Philips P89LPC903, P89LPC902 user manual Special Function Registers Table P89LPC901

Page 16

 

Philips Semiconductors

User’s Manual - Preliminary -

 

 

 

 

 

 

GENERAL DESCRIPTION

P89LPC901/902/903

 

 

 

 

 

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 any defined SFR locations must be strictly for the functions for the SFRs.

3.SFR bits labeled ’-’, ’0’ or ’1’ can ONLY be written and read as follows:

-’-’ Unless otherwise specified, MUST be written with ’0’, but can return any value when read (even if it was written with ’0’). It is a reserved bit and may be used in future derivatives.

-’0’ MUST be written with ’0’, and will return a ’0’ when read.

-’1’ MUST be written with ’1’, and will return a ’1’ when read.

Special Function Registers Table - P89LPC901

Name

Description

SFR

 

 

Bit Functions and Addresses

 

 

Reset Value

Address

MSB

 

 

 

 

 

 

LSB

Hex

Binary

 

 

 

 

 

 

 

 

 

 

 

E7

E6

E5

E4

E3

E2

E1

E0

 

 

ACC*

Accumulator

E0H

 

 

 

 

 

 

 

 

00H

00000000

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

00H1

000000x0

 

 

 

 

 

 

 

 

 

 

 

AUXR1#

Auxiliary Function Register

A2H

CLKLP

-

-

ENT0

SRST

0

-

DPS

 

 

 

F7

F6

F5

F4

F3

F2

F1

F0

 

 

B*

B Register

F0H

 

 

 

 

 

 

 

 

00H

00000000

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

00H1

xx000000

 

 

 

 

 

 

 

 

 

 

 

CMP1#

Comparator 1 Control Register

ACH

-

-

CE1

-

CN1

-

CO1

CMF1

DIVM#

CPU Clock Divide-by-M Control

95H

 

 

 

 

 

 

 

 

00H

00000000

DPTR

Data Pointer (2 bytes)

 

 

 

 

 

 

 

 

 

 

 

DPH

Data Pointer High

83H

 

 

 

 

 

 

 

 

00H

00000000

DPL

Data Pointer Low

82H

 

 

 

 

 

 

 

 

00H

00000000

FMADRH#

Program Flash Address High

E7H

 

 

 

 

 

 

 

 

00H

00000000

FMADRL#

Program Flash Address Low

E6H

 

 

 

 

 

 

 

 

00H

00000000

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Program Flash Control (Read)

 

BUSY

-

-

-

HVA

HVE

SV

OI

70H

01110000

FMCON#

 

E4H

 

 

 

 

 

 

 

 

 

 

Program Flash Control (Write)

FMCMD.

FMCMD.

FMCMD.

FMCMD.

FMCMD.

FMCMD.

FMCMD.

FMCMD.

 

 

 

 

7

6

5

4

3

2

1

0

 

 

 

 

 

 

 

FMDATA#

Program Flash Data

E5H

 

 

 

 

 

 

 

 

00H

00000000

 

 

 

 

 

 

 

 

 

 

 

AF

AE

AD

AC

AB

AA

A9

A8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IEN0*

Interrupt Enable 0

A8H

EA

EWDRT

EBO

-

ET1

-

ET0

-

00H

00000000

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EF

EE

ED

EC

EB

EA

E9

E8

 

 

 

 

 

 

 

 

 

 

 

 

 

00H1

00x00000

IEN1*#

Interrupt Enable 1

E8H

-

-

-

-

-

EC

EKBI

-

 

 

 

BF

BE

BD

BC

BB

BA

B9

B8

 

 

 

 

 

 

 

 

 

 

 

 

 

00H1

x0000000

IP0*

Interrupt Priority 0

B8H

-

PWDRT

PBO

-

PT1

-

PT0

-

 

 

 

 

 

 

 

 

 

 

 

 

 

2003 Dec 8

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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 P89LPC901Clock Output P89LPC901 Oscillator Option Selection- P89LPC901On-Chip RC oscillator Option 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 OutputPush-Pull Output Configuration P89LPC901/902/903 Input-Only ConfigurationPort 0 Analog Functions 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.0Mode 6 P89LPC901 P89LPC901/902/903 ModeTcon Timer/Counter 0 or 1 in Mode 0 13-bit counter PclkPclk TL0 Timer Overflow toggle output P89LPC901TR0 ENT0 Pclk TH0 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 UARTsBreak Detect Framing ErrorBrgcon 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 Comparator Interrupt Internal Reference VoltageCmpref Comparator and Power Reduction Modes Comparator Configuration ExampleKbpatn KBPATN.5,4Kbcon KbmaskKBMASK.7 KBMASK.6KBMASK.3 KBMASK.2Keypad Interrupt KBI Watchdog Function Watchdog timer configurationWdte Wdse Function Feed Sequence Wdcon Prescaler Reset Pclk P89LPC901/902/903 Watchdog Timeout ValuesWDCONA7H P89LPC901/902/903 Watchdog Timer in Timer Mode Power down operationWatchdog Clock Source PrescalerWatchdog Timer Watchdog Timer Watchdog Timer Dual Data Pointers Software ResetAUXR1 MOVXA, @DPTR MOVCA, @A+DPTRMOVX@DPTR, a 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 aReading additional flash elements Erase-programming additional flash elementsUCFG1 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.
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