Philips SemiconductorsUser’s Manual - Preliminary -

 

GENERAL DESCRIPTION

 

 

 

 

P89LPC901/902/903

 

 

 

 

 

 

 

 

 

 

Special Function Registers Table - P89LPC903

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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

-

EBRR

-

-

SRST

0

-

DPS

 

 

 

 

F7

F6

F5

F4

F3

F2

F1

F0

 

 

 

B*

B Register

F0H

 

 

 

 

 

 

 

 

00H

00000000

 

 

 

 

 

 

 

 

 

 

BRGR0#§

Baud Rate Generator Rate Low

BEH

 

 

 

 

 

 

 

 

00H

00000000

 

 

 

 

 

 

 

 

 

 

BRGR1#§

Baud Rate Generator Rate High

BFH

 

 

 

 

 

 

 

 

00H

00000000

 

 

 

 

 

 

 

 

 

 

 

 

00H%

xxxxxx00

 

BRGCON#

Baud Rate Generator Control

BDH

-

-

-

-

-

-

SBRGS

BRGEN

 

 

 

 

 

 

 

 

 

 

 

 

00H1

xx000000

 

CMP1#

Comparator 1 Control Register

ACH

-

-

CE1

-

CN1

-

CO1

CMF1

 

CMP2#

Comparator 2 Control Register

ADH

-

-

CE2

-

CN2

-

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

ES/ESR

ET1

-

ET0

-

00H

00000000

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EF

EE

ED

EC

EB

EA

E9

E8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

00H1

00x00000

 

IEN1*#

Interrupt Enable 1

E8H

-

EST

-

-

-

EC

EKBI

-

 

 

 

 

BF

BE

BD

BC

BB

BA

B9

B8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

00H1

x0000000

 

IP0*

Interrupt Priority 0

B8H

-

PWDRT

PBO

PS/PSR

PT1

-

PT0

-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IP0H#

Interrupt Priority 0 High

B7H

-

PWDRT

PBOH

PSH/

PT1H

-

PT0H

-

00H1

x0000000

 

 

 

 

 

H

 

PSRH

 

 

 

 

 

 

 

 

 

 

FF

FE

FD

FC

FB

FA

F9

F8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

00H1

00x00000

 

IP1*#

Interrupt Priority 1

F8H

-

PST

-

-

-

PC

PKBI

-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2003 Dec 8

22

Page 22
Image 22
Philips P89LPC901, P89LPC902 user manual Special Function Registers Table P89LPC903

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.