Philips P89LPC902, P89LPC901, P89LPC903 user manual CMP1 Cmpref CIN1A KB2 KB0 KB6 KB5 KB4

Page 20

Philips SemiconductorsUser’s Manual - Preliminary -

 

GENERAL DESCRIPTION

 

 

 

 

 

 

P89LPC901/902/903

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Name

Description

SFR

 

 

 

Bit Functions and Addresses

 

 

Reset Value

 

Address

MSB

 

 

 

 

 

 

 

 

LSB

Hex

 

Binary

 

 

 

 

 

 

 

 

 

 

 

 

 

KBPATN#

Keypad Pattern Register

93H

 

 

 

 

 

 

 

 

 

 

FFH

 

11111111

 

 

 

 

87

86

85

 

84

83

82

81

80

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

P0*

Port 0

80H

-

CMP1/

CMPREF/

CIN1A/

-

KB2

-

KB0

 

Note 1

 

KB6

 

KB5

KB4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

97

96

95

 

94

93

92

91

90

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

P1*

Port 1

90H

-

-

 

 

 

-

-

-

-

-

 

 

 

RST

 

 

 

 

 

 

 

B7

B6

 

B5

B4

B3

B2

B1

B0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

P0M1#

Port 0 Output Mode 1

84H

-

(P0M1.6)

(P0M1.5)

(P0M1.4)

-

(P0M1.2)

-

(P0M1.0)

FFH

 

11111111

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

P0M2#

Port 0 Output Mode 2

85H

-

(P0M2.6)

(P0M2.5)

(P0M2.4)

-

(P0M2.2)

-

(P0M2.0)

00H

 

00000000

 

 

 

 

 

 

 

 

 

 

 

 

FFH1

11111111

 

P1M1#

Port 1 Output Mode 1

91H

-

-

(P1M1.5)

-

-

-

-

-

 

P1M2#

Port 1 Output Mode 2

92H

-

-

(P1M2.5)

-

-

-

-

-

00H1

 

00000000

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PCON#

Power Control Register

87H

-

-

BOPD

BOI

GF1

GF0

PMOD1

PMOD0

00H

 

00000000

 

 

 

 

 

 

 

 

 

 

 

 

00H1

 

00000000

 

PCONA#

Power Control Register A

B5H

RTCPD

-

VCPD

-

-

-

-

-

 

 

 

 

 

D7

D6

 

D5

D4

D3

D2

D1

D0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PSW*

Program Status Word

D0H

CY

AC

 

F0

RS1

RS0

OV

F1

P

00H

 

00000000

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PT0AD#

Port 0 Digital Input Disable

F6H

-

-

PT0AD.5

PT0AD.4

-

PT0AD.2

-

-

00H

 

xx00000x

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RSTSRC#

Reset Source Register

DFH

-

-

BOF

POF

-

R_WD

R_SF

R_EX

 

Note 2

 

 

 

 

 

 

 

 

 

 

 

 

60H1,5

011xxx00

 

 

 

 

 

 

 

 

 

 

 

 

 

RTCCON#

Real-Time Clock Control

D1H

RTCF

RTCS1

RTCS0

-

-

-

ERTC

RTCEN

 

RTCH#

Real-Time Clock Register High

D2H

 

 

 

 

 

 

 

 

 

 

00H5

 

00000000

 

RTCL#

Real-Time Clock Register Low

D3H

 

 

 

 

 

 

 

 

 

 

00H5

 

00000000

 

SP

Stack Pointer

81H

 

 

 

 

 

 

 

 

 

 

07H

 

00000111

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8F

8E

 

8D

8C

8B

8A

89

88

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TCON*

Timer 0 and 1 Control

88H

TF1

TR1

 

TF0

TR0

-

-

-

-

00H

 

00000000

 

TH0

Timer 0 High

8CH

 

 

 

 

 

 

 

 

 

 

00H

 

00000000

 

 

 

 

 

 

 

 

 

 

 

 

 

TH1

Timer 1 High

8DH

 

 

 

 

 

 

 

 

 

 

00H

 

00000000

 

TL0

Timer 0 Low

8AH

 

 

 

 

 

 

 

 

 

 

00H

 

00000000

 

TL1

Timer 1 Low

8BH

 

 

 

 

 

 

 

 

 

 

00H

 

