SITRONIX ST7529

ST
Sitronix
ST7529
32 Gray Scale Dot Matrix LCD Controller/Driver
1. INTRODUCTION
The ST7529 is a driver & controller LSI for 32 gray scale graphic dot-matrix liquid crystal display systems. It generates 255
Segment and 160 Common driver circuits. This chip is connected directly to a microprocessor, accepts Serial Peripheral
Interface (SPI), 8-bit/16-bit parallel or IIC display data and stores in an on-chip display data RAM. It performs display data
RAM read/write operation with no external operating clock to minimize power consumption. In addition, because it contains
power supply circuits necessary to drive liquid crystal, it is possible to make a display system with the fewest components.
2. FEATURES
Driver Output Circuits
On-chip Low Power Analog Circuit
−255 segment outputs / 160 common outputs
− On-chip oscillator circuit
−Maximum resolution is 255 x 160
− Voltage converter (x2, x3, x4, x5, x6, x7, x8)
Applicable Duty Ratios
− Voltage regulator
− Various partial display
− Voltage follower
− Partial window moving & data scrolling
(LCD bias: 1/5, 1/7, 1/9, 1/10, 1/11, 1/12, 1/13, 1/14)
Microprocessor Interface
Operating Voltage Range
− 8/16-bit parallel bi-directional interface with 6800-series
− Supply voltage
or 8080-series
(VDD, VDD1, VDD2, VDD3, VDD4, VDD5): 2.4 to 3.3V
−4-line serial interface (write only)
− LCD driving voltage (VLCD = V0 - VSS): 3.76 to 18.0V
−9 bit 3-line serial interface (write only)
Temperature Gradient Coefficient
On-chip Display Data RAM
− -0.130%/℃
− Capacity : 160 x 255 x 5bit = 204000bits (Max)
LCD driving voltage (EEPROM)
− To store contrast adjustment value for better display
Package Type
− Application for COG and TCP
ST7529
Ver 1.8
6800, 8080, 4-Line, 3-Line interface
1/85
2007/10/25
ST7529
3. Pad Arrangement
Chip Size :
16.550mm x 1.525mm
Pad pitch :
Com, Seg pad pitch: 43µm
IO pad pitch: 110µm
Test pin pad pitch: 75µm
Pad size :
Com, Seg pad size:
Pad No1~362 : 25µm (X) x 96µm (Y)
Pad No363~390 : 96µm (X) x 25µm (Y)
Pad No544~571 : 96µm (X) x 25µm (Y)
IO pad pad size: 90µm (X) x 40µm (Y)
Test pin pad size: 55µm (X) x 40µm (Y)
Bump Height: 17µm
Chip Thickness: 635µm
Ver 1.8
2/86
2007/10/25
ST7529
4.
Pad Center Coordinates
PAD No.
Ver 1.8
PIN Name
X
Y
PAD No.
