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參數資料
| 型號： | W58105 |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | 音頻合成 |
| 英文描述： | ADPCM Voice Synthesizer(ADPCM話音合成器) |
| 中文描述： | 20 SEC, SPEECH SYNTHESIZER, UUC16 |
| 文件頁數： | 5/41頁 |
| 文件大小： | 195K |
| 代理商： | W58105 |
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W581xx Design Guide
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5 -
In keypad matrix applications, TG1~TG4 function as the trigger inputs to initiate the software scan
routine. These inputs determine which key has been pressed by determining which row (TG1 ~ TG4)
and which column (Vss, STPA ~ STPE) has been connected.
The 24 key matrix does not require additional components and is shown below:
18
19
20
1
2
3
4
5
6
7
14
15
16
17
11
12
13
8
9
10
TG4
STPE/BUSY
STPD/FTEST
LED2/STPC
V
TG1
TG2
TG3
LED1
STPB
STPA
NC
SPK
VSS
DD
WRP
DATA
RDP
/RESET
/DISOTP
OSC
W58100
4. STPE/BUSY
This pin is configured as STPE or BUSY depending upon the program declaration of this pin. If this
pin is not declared as either STPE or BUSY then it will default to STPE in NORMAL mode and as
BUSY in CPU mode.
The BUSY signal goes high whenever a successful interrupt occurs, whether the interrupt comes from
POI, the micro-controller (CPU), or a trigger input. When an interrupt occurs, the BUSY signal goes
high and stays high until the end of the operation. i.e. after encountering an "END" instruction the
BUSY signal will be low.
5. STPD/FTEST
This pin is configured as a STPD output or as a frequency output test pin, FTEST, depending on the
program declaration of this pin.
After being declared as an FTEST pin at the beginning of the program, this pin will generate a
constant frequency output during playback. A counter can then be used to test this constant frequency
in order to check whether the frequency deviation of this code is normal or abnormal. The constant
frequency will be kept at 6K Hz, under the condition of the typical master frequency - for example, 3M
Hz.
6. OSC
A ring oscillator is used to generate the master frequency of about 3 MHz. This pin is connected with
an Rosc resistor to VDD providing a bias current for the ring oscillator.
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相關代理商/技術參數 |
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