00000000

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TMOD

Timer 0 and 1 Mode

89H

-

-

T1M1

T1M0

-

-

T0M1

T0M0

00H

 

00000000

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TRIM#

Internal Oscillator Trim Register

96H

-

-

TRIM.5

TRIM.4

TRIM.3

TRIM.2

TRIM.1

TRIM.0

Notes 4,5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2003 Dec 8

20

Image 20
Contents User Manual Philips SemiconductorsTable of Contents Power Monitoring Functions 103 P89LPC901/902/903 List of Figures Pin Configurations P89LPC902Logic Symbols Product comparisonBlock Diagram P89LPC901 CPUBlock Diagram P89LPC902 High Performance Accelerated 2-clock 80C51 CPUBlock Diagram P89LPC903 UartMnemonic PIN no Type Name and Function CIN1AKBI4 KBI5P3.1 XTAL1CMP2 KBI0CIN2A KBI2P1.0 TxDP1.1 RxDSpecial Function Registers Special Function Registers Table P89LPC901Bit Functions and Addresses Hex Special Function Registers Table P89LPC902 CMP1 Cmpref CIN1A KB2 KB0 KB6 KB5 KB4 A7H PRE2 PRE1 PRE0 Wdrun Wdtof Special Function Registers Table P89LPC903 F7H Psth PCH Pkbih TRIM.5 TRIM.4 TRIM.3 TRIM.2 TRIM.1 TRIM.0 WDCON# P89LPC901/902/903 Memory Organization DataSFR CodeGeneral Description Enhanced CPU Clock DefinitionsCPU Clock Oscclk Low Speed Oscillator Option P89LPC901On-Chip RC oscillator Option Oscillator Option Selection- P89LPC901Clock Output P89LPC901 BIT Symbol Function Watchdog Oscillator OptionExternal Clock Input Option P89LPC901 TrimHigh freq Med freqLow freq DivmAtchdog CPU Clock Cclk Wakeup Delay CPU Clock Cclk Modification Divm RegisterL K O sc illa to rP89LPC901/902/903 Low Power Select P89LPC901 P89LPC901/902/903 Interrupt Priority Structure Flag Bits Address Enable Bits Priority Ranking Summary of Interrupts P89LPC901 DescriptionInterrupt Arbitration Summary of Interrupts P89LPC902 DescriptionP89LPC901/902/903 External Interrupt Inputs External Interrupt Pin Glitch SuppressionTF1 ET1 TI & RI/RI ES/ESR Port Configurations Quasi-Bidirectional Output ConfigurationNumber of I/O Pins Available Clock Source Reset Option RSTOpen Drain Output Configuration Quasi-Bidirectional OutputPort 0 Analog Functions P89LPC901/902/903 Input-Only ConfigurationPush-Pull Output Configuration Additional Port Features Port Output Configuration P89LPC901Port Output Configuration P89LPC902 Port Output Configuration P89LPC903Ports Ports Tmod TMOD.7TMOD.6 TMOD.3Mode Tamod P89LPC901TAMOD.7-1 TAMOD.0Tcon P89LPC901/902/903 ModeMode 6 P89LPC901 Timer/Counter 0 or 1 in Mode 0 13-bit counter PclkTR0 ENT0 Pclk TH0 Timer Overflow toggle output P89LPC901Pclk TL0 Timers 0 Real-time clock/system timer Block Diagram Real-time Clock SourceReal-time Clock/System Timer Clock Source P89LPC901 FOSC2 FOSC1 FOSC0 RTCS10UCFG1.2 UCFG1.1 UCFG1.0 Cclk Frequency RTC Clock Frequency XclkReset Sources Affecting the Real-time Clock Real-time Clock/System Timer Clock Source P89LPC902/903Changing RTCS1-0 Real-time Clock Interrupt/Wake UpRtccon Brownout Detection Power-On Detection Brownout OptionsP89LPC901/902/903 Power Reduction Modes Power Reduction ModesPcon Pcona Power Monitoring Functions Uart P89LPC903 P89LPC901/902/903 SFR Space Baud Rate Generator and SelectionUpdating the BRGR1 and BRGR0 SFRs SFR Locations for UARTsBrgcon Framing ErrorBreak Detect Scon More About Uart Mode SstatSerial Port Mode 0 Double Buffering Must Be Disabled Framing Error and RI in Modes 2 and 3 with SM2 = FE and RI when SM2 = 1 in Modes 2P89LPC901/902/903 More About Uart Modes 2 PCON.6 RB8 SMOD0P89LPC901/902/903 Double Buffering Double Buffering in Different Modes9th Bit Bit 8 in Double Buffering Modes 1, 2 Transmission with and without Double BufferingMultiprocessor Communications Automatic Address RecognitionUart P89LPC903 Uart P89LPC903 Power-On reset code execution Block Diagram of ResetRstsrc Comparator Configuration CMPnComparator Input and Output Connections P89LPC901 Cmpref Internal Reference VoltageComparator Interrupt Comparator and Power Reduction Modes Comparator Configuration ExampleKbpatn KBPATN.5,4Kbcon KbmaskKBMASK.7 KBMASK.6KBMASK.3 KBMASK.2Keypad Interrupt KBI Wdte Wdse Function Watchdog timer configurationWatchdog Function Feed Sequence Wdcon WDCONA7H P89LPC901/902/903 Watchdog Timeout ValuesPrescaler Reset Pclk P89LPC901/902/903 Watchdog Timer in Timer Mode Power down operationWatchdog Clock Source PrescalerWatchdog Timer Watchdog Timer Watchdog Timer AUXR1 Software ResetDual Data Pointers MOVX@DPTR, a MOVCA, @A+DPTRMOVXA, @DPTR Features Using Flash as data storageGeneral description Introduction to IAP-LiteFlash Program Memory Fmcon Accessing additional flash elements C-language routine to erase/program all or part of aUCFG1 Erase-programming additional flash elementsReading additional flash elements Fmadrl User Configuration Bytes C-language routine to read a flash elementUCFG1 P89LPC901User Security Bytes SECxP89LPC901/902/903 Boot Vector Boot StatusBootvec BootstatArithmetic LogicalMnemonic Description Bytes Cycles Hex Code Data TransferBoolean BranchingReti B8-BFD8-DF MiscellaneousRevision History 108 Index Dual Data Pointers Port 0 12, 14 SFR 113 P89LPC901/902/903