PIN Name
X
Y
1
COM[28]
7917
683
39
COM[66]
6283
683
2
COM[29]
7874
683
40
COM[67]
6240
683
3
COM[30]
7831
683
41
COM[68]
6197
683
4
COM[31]
7788
683
42
COM[69]
6154
683
5
COM[32]
7745
683
43
COM[70]
6111
683
6
COM[33]
7702
683
44
COM[71]
6068
683
7
COM[34]
7659
683
45
COM[72]
6025
683
8
COM[35]
7616
683
46
COM[73]
5982
683
9
COM[36]
7573
683
47
COM[74]
5939
683
10
COM[37]
7530
683
48
COM[75]
5896
683
11
COM[38]
7487
683
49
COM[76]
5853
683
12
COM[39]
7444
683
50
COM[77]
5810
683
13
COM[40]
7401
683
51
COM[78]
5767
683
14
COM[41]
7358
683
52
COM[79]
5724
683
15
COM[42]
7315
683
53
(NC)
5526
683
16
COM[43]
7272
683
54
(NC)
5482
683
17
COM[44]
7229
683
55
(NC)
5440
683
18
COM[45]
7186
683
56
SEG[254]
5396
683
19
COM[46]
7143
683
57
SEG[253]
5354
683
20
COM[47]
7100
683
58
SEG[252]
5310
683
21
COM[48]
7057
683
59
SEG[251]
5268
683
22
COM[49]
7014
683
60
SEG[250]
5224
683
23
COM[50]
6971
683
61
SEG[249]
5182
683
24
COM[51]
6928
683
62
SEG[248]
5138
683
25
COM[52]
6885
683
63
SEG[247]
5096
683
26
COM[53]
6842
683
64
SEG[246]
5052
683
27
COM[54]
6799
683
65
SEG[245]
5010
683
28
COM[55]
6756
683
66
SEG[244]
4966
683
29
COM[56]
6713
683
67
SEG[243]
4924
683
30
COM[57]
6670
683
68
SEG[242]
4880
683
31
COM[58]
6627
683
69
SEG[241]
4838
683
32
COM[59]
6584
683
70
SEG[240]
4794
683
33
COM[60]
6541
683
71
SEG[239]
4752
683
34
COM[61]
6498
683
72
SEG[238]
4708
683
35
COM[62]
6455
683
73
SEG[237]
4666
683
36
COM[63]
6412
683
74
SEG[236]
4622
683
37
COM[64]
6369
683
75
SEG[235]
4580
683
38
COM[65]
6326
683
76
SEG[234]
4536
683
3/86
2007/10/25
ST7529
PAD No.
Ver 1.8
PIN Name
X
Y
PAD No.
PIN Name
X
Y
77
SEG[233]
4494
683
116
SEG[194]
2816
683
78
SEG[232]
4450
683
117
SEG[193]
2774
683
79
SEG[231]
4408
683
118
SEG[192]
2730
683
80
SEG[230]
4364
683
119
SEG[191]
2688
683
81
SEG[229]
4322
683
120
SEG[190]
2644
683
82
SEG[228]
4278
683
121
SEG[189]
2602
683
83
SEG[227]
4236
683
122
SEG[188]
2558
683
84
SEG[226]
4192
683
123
SEG[187]
2516
683
85
SEG[225]
4150
683
124
SEG[186]
2472
683
86
SEG[224]
4106
683
125
SEG[185]
2430
683
87
SEG[223]
4064
683
126
SEG[184]
2386
683
88
SEG[222]
4020
683
127
SEG[183]
2344
683
89
SEG[221]
3978
683
128
SEG[182]
2300
683
90
SEG[220]
3934
683
129
SEG[181]
2258
683
91
SEG[219]
3892
683
130
SEG[180]
2214
683
92
SEG[218]
3848
683
131
SEG[179]
2172
683
93
SEG[217]
3806
683
132
SEG[178]
2128
683
94
SEG[216]
3762
683
133
SEG[177]
2086
683
95
SEG[215]
3720
683
134
SEG[176]
2042
683
96
SEG[214]
3676
683
135
SEG[175]
2000
683
97
SEG[213]
3634
683
136
SEG[174]
1956
683
98
SEG[212]
3590
683
137
SEG[173]
1914
683
99
SEG[211]
3548
683
138
SEG[172]
1870
683
100
SEG[210]
3504
683
139
SEG[171]
1828
683
101
SEG[209]
3462
683
140
SEG[170]
1784
683
102
SEG[208]
3418
683
141
SEG[169]
1742
683
103
SEG[207]
3376
683
142
SEG[168]
1698
683
104
SEG[206]
3332
683
143
SEG[167]
1656
683
105
SEG[205]
3290
683
144
SEG[166]
1612
683
106
SEG[204]
3246
683
145
SEG[165]
1570
683
107
SEG[203]
3204
683
146
SEG[164]
1526
683
108
SEG[202]
3160
683
147
SEG[163]
1484
683
109
SEG[201]
3118
683
148
SEG[162]
1440
683
110
SEG[200]
3074
683
149
SEG[161]
1398
683
111
SEG[199]
3032
683
150
SEG[160]
1354
683
112
SEG[198]
2988
683
151
SEG[159]
1312
683
113
SEG[197]
2946
683
152
SEG[158]
1268
683
114
SEG[196]
2902
683
153
SEG[157]
1226
683
115
SEG[195]
2860
683
154
SEG[156]
1182
683
4/86
2007/10/25
ST7529
PAD No.
