Specifications
AMBE-3000F™ Vocoder Chip Users Manual
Version 3.4, April, 2014
Dat
a and Configuration Packets
PKT_RESET 0x33 none none I
Reset the device using hard configuration via
pins.
PKT_RESETSOFTCFG 0x34 6 none I Reset the device with software configuration.
PKT_GETCFG 0x36 none 3 I/O
Query for configuration pin state at power-up
or reset.
PKT_READCFG 0x37 none 3 I/O Query for current state of configuration pins.
PKT_PARITYMODE 0x3F 1 none I/O Enable (default) / disable parity fields
PKT_WRITE I2C 0x44 varies none I/O Writes to an IC
2
device such as a codec
PKT_CLRCODECRESET 0x46 none none I/O Sets the codec reset signal to Low
PKT_SETCODECRESET 0x47 none none I/O Sets the codec reset signal to High
PKT_DISCARDCODEC 0x48 2 none I/O Number of codec samples to discard
PKT_DELAYNUS 0x49 2 none I/O
Delays the next control field processing (in
microsecs)
PKT_DELAYNNS 0x4A 2 none I/O
Delays the next control field processing (in
nanosecs)
PKT_RTSTHRESH 0x4E 5 none I/O Sets the flow control thresholds
PKT_GAIN 0x4B 2 none I/O
Used to set Input gain and output gain to be
anywhere between +90 and -90 dB
Table 32 Control Packet Fields
PKT_CHANNEL0 field (1 bytes) indicates that subsequent control fields pertain to channel 0.
PKT_CHANNEL0 Field - Format
Field Identifier Control Field Data
1 Byte 0 Byte
0x40 No Data Needed
Table 33 PKT_CHANNEL(0) Field Format
PKT_CHANNEL0 Response Field - Format
Field Identifier Response Field Data
1 Byte 0 Byte
0x40 No Data Needed
Table 34 PKT_CHANNEL(0) Response Field Format
PKT_ECMODE field (3 bytes total) contains the cmode flags to be passed to the encoder to enable/disable advanced features
of the encoder. Values set by the PKT_ECMODE field will override the state as set by the corresponding hardware
configuration pin.
Note: ECMODE_IN will retain its value until it is changed.
PKT_ECMODE Field - Format
Field Identifier Control Field Data
1 Byte 1 Word
0x05 Table 13 ECMODE_IN Flags
Table 35 PKT_ECMODE Field Format
PKT_ECMODE Response field (1 byte total) indicates encoder cmode flags were received.
(Subject to Change) Page 62
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