S3C44B0X

Manufacturer Part NumberS3C44B0X
DescriptionBGA
ManufacturerSamsung
S3C44B0X datasheets
 


Specifications of S3C44B0X

Date_code02+  
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
Page 241
242
Page 242
243
Page 243
244
Page 244
245
Page 245
246
Page 246
247
Page 247
248
Page 248
249
Page 249
250
Page 250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
Page 246/488

Download datasheet (3Mb)Embed
PrevNext
S3C2400 RISC MICROPROCESSOR
PWM TIMER
10
PWM TIMER
OVERVIEW
The S3C2400 has five 16-bit timers. The timer 0, 1, 2, 3 have PWM function (Pulse Width Modulation). Timer 4 has
an internal timer only with no output pins. Timer 0 has a dead-zone generator, which is used with a large current
device.
Timer 0 and timer 1 share an 8-bit prescaler, timers 2 & 3 share the other 8-bit prescaler. Each timer has a clock-
divider which has 5 different divided signals (1/2, 1/4, 1/8, 1/16, TCLK). Each timer block receives its own clock
signals from the clock-divider, which receives the clock from the corresponding 8-bit prescaler. The 8-bit prescaler is
programmable and divides the MUX output signal (PHCLK) according to the loading value which is stored in TCFG0
and TCFG1 registers.
The timer count buffer register (TCNTBn) has an initial value which is loaded into the down-counter when the timer is
enabled. The timer compare buffer register (TCMPBn) has an initial value which is loaded into the compare register to
be compared with the down-counter value. This double buffering feature of TCNTBn and TCMPBn makes the timer
generate a stable output when the frequency and duty ratio are changed.
Each timer has its own 16-bit down-counter which is driven by the timer clock. When the down-counter reaches zero,
the timer interrupt request is generated to inform the CPU that the timer operation has been completed. When the
timer counter reaches zero, the value of corresponding TCNTBn is automatically loaded into the down-counter to
continue the next operation. However, if the timer stops, for example, by clearing the timer enable bit of TCONn
during the timer running mode, the value of TCNTBn will not be reloaded into the counter.
The value of TCMPBn is used for PWM (pulse width modulation). The timer control logic changes the output level
when the down-counter value matches the value of the compare register in the timer control logic. Therefore, the
compare register determines the turn-on time (or turn-off time) of an PWM output.
FEATURES
— Five 16-bit timers
— Two 8-bit prescalers & Five 4-bit divider
— Programmable duty control of output waveform (PWM)
— Auto-reload mode or one-shot pulse mode
— Dead-zone generator
10-1