Ver 1.8
PIN Name
X
Y
PAD No.
PIN Name
X
Y
155
SEG[155]
1140
683
194
SEG[116]
-538
683
156
SEG[154]
1096
683
195
SEG[115]
-580
683
157
SEG[153]
1054
683
196
SEG[114]
-624
683
158
SEG[152]
1010
683
197
SEG[113]
-666
683
159
SEG[151]
968
683
198
SEG[112]
-710
683
160
SEG[150]
924
683
199
SEG[111]
-752
683
161
SEG[149]
882
683
200
SEG[110]
-796
683
162
SEG[148]
838
683
201
SEG[109]
-838
683
163
SEG[147]
796
683
202
SEG[108]
-882
683
164
SEG[146]
752
683
203
SEG[107]
-924
683
165
SEG[145]
710
683
204
SEG[106]
-968
683
166
SEG[144]
666
683
205
SEG[105]
-1010
683
167
SEG[143]
624
683
206
SEG[104]
-1054
683
168
SEG[142]
580
683
207
SEG[103]
-1096
683
169
SEG[141]
538
683
208
SEG[102]
-1140
683
170
SEG[140]
494
683
209
SEG[101]
-1182
683
171
SEG[139]
452
683
210
SEG[100]
-1226
683
172
SEG[138]
408
683
211
SEG[99]
-1268
683
173
SEG[137]
366
683
212
SEG[98]
-1312
683
174
SEG[136]
322
683
213
SEG[97]
-1354
683
175
SEG[135]
280
683
214
SEG[96]
-1398
683
176
SEG[134]
236
683
215
SEG[95]
-1440
683
177
SEG[133]
194
683
216
SEG[94]
-1484
683
178
SEG[132]
150
683
217
SEG[93]
-1526
683
179
SEG[131]
108
683
218
SEG[92]
-1570
683
180
SEG[130]
64
683
219
SEG[91]
-1612
683
181
SEG[129]
22
683
220
SEG[90]
-1656
683
182
SEG[128]
-22
683
221
SEG[89]
-1698
683
183
SEG[127]
-64
683
222
SEG[88]
-1742
683
184
SEG[126]
-108
683
223
SEG[87]
-1784
683
185
SEG[125]
-150
683
224
SEG[86]
-1828
683
186
SEG[124]
-194
683
225
SEG[85]
-1870
683
187
SEG[123]
-236
683
226
SEG[84]
-1914
683
188
SEG[122]
-280
683
227
SEG[83]
-1956
683
189
SEG[121]
-322
683
228
SEG[82]
-2000
683
190
SEG[120]
-366
683
229
SEG[81]
-2042
683
191
SEG[119]
-408
683
230
SEG[80]
-2086
683
192
SEG[118]
-452
683
231
SEG[79]
-2128
683
193
SEG[117]
-494
683
232
SEG[78]
-2172
683
5/86
2007/10/25
ST7529
PAD No.
Ver 1.8
PIN Name
X
Y
PAD No.
