參數(shù)資料
型號(hào)： MSM6650Family
廠商： OKI SEMICONDUCTOR CO., LTD.
英文描述： Voice Synthesis IC,(話音合成芯片)
中文描述： 語(yǔ)音合成芯片，（話音合成芯片）
文件頁(yè)數(shù)： 24/124頁(yè)
文件大?。?/td> 694K
代理商： MSM6650FAMILY
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Semiconductor
MSM6650 Family
4. OPTION(S)
In standalone mode the XT/
CR
pin can be used to select the oscillation circuit. If this pin is set to "H"
level, the circuit is in ceramic oscillation, conversely, if set to "L" level, the circuit is in RC oscillation.
In the case of RC oscillation, however, a 32 kHz sampling frequency cannot be used.
An option to move to standby mode can be selected when rewriting ROM data.
5. STANDALONE MODE
In standalone mode, the SW input interface function and the random playback function can be used.
5.1 SW Input Interface
With the SW input interface, voice synthesis starts when SW3-SW0 pins have changed. To prevent
chattering, the address is captured 16 ms (t
CHA
) after SW3-SW0 pins have changed. Voice synthesis
does not start if A2-A0 pins have changed.
Set the
RND
pin to "H" level if the random playback function is not used.
At power on, SW3-SW0 pins are all "L" level.
The SW input interface is effective when operating the MSM665X using a push-button switch.
Speech synthesis starts when an address is changed by pressing the push-button switch. If the push-
button switch is released during playback, then playback stops after the current phrase is completed.
Figure 5.1 SW Input Interface – Playback Timing
Figure 5.1 shows playback timing.
SW3-SW0 pins have chattering prevention circuits.
The pulse period at each pin requires 16ms (T
CHA
) or more.
If a push-button switch is continuously pushed, the same phrase is played repeatedly. Figure 5.2
shows repeated playback timing. Figure 5.3 shows timing when A2-A0 are changed during
playback.
A2 - A0 (I)
SW3 - SW1 (I) "L"
SW0 (I)
BUSY
(O)
AOUT (O)
t
w(SW)
Oscillation Startup
t
CHA
t
CHA
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