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參數資料
| 型號： | W52906 |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | 音頻合成 |
| 英文描述： | ADPCM/PCM Voice Synthesizer(ADPCM/PCM話音合成器) |
| 中文描述： | 30 SEC, SPEECH SYNTHESIZER, UUC18 |
| 文件頁數： | 8/40頁 |
| 文件大小： | 190K |
| 代理商： | W52906 |
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W529XX Application Note
- 8 -
1. POWER ON INITIALIZATION
The W529XX will automatically execute the POI (Power On Initialization) process upon power up or depression
of the RESET pin. The voice group dedicated for POI is allocated at "64".
Upon power up, the W529XX resets itself to initial values by internally generating a POR (Power On Reset)
pulse to start the POI process.
During the POI process, certain triggers can override to take over if the EN register is set to properly enable
those triggers. Take the following example (for reference only); after the MODE1 & MODE2 registers are set to
their appropriate values according to the customers' configuration, the EN register is set to enable the falling-
edge triggers of TG1 and TG2. Therefore, during the reproduction of voice segments, like Voice1, Voice2,
Voice3, and Voice4, triggers TG1F and TG2F may terminate the normal operation of the POI process and start
a new trigger later on.
See also "Register definition and control" for default settings during a power up.
2. GROUP NUMBER ALLOCATION
For direct trigger inputs, there are 8 voice groups allocated to four TG pins: voice groups 0, 2, 4, and 6 are for
falling edge triggers, and voice groups 1, 3, 5, and 7 are used for the rising edge triggers.
W52906
FREQ2
LED1
POI:
LD MODE1, 0x03
LD MODE2, 0xF2
LD EN, 0x03
LD OUTPUT, 0xC5
Voice1 + 2*Voice2 + 8*Voice3
JP EXIT @TG3_L
Voice4
;Enable TG1 and TG2 falling edge
EXIT:
END
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