PIN Name
X
Y
233
SEG[77]
-2214
683
272
SEG[38]
-3892
683
234
SEG[76]
-2258
683
273
SEG[37]
-3934
683
235
SEG[75]
-2300
683
274
SEG[36]
-3978
683
236
SEG[74]
-2344
683
275
SEG[35]
-4020
683
237
SEG[73]
-2386
683
276
SEG[34]
-4064
683
238
SEG[72]
-2430
683
277
SEG[33]
-4106
683
239
SEG[71]
-2472
683
278
SEG[32]
-4150
683
240
SEG[70]
-2516
683
279
SEG[31]
-4192
683
241
SEG[69]
-2558
683
280
SEG[30]
-4236
683
242
SEG[68]
-2602
683
281
SEG[29]
-4278
683
243
SEG[67]
-2644
683
282
SEG[28]
-4322
683
244
SEG[66]
-2688
683
283
SEG[27]
-4364
683
245
SEG[65]
-2730
683
284
SEG[26]
-4408
683
246
SEG[64]
-2774
683
285
SEG[25]
-4450
683
247
SEG[63]
-2816
683
286
SEG[24]
-4494
683
248
SEG[62]
-2860
683
287
SEG[23]
-4536
683
249
SEG[61]
-2902
683
288
SEG[22]
-4580
683
250
SEG[60]
-2946
683
289
SEG[21]
-4622
683
251
SEG[59]
-2988
683
290
SEG[20]
-4666
683
252
SEG[58]
-3032
683
291
SEG[19]
-4708
683
253
SEG[57]
-3074
683
292
SEG[18]
-4752
683
254
SEG[56]
-3118
683
293
SEG[17]
-4794
683
255
SEG[55]
-3160
683
294
SEG[16]
-4838
683
256
SEG[54]
-3204
683
295
SEG[15]
-4880
683
257
SEG[53]
-3246
683
296
SEG[14]
-4924
683
258
SEG[52]
-3290
683
297
SEG[13]
-4966
683
259
SEG[51]
-3332
683
298
SEG[12]
-5010
683
260
SEG[50]
-3376
683
299
SEG[11]
-5052
683
261
SEG[49]
-3418
683
300
SEG[10]
-5096
683
262
SEG[48]
-3462
683
301
SEG[9]
-5138
683
263
SEG[47]
-3504
683
302
SEG[8]
-5182
683
264
SEG[46]
-3548
683
303
SEG[7]
-5224
683
265
SEG[45]
-3590
683
304
SEG[6]
-5268
683
266
SEG[44]
-3634
683
305
SEG[5]
-5310
683
267
SEG[43]
-3676
683
306
SEG[4]
-5354
683
268
SEG[42]
-3720
683
307
SEG[3]
-5396
683
269
SEG[41]
-3762
683
308
SEG[2]
-5440
683
270
SEG[40]
-3806
683
309
SEG[1]
-5482
683
271
SEG[39]
-3848
683
310
SEG[0]
-5526
683
6/86
2007/10/25
ST7529
PAD No.
Ver 1.8
PIN Name
X
Y
PAD No.
