msm7570l-01 Oki Semiconductor, msm7570l-01 Datasheet - Page 22

• Manufacturer Part Number: msm7570l-01
• Description: Multi-function Adpcm Codec Msm7570l-01/02multi-function Adpcm Codec
• Manufacturer: Oki Semiconductor

¡ Semiconductor
(5) CR4 (Tone genereator operating mode and frequency select)
B7 ... DTMF or other tones select; 0/Others, 1/DTMF
B6 ... Tone transmit enable (Transmit side); 0/Voice signal (transmit), 1/Tone transmit
B5 ... Tone output pin select (Receive side); 0/VFRO, 1/SAO+ and SAO–
B4, B3, B2, B1, B0 ... Tone frequency setting, referred to Table-5-1, 5-2, and 5-3.
(a) B7 = 1 (DTMF tone)
(b) B7 = 0 (Other tones)
<MSM7570L-01>
CR4
Initial Value
B4
B4
*
*
*
*
*
*
*
*
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
B3
B3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
B2
B2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
B1
DTMF/OTHERS
B1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
SEL
B7
0
B0
B0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
1k/1333 Hz, 16 Hz wamb.
800/667 Hz, 16 Hz wamb.
500/667 Hz,16 Hz wamb.
500/400 Hz,16 Hz wamb.
500/400 Hz, 8 Hz wamb.
800/1k Hz,16 Hz wamb.
800/1k Hz, 8 Hz wamb.
1000 Hz Single tone
1300 Hz Single tone
TONE
SEND
400 Hz Single tone
425 Hz Single tone
440 Hz Single tone
450 Hz Single tone
800 Hz Single tone
400 Hz,16 Hz wamb.
400 Hz,20 Hz wamb.
697 Hz + 1209 Hz
697 Hz + 1336 Hz
697 Hz + 1477 Hz
697 Hz + 1633 Hz
770 Hz + 1209 Hz
770 Hz + 1336 Hz
770 Hz + 1477 Hz
770 Hz + 1633 Hz
B6
0
Frequency
Frequency
VFRO
SAO/
B5
0
Table-5-2
Table-5-1
TONE4
B4
B4
B4
*
*
*
*
*
*
*
*
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
B3
B3
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
TONE3
B2
B3
B2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
B1
B1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
*Unrelated
TONE2
B2
B0
B0
0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
MSM7570L-01/02
2000 Hz Single tone
2042 Hz Single tone
2514 Hz Single tone
1333 Hz Single tone
2100 Hz Single tone
500 Hz Single tone
667 Hz Single tone
852 Hz + 1209 Hz
852 Hz + 1336 Hz
852 Hz + 1477 Hz
852 Hz + 1633 Hz
941 Hz + 1209 Hz
941 Hz + 1336 Hz
941 Hz + 1477 Hz
941 Hz + 1633 Hz
TONE1
B1
Frequency
Frequency
0
—
—
—
—
—
—
—
—
—
TONE0
B0
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0