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AM79C32AVC Datasheet(PDF) 35 Page - Advanced Micro Devices

Part # AM79C32AVC
Description  Digital Subscriber Controller??(DSC?? Circuit
PDF  101 Pages
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Manufacturer  AMD [Advanced Micro Devices]
Direct Link  http://www.amd.com
Logo AMD - Advanced Micro Devices

AM79C32AVC Datasheet(HTML) 35 Page - Advanced Micro Devices

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Am79C30A/32A Data Sheet
35
Secondary Tone Ringer Frequency Register (STRF), Read/Write; Address = Indirect 6EH
STRF is a Read/Write register controlling the frequency of the secondary tone ringer. Hex codes 7F and 00 are re-
served and should not be used. The coefficients are defined in Table 37.
Table 37.
Frequencies for Secondary Tone Ringer
Counter
Value
Frequency
(Hz)
Counter
Value
Frequency
(Hz)
Counter
Value
Frequency
(Hz)
Counter
Value
Frequency
(Hz)
3F
Reserved
3B
727.3
D8
369.2
F7
247.4
1F
Reserved
9D
716.4
6C
366.4
FB
246.2
0F
12000.0
4E
705.9
36
363.6
FD
244.9
87
9600.0
27
695.7
1B
360.9
7E
243.7
43
8000.0
13
685.7
8D
358.2
BF
242.4
A1
6857.1
09
676.1
C6
355.6
5F
241.2
D0
6000.0
04
666.7
E3
352.9
2F
240.0
E8
5333.3
82
657.5
F1
350.4
97
238.8
F4
4800.0
41
648.7
78
347.8
CB
237.6
7A
4363.6
A0
640.0
3C
345.3
65
236.5
3D
4000.0
50
631.6
9E
342.9
32
235.3
1E
3692.3
A8
623.4
CF
340.4
99
234.2
8F
3428.6
D4
615.4
E7
338.0
CC
233.0
C7
3200.0
6A
607.6
73
335.7
66
231.9
63
3000.0
B5
600.0
39
333.3
B3
230.8
B1
2823.5
DA
592.6
9C
331.0
59
229.7
58
2666.7
6D
585.4
CE
328.8
AC
228.6
2C
2526.3
B6
578.3
67
326.5
56
227.5
16
2400.0
5B
571.4
33
324.3
2B
226.4
0B
2285.7
AD
564.7
19
322.2
15
225.4
05
2181.8
D6
558.1
8C
320.0
8A
224.3
02
2087.0
6B
551.7
46
317.9
C5
223.3
01
2000.0
35
545.5
A3
315.8
62
222.2
80
1920.0
9A
539.3
D1
313.7
31
221.2
40
1846.2
4D
533.3
68
311.7
18
220.2
20
1777.8
A6
527.5
B4
308.7
0C
219.2
10
1714.3
D3
521.7
5A
307.7
06
218.2
88
1655.2
69
516.1
2D
305.7
83
217.2
C4
1600.0
34
510.6
96
303.8
C1
216.2
E2
1548.4
1A
505.3
4B
301.9
E0
215.3
71
1500.0
0D
500.0
25
300.0
70
214.3
38
1454.6
86
494.9
12
298.1
B8
213.3
1C
1411.8
C3
489.8
89
296.3
5C
212.4
8E
1371.4
E1
484.9
44
294.5
AE
211.5
47
1333.3
F0
480.0
A2
292.7
57
210.5
23
1297.3
F8
475.3
51
290.9
AB
209.6
91
1263.2
7C
470.6
28
289.2
55
208.7
48
1230.8
BE
466.0
94
287.4
AA
207.8
A4
1200.0
DF
461.5
4A
285.7
D5
206.9
D2
1170.7
6F
457.1
A5
284.0
EA
206.0
E9
1142.9
B7
452.8
52
282.4
F5
205.1
74
1116.3
DB
448.6
A9
280.7
FA
204.3
3A
1090.9
ED
444.4
54
279.1
7D
203.4
1D
1066.7
F6
440.4
2A
277.5
3E
202.5
0E
1043.5
7B
436.4
95
275.9
9F
201.7
07
1021.3
BD
432.4
CA
274.3
4F
200.8
03
1000.0
5E
428.6
E5
272.7
A7
200.0
81
979.6
AF
424.8
72
271.2
53
199.2
C0
960.0
D7
421.1
B9
269.7
29
198.4
60
941.2
EB
417.4
DC
268.2
14
197.5
30
923.1
75
413.8
EE
266.7
0A
196.7
98
905.7
BA
410.3
77
265.2
85
195.9
4C
888.9
5D
406.8
BB
263.7
42
195.1
26
872.7
2E
403.4
DD
262.3
21
194.3
93
857.1
17
400.0
6E
260.9
90
193.6
49
842.1
8B
396.7
37
259.5
C8
192.8



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