PIN Name
X
Y
311
COM[80]
-5724
683
350
COM[119]
-7401
683
312
COM[81]
-5767
683
351
COM[120]
-7444
683
313
COM[82]
-5810
683
352
COM[121]
-7487
683
314
COM[83]
-5853
683
353
COM[122]
-7530
683
315
COM[84]
-5896
683
354
COM[123]
-7573
683
316
COM[85]
-5939
683
355
COM[124]
-7616
683
317
COM[86]
-5982
683
356
COM[125]
-7659
683
318
COM[87]
-6025
683
357
COM[126]
-7702
683
319
COM[88]
-6068
683
358
COM[127]
-7745
683
320
COM[89]
-6111
683
359
COM[128]
-7788
683
321
COM[90]
-6154
683
360
COM[129]
-7831
683
322
COM[91]
-6197
683
361
COM[130]
-7874
683
323
COM[92]
-6240
683
362
COM[131]
-7917
683
324
COM[93]
-6283
683
363
COM[132]
-8196
661
325
COM[94]
-6326
683
364
COM[133]
-8196
618
326
COM[95]
-6369
683
365
COM[134]
-8196
575
327
COM[96]
-6412
683
366
COM[135]
-8196
532
328
COM[97]
-6455
683
367
COM[136]
-8196
489
329
COM[98]
-6498
683
368
COM[137]
-8196
446
330
COM[99]
-6541
683
369
COM[138]
-8196
403
331
COM[100]
-6584
683
370
COM[139]
-8196
360
332
COM[101]
-6627
683
371
COM[140]
-8196
317
333
COM[102]
-6670
683
372
COM[141]
-8196
274
334
COM[103]
-6713
683
373
COM[142]
-8196
231
335
COM[104]
-6756
683
374
COM[143]
-8196
188
336
COM[105]
-6799
683
375
COM[144]
-8196
145
337
COM[106]
-6842
683
376
COM[145]
-8196
102
338
COM[107]
-6885
683
377
COM[146]
-8196
59
339
COM[108]
-6928
683
378
COM[147]
-8196
16
340
COM[109]
-6971
683
379
COM[148]
-8196
-27
341
COM[110]
-7014
683
380
COM[149]
-8196
-70
342
COM[111]
-7057
683
381
COM[150]
-8196
-113
343
COM[112]
-7100
683
382
COM[151]
-8196
-156
344
COM[113]
-7143
683
383
COM[152]
-8196
-199
345
COM[114]
-7186
683
384
COM[153]
-8196
-242
346
COM[115]
-7229
683
385
COM[154]
-8196
-285
347
COM[116]
-7272
683
386
COM[155]
-8196
-328
348
COM[117]
-7315
683
387
COM[156]
-8196
-371
349
COM[118]
-7358
683
388
COM[157]
-8196
-414
7/86
2007/10/25
ST7529
PAD No.
Ver 1.8
PIN Name
X
Y
PAD No.
389
COM[158]
-8196
-457
428
D2
-4495
-712
390
COM[159]
-8196
-500
429
D3
-4385
-712
391
T[10]
-8197
-712
430
D4
-4275
-712
392
T[9]
-8122
-712
431
D5
-4165
-712
393
T[8]
-8047
-712
432
D6
-4055
-712
394
T[7]
-7972
-712
433
D7
-3945
-712
395
T[6]
-7897
-712
434
VSS
-3835
-712
396
T[5]
-7822
-712
435
VDD
-3725
-712
397
T[4]
-7747
-712
436
D8
-3615
-712
398
T[3]
-7672
-712
437
D9
-3505
-712
399
T[2]
-7597
-712
438
D10
-3395
-712
400
T[1]
-7522
-712
439
D11
-3285
-712
401
T[0]
-7447
-712
440
D12
-3175
-712
402
VSS
-7355
-712
441
D13
-3065
-712
403
VSS
-7245
-712
442
D14
-2955
-712
404
VSS
-7135
-712
443
D15
-2845
-712
405
VSS
-7025
-712
444
VSS
-2735
-712
406
VSS4
-6915
-712
445
VDD
-2625
-712
407
VSS4
-6805
-712
446
E_RD
-2515
-712
408
VSS1
-6695
-712
447
RST
-2405
-712
409
VSS1
-6585
-712
448
VSS
-2295
-712
410
VDD1
-6475
-712
449
VDD
-2185
-712
411
VDD1
-6365
-712
450
M0
-2075
-712
412
VDD
-6255
-712
451
M1
-1965
-712
413
VDD
-6145
-712
452
IF1
-1855
-712
414
VDD
-6035
-712
453
IF2
-1745
-712
415
VDD
-5925
-712
454
IF3
-1635
-712
416
VDD
-5815
-712
455
VSS
-1525
-712
417
VDD
-5705
-712
456
VDD
-1415
-712
418
CL
-5595
-712
457
SI
-1305
-712
419
CLS
-5485
-712
458
SCL
-1195
-712
420
VSS
-5375
-712
459
XCS
-1085
-712
421
VDD
-5265
-712
460
VDD
-975
-712
422
A0
-5155
-712
461
VDD
-865
-712
423
RW_WR
-5045
-712
462
VDD
-755
-712
424
VSS
-4935
-712
463
VDD
-645
-712
425
VDD
-4825
-712
464
VDD
-535
-712
426
D0
-4715
-712
465
VDD
-425
-712
427
D1
-4605
-712
466
VDD1
-315
-712
8/86
PIN Name
X
Y
2007/10/25
ST7529
PAD No.
