Abov MC97F60128 User Manual

219
MC97F60128
ABOV Semiconductor Co., Ltd.
11.9 Buzzer Driver
11.9.1 Overview
The Buzzer consists of 6 bit counter, buzzer data register (BUZDR) and buzzer control register (BUZCR). The Square
Wave (122Hz~62.5kHz @fBUZ=1MHz) is outputted through P46/SEG35/BUZO pin. The buzzer data register (BUZDR)
BUZDR[5:0] controls the bsuzzer frequency (look at the following expression) and BUZDIV[1:0] selects fBUZ divided
by DIV block. In buzzer control register (BUZCR), BUCK[2:0] selects source clock divided by prescaler.
1)(BUZDR DIV 2
f
(Hz)f
BUZ
BUZO


(DIV = 8, 16, 32 and 64, BUZDR = 0 ~ 63)
BUZDR
[5:0]
BUZDR
[7:6]=00
fbuz/8
BUZDR
[7:6]=01
fbuz/16
BUZDR
[7:6]=10
fbuz/32
BUZDR
[7:6]=11
fbuz/64
BUZDR
[5:0]
BUZDR
[7:6]=00
fbuz/8
BUZDR
[7:6]=01
fbuz/16
BUZDR
[7:6]=10
fbuz/32
BUZDR
[7:6]=11
fbuz/64
0
62.500
31.250
15.625
7.813
32
1.894
0.947
0.473
0.237
1
31.250
15.625
7.813
3.906
33
1.838
0.919
0.460
0.230
2
20.833
10.417
5.208
2.604
34
1.786
0.893
0.446
0.223
3
15.625
7.813
3.906
1.953
35
1.736
0.868
0.434
0.217
4
12.500
6.250
3.125
1.563
36
1.689
0.845
0.422
0.211
5
10.417
5.208
2.604
1.302
37
1.645
0.822
0.411
0.206
6
8.929
4.464
2.232
1.116
38
1.603
0.801
0.401
0.200
7
7.813
3.906
1.953
0.977
39
1.563
0.781
0.391
0.195
8
6.944
3.472
1.736
0.868
40
1.524
0.762
0.381
0.191
9
6.250
3.125
1.563
0.781
41
1.488
0.744
0.372
0.186
10
5.682
2.841
1.420
0.710
42
1.453
0.727
0.363
0.182
11
5.208
2.604
1.302
0.651
43
1.420
0.710
0.355
0.178
12
4.808
2.404
1.202
0.601
44
1.389
0.694
0.347
0.174
13
4.464
2.232
1.116
0.558
45
1.359
0.679
0.340
0.170
14
4.167
2.083
1.042
0.521
46
1.330
0.665
0.332
0.166
15
3.906
1.953
0.977
0.488
47
1.302
0.651
0.326
0.163
16
3.676
1.838
0.919
0.460
48
1.276
0.638
0.319
0.159
17
3.472
1.736
0.868
0.434
49
1.250
0.625
0.313
0.156
18
3.289
1.645
0.822
0.411
50
1.225
0.613
0.306
0.153
19
3.125
1.563
0.781
0.391
51
1.202
0.601
0.300
0.150
20
2.976
1.488
0.744
0.372
52
1.179
0.590
0.295
0.147
21
2.841
1.420
0.710
0.355
53
1.157
0.579
0.289
0.145
22
2.717
1.359
0.679
0.340
54
1.136
0.568
0.284
0.142
23
2.604
1.302
0.651
0.326
55
1.116
0.558
0.279
0.140
24
2.500
1.250
0.625
0.313
56
1.096
0.548
0.274
0.137
25
2.404
1.202
0.601
0.300
57
1.078
0.539
0.269
0.135
26
2.315
1.157
0.579
0.289
58
1.059
0.530
0.265
0.132
27
2.232
1.116
0.558
0.279
59
1.042
0.521
0.260
0.130
28
2.155
1.078
0.539
0.269
60
1.025
0.512
0.256
0.128
29
2.083
1.042
0.521
0.260
61
1.008
0.504
0.252
0.126
30
2.016
1.008
0.504
0.252
62
0.992
0.496
0.248
0.124
31
1.953
0.977
0.488
0.244
63
0.977
0.488
0.244
0.122
Table 11-15 Buzzer Frequency(fBUZ=1MHz, kHz unit)

Abov MC97F60128 Specifications

General

Brand	Abov
Model	MC97F60128
Category	Microcontrollers
Language	English