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P87LPC764

Low power, low price, low pin count (20 pin) microcontroller with 4 kbyte OTP

NXP Semiconductors. 

Philips Semiconductors

Low power, low price, low pin count (20 pin)

microcontroller with 4 kbyte OTP

Product data

P87LPC764

SPECIAL FUNCTION REGISTERS

Name

Description

SFR

Address MSB

Bit Functions and Addresses

LSB

Reset

Value

E7

E6

E5

E4

E3

E2

E1

E0

ACC*

Accumulator

E0h

AUXR1# Auxiliary Function Register A2h

KBF BOD

BOI LPEP SRST

0

00h

–

DPS 02h1

F7

F6

F5

F4

F3

F2

F1

F0

B*

B register

F0h

00h

CMP1#

Comparator 1 control

register

ACh

–

–

CE1

CP1

CN1

OE1

CO1 CMF1 00h1

CMP2#

Comparator 2 control

register

ADh

–

–

CE2

CP2

CN2

OE2

CO2 CMF2 00h1

DIVM#

CPU clock divide-by-M

control

95h

00h

DPTR: Data pointer (2 bytes)

DPH

Data pointer high byte

83h

00h

DPL

Data pointer low byte

82h

00h

CF

CE

CD

CC

CB

I2CFG#* I2C configuration register C8h/RD SLAVEN MASTRQ

0

TIRUN

–

CA

C9

C8

–

CT1

CT0 00h1

C8h/WR SLAVEN MASTRQ CLRTI TIRUN

–

–

CT1

CT0

I2CON#* I2C control register

DF

DE

DD

DC

D8h/RD RDAT ATN DRDY ARL

DB

STR

DA

D9

D8

STP MASTER

–

80h1

I2DAT# I2C data register

D8h/WR CXA

D9h/RD RDAT

IDLE

0

CDR

0

CARL

0

CSTR

0

CSTP

0

XSTR

0

XSTP

0 80h

D9h/WR XDAT

x

x

x

x

x

x

x

AF

AE

AD

AC

AB

AA

A9

A8

IEN0*

Interrupt enable 0

A8h

EA

EWD EBO

ES

ET1

EX1

ET0

EX0 00h

IEN1#* Interrupt enable 1

EF

EE

ED

EC

EB

EA

E9

E8

E8h

ETI

–

EC1

–

–

EC2

EKB

EI2 00h1

IP0*

IP0H#

Interrupt priority 0

B8h

Interrupt priority 0 high byte B7h

BF

BE

BD

BC

BB

BA

B9

B8

–

PWD PBO

PS

PT1

PX1

PT0

PX0 00h1

–

PWDH PBOH PSH PT1H PX1H PT0H PX0H 00h1

FF

FE

FD

FC

IP1*

Interrupt priority 1

F8h

PTI

–

PC1

–

IP1H#

Interrupt priority 1 high byte F7h

PTIH

–

PC1H

–

FB

FA

F9

F8

–

PC2

PKB

PI2 00h1

–

PC2H PKBH PI2H 00h1

KBI#

Keyboard Interrupt

86h

00h

87

86

85

84

83

82

81

80

P0*

Port 0

80h

T1

CMP1 CMPREF CIN1A CIN1B CIN2A CIN2B CMP2 Note 2

97

96

95

94

93

92

91

90

P1*

Port 1

90h (P1.7) (P1.6) RST INT1 INT0

T0

RxD

TxD Note 2

A7

A6

A5

A4

A3

A2

A1

A0

P2*

Port 2

A0h

–

–

–

–

–

–

X1

X2 Note 2

P0M1# Port 0 output mode 1

84h (P0M1.7) (P0M1.6) (P0M1.5) (P0M1.4) (P0M1.3) (P0M1.2) (P0M1.1) (P0M1.0) 00h

P0M2#

P1M1#

P1M2#

Port 0 output mode 2

Port 1 output mode 1

Port 1 output mode 2

85h (P0M2.7) (P0M2.6) (P0M2.5) (P0M2.4) (P0M2.3) (P0M2.2) (P0M2.1) (P0M2.0) 00H

91h (P1M1.7) (P1M1.6)

–

(P1M1.4)

–

–

(P1M1.1) (P1M1.0) 00h1

92h (P1M2.7) (P1M2.6)

–

(P1M2.4)

–

–

(P1M2.1) (P1M2.0) 00h1

P2M1#

P2M2#

Port 2 output mode 1

Port 2 output mode 2

A4h

P2S

P1S

P0S ENCLK T1OE T0OE (P2M1.1) (P2M1.0) 00h

A5h

–

–

–

–

–

–

(P2M2.1) (P2M2.0) 00h1

PCON

Power control register

87h SMOD1 SMOD0 BOF POF GF1 GF0

PD

IDL Note 3

2003 Sep 03

7

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