TDA8029C2 datasheet(21/58 Pages) PHILIPS

21 / 58 page

2003 Oct 30

Philips Semiconductors

Product speciﬁcation

Low power single card reader

TDA8029

handbook, full pagewidth

MDB816

SM0/FE

SM1

SM2

REN

TB8

RB8

SMOD1

SMOD0

0 : SCON.7 = SM0

1 : SCON.7 = FE

POF

GF1

GF0

IDL

SCON

(98h)

PCON

(87h)

Set FE bit if STOP bit is 0 (framing error)

SM0 to UART mode control

START

bit

DATA byte

only

MODE 2, 3

STOP

bit

Fig.6 UART framing error detection.

handbook, full pagewidth

MDB817

SM0

SM1

SM2

REN

TB8

COMPARATOR

RB8

SCON

(98h)

received address D0 to D7

programmed address

Fig.7 UART multiprocessor communication, automatic address recognition.

UART modes 2 or 3 and SM2 = 1: there is an interrupt if REN = 1, RB8 = 1 and received address is equal to programmed address.

When own address is received, reset SM2 to receive the data bytes. When all data bytes are received, set SM2 to wait for the next address.

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