P89LPC903, P89LPC902, P89LPC901 specifications

The Philips P89LPC901, P89LPC902, and P89LPC903 are a series of 8-bit microcontrollers designed for embedded system applications. These models, which belong to the LPC900 series, are notable for their affordability and versatility, making them an attractive choice for both hobbyists and professional developers.

One of the core features of the P89LPC901, P89LPC902, and P89LPC903 microcontrollers is their powerful 8-bit architecture. Operating at clock speeds up to 20 MHz, they deliver efficient performance suited for a range of tasks. Each model includes a comprehensive instruction set that supports various data manipulation and arithmetic functions, enabling extensive programming capabilities.

These microcontrollers come with built-in memory, with configurations that vary among the three models. The P89LPC901 typically features 4 KB of Flash memory and 256 bytes of RAM, while the P89LPC902 and P89LPC903 offer enhanced memory options. This Flash memory allows for reprogrammability, making it easier to update and modify applications as needed.

Another significant characteristic of the LPC900 series is their integrated peripherals. These models are equipped with a variety of I/O ports, allowing for easy interfacing with other devices and components. The P89LPC901 supports up to 32 I/O pins, while the P89LPC902 and P89LPC903 provide additional features such as analog-to-digital converters (ADCs), timers, and serial communication interfaces. This broad range of peripherals empowers developers to design complex applications without needing extra hardware.

Power consumption is also a key consideration for microcontroller applications. The P89LPC901, P89LPC902, and P89LPC903 are designed with low power consumption in mind, making them ideal for battery-operated devices and energy-efficient projects. They can operate in various power modes, allowing for greater flexibility in deployment.

In terms of technology, these microcontrollers utilize advanced CMOS technology, ensuring high reliability and durability. Their design offers a robust solution for numerous applications, including consumer electronics, industrial controls, and automation systems.

In summary, the Philips P89LPC901, P89LPC902, and P89LPC903 microcontrollers present an attractive combination of performance, integrated peripherals, low power consumption, and versatility. Their features cater to a wide array of applications, keeping them relevant in a rapidly evolving technology landscape. For hobbyists and professionals alike, these microcontrollers represent a reliable foundation for embedded system development.