P87LPC767BD 查看數據表（PDF） - Philips Electronics

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P87LPC767BD

Low power, low price, low pin count (20 pin) microcontroller with 4-kbyte OTP and 8-bit A/D converter

Philips Electronics 

Philips Semiconductors

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

microcontroller with 4-kbyte OTP and 8-bit A/D converter

Product data

87LPC767

P2.0–P2.1

VSS

VDD

6, 7

I/O Port 2: Port 2 is a 2-bit I/O port with a user-configurable output type. Port 2 latches are configured in the

quasi-bidirectional mode and have either ones or zeros written to them during reset, as determined by

the PRHI bit in the UCFG1 configuration byte. The operation of port 2 pins as inputs and outputs

depends upon the port configuration selected. Each port pin is configured independently. Refer to the

section on I/O port configuration and the DC Electrical Characteristics for details.

Port 2 also provides various special functions as described below.

7

O

P2.0 X2

Output from the oscillator amplifier (when a crystal oscillator option is

selected via the EPROM configuration).

CLKOUT CPU clock divided by 6 clock output when enabled via SFR bit and in

conjunction with internal RC oscillator or external clock input.

6

I

P2.1 X1

Input to the oscillator circuit and internal clock generator circuits (when

selected via the EPROM configuration).

5

I Ground: 0 V reference.

15

I Power Supply: This is the power supply voltage for normal operation as well as Idle and

Power Down modes.

SPECIAL FUNCTION REGISTERS

Name

Description

SFR

Address MSB

E7

E6

ACC*

Accumulator

E0h

C7

C6

ADCON#* A/D Control

C0h ENADC

–

AUXR1# Auxiliary Function Register A2h

KBF BOD

F7

F6

B*

B register

F0h

CMP1#

Comparator 1 control

register

ACh

–

–

CMP2#

Comparator 2 control

register

ADh

–

–

DAC0# A/D Result

C5h

DIVM#

CPU clock divide-by-M

control

95h

DPTR: Data pointer (2 bytes)

DPH

Data pointer high byte

83h

DPL

Data pointer low byte

82h

I2CFG#* I2C configuration register

CF

CE

C8h/RD SLAVEN MASTRQ

C8h/WR SLAVEN MASTRQ

I2CON#* I2C control register

DF

DE

D8h/RD RDAT ATN

I2DAT# I2C data register

D8h/WR CXA

D9h/RD RDAT

IDLE

0

D9h/WR XDAT

x

AF

AE

IEN0*

Interrupt enable 0

A8h

EA

EWD

EF

EE

IEN1#* Interrupt enable 1

E8h

ETI

–

BF

BE

IP0*

Interrupt priority 0

B8h

–

PWD

IP0H#

Interrupt priority 0 high byte B7h

–

PWDH

Bit Functions and Addresses

E5

E4

E3

E2

C5

C4

C3

C2

–

ADCI ADCS RCCLK

BOI LPEP SRST

0

F5

F4

F3

F2

E1

C1

AADR1

–

F1

LSB

E0

C0

AADR0

DPS

F0

Reset

Value

00h

00h

02h1

00h

CE1

CP1

CN1

OE1

CO1 CMF1 00h1

CE2

CP2

CN2

OE2

CO2 CMF2 00h1

00h

00h

CD

0

CLRTI

DD

DRDY

CDR

0

x

AD

EBO

ED

EC1

BD

PBO

PBOH

CC

TIRUN

TIRUN

DC

ARL

CARL

0

x

AC

ES

EC

EAD

BC

PS

PSH

CB

–

–

DB

STR

CSTR

0

x

AB

ET1

EB

–

BB

PT1

PT1H

CA

–

–

DA

STP

CSTP

0

x

AA

EX1

EA

EC2

BA

PX1

PX1H

C9

CT1

CT1

D9

MASTER

XSTR

0

x

A9

ET0

E9

EKB

B9

PT0

PT0H

C8

CT0

CT0

D8

–

XSTP

0

x

A8

EX0

E8

EI2

B8

PX0

PX0H

00h

00h

00h1

80h1

80h

00h

00h1

00h1

00h1

2001 Aug 07

6

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