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AMBE-3000F™ Vocoder Chip Users Manual

Version 3.4, April, 2014

Dat

a and Configuration Packets

PKT_ECMODE Response Field - Format

Field Identifier Response Field Data

1 Byte 1 Byte

0x05

0x00

(anything different indicates error)

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.

Note: DCMODE_IN will retain its value until it is changed.

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 1 Byte

0x06

0x00

(anything different indicates error)

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

(Subject to Change) Page 63

DVSI CONFIDENTIAL PROPRIETARY

1 2 ... 68 69 70 71 72 73 74 75 76 77 78 ... 110 111

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