Ack Packet Bytes 6 & 7 (Cmd); Response Packets; Channel Response Packet; Table 44 Cmd Parameter - Digital Voice Systems Net-2000 User Manual

Net-2000™ Voice Codec Unit
User's Manual
Ack Packet Bytes 6 & 7 (cmd)
The cmd element is used to indicate the packet type being acknowledged. Since Reset packets are
the only packets acknowledged this value is always zero.
cmd parameter
Packet Type Ack'ed
Reset

Table 44 cmd parameter

Response Packets

Channel Response Packet

The Net-2000™ VCU transmit encoder data in Channel response packets (Table 45 Channel
Response Packet).
Channel Response Packet
Bytes
(msb-lsb)
0 - 1
2 - 3
4 - 5
6 - 7
8 - 9
10 - 11
12 - 13
14 - 15
16 - 17
18 - 19
20 - 21
22 - 23
24 - 25
16 - 17
18 - 19
20 - 21
22 - 23
...
94 - 95

Table 45 Channel Response Packet

The cmode element of the packet should contain the status flags returned by the second invocation
of the encoder function ambe voice enc() as described in Table 46 cmode Bits for Channel Response
Packets. If the AMBE DTMF FRAME FLAG is set in the status flags output by the encoder, the
tone.idx and tone.amp elements should be set to the tone index and amplitude of the tone.
Otherwise, tone.idx should be set to AMBE INVALID TONE and tone.amp should be set to zero.
DVSI Confidential Proprietary
Byte 6
7 6 5 4 3 2 1 0
0 0 0 0 0 0 0 0
Bit
7 6 5 4 3 2 1 0
0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0
x x x x x x x x
0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0
0 x 0 0 0 0 0 0
0 0 0 0 0 0 0 0
x 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0
0 0 0 0 x x x x
x x x x x x x x
x x x x x x x x
x x x x x x x x
...
x x x x x x x x x
Section 3 – Net-2000™ VCU Control
Byte 7
7 6 5 4 3 2 1 0
0 0 0 0 0 0 0 0
Bit
7 6 5 4 3 2 1 0
0 1 1 0 0 0 0 0
0 0 0 0 0 0 1 1
x x x x x x x x
1 1 0 0 0 x x x
0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0
1 0 x x x x x x
0 x x x x x x x
1 0 x x x x x x
0 0 0 x 0 0 x x
x x x x x x x x
x x x x x x x x
x x x x x x x x
...
x x x x x x x
Hex Value
0x0000
Parameter Name
len
type
seq
rate [0]
rate [1]
rate [2]
rate [3]
rate [4]
rate [5]
cmode
tone.idx
tone.amp
ws
format
channel [0-1]
channel [2-3]
channel [4-5]
...
channel [78-79]
Page 48