ml7033 Oki Semiconductor, ml7033 Datasheet - Page 37

• Manufacturer Part Number: ml7033
• Description: Dual-channel Line Card Codec
• Manufacturer: Oki Semiconductor

CR9-B0, CR10-B7 to B0 …CH1 Tone Generator 1 Output Frequency Select
1 Semiconductor
Frequency
1000
1010
2000
3000
3390
3400
(Hz)
300
310
320
400
410
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Table 13 Tone Generator Frequency Setting (CH1RING bit = “0”)
When the CH1RING (CR11-B3) bit is cleared (“0”), these 9 bits determine the output
frequency of tone generator 1 on channel 1 to a value between 300 and 3400 Hz at 10Hz
intervals. A sample list of frequencies is shown in Table 13. The value programmed into
this field is calculated based on the desired frequency using the following equation.
Binary data for CR9-B0, CR10-B7 to B0
= (Output Frequency [Hz])/10
The following is an example of how to program this field when the intended frequency is
1500 Hz;
Ex) (Output Frequency [Hz])/10 = 1500/10 = 150d = 10010110b
Note that the operations are not guaranteed when these bits define a frequency out of a band
between 300 and 3400 Hz.
decimal
100
101
200
300
339
340
30
31
32
40
41
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Bits to set in CR9-B0, CR10-B7 to B0 = (0,1,0,0,1,0,1,1,0)
0C8h
12Ch
01Eh
01Fh
020h
028h
029h
064h
065h
153h
154h
hex
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:
:
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CR9
B0
0
0
0
0
0
0
0
0
1
1
1
:
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B7
0
0
0
0
0
0
0
1
0
0
0
:
:
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:
B6
0
0
0
0
0
1
1
1
0
1
1
:
:
:
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:
B5
0
0
1
1
1
1
1
0
1
0
0
:
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:
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:
B4
1
1
0
0
0
0
0
0
0
1
1
:
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CR10
B3
1
1
0
1
1
0
0
1
1
0
0
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B2
1
1
0
0
0
1
1
0
1
0
1
:
:
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B1
1
1
0
0
0
0
0
0
0
1
0
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:
:
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FEDL7033-02
B0
0
1
0
0
1
0
1
0
0
1
0
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ML7033
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