¡ Semiconductor
MSM7586-01/03
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(5) CRC4 (Tone Generator Operation Mode and Frequency Settings)
B7: ........................... Selection of DTMF signal and other tones
(S tone, F tone, R tone, etc.) 0: Other tones 1: DTMF tones
B6: ........................... Transmission side tone transmit
0: Voice signal transmit 1: Tone transmit
B5: ........................... Receive side tone output pin selection
0: VFRO output 1: SAO output
B4, B3, B2, B1, B0: . Tone frequency setting (refer to Table 9)
Table 9: Tone Generator Frequency Settings
(a) When B7 = 1 (DTMF Tones)
(b) When B7 = 0 (Outside of DTMF Tones)
B4
B3
B2
B1
B0
Description
0
0
0
0
0
2730 Hz/2500 Hz 8 Hz Wamble
0
0
0
0
1
2000 Hz/2667 Hz 8 Hz Wamble
0
0
0
1
0
1000 Hz/1333 Hz 8 Hz Wamble
0
0
0
1
1
—
0
0
1
0
0
—
0
0
1
0
1
—
0
0
1
1
0
—
0
0
1
1
1
—
0
1
0
0
0
—
0
1
0
0
1
400 Hz Single tone
0
1
0
1
0
—
0
1
0
1
1
—
0
1
1
0
0
—
0
1
1
0
1
—
0
1
1
1
0
—
0
1
1
1
1
1000 Hz Single tone
B4
B3
B2
B1
B0
Description
1
0
0
0
0
—
0
0
0
1
1300 Hz Single tone
0
0
1
0
1333 Hz Single tone
0
0
1
1
—
0
1
0
0
—
0
1
0
1
2000 Hz Single tone
0
1
1
0
—
0
1
1
1
—
1
0
0
0
—
1
0
0
1
—
1
0
1
0
—
1
0
1
1
—
1
1
0
0
2667 Hz Single tone
1
1
0
1
—
1
1
1
0
2730 Hz Single tone
1
1
1
1
—
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
B0
B1
B2
B3
B4
B5
B6
B7
0
TONE1
0
TONE2
0
0
0
0
0
DTMF/OT
HERS SEL
0
CRC4
Initial Value
TONE0
TONE
SEND
SAO/
VFRO
TONE4
TONE3
B4
B3
B2
B1
B0
Description
*
0
0
0
0
697 Hz + 1209 Hz
*
0
0
0
1
697 Hz + 1336 Hz
*
0
0
1
0
697 Hz + 1477 Hz
*
0
0
1
1
697 Hz + 1633 Hz
*
0
1
0
0
770 Hz + 1209 Hz
*
0
1
0
1
770 Hz + 1336 Hz
*
0
1
1
0
770 Hz + 1477 Hz
*
0
1
1
1
770 Hz + 1633 Hz
B4
B3
B2
B1
B0
Description
*
1
0
0
0
852 Hz + 1209 Hz
*
1
0
0
1
852 Hz + 1336 Hz
*
1
0
1
0
852 Hz + 1477 Hz
*
1
0
1
1
852 Hz + 1633 Hz
*
1
1
0
0
941 Hz + 1209 Hz
*
1
1
0
1
941 Hz + 1336 Hz
*
1
1
1
0
941 Hz + 1477 Hz
*
1
1
1
1
941 Hz + 1633 Hz