analog comparators are provided on both the P89LPC902 and P89LPC903 . Comparator operation is such that the output...
Page 76 - Figure 10-2: Comparator Input and Output Connections - P89LPC901
Philips Semiconductors User’s Manual - Preliminary - P89LPC901/902/903 ANALOG COMPARATORS 2003 Dec 8 76 Figure 10-2: Comparator Input and Output Connections - P89LPC901 Figure 10-3: Comparator Input and Output Connections - P89LPC902 + - CIN1A Comparator (P0.5) CMPREF Vref CN1 Change Detect CMF1 Int...
Page 77 - Figure 10-4: Comparator Input and Output Connections - P89LPC903; Internal Reference Voltage
Philips Semiconductors User’s Manual - Preliminary - P89LPC901/902/903 ANALOG COMPARATORS 2003 Dec 8 77 Figure 10-4: Comparator Input and Output Connections - P89LPC903 Figure 10-5: Comparator Configurations Internal Reference Voltage An internal reference voltage, Vref, may supply a default referen...
Page 78 - Comparator and Power Reduction Modes
Philips Semiconductors User’s Manual - Preliminary - P89LPC901/902/903 ANALOG COMPARATORS 2003 Dec 8 78 an interrupt if the comparator interrupt is enabled. The user should therefore disable the comparator interrupt prior to disabling the comparator. Additionally, the user should clear the comparato...
Page 83 - WATCHDOG TIMER; Watchdog Function
Philips Semiconductors User’s Manual - Preliminary - P89LPC901/902/903 WATCHDOG TIMER 2003 Dec 8 83 12. WATCHDOG TIMER The watchdog timer subsystem protects the system from incorrect code execution by causing a system reset when it underflows as a result of a failure of software to feed the timer pr...
Page 84 - Feed Sequence
Philips Semiconductors User’s Manual - Preliminary - P89LPC901/902/903 WATCHDOG TIMER 2003 Dec 8 84 Figure 12-1: Watchdog Prescaler Feed Sequence The watchdog timer control register and the 8-bit down counter (Figure 12-3) are not directly loaded by the user. The user writes to the WDCON and the WDL...
Page 87 - Watchdog Timer in Timer Mode
Philips Semiconductors User’s Manual - Preliminary - P89LPC901/902/903 WATCHDOG TIMER 2003 Dec 8 87 Watchdog Timer in Timer Mode Figure 12-4 shows the Watchdog Timer in Timer Mode. In this mode, any changes to WDCON are written to the shadow register after one watchdog clock cycle. A watchdog underf...
Page 89 - Periodic wakeup from Power down without an external oscillator
Philips Semiconductors User’s Manual - Preliminary - P89LPC901/902/903 WATCHDOG TIMER 2003 Dec 8 89 Periodic wakeup from Power down without an external oscillator Without using an external oscillator source, the power consumption required in order to have a periodic wakeup is determined by the power...
Page 91 - ADDITIONAL FEATURES; Software Reset
Philips Semiconductors User’s Manual - Preliminary - P89LPC901/902/903 ADDITIONAL FEATURES 2003 Dec 8 91 13. ADDITIONAL FEATURES The AUXR1 register contains several special purpose control bits that relate to several chip features. AUXR1 is described in Figure 13-1. Figure 13-1: AUXR1 Register Softw...
Page 93 - FLASH PROGRAM MEMORY; General description; Features
Philips Semiconductors User’s Manual - Preliminary - P89LPC901/902/903 FLASH PROGRAM MEMORY 2003 Dec 8 93 14. FLASH PROGRAM MEMORY General description The P89LPC901/902/903 Flash memory provides in-circuit electrical erasure and programming. The Flash can be read and written as bytes. On-chip erase ...
Page 95 - Figure 14-1: Flash Memory Control Register
Philips Semiconductors User’s Manual - Preliminary - P89LPC901/902/903 FLASH PROGRAM MEMORY 2003 Dec 8 95 Figure 14-1: Flash Memory Control Register Figure 14-2: Assembly language routine to erase/program all or part of a page FMCON Address: E4h Not bit addressableReset Source(s): Any resetReset Val...
Page 96 - Accessing additional flash elements; unsigned char
Philips Semiconductors User’s Manual - Preliminary - P89LPC901/902/903 FLASH PROGRAM MEMORY 2003 Dec 8 96 Figure 14-3: C-language routine to erase/program all or part of a page Accessing additional flash elements In addition to the user code array, the user’s firmware may access additional flash ele...
Page 97 - Erase-programming additional flash elements; Element
Philips Semiconductors User’s Manual - Preliminary - P89LPC901/902/903 FLASH PROGRAM MEMORY 2003 Dec 8 97 Table 14-1: Flash elements accesable through IAP-Lite Erase-programming additional flash elements The erase-program cycle takes 4ms to complete and is accomplished using the following steps: • W...
Page 99 - User Configuration Bytes
Philips Semiconductors User’s Manual - Preliminary - P89LPC901/902/903 FLASH PROGRAM MEMORY 2003 Dec 8 99 Figure 14-6: C-language routine to read a flash element User Configuration Bytes A number of user-configurable features of the P89LPC901/902/903 must be defined at power-up and therefore cannot ...
Page 101 - USER SECURITY BYTES
Philips Semiconductors User’s Manual - Preliminary - P89LPC901/902/903 FLASH PROGRAM MEMORY 2003 Dec 8 101 USER SECURITY BYTES There are four User Sector Security Bytes (SEC0, ..., SEC3), each corresponding to one sector and having the following bit assignments: Figure 14-8: User Sector Security Byt...
Page 102 - Boot Vector
Philips Semiconductors User’s Manual - Preliminary - P89LPC901/902/903 FLASH PROGRAM MEMORY 2003 Dec 8 102 Boot Vector Figure 14-9: Boot Vector (BOOTVEC) Boot Status Figure 14-10: Boot Status (BOOTSTAT) BOOTVEC Address: xxxxh Factory default value: 00h BIT SYMBOL FUNCTION BOOTVEC.7-5 - Reserved (sho...
Page 103 - INSTRUCTION SET
Philips Semiconductors User’s Manual - Preliminary - P89LPC901/902/903 INSTRUCTION SET 2003 Dec 8 103 15. INSTRUCTION SET Table 15-1: Instruction set summary Mnemonic Description Bytes Cycles Hex code ARITHMETIC ADD A,Rn Add register to A 1 1 28-2F ADD A,dir Add direct byte to A 2 1 25 ADD A,@Ri Add...
Page 107 - REVISION HISTORY
Philips Semiconductors User’s Manual - Preliminary - P89LPC901/902/903 REVISION HISTORY 2003 Dec 8 107 16. REVISION HISTORY 2003 Dec 8 Removed ENCLK bit from P89LPC902 and P89LPC903 TRIM SFRs. Modified Fig 2-1 to reflect ENCLK only on the P89LPC901. Removed RCCLK from TRIM SFR description (Fig2-1).C...
Page 109 - INDEX
Philips Semiconductors P89LPC901/902/903 INDEX User’s Manual - Preliminary - 2003 Dec 8 109 17. INDEX A Analog comparators 41, 75 configuration 75 configuration example 78 enabling 75 internal reference voltage 83 interrupt 77 power reduction modes 78 Analog comparators and power reduction 41 B Bloc...
Page 114 - Definitions
Philips Semiconductors P89LPC901/902/903 User’s manual – Preliminary – yyyy mmm dd 1 Definitions Short-form specification — The data in a short-form specification is extracted from a full data sheet with the same type number and title. For detailed information seethe relevant data sheet or data hand...
