87C58X2 datasheet(27/62 Pages) PHILIPS

Part #	87C58X2

Description	80C51 8-bit microcontroller family 4K/8K/16K/32K ROM/OTP 128B/256B RAM low voltage 2.7 to 5.5 V, low power, high speed 30/33 MHz

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Manufacturer	PHILIPS [NXP Semiconductors]

Direct Link	http://www.nxp.com

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27 / 62 page

Philips Semiconductors

Product data

P80C3xX2; P80C5xX2;

P87C5xX2

80C51 8-bit microcontroller family

4K/8K/16K/32K ROM/OTP, low voltage (2.7 to 5.5 V),

low power, high speed (30/33 MHz)

2003 Jan 24

27

80C51 Internal Bus

SBUF

Zero Detector

D

Q

S

CL

Write

to

SBUF

TX Control

TX Clock

Send

Data

Start

RX Control

Start

RX Clock RI

T1

Serial

Port

Interrupt

Input Shift Register

(9 Bits)

Load

SBUF

Shift

SBUF

Read

SBUF

80C51 Internal Bus

TxD

TB8

÷ 16

1-to-0

Transition

Detector

Sample

÷ 2

Timer 1

Overflow

SMOD = 1

SMOD = 0

Shift

Bit Detector

Transmit

Send

S1P1

Shift

TX

Clock

Write to SBUF

Start Bit

TxD

Stop Bit

D0

D1

D2

D3

D4

D5

D6

D7

TI

RxD

RX

Clock

÷ 16 Reset

Start

Bit

RxD

Stop Bit

D0

D1

D2

D3

D4

D5

D6

D7

Bit Detector

Sample Times

Shift

RI

Receive

Data

÷ 16

Load

SBUF

Shift

1FFH

SU00540

Figure 15. Serial Port Mode 1

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87C58X2 Datasheet(PDF) 27 Page - NXP Semiconductors

87C58X2 Datasheet(HTML) 27 Page - NXP Semiconductors

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