P87LPC767 View Datasheet(PDF) - Philips Electronics

Part Name

Description

Manufacturer

P87LPC767

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

TB8

WRITE

TO SBUF

80C51 INTERNAL BUS

TIMER 1

OVERFLOW

÷2

DS

Q

CL

SBUF

ZERO DETECTOR

SMOD1 = 0

SMOD1

=1

÷16

1-TO-0

TRANSITION

DETECTOR

START

TX CLOCK

TX CONTROL

TI

SHIFT

DATA

SEND

÷16

START

RX

RI

CLOCK

RX CONTROL

LOAD SBUF

SHIFT

1FFH

SERIAL PORT

INTERRUPT

RxD

P1.1 ALT

INPUT

FUNCTION

BIT

DETECTOR

LOAD

SBUF

READ

SBUF

INPUT SHIFT REGISTER

SBUF

80C51 INTERNAL BUS

TxD

P1.0 ALT

OUTPUT

FUNCTION

TX CLOCK

WRITE TO SBUF

SEND

DATA

SHIFT

TxD

TI

START

BIT

D0

D1

D2

D3

D4

D5

D6

D7

STOP BIT

TRANSMIT

RX CLOCK

RxD

START

÷ 16 RESET

BIT

D0

D1

D2

D3

D4

D5

D6

D7

STOP BIT

BIT DETECTOR SAMPLE TIMES

SHIFT

RI

Figure 32. Serial Port Mode 1

RECEIVE

SU01179

2001 Aug 07

40

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