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參數資料
| 型號： | W52904 |
| 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： | 12 SEC, SPEECH SYNTHESIZER, UUC18 |
| 文件頁數： | 16/40頁 |
| 文件大小： | 190K |
| 代理商： | W52904 |
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W529XX Application Note
- 16 -
FREQ1
POI:
LD MODE1, 0x00
LD MODE2, 0x87
END
; IO group 0 selected
; IO1 - IO3 -> LED, IO4 - IO7 -> INPUT, IO8 -> STOP
port:
MV R2, IPORT
JP case1 @R2.3=1
JP case2 @R2.5=1
END
; To move port status into register R2
; If bit3 of R2 register is equal to 1, jump to case1 voice group.
; If bit5 of R2 register is equal to 1, jump to case2 voice group.
Only those bits that are declared as INPUT pins can be acquired by the "MV reg, IPORT" command. Others
bits, which are not INPUT pins, are masked by zeros. For example, the above program selects IO group 0 and
chooses IO4 - IO7 as the INPUT pins. Assuming that the status of 4 external bits is "1101", after completion of
the command "MV R2, IPORT", R2 holds the result of 0
1101
000(B).
8. SYMBOLIC COMPILER
In order to reduce the workload of the *.out programming for the W529XX, a symbolic compiler has been
designed. This accepts not only the commonly used group numbers, but also the symbolic labels that are
adopted in most commercial
μ
P compilers.
9. DIRECT TRIGGER
The W529XX provides a total of 4 trigger inputs to interface directly with the outside world. After debouncing,
the W529XX responds to each edge of a valid trigger with a voice group, provided that the associated enable
flag of that particular edge has been previously set. The triggered input then starts to execute the voice group by
overwriting current operations, if any.
10. D/A CONVERTER
When a voice GO instruction is executed, the D/A converter is activated until an "END" or "PSAVE" instruction
is encountered. The W529XX provides a unique instruction "PSAVE" to turn off the D/A converter for power
W529xx
IO5
1
0
1
1
LED
LED
LED
STOP
IO1
IO2
IO3
IO4
IO6
IO7
IO8
PORT
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