ISD-T360SB Datasheet, PDF (71/109 Pages) List of Unclassifed Manufacturers – VoiceDSP Digital Speech Processor with Master/Slave, Full-Duplex Speakerphone, Multiple Flash and ARAM/DRAM Support

2—SOFTWARE
ISD-T360SB
ERR_TIMEOUT
Time-out error. Depending on the VoiceDSP processor’s state, more than 100 milliseconds elapsed be-
tween the arrival of two consecutive bytes (for commands that have parameters).
ERR_INVALID
Command can not be performed in current context.
Example
GEW
Byte sequence:
Description:
Microcontroller
1B
AA
AA
VoiceDSP
1B
00
02
Get the VoiceDSP processor error word (typically sent after GSW when EV_ERROR is
reported in the status word).
The VoiceDSP processor responds: ERR_OPCODE:
GI
Get Information item
Returns the 16-bit value specified by item from one of the internal registers of the VoiceDSP processor.
item may be one of the following:
0
The duration of the last detected DTMF tone, in 10 ms units. The return value is meaningful
only if DTMF detection is enabled, and the status word shows that a DTMF tone was de-
tected.
1
The duration of the last detected busy tone in 10 ms units.
2
The energy level of the samples in the last 10 ms.
3
The energy level of the samples, in the last 10 ms, that are in the frequency range de-
scribed in Figure 2-1. The return value is meaningful only if one of the tone detectors is
enabled (bits 0,1 of the detectors mask; see the description of SDET command).
The return value is unpredictable for any other value of item.
Example
GI 0
Byte sequence:
Description:
Microcontroller
25
VoiceDSP
25
Get the duration of the last detected DTMF tone.
The VoiceDSP processor responds: 60 ms.
00
AA
AA
00
00
06
ISD
2-31