Ver 1.8
PIN Name
X
Y
PAD No.
PIN Name
X
Y
467
VDD1
-205
-712
506
VDD5
4085
-712
468
VSS1
-95
-712
507
TCAP
4195
-712
469
VSS1
15
-712
508
C7P
4305
-712
470
VSS
125
-712
509
C1N
4415
-712
471
VSS
235
-712
510
C5P
4525
-712
472
VSS
345
-712
511
C3P
4635
-712
473
VSS
455
-712
512
C1N
4745
-712
474
VSS
565
-712
513
C1P
4855
-712
475
VSS
675
-712
514
C2P
4965
-712
476
VSS2
785
-712
515
C2N
5075
-712
477
VSS2
895
-712
516
C4P
5185
-712
478
VSS2
1005
-712
517
C2N
5295
-712
479
VSS2
1115
-712
518
C6P
5405
-712
480
VSS2
1225
-712
519
VLCDIN
5515
-712
481
VSS2
1335
-712
520
VLCDIN
5625
-712
482
VSS2
1445
-712
521
VLCDIN
5735
-712
483
VSS2
1555
-712
522
VLCDIN
5845
-712
484
VSS2
1665
-712
523
VLCDIN
5955
-712
485
VSS2
1775
-712
524
VLCDIN
6065
-712
486
VSS2
1885
-712
525
VLCDOUT
6175
-712
487
VSS4
1995
-712
526
VLCDOUT
6285
-712
488
VSS4
2105
-712
527
VLCDOUT
6395
-712
489
VDD4
2215
-712
528
VLCDOUT
6505
-712
490
VDD4
2325
-712
529
VLCDOUT
6615
-712
491
VDD3
2435
-712
530
VLCDOUT
6725
-712
492
VDD3
2545
-712
531
VREF
6835
-712
493
VDD2
2655
-712
532
V4
6945
-712
494
VDD2
2765
-712
533
V3
7055
-712
495
VDD2
2875
-712
534
V2
7165
-712
496
VDD2
2985
-712
535
V1
7275
-712
497
VDD2
3095
-712
536
V0OUT
7385
-712
498
VDD2
3205
-712
537
V0OUT
7495
-712
499
VDD2
3315
-712
538
V0OUT
7605
-712
500
VDD2
3425
-712
539
V0OUT
7715
-712
501
VDD2
3535
-712
540
V0IN
7825
-712
502
VDD2
3645
-712
541
V0IN
7935
-712
503
VDD5
3755
-712
542
V0IN
8045
-712
504
VDD5
3865
-712
543
V0IN
8155
-712
505
VDD5
3975
-712
544
COM[0]
8196
-500
9/86
2007/10/25
ST7529
PAD No.
