MSM7732-01 OKI [OKI electronic componets], MSM7732-01 Datasheet - Page 21

• Manufacturer Part Number: MSM7732-01
• Description: Audio CODEC
• Manufacturer: OKI [OKI electronic componets]

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)
(b) B7 = 0 (Other tones)
OKI Semiconductor
CR4 (Tone generator operating mode and frequency select)
Initial Value
B4
B4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
*
*
*
*
*
*
*
*
CR4
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
O
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
DTMF/
thers 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
TONE
SEND
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
2730 Hz/2500 Hz
2000 Hz/2667 Hz
1000 Hz/1333 Hz
B6
0
8 Hz wamble
8 Hz wamble
8 Hz wamble
Frequency
Frequency
1000 Hz
400 Hz
440 Hz
480 Hz
667 Hz
800 Hz
—
—
—
—
—
—
—
VFRO
SAO/
B5
0
Table 5-1
Table 5-2
TONE4
B4
B4
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
*
*
*
*
*
*
*
*
B4
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
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
B3
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
TONE2
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
B2
0
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
Frequency
Frequency
1200 Hz
1300 Hz
1477 Hz
1633 Hz
2000 Hz
2100 Hz
2400 Hz
2500 Hz
2700 Hz
3000 Hz
B1
0
—
—
—
—
—
—
FEDL7732-01-10
MSM7732-01
*Undefined
TONE0
B0
0
21/29