MC33593 Ver la hoja de datos (PDF) - Motorola => Freescale

Número de pieza

componentes Descripción

Fabricante

MC33593

PLL Tuned UHF Receiver / LQFP24

Motorola => Freescale 

Freescale SMeCm33ic59o3nductor, Inc.

DATA MANAGER

This block has five purposes:

- ID detection,

- Header recognition,

- Clock recovery,

- Output data and recovered clock on SPI port,

- End-of-Message detection.

Table 2 details some ROMEO2 features versus the bits DME and SOE values.

Table 2: ROMEO2 features versus DME and SOE

DME SOE

Timer

ROMEO2

kept in Run mode by

Microcontroller

woken-up by

0

External control by

STROBE pin

0

STROBE pin

1

Internal and external

control by STROBE pin

Raw data

0

External control by

STROBE pin

STROBE pin

Message Detection

word

1

1

Internal and external

control by STROBE pin

ID detection

and STROBE pin

Data clock

Table 3 details some ROMEO2 features versus DME values.

Table 3: ROMEO2 features versus DME

DME

SPI status

Data format

Output

0

Disabled

Bitstream

No clock

1

Master when

RESETB=1

Data bytes

Recovered clock

MOSI

-

MOSI

SCLK

CLOCK GENERATOR

Typical crystal frequency is 13.5775MHz for 868MHz band.

Figure 11: Clock generation diagram

XTAL

Reference

Phase Frequency Detector

÷ 11

÷ 64

UHF Oscillator

IF Filter Reference Clock

& Clock Recovery

© Motorola, Inc., 2002.

FMorOTMOoRrOeLIAnSfoErMmICaOtNioDnUCOTnORTShPisROPDroUdCuTSct,

Go to: www8.freescale.com

revision 7.0, 5 February 2002

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