Net-2000™ Voice Codec Unit
User’s Manual
Page 31
DVSI Confidential Proprietary
Section 4 – Net-2000™ VCU Interface Protocol
Ack Packet
The Ack packet is used to acknowledge the Reset packet when the VCU is in File Mode.
Ack Packet
Bytes
(msb-lsb)
Bit
7 6 5 4 3 2 1 0
Bit
7 6 5 4 3 2 1 0
Parameter Name
0 – 1
0 0 0 0 0 0 0 0
0 0 0 0 1 0 0 0
Len
2 – 3
0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0
Type
H
e
a
d
e
r
4 – 5
x x x x x x x x
x x x x x x x x
Seq
6 – 7
0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0
Cmd
Table 18 Ack Packet
Ack packets have the following format described Table 18 and C-language data structure below:
struct ack_packet_t {
short len;
short type;
short seq;
short cmd;
};
The size of the Ack packet is eight bytes. The elements of the Ack packet are described in detail in
the following sections.