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MSM7732-01TB 数据表(PDF) 21 Page - OKI electronic componets |
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MSM7732-01TB 数据表(HTML) 21 Page - OKI electronic componets |
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21 / 29 page ![]() FEDL7732-01-10 OKI Semiconductor MSM7732-01 21/29 CR4 (Tone generator operating mode and frequency select) B7 B6 B5 B4 B3 B2 B1 B0 CR4 DTMF/ Others SEL TONE SEND SAO/ VFRO TONE4 TONE3 TONE2 TONE1 TONE0 Initial Value 0 0 0 0 0 0 0 0 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 B4, B3, B2, B1, B0 … Tone frequency setting, refer to Tables 5-1 and 5-2. (a) B7 = 1 (DTMF tones) Table 5-1 B4 B3 B2 B1 B0 Frequency B4 B3 B2 B1 B0 Frequency * 0 0 0 0 697 Hz + 1209 Hz * 1 0 0 0 852 Hz + 1209 Hz * 0 0 0 1 697 Hz + 1336 Hz * 1 0 0 1 852 Hz + 1336 Hz * 0 0 1 0 697 Hz + 1477 Hz * 1 0 1 0 852 Hz + 1477 Hz * 0 0 1 1 697 Hz + 1633 Hz * 1 0 1 1 852 Hz + 1633 Hz * 0 1 0 0 770 Hz + 1209 Hz * 1 1 0 0 941 Hz + 1209 Hz * 0 1 0 1 770 Hz + 1336 Hz * 1 1 0 1 941 Hz + 1336 Hz * 0 1 1 0 770 Hz + 1477 Hz * 1 1 1 0 941 Hz + 1477 Hz * 0 1 1 1 770 Hz + 1633 Hz * 1 1 1 1 941 Hz + 1633 Hz *Undefined (b) B7 = 0 (Other tones) Table 5-2 B4 B3 B2 B1 B0 Frequency B4 B3 B2 B1 B0 Frequency 0 0 0 0 0 2730 Hz/2500 Hz 8 Hz wamble 1 0 0 0 0 1200 Hz 0 0 0 0 1 2000 Hz/2667 Hz 8 Hz wamble 1 0 0 0 1 1300 Hz 0 0 0 1 0 1000 Hz/1333 Hz 8 Hz wamble 100 1 0 — 0 0 0 1 1 — 1 0 0 1 1 1477 Hz 0 0 1 0 0 — 1 0 1 0 0 1633 Hz 0 0 1 0 1 — 1 0 1 0 1 2000 Hz 0 0 1 1 0 — 1 0 1 1 0 2100 Hz 0 0 1 1 1 — 1 0 1 1 1 — 0 1 0 0 0 — 1 1 0 0 0 2400 Hz 0 1 0 0 1 400 Hz 1 1 0 0 1 — 0 1 0 1 0 440 Hz 1 1 0 1 0 2500 Hz 0 1 0 1 1 480 Hz 1 1 0 1 1 — 0 1 1 0 0 — 1 1 1 0 0 — 0 1 1 0 1 667 Hz 1 1 1 0 1 2700 Hz 0 1 1 1 0 800 Hz 1 1 1 1 0 — 0 1 1 1 1 1000 Hz 1 1 1 1 1 3000 Hz |
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