DB829 datasheet(19/29 Pages) CMLMICRO

19 / 29 page

Baseband Signal Processor

MX829 PRELIMINARY INFORMATION

•COM Inc.

www.mxcom.com Tele: 800 638-5577 336 744-5050

Fax: 336 744-5054

Doc. # 20480160.004

4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA

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≤ 8-bit

period

IRQ

RXDATAF

DEMODIN

STATUS

COMMANDS

"SYNC"

FLAG

RXDATAF

READ

Rx DATA

(Byte 1)

READ

Rx DATA

(Byte 2)

Byte 1

Byte 2

RXDATAF

2 bytes of sync data + 2 bytes of MSK data

RXSYNCWORDF

or SYNTF

or SYNCF

Figure 10: Reception of 2 Bytes of Data

≈ 1-bit period

≤ 8-bit

period

8-bit period

IRQ

TXDATAF

MSK/DTMFOUT

READ

STATUS

WRITE

COMMANDS

WRITE

TX DATA

(Byte 3)

WRITE

TX DATA

(Byte 2)

WRITE

TX DATA

(Byte 1)

and

ENABLE

TXIDLEM

ENABLE

TX and

TXDATAM

3 bytes of MSK data + 1 hang bit

TXIDLEF

IDLEF

DATAF

Byte 1

Byte 2

Byte 3

DATAF

IDLEF

8-bit period

Figure 11: Transmission of 3 Bytes of Data

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