参数资料
型号: YMU757
元件分类: 音频合成
英文描述: TONE/MUSIC SYNTHESIZER, PDSO20
封装: TSSOP-20
文件页数: 10/42页
文件大小: 701K
代理商: YMU757
YMU757
#
-
18-
Default:0000h
Index
b15
b14
b13
b12
b11
b10
b9
b8
b7
b6
b5
b4
b3
b2
b1
b0
$33h
0
C LKSEL
Thissetting setsthe clock frequency inputted through the CLK _Iterminal.
Be sure to execute thissetting before reproducing the melody.
Even ifclock ofwhich frequency isbeing inputted during resetting,itisOK.
CKSEL [2:0]
Clock frequency (MHz)
0h
2.688
1h
19.200
2h
19.680
3h
19.800
4h
8.400
5h
14.400
6h
27.821
7h
12.600
$34h
Interrupt control
Default:0000h
Index
b15
b14
b13
b12
b11
b10
b9
b8
b7
b6
b5
b4
b3
b2
b1
b0
$34h
0
IR Q E
IR Q
point
The musicalscore data istaken into FIFO which hasa capacity for32 data.Asthe soundsare reproduced,the data in
FIFO are processed and deleted.When the am ountofdata rem aining in FIFO becom eslessthan the IRQ pointsetvalue,
an interruptsignalisgenerated.Atthispoint,set"0"forIRQ E and write the continuing musicalscore data into FIFO .
Make sure thatthe written data exceedsthe IRQ point.Afterwriting the data,reset"1"forIRQ E and waituntilanother
interruptsignalisgenerated.
IRQ pointcan set32 waysfrom 0 (em pty)to 31 (1 data vacancy).
IRQ E isenable bit.Set“1” forenable.
$35h
Speaker volume control
$36h
FM volume control
$37h
Ear phone output volume control
Default:0000h
Index
b15
b14
b13
b12
b11
b10
b9
b8
b7
b6
b5
b4
b3
b2
b1
b0
$35-7h
0
V4
V3
V2
V1
V0
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