Philips P89LPC903, P89LPC901 user manual Special Function Registers Table P89LPC902

Page 19

Philips SemiconductorsUser’s Manual - Preliminary -

 

GENERAL DESCRIPTION

 

 

 

 

P89LPC901/902/903

 

 

 

 

 

 

 

 

 

 

Special Function Registers Table - P89LPC902

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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

-

-

-

-

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

OE1

CO1

CMF1

 

CMP2#

Comparator 2 Control Register

ADH

-

-

CE2

-

CN2

OE2

CO2

CMF2

00H1

xx000000

 

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

-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IP0H#

Interrupt Priority 0 High

B7H

-

PWDRT

PBOH

-

PT1H

-

PT0H

-

00H1

x0000000

 

 

 

 

 

H

 

 

 

 

 

 

 

 

 

 

 

 

FF

FE

FD

FC

FB

FA

F9

F8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

00H1

00x00000

 

IP1*#

Interrupt Priority 1

F8H

-

-

-

-

-

PC

PKBI

-

 

 

 

 

 

 

 

 

 

 

 

 

00H1

00x00000

 

IP1H#

Interrupt Priority 1 High

F7H

-

-

-

-

-

PCH

PKBIH

-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

KBCON#

Keypad Control Register

94H

-

-

-

-

-

-

PATN_S

KBIF

00H1

xxxxxx00

 

 

 

 

 

 

 

 

 

 

EL

 

 

 

 

KBMASK#

Keypad Interrupt Mask Register

86H

 

 

 

 

 

 

 

 

00H

00000000

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2003 Dec 8

19

Image 19
Contents Philips Semiconductors User ManualTable of Contents Power Monitoring Functions 103 P89LPC901/902/903 List of Figures P89LPC902 Pin ConfigurationsProduct comparison Logic SymbolsCPU Block Diagram P89LPC901High Performance Accelerated 2-clock 80C51 CPU Block Diagram P89LPC902Uart Block Diagram P89LPC903KBI5 Mnemonic PIN no Type Name and FunctionCIN1A KBI4XTAL1 P3.1KBI2 CMP2KBI0 CIN2ARxD P1.0TxD P1.1Special Function Registers Table P89LPC901 Special Function RegistersBit 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# Code P89LPC901/902/903 Memory OrganizationData SFRGeneral Description Low Speed Oscillator Option P89LPC901 Enhanced CPUClock Definitions CPU Clock OscclkClock Output P89LPC901 Oscillator Option Selection- P89LPC901On-Chip RC oscillator Option Trim BIT Symbol FunctionWatchdog Oscillator Option External Clock Input Option P89LPC901Divm High freqMed freq Low freqAtchdog O sc illa to r CPU Clock Cclk Wakeup DelayCPU Clock Cclk Modification Divm Register L KP89LPC901/902/903 Low Power Select P89LPC901 P89LPC901/902/903 Interrupt Priority Structure Summary of Interrupts P89LPC902 Description Flag Bits Address Enable Bits Priority RankingSummary of Interrupts P89LPC901 Description Interrupt ArbitrationExternal Interrupt Pin Glitch Suppression P89LPC901/902/903 External Interrupt InputsTF1 ET1 TI & RI/RI ES/ESR RST Port ConfigurationsQuasi-Bidirectional Output Configuration Number of I/O Pins Available Clock Source Reset OptionQuasi-Bidirectional Output Open Drain Output ConfigurationPush-Pull Output Configuration P89LPC901/902/903 Input-Only ConfigurationPort 0 Analog Functions Port Output Configuration P89LPC903 Additional Port FeaturesPort Output Configuration P89LPC901 Port Output Configuration P89LPC902Ports Ports TMOD.3 TmodTMOD.7 TMOD.6TAMOD.0 ModeTamod P89LPC901 TAMOD.7-1Mode 6 P89LPC901 P89LPC901/902/903 ModeTcon Pclk Timer/Counter 0 or 1 in Mode 0 13-bit counterPclk TL0 Timer Overflow toggle output P89LPC901TR0 ENT0 Pclk TH0 Timers 0 Real-time Clock Source Real-time clock/system timer Block DiagramXclk Real-time Clock/System Timer Clock Source P89LPC901FOSC2 FOSC1 FOSC0 RTCS10 UCFG1.2 UCFG1.1 UCFG1.0 Cclk Frequency RTC Clock FrequencyReal-time Clock Interrupt/Wake Up Reset Sources Affecting the Real-time ClockReal-time Clock/System Timer Clock Source P89LPC902/903 Changing RTCS1-0Rtccon Brownout Detection Brownout Options Power-On DetectionPower Reduction Modes P89LPC901/902/903 Power Reduction ModesPcon Pcona Power Monitoring Functions Uart P89LPC903 SFR Locations for UARTs P89LPC901/902/903 SFR SpaceBaud Rate Generator and Selection Updating the BRGR1 and BRGR0 SFRsBreak Detect Framing ErrorBrgcon Scon Sstat More About Uart ModeSerial Port Mode 0 Double Buffering Must Be Disabled PCON.6 RB8 SMOD0 Framing Error and RI in Modes 2 and 3 with SM2 =FE and RI when SM2 = 1 in Modes 2 P89LPC901/902/903 More About Uart Modes 2Double Buffering in Different Modes P89LPC901/902/903 Double BufferingTransmission with and without Double Buffering 9th Bit Bit 8 in Double Buffering Modes 1, 2Automatic Address Recognition Multiprocessor CommunicationsUart P89LPC903 Uart P89LPC903 Block Diagram of Reset Power-On reset code executionRstsrc CMPn Comparator ConfigurationComparator Input and Output Connections P89LPC901 Comparator Interrupt Internal Reference VoltageCmpref Comparator Configuration Example Comparator and Power Reduction ModesKBPATN.5,4 KbpatnKbmask KbconKBMASK.2 KBMASK.7KBMASK.6 KBMASK.3Keypad Interrupt KBI Watchdog Function Watchdog timer configurationWdte Wdse Function Feed Sequence Wdcon Prescaler Reset Pclk P89LPC901/902/903 Watchdog Timeout ValuesWDCONA7H Prescaler P89LPC901/902/903 Watchdog Timer in Timer ModePower down operation Watchdog Clock SourceWatchdog Timer Watchdog Timer Watchdog Timer Dual Data Pointers Software ResetAUXR1 MOVXA, @DPTR MOVCA, @A+DPTRMOVX@DPTR, a Introduction to IAP-Lite FeaturesUsing Flash as data storage General descriptionFlash Program Memory Fmcon C-language routine to erase/program all or part of a Accessing additional flash elementsReading additional flash elements Erase-programming additional flash elementsUCFG1 Fmadrl C-language routine to read a flash element User Configuration BytesP89LPC901 UCFG1SECx User Security BytesBootstat P89LPC901/902/903 Boot VectorBoot Status BootvecLogical ArithmeticData Transfer Mnemonic Description Bytes Cycles Hex CodeBranching BooleanMiscellaneous RetiB8-BF D8-DFRevision 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.