MC33592 datasheet(7/28 Pages) NXP

7 / 28 page

DATA MANAGER

MOTOROLA

MC33592 Technical Data

Figure 9 : Telegrams with tone

RECEIVER START-UP DELAY

A settling time (1ms typ.) is required when entering into Wait mode. figure 10.

Figure 10 : Wait usable window

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

External control by

STROBE pin

Raw data

Internal and external

control by STROBE pin

External control by

STROBE pin

Message Detection

word

Internal and external

control by STROBE pin

ID detection

and STROBE pin

Data clock

Tone

Header

Data

EOM

Data

DME=1, HE=1

RF signal

SPI output

DME=1, HE=0

Data

EOM

Data

RF signal

SPI output

Tone

Tone detected

Run

Sleep

Settling

time

ID detected

Sleep

Run

Freescale Semiconductor, Inc.

For More Information On This Product,

Go to: www.freescale.com

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