- 您現在的位置：買賣IC網 > PDF目錄363893 > W62410 (WINBOND ELECTRONICS CORP) A Digital Speech Signal Processor(數字語音信號處理器) PDF資料下載
參數資料
| 型號： | W62410 |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | 數字信號處理 |
| 英文描述： | A Digital Speech Signal Processor(數字語音信號處理器) |
| 中文描述： | 8-BIT, 24.576 MHz, OTHER DSP, PQFP100 |
| 封裝： | 14 X 20 MM, 2.75 MM HEIGHT, PLASTIC, QFP-100 |
| 文件頁數： | 30/147頁 |
| 文件大小： | 1932K |
| 代理商： | W62410 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁當前第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁第100頁第101頁第102頁第103頁第104頁第105頁第106頁第107頁第108頁第109頁第110頁第111頁第112頁第113頁第114頁第115頁第116頁第117頁第118頁第119頁第120頁第121頁第122頁第123頁第124頁第125頁第126頁第127頁第128頁第129頁第130頁第131頁第132頁第133頁第134頁第135頁第136頁第137頁第138頁第139頁第140頁第141頁第142頁第143頁第144頁第145頁第146頁第147頁
NO.:
W62410 API
VERSION:
A
PAGE
30
0.14 The MonitorLine command.
Description:
The
MonitorLine
command allows the host to monitor the telephone line for various telephony
signals like the presence of signals, call progress tones and incoming DTMF tones. Every 30 ms
the CHIPSET updates the status of the line monitor status register. By repeated sending of this
command, the host can have an accurate idea of the status of the telephone line at that moment.
The “C” return parameter becomes and stays “1” when there has been a continuous tone detected,
within the frequency band of 300 Hz to 720 Hz and exceeding the preset threshold (“continuous
tone coefficient” parameter). The “C” flag will only be set when at least “continuous tone time”
number of successive frames of 30 milliseconds have exceeded the threshold setting. If this
continuous tone stops, this flag will be immediately reset to “0”. The default number for
“continuous tone time” is 10. So the “C” flag will become high when at least 0.3 seconds of
continuous tone has been detected.
The “P” return parameter
becomes immediately “1” if a tone has been detected within the
frequency range of 300 Hz to 720 Hz and exceeded the preset threshold (“continuous tone
coefficient” parameter). This flag stays “1” as long as this tone exceeded the preset threshold,
otherwise it is immediately reset again.
The “V” return parameter is very similar to the “P” return parameter. The difference is that the
frequency range is now the full frequency range of 0 Hz to 4 kHz to detect the presence of tones
and the “V” flag will be set high when the “VAD threshold” has been exceeded.
The “D” return parameter becomes “1” as soon as one or more DTMF tones have been detected.
The DTMF code is stored in a 16 level deep FIFO buffer. Therefore, this flag stays high, as long
as there is DTMF data present in the FIFO buffer. Due to the FIFO buffer, it is not necessary for
the host to check the telephone line at a very rapid rate. The FIFO buffer takes care that no
DTMF codes will be lost (the DTMF codes are stored in chronological order). Each time the D
flag is set high the four bits of the DTMF field contains a valid DTMF code. This code is then
removed out of the FIFO buffer freeing up place for a new DTMF code to be received. The host
has nothing to do to manage the DTMF FIFO buffer. Everything is automatically handled by the
CHIPSET.
The “K” will be set high when there is currently a DTMF tone detected. This flag can be useful
when a detection of the end of a DTMF tone is required (like a key-release function). Be careful
that the detection of the DTMF tone has no relevance to the eventual DTMF codes already
residing inside the DTMF FIFO buffer of the CHIPSET.
The “W” return parameter is set high when a recording of an ICM approaches the end of the
maximum allowed recording time. See the
SetMaxLengthRecording
command for more
explanation of this feature.
The “I” and “F” return parameters are related to the CallerID support of the CHIPSET. If an
incoming CallerID has been decoded then the “I” flag is set high. However, it is possible that the
CallerID information has been badly decoded because of bad telephone line conditions. If so,
then the CRC inside the CallerID information will reflect this. If the calculated CRC by the
CHIPSET is different from the received CRC then the “F” flag will be set high to indicate a
potential corrupt CallerID message.
The “Vp” flag will be set high as long as there are voice prompts playing.
Some of the above return parameters can be very useful to decide if a telephone message has
been ended and thus to stop the recording.
Command
High Byte
MonitorLine
0
0
0
0
0
Returned value
High Byte
Status
V
p
K W I
F
Remarks:
V
p
= Will be set high when a voice prompt is playing. It will be reset to zero when the
voice prompt has finished playing.
K
= 1 bit, when set high a DTMF detection is in progress.
The above information is the exclusive intellectual property of Winbond Electronics and shall not be
disclosed, or reproduced without permission from Winbond.
Low byte
0
0
0
0
0
0
0
1
1
1
0
Low byte
0
0
V 0 C P D
DTMF
相關PDF資料 |
PDF描述 |
|---|---|
| W65C02S | Microprocessor |
| W65C02S6P-14 | Microprocessor |
| W65C02S6PL-14 | Microprocessor |
| W65C02S6Q-14 | Microprocessor |
| W65C02S8P-14 | Microprocessor |
相關代理商/技術參數 |
參數描述 |
|---|---|
| W624LS | 制造商:LUMINIS 制造商全稱:LUMINIS 功能描述:Post top mount |
| W6250ASX-1 | 功能描述:固態繼電器-工業安裝 90-280VAC/240AC RoHS:否 制造商:Crydom 控制電壓范圍:4 VDC to 32 VDC 負載電壓額定值:7 VDC to 72 VDC 負載電流額定值:160 A 觸點形式: 輸出設備:SSR 安裝風格:Panel |
| W6250DSX-1 | 功能描述:固態繼電器-工業安裝 3-32 VDC/240AC RoHS:否 制造商:Crydom 控制電壓范圍:4 VDC to 32 VDC 負載電壓額定值:7 VDC to 72 VDC 負載電流額定值:160 A 觸點形式: 輸出設備:SSR 安裝風格:Panel |
| W626 | 制造商:LUMINIS 制造商全稱:LUMINIS 功能描述:Post top mount |
| W626LS | 制造商:LUMINIS 制造商全稱:LUMINIS 功能描述:Post top mount |
發布緊急采購，3分鐘左右您將得到回復。