Specifications

AMBE-3000™ Vocoder Chip Users Manual
Version 2.8, August, 2011
Dat
a and Configuration Packets
1 Byte 0 Byte
0x05 No Data Needed
Table 36 PKT_ECMODE Field Response Format
PKT_DCMODE field (3 bytes total) contains the cmode flags to be passed to the decoder to enable/disable advanced features
of the decoder. Values set by the PKT_DCMODE field will override the state as set by the corresponding hardware
configuration pin.
PKT_DCMODE Field - Format
Field Identifier Control Field Data
1 Byte 1 Word
0x06 Table 15 DCMODE_IN Flags
Table 37 PKT_DCMODE Field Format
PKT_DCMODE field (1 byte total) indicates decoder cmode flags were received.
PKT_DCMODE Response Field - Format
Field Identifier Response Field Data
1 Byte 0 Byte
0x06 No Data Needed
Table 38 PKT_DCMODE Response Field Format
PKT_COMPAND field (2 bytes total) Enables/Disables the use of companded data and allows for selection or either a-law or
µ-law companding.
PKT_COMPAND Field - Format
Field Identifier Control Field Data
1 Byte 1 Byte
0x32 Table 40 PKT_COMPAND Field Options
Table 39 PKT_COMPAND Field Format
Options for PKT_COMPAND Field
Description Value
Bit 1 Bit 0
Select µ-law companding 0 1
Select a-law companding 1 1
Companding Disabled X 0
Table 40 PKT_COMPAND Field Options
PKT_COMPAND Response field (1 byte total) indicates compand command was received.
PKT_COMPAND Response Field - Format
Field Identifier Response Field Data
1 Byte 0 Byte
0x32 No Data Needed
(Subject to Change) Page 56
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