SC16C554 datasheet(4/55 Pages) PHILIPS

Part #	SC16C554

Description	Quad UART with 16-byte FIFO and infrared (IrDA) encoder/decoder

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Manufacturer	PHILIPS [NXP Semiconductors]

Direct Link	http://www.nxp.com

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4 / 55 page

Philips Semiconductors

SC16C554/554D

Quad UART with 16-byte FIFO and infrared (IrDA) encoder/decoder

Product data

Rev. 05 — 10 May 2004

4 of 55

9397 750 13132

Fig 2.

SC16C554/554D block diagram (68 mode).

TRANSMIT

FIFO

REGISTERS

TXA-TXD

RECEIVE

SHIFT

REGISTER

RECEIVE

FIFO

REGISTERS

RXA-RXD

SC16C554/554D

TRANSMIT

SHIFT

REGISTER

MODEM

CONTROL

LOGIC

DTRA-DTRD

RTSA-RTSD

CLOCK AND

BAUD RATE

GENERATOR

CTSA-CTSD

RIA-RID

CDA-CDD

DSRA-DSRD

XTAL2

XTAL1

DATA BUS

AND

CONTROL LOGIC

D0–D7

R/W

RESET

A0–A4

CS

REGISTER

SELECT

LOGIC

IRQ

TXRDY

RXRDY

INTERRUPT

CONTROL

LOGIC

002aaa343

FLOW

CONTROL

LOGIC

FLOW

CONTROL

LOGIC

IR

DECODER

IR

ENCODER

CLKSEL

16/68

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