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AMBE-3000F™ Vocoder Chip Users Manual
Version 3.4, April, 2014
Dat
a and Configuration Packets
Options for PKT_INIT Control Field Data
Description Value
Encoder Initialized 0x1
Decoder Initialized 0x2
Echo Canceller Initialized 0x4
Encoder and Decoder Initialized 0x3
Encoder, Decoder and Echo Canceller Initialized 0x7
Table 48 PKT_INIT Field - Data
PKT_INIT Response field (1 byte total) indicated receipt of encoder and/or decoder initialization.
PKT_INIT Response Field - Format
Field Identifier Response Field Data
1 Byte 1 Byte
0x0B
0x00
(anything different indicates error)
Table 49 PKT_INIT Response Field Format
PKT_LOWPOWER field (2 bytes)
Tells the AMBE-3000F™ Vocoder Chip to enable or disable low-power mode. The AMBE-3000F™ Vocoder Chip will go
into a mode, which conserves power, when no voice packets are being processed. By default, low power mode is disabled.
After a LOWPOWER packet is received, the chip uses the least power possible by entering standby mode whenever all of the
following is true:
the encoder is not running,
the decoder is not running,
a packet is not being received and a packet is not being transmitted.
PKT_LOWPOWER Field - Format
Field Identifier Control Field Data
1 Byte 1 Byte
0x10 Table 51 PKT_LOWPOWER Field Settings
Table 50 PKT_LOWPOWER Field Format
Bit 0 of byte 1 enables and disables low power mode.
Options for PKT_LOWPOWER Field
Description Value
Low Power Mode Disabled 0x0
Low Power Mode Enabled 0x1
Table 51 PKT_LOWPOWER Field Settings
PKT_LOWPOWER Response field (1 byte total) Indicates that the AMBE-3000F™ Vocoder Chip will enter standby
whenever it is idle.
PKT_LOWPOWER Response Field - Format
Field Identifier Response Field Data
(Subject to Change) Page 66
DVSI CONFIDENTIAL PROPRIETARY
- AMBE-3000F™ Vocoder Chip 1
- DVSI Confidential Proprietary 1
- (Subject to Change) Page v 5
- (Subject to Change) Page x 10
- 1 Product Introduction 11
- 1.3 Typical Applications 12
- 2 Hardware Information 13
- 2.2 Package Details 14
- (Subject to Change) Page 5 15
- 2.3 Pin Assignment Layouts 16
- A B C D E F G H J K L M N P 17
- (Subject to Change) Page 8 18
- (Subject to Change) Page 9 19
- 2.5 Pin Out Table 20
- PARITY_ENABLE 79 22
- Input Enable parity bit 22
- Table 1 Pinout List 26
- 2.7.1 External Clock Source 29
- 2.7.2 Crystal Oscillator 29
- Table 7 Voltage Supply Pins 32
- 3.6 Reset Behavior 33
- Figure 11 TX_RDY after Reset 34
- Figure 12 Output Levels 34
- 3.8 Power-Down Sequencing: 35
- 3.9 Low Power Modes 35
- 3.9.1 Run State 36
- 3.9.2 Idle State 36
- 3.9.3 Standby State 36
- 3.9.4 Halt State 36
- 3.9.5 Power Modes 37
- 4.2 Interface Selection 40
- 4.4 Vocoder State 41
- Figure 18 Typical Echo Path 43
- Table 11 Companding Control 44
- 5 I/O Management 45
- Table 13 ECMODE_IN Flags 46
- Table 14 ECMODE_OUT FLAGS 46
- Table 15 DCMODE_IN Flags 47
- Table 16 DCMODE_OUT Flags 47
- 5.2 Codec mode 49
- “0 to Transition”“1” 51
- “Packet_ _Zone”Uncertainty 51
- “aperiodic packets” 52
- 5.3 Packet Mode 53
- Figure 29 Packet Mode 55
- 5.5 SPI Interface 56
- 5.6 UART Interface 57
- 5.7 McBSP Interface 58
- 5.8 Parallel Interface 61
- Table 26 PPT Timing 62
- Figure 36 Vocoder Front End 64
- Diagram 66
- 6.1 Overview 68
- 6.2 Codec Mode Operation 68
- 6.3 Packet Mode Operation 68
- 6.4 Packet Interfaces 69
- 6.5 Packet Format 69
- 6.5.3 TYPE (1 byte) 70
- 6.5.4 Packet Fields 70
- Table 59 PKT_CODECSTOP Field 78
- Table 61 PKT_CHANFMT Field 79
- samples dcmode 80
- Table 64 PKT_SPCHFMT Field 80
- 0x54 0x46 0x00 81
- Table 71 PKT_READY Field 82
- Table 72 PKT_HALT Field 82
- Table 73 PKT_RESET Field 82
- 6.7.1 Speech Packet Fields 89
- Table 100 CMODE Field Format 90
- Table 103 TONE Field Format 90
- 6.11 Example Packets 94
- 7 Appendices 98
- Table 115 Rate Index Numbers 100
- 8 Support 103
- Digital Voice Systems, Inc 104
- 10 IC Chip Software Errata 107
- Release 007 09/10/2009 108
- Release 014 08/31/2012 108
- 11 History of Revisions 109
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