參數(shù)資料
型號： S1C88816D
元件分類： 微控制器/微處理器
英文描述： 8-BIT, MROM, 8.2 MHz, MICROCONTROLLER, UUC164
封裝： DIE-164
文件頁數(shù)： 25/173頁
文件大?。?/td> 1411K
代理商： S1C88816D
112
EPSON
S1C88816 TECHNICAL MANUAL
5 PERIPHERAL CIRCUITS AND THEIR OPERATION (Melody Generator)
s Setting the scale RAM
Each word in the scale RAM corresponds to the
word in the note RAM one to one and represents
the pitch of the note.
The address corresponding to a rest must have data
other than FFH. Writing 00H is recommended for
rests.
The melody generator supports two equal
temperament scales referencing to A4 = 440 Hz or
C4 = 256 Hz using a 32.768 kHz (fOSC1) as the
reference signal frequency and either one can be
selected.
The specifiable scale range is as follows:
1) Equal temperament scale referencing to A4 = 440 Hz
C4 (262.144 Hz) to G6 (1560.381 Hz)
2) Equal temperament scale referencing to C4 = 256 Hz
C4 (256 Hz) to C7# (2184.533 Hz)
The absolute error from the actual frequency is less
than 1% for all pitches.
Note: Be aware that fluctuation of the oscillation
frequency affects the pitch when CR
oscillation is selected for the OSC1
oscillation circuit.
Tables 5.13.2.2 and 5.13.2.3 list the output
frequencies and the specified value for the equal
temperament scales referencing to A4 = 440 Hz and
C4 = 256 Hz, respectively.
Table 5.13.2.2 Equal temperament scale
referencing to A4 = 440 Hz
Table 5.13.2.3 Equal temperament scale
referencing to C4 = 256 Hz
Pitch
C4
C4#
D4
D4#
E4
F4
F4#
G4
G4#
A4
A4#
B4
C5
C5#
D5
D5#
E5
F5
F5#
G5
G5#
A5
A5#
B5
C6
C6#
D6
D6#
E6
F6
F6#
G6
D7
0
1
D6
0
1
0
1
D5
0
1
0
1
0
1
0
D4
0
1
0
1
0
1
0
1
0
1
0
1
0
1
D3
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
D2
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
D1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
D0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
HEX
0A
18
27
33
3F
48
55
5F
66
71
79
81
89
8E
94
9D
A3
A6
AD
B0
B7
BA
BE
C2
C7
CB
CC
D1
D2
D7
D8
DA
Division
ratio
1/250
1/236
1/223
1/211
1/199
1/188
1/177
1/167
1/158
1/149
1/141
1/133
1/125
1/118
1/112
1/105
1/99
1/94
1/89
1/84
1/79
1/74
1/70
1/66
1/63
1/59
1/56
1/53
1/50
1/47
1/44
1/42
Output
frequency
262.144
277.695
293.883
310.597
329.327
348.596
370.260
392.431
414.785
439.839
464.794
492.752
524.288
555.390
585.143
624.152
661.980
697.191
736.360
780.190
829.570
885.622
936.229
992.970
1040.254
1110.780
1170.286
1236.528
1310.720
1394.383
1489.455
1560.381
Pitch
C4
C4#
D4
D4#
E4
F4
F4#
G4
G4#
A4
A4#
B4
C5
C5#
D5
D5#
E5
F5
F5#
G5
G5#
A5
A5#
B5
C6
C6#
D6
D6#
E6
F6
F6#
G6
G6#
A6
A6#
B6
C7
C7#
D7
0
1
D6
0
1
0
1
D5
0
1
0
1
0
1
0
1
D4
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
D3
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
D2
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
D1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
D0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
HEX
04
12
20
2F
3B
44
51
5B
65
6C
74
7C
84
8D
92
98
9E
A4
AB
B1
B5
B8
BC
C0
C4
C8
CD
CE
D3
D4
D9
DB
DC
DE
E0
E2
E4
E6
Division
ratio
1/256
1/242
1/228
1/215
1/203
1/192
1/181
1/171
1/161
1/152
1/144
1/136
1/128
1/121
1/114
1/108
1/102
1/96
1/91
1/85
1/81
1/76
1/72
1/68
1/64
1/60
1/57
1/54
1/51
1/48
1/45
1/43
1/40
1/38
1/36
1/34
1/32
1/30
Output
frequency
256.000
270.810
287.439
304.819
322.837
341.333
362.077
383.251
407.056
431.158
455.111
481.882
512.000
541.620
574.877
606.815
642.510
682.667
720.176
771.012
809.086
862.316
910.222
963.765
1024.000
1092.267
1149.754
1213.630
1285.020
1365.333
1456.356
1524.093
1638.400
1724.632
1820.444
1927.529
2048.000
2184.533
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參數(shù)描述
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