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AMBE-3000F™ Vocoder Chip Users Manual
Version 3.4, April, 2014
Dat
a and Configuration Packets
A
n easy way to verify the AMBE-3000™ Vocoder Chip is running and ready to process data is to check for the output of the
READY packet. However, in order to prove the communication to the AMBE-3000™ Vocoder Chip is operating properly it is
best to send a packet to the chip and verify the AMBE-3000™ Vocoder Chip returns the expected value. Two good known
packets to send are the PKT_PRODID and PKT_VERSTRING. These two packets have known return values and can easily
be compared to validate proper operation.
PKT_PRODID
0x61 0x00 0x01 0x00 0x30
Response Example:
0x61 0x00 0x0E 0x00 0x30 0x41 0x4D 0x42 0x45 0x33 0x30 0x30 0x30 0x53 0x41
0x54 0x46 0x00
PKT_PRODID Field - Packet Format
Field Identifier Control Field Data
1 Byte 0 Byte
0x30 No Data Needed
Table 67 PKT_PRODID Field
PKT_PRODID Response field (11 byte) this field is a null-terminated string that contains the product identification for
example “AMBE3000”
PKT_PRODID Response Field - Format
Field Identifier Response Field Data
1 Byte varies <= 16 Bytes
0x30 Product ID Data
Table 68 PKT_PRODID Response Field
PKT_VERSTRING field (1 byte total) this field will cause the AMBE-3000F™ Vocoder Chip to respond with a string that
contains the product version number.
PKT_VERSTRING
0x61 0x00 0x01 0x00 0x31
PKT_VERSTRING Field - Packet Format
Field Identifier Control Field Data
1 Byte 0 Byte
0x31 No Data Needed
Table 69 PKT_VERSTRING Field
PKT_VERSTRING Response field (n + 2 bytes) this field is a null-terminated string that contains the product version number
for example
“V100.E100.XXXX.C106.G514.R007.A0030608.C0020208”
Where the value after the “R” indicates the software release. For more detailed information on software modifications see
Section IC Chip Software Errata.
(Subject to Change) Page 71
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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