CMX882 View Datasheet(PDF) - CML Microsystems Plc

Part Name

Description

View to exact match

CMX882

FRS Signalling Processor

CML Microsystems Plc 

FRS Signalling Processor

CMX882

Notes:

1

2

Table 6 In-band Tones

Special / Information Tones

(5th bit = 0)

4 bit Code

Freq.

Dec Hex

(Hz)

0

0

No Tone

1

1 Custom Tone 0 P1.21

2

2 Custom Tone 1 P1.31

3

3 Custom Tone 2 P1.41

4

4 Custom Tone 3 P1.51

5

5

6

6

7

7

8

8

9

9

10 A

Reserved

11 B

12 C

13 D

14 E

15 F

Normal Tones

(5th bit = 1)

4 bit Code

Freq.

Dec Hex

(Hz)

0

0

1981

1

1

1124

2

2

1197

3

3

1275

4

4

1358

5

5

1446

6

6

1540

7

7

1640

8

8

1747

9

9

1860

10 A

1055

11 B

930

12 C

2247

13 D

14 E

991

21102

15 F

No Tone

Special tones 1-4 provide user programmable tone options for both transmit and receive modes

as set in the indicated Program register, for programming information see section 1.6.20.2.

Normal tone 14 is the repeat tone, this code must be used in transmit when the new code to be

sent is the same as the previous one. e.g. to send ‘333’ the sequence ‘3R3’ should be sent,

where ‘R’ is the repeat tone. When receiving Selcall tones the CMX882 will indicate the repeat

tone when it is received, it is up to the host to interpret this and decode tones accordingly.

 2004 CML Microsystems Plc

23

D/882/7

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