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参数资料
| 型号： | YMU757B-QZ |
| 元件分类： | 音频合成 |
| 英文描述： | TONE/MUSIC SYNTHESIZER, PQCC20 |
| 封装： | LEAD FREE, QFN-20 |
| 文件页数： | 5/43页 |
| 文件大小： | 990K |
| 代理商： | YMU757B-QZ |
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YMU757B
-13-
Rest data
Default: 0000h
Index
b15
b14
B13
b12
b11
b10
b9
b8
b7
b6
b5
b4
b3
b2
b1
b0
$00h
0
1
0
CH1
CH0
VCHE
TI3
TI2
TI1
TI0
VCH2
VCH1
VCH0
CH1 - CH0 : Part setting
Using CH1 or 0 bit, set the part for each rest.
CH[1:0]
Part
00b
0
01b
1
10b
2
11b
3
TI3 - TI0 : Interval setting
These bits are used to set the interval before the note and rest are processed next.
The interval "48" represents the time for the whole note.
The following table is exactly the same as that for the note data.
TI [3:0]
Interval
0h
3
1h
2
2h
3
3h
4
4h
6
5h
8
6h
9
7h
12
8h
18
9h
24
Ah
48
Bh
1
Ch
16
Dh
24
Eh
36
Fh
48
VCHE, VCH2 – VCH0 : Timbre change function
Although the maximum number of timbres that can be used simultaneously is four, the timbre can be changed during
sound reproduction by setting these bits. Set "1" for VCHE and use VCH2 to VCH0 to set the timbre No.. Then
starting with the note whose sound is to be generated next, the timbre for the part which has been set by using CH0
and 1 will be changed.
Change a tone after the pronunciation of a part to change stops completely.
The condition that pronunciation stops is not the condition that TK (pronunciation length) is finished, but the
condition that the time when releases of envelope is finished.
Be careful because strange sound momentarily is pronounced when you change a tone under the condition that
pronunciation doesn't stop completely.
If the timbre allotment is changed by using this function, the $30h register itself will be rewritten.
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