V-Tec AT16/C5 Spezifikationen Seite 68

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Seitenansicht 67
Si2400
68 Rev. 1.3
Reset settings = 0000_0000
b
(0x00)
SE5 (DSP1). (SE8 = 0x02) Read Only Definition
BitD7D6D5D4D3D2D1D0
Name
DDAV TDET TONE
Type RR R
Bit Name Function
7 DDAV DSP Data Available.
6TDETTone Detected.
Indicates a TONE (any of type 0–25 below) has been detected.
0 = Not detected.
1=Detected.
5 Reserved Read returns zero.
4:0 TONE
Tone Type Detected.
When TDET goes high, TONE indicates which tone has been detected from the following:
TONE Tone Type Priority
00000–01111 DTMF 0–15 (DTMFE = 1)
1
See Table 23 on page 39 1
10000 Answer tone detected 2100 Hz (ANSE = 1)
2
2
10001 Bell 103 answer tone detected 2225 Hz (ANSE = 1) 2
10010 V.23 forward channel mark 1300 Hz (V23E = 1)
3
3
10011 V.23 backward channel mark 390 Hz (V23E = 1) 3
10100 User defined frequency 1 (USEN1 = 1)
4
4
10101 User defined frequency 2 (USEN1 = 1) 4
10110 Call progress filter A detected 6
10111 User defined frequency 3 (USEN2 = 1)
5
5
11000 User defined frequency 4 (USEN2 = 1) 5
11001 Call progress filter B detected 6
Notes:
1. SE6[0] (DTMFE) SE8
= 0x02.
2. SE6[1] (ANSE) SE8
= 0x02.
3. SE6[2] (V23E) SE8 = 0x02.
4. SE6[3] (USEN1) SE8
= 0x02.
5. SE6[4] (USEN2) SE8
= 0x02.
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