SYSTEM INTEGRATION MODULE
MC68332
4-14
USER’S MANUAL
Table 4-8 System Frequencies from 32.768–kHz Reference
To obtain clock frequency in kilohertz, find counter modulus in the left column, then multiply reference frequency by value
in appropriate prescaler cell.
Modulus
Prescaler
Y
[W:X] = 00
[W:X] = 01
[W:X] = 10
[W:X] = 11
000000
131
262
524
1049
000001
262
524
1049
2097
000010
393
786
1573
3146
000011
524
1049
2097
4194
000100
655
1311
2621
5243
000101
786
1573
3146
6291
000110
918
1835
3670
7340
000111
1049
2097
4194
8389
001000
1180
2359
4719
9437
001001
1311
2621
5243
10486
001010
1442
2884
5767
11534
001011
1573
3146
6291
12583
001100
1704
3408
6816
13631
001101
1835
3670
7340
14680
001110
1966
3932
7864
15729
001111
2097
4194
8389
16777
010000
2228
4456
8913
17826
010001
2359
4719
9437
18874
010010
2490
4981
9961
19923
010011
2621
5243
10486
20972
010100
2753
5505
11010
22020
010101
2884
5767
11534
23069
010110
3015
6029
12059
24117
010111
3146
6291
12583
25166
011000
3277
6554
13107
26214
011001
3408
6816
13631
27263
011010
3539
7078
14156
28312
011011
3670
7340
14680
29360
011100
3801
7602
15204
30409
011101
3932
7864
15729
31457
011110
4063
8126
16253
32506
011111
4194
8389
16777
33554
100000
4325
8651
17302
34603
100001
4456
8913
17826
35652
100010
4588
9175
18350
36700
100011
4719
9437
18874
37749
100100
4850
9699
19399
38797
100101
4981
9961
19923
39846
100110
5112
10224
20447
40894
100111
5243
10486
20972
41943
101000
5374
10748
21496
42992
101001
5505
11010
22020
44040
101010
5636
11272
22544
45089
101011
5767
11534
23069
46137
101100
5898
11796
23593
47186
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