TDA8029HLSLASHC2 datasheet(17/58 Pages) PHILIPS

номер детали	TDA8029HL/C2

подробное описание детали	Low power single card reader

PDF	58 Pages

Scroll/Zoom	100%

производитель	PHILIPS [NXP Semiconductors]

домашняя страница	http://www.nxp.com

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17 / 58 page

2003 Oct 30

Philips Semiconductors

Product speciﬁcation

Low power single card reader

TDA8029

Summary of baud rate equations: Timer 2 is in baud rate

generating mode. If timer 2 is being clocked through T2

(P1.0) the baud rate is:

(3)

If timer 2 is being clocked internally, the baud rate is:

(4)

To obtain the reload value for RCAP2H and RCAP2L, the

above equation can be rewritten as:

(5)

Where fosc = oscillator frequency.

Baud rate

Timer 2 overflow rate

--------------------------------------------------------

Baud rate

Oscillator frequency

65536

RCAP2H, RCAP2L

()

–

[]

------------------------------------------------------------------------------------------------

RCAP2H, RCAP2L

65536

osc

baud rate

--------------------------------------

–

handbook, full pagewidth

MGW425

TR2

TL2

(8-bit)

TH2

(8-bit)

RCAP2L

EXF2

RCAP2H

reload

SMOD

RCLK

TCLK

Timer 1

overflow

transition

detector

control

Note availability of additional external interrupt

note fosc is divided by 2, not 12

Timer 2

interrupt

RX clock

T2EX

EXEN2

÷2

÷16

TX clock

÷16

÷2

C/T2 = 0

C/T2 = 1

OSC

Fig.5 Timer 2 in baud rate generator mode.

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