Ver 1.8
PIN Name
X
Y
545
COM[1]
8196
-457
546
COM[2]
8196
-414
547
COM[3]
8196
-371
548
COM[4]
8196
-328
549
COM[5]
8196
-285
550
COM[6]
8196
-242
551
COM[7]
8196
-199
552
COM[8]
8196
-156
553
COM[9]
8196
-113
554
COM[10]
8196
-70
555
COM[11]
8196
-27
556
COM[12]
8196
16
557
COM[13]
8196
59
558
COM[14]
8196
102
559
COM[15]
8196
145
560
COM[16]
8196
188
561
COM[17]
8196
231
562
COM[18]
8196
274
563
COM[19]
8196
317
564
COM[20]
8196
360
565
COM[21]
8196
403
566
COM[22]
8196
446
567
COM[23]
8196
489
568
COM[24]
8196
532
569
COM[25]
8196
575
570
COM[26]
8196
618
571
COM[27]
8196
661
10/86
2007/10/25
ST7529
5. BLOCK DIAGRAM
SEG0 TO SEG254
COM0 TO COM159
VDD1
VDD
V0 In
V1
V2
V3
V4
SEGMENT DRIVERS
COMMON
DRIVERS
M0
M1
VSS
DATA LATCHES
COMMON
OUTPUT
CONTROLLER
CIRCUIT
V/F
Circuit
FRC/PWM FUNCTION
CIRCUIT
V0 out
VREF
Cap1P
Cap1N
Cap2P
Cap2N
Cap3P
Cap4P
Cap5P
Cap6P
Cap7P
CLS
V/R
Circuit
DISPLAY
ADDRESS
COUNTER
ADDRESS COUNTER
VLCDin
VLCDout
DATA
REGISTER
INSTRUCTION
REGISTER
BUS
HOLDER
INSTRUCTION
DECODER
MPU INTERFACE(PARALLEL & SERIAL)
D0 to D15
11/86
SI
SCL
E_RD
RW_WR
A0
XCS
RST
IF3
IF2
IF1
Ver 1.8
CL
TIMING
GENERATOR
V/C
Circuit
VDD5
VDD4
VDD3
VDD2
VSS1
VSS4
OSCILLATOR
DISPLAY DATA RAM
(DDRAM)
[160X255X5]
2007/10/25
ST7529
6. PIN DESCRIPTION
6.1 POWER SUPPLY
Name
VDD
VDD1
VDD2
VDD3
VDD4
VDD5
VSS
VSS1
VSS4
I/O
Supply Power supply for logic circuit
Supply Power supply for OSC circuit
Supply Power supply for Booster Circuit
Description
Supply Power supply for LCD
Supply Ground. Ground system should be connected together.
If the internal voltage generator is used, the VLCDIN & VLCDOUT must be connected together.
If an external supply is used, this pin must be left open.
An external LCD supply voltage can be supplied using the VLCDIN pad. In this case, VLCDOUT has to be
Supply
left open, and the internal voltage generator has to be programmed to zero. (SET register VB=0)
LCD driver supply voltages
V0In & V0out should be connected together in FPC area.
Voltages should have the following relationship:
V0 ≥ V1 ≥ V2 ≥ V3 ≥ V4 ≥ VSS
Supply When the internal power circuit is active, these voltages are generated as the following table according
to the state of LCD bias.
LCD bias
V1
V2
V3
V4
VLCDOUT Supply
VLCDIN
V0In
V0out
V1
V2
V3
V4
CAP6P
1/N bias
NOTE: N = 5 to 14
O
(N-1) / N x V0
(N-2) / N x V0
(2/N) x V0
(1/N) x V0
DC/DC voltage converter. Connect a capacitor between this terminal and the CAP2N terminal.
DC/DC voltage converter. Connect a capacitor between this terminal and the CAP6P terminal.
CAP2N
O
Connect a capacitor between this terminal and the CAP4P terminal.
Connect a capacitor between this terminal and the CAP2P terminal.
CAP4P
O
DC/DC voltage converter. Connect a capacitor between this terminal and the CAP2N terminal.
CAP2P
O
DC/DC voltage converter. Connect a capacitor between this terminal and the CAP2N terminal.
CAP1P
O
DC/DC voltage converter. Connect a capacitor between this terminal and the CAP1N terminal.
DC/DC voltage converter. Connect a capacitor between this terminal and the CAP1P terminal.
Connect a capacitor between this terminal and the CAP3P terminal.
CAP1N
O
Connect a capacitor between this terminal and the CAP5P terminal.
Connect a capacitor between this terminal and the CAP7P terminal.
