AMBE2000 ETC, AMBE2000 Datasheet - Page 32

• Manufacturer Part Number: AMBE2000
• Description: VOCODER CHIP
• Manufacturer: ETC

To deactivate the Digit Detect/Genetrate function, set the DTMF Code to 0xff. Dial, ring and busy tones are standard North
American call progress tones.
DTMF Amplitude
The DTMF Amplitude runs from 3 to –60 dBm0. This value is a signed bite (example: 0x03 = 3, 0x00 = 0, 0xC4 = -60).
5.3.7 Formatted Output : Word 11 :Control Word 2
Rate Information Selector (RIS) :
This field is used to indicate which part of the device is affected by words 2-6, the rate control words.
Bit 15
Table 5-N Control Word 2 Format
14
Decoder Output Volume Control
13
Table 5-O Rate Information Selection Codes
12
Table 5-M DTMF Codes for Digit Detect/ Generate
11
Confidential Proprietary, Subject to Change
Control_Word 2 – 16-bits (See Table 1-A)
0x0
0x1
0x2
0x3
value
10
User’s Manual Version 3.0
Encoder and Decoder
Encoder only
Decoder only
Neither Encoder nor Decoder
DTMF Code
Visit us at
9
0x80
0x84
0x88
0x81
0x85
0x89
0x82
0x86
0x8A
0x87
0x83
0x8B
0x8C
0x8D
0x8E
0x8F
0xff
Area Controlled
8
page 32
www.dvsinc.com
Unused
DTMF Digit
7
0
deactivate
#
A
B
C
D
1
2
3
4
5
6
7
8
9
0
*
Unused
6
0
Unused
5
0
Unused
4
0
SL
3
EC
2
1
RIS
0