SC28C94 datasheet(32/38 Pages) PHILIPS

部件名	SC28C94

功能描述	Quad universal asynchronous receiver/transmitter QUART

PDF	38 Pages

Scroll/Zoom	100%

制造商	PHILIPS [NXP Semiconductors]

网页	http://www.nxp.com

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Philips Semiconductors

Product specification

SC28C94

Quad universal asynchronous receiver/transmitter (QUART)

1998 Aug 19

D10

D11

D12

D13

RxD

RECEIVER

ENABLED

RxRDY

(SR0)

FFULL

(SR1)

RxRDY/

RDN

OVERRUN

(SR4)

RTS1

I/O1

NOTES;

1. TIMING SHOWN FOR MR1[7] = 1.

2. DEFAULT: I/O1 IS RTS AND IOPCR(5:4)

≠ 01

FFULL

ISR(1)

I/O1 = 1 or (CR[7:4] = 1010)

RESET BY

COMMAND

D10 WILL

BE LOST

D10

S = STATUS

D = DATA

D10 WILL BE

OVERWRITTEN

BY D11, 12, ETC

SD00176

Figure 18. Receiver Data Timing

MASTER STATION

TxD

TRANSMITTER

ENABLED

TxRDY

(SR2)

CEN

(WRITE]

PERIPHERAL STATION

RxD

RECEIVER

ENABLED

RxRDY

(SR0)

RDN/WRN

ADD#1

ADD#2

BIT 9

MR1 [4:3] = 11

MR1 [2] = 1

ADD#1

MR1 [2] = 0

MR1 [2] = 1

ADD#2

ADD#1

ADD#2

MR1 [4:3] = 11

ADD#1

S = STATUS

D = DATA

ADD#2

NOTE: TIMING SHOWN FOR FIFO POWER-UP DEFAULT

SD00177

Figure 19. Wake-Up Mode

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