ISD-T360 ETC [List of Unclassifed Manufacturers], ISD-T360 Datasheet - Page 64

• Manufacturer Part Number: ISD-T360
• Description: VoiceDSP Digital Speech Processor with Master/Slave, Full-Duplex Speakerphone, Multiple Flash and ARAM/DRAM Support
• Manufacturer: ETC [List of Unclassifed Manufacturers]

2.5
The commands are listed in alphabetical order.
The execution time for all commands, when specified, includes the time required for the microcontrol-
ler to retrieve the return value, where appropriate.
The execution time does not include the protocol timing overhead, i.e., the execution times are mea-
sured from the moment that the command is detected as valid until the command is fully executed.
NOTE:
CCIO
Configures the voice sample paths in various states. It should be used to change the default VoiceDSP
processor configuration. It is relevant only when two codecs are used and speakerphonr is connect-
ed.
The config_value parameter is encoded as follows:
Bit 0
Loopback control.
Bit 1
Codec input control.
Bits 2–3
Codec output control.
2-24
0
1
0
1
00
01
10
11
COMMAND DESCRIPTION
Each command description includes an example application of the command. The examples show the
opcode issued by the microcontroller and the response returned by the VoiceDSP processor. For com-
mands which require a return value from the processor, the start of the return value is indicated by a thick
vertical line.
Loopback disabled (default).
Loopback enabled. In the RECORD state, the input samples are echoed back, un-
changed (i.e., no volume control), to the same codec.
Input is received via the line codec (default).
Input is received via the speakerphone codec.
In PLAY, IDLE, SYNTHESIS and TONE_GENERATE states, output is to both codecs. In
RECORD state, output is to the non-input codec (no volume control). If the loopback
control bit is set, output in RECORD state is to both codecs as well (default).
Output in all states is to the line codec.
Output in all states is to the speakerphone codec.
Output in all states is to both codecs.
Configure Codec I/O config_value
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