CAP3P
O
DC/DC voltage converter. Connect a capacitor between this terminal and the CAP1N terminal.
CAP5P
O
DC/DC voltage converter. Connect a capacitor between this terminal and the CAP1N terminal.
CAP7P
O
DC/DC voltage converter. Connect a capacitor between this terminal and the CAP1N terminal.
6.2 LCD DRIVER SUPPLY
Name
VREF
I/O
O
CLS
I
CL
I/O
Ver 1.8
Description
Reference voltage output for monitor only. Leave it open.
When using internal clock oscillator, connect CLS to VDD.
When using external clock oscillator, connect CLS to VSS.
When using internal clock oscillator, it is the output of oscillator.
When using external clock oscillator, it is the input of oscillator.
12/86
2007/10/25
ST7529
6.3 SYSTEM CONTROL
Name
TCAP
T[0]~T[10]
Ver 1.8
I/O
O
---
Description
Test pin. Leave it open.
Test pin. Leave it open.
13/86
2007/10/25
ST7529
6.4 MICROPROCESSOR INTERFACE
Name
I/O
M0, M1
I
RST
I
XCS
I
IF[3:1]
I
A0
I
RW_WR
I
Description
M0,M1 must be fixed to VSS. This pin is reserved for internal setting.
Reset input pin
When RST is “L”, initialization is executed.
Chip select input pins
Data/instruction I/O is enabled only when XCS is "L". When chip select is non-active, DB0 to
DB15 may be high impedance.
Parallel / Serial data input select input
IF1
IF2
IF3
MPU interface type
H
H
H
L
L
L
H
H
L
H
L
L
H
L
L
H
H
L
Register select input pin
− A0 = "H": DB0 to DB15 or SI are display data
− A0 = "L": DB0 to DB15 or SI are control data
Read / Write execution control pin
MPU type
RW_WR
6800-series
RW
8080-series
/WR
I
D15 to D0
I/O
SI
I
SCL
I
6800-series
E
8080-series
/RD
Description
Read / Write control input pin
RW = “H” : read
RW = “L” : write
Write enable clock input pin
The data on DB0 to DB15 are latched at the
rising edge of the /WR signal.
Read / Write execution control pin
MPU Type
E_RD
E_RD
80 series 16-bit parallel
80 series 8-bit parallel
68 series 16-bit parallel
68 series 8-bit parallel
9-bit serial (3 line)
8-bit serial (4 line)
Description
Read / Write control input pin
− RW = “H”: When E is “H”, DB0 to DB15 are in an
output status.
− RW = “L”: The data on DB0 to DB15 are latched at
the falling edge of the E signal.
Read enable clock input pin
When /RD is “L”, DB0 to DB15 are in an output status.
They connect to the standard 8-bit or 16-bit MPU bus via the 8/16 –bit bi-directional bus.
When the following interface is selected and the XCS pin is high, the following pins become high
impedance, which should be fixed to VDD or VSS.
1. 8-bit parallel: D15-D8 are in the state of high impedance
2. Serial interface: D15-D0 are in the state of high impedance
This pin is used to input serial data when the serial interface is selected. (3 line and 4 line)
This pin is used to input serial clock when the serial interface is selected.
The data is latched at the rising edge. (3 line and 4 line)
NOTE:
Microprocessor interface pins should not be floating in any operation mode.
Ver 1.8
14/86
2007/10/25
ST7529
6.5 LCD DRIVER OUTPUTS
Name
SEG0
to
SEG254
COM0
to
COM159
I/O
O
Description
LCD segment driver outputs
The display data and the M signal control the output voltage of segment driver.
Segment driver output voltage
Display data
M (Internal)
Normal display
Reverse display
H
H
L
L
H
L
H
L
V0
VSS
V2
V3
VSS
Power save mode
LCD common driver outputs
The internal scanning data and M signal control the output voltage of common driver.
Scan data
M (Internal)
Common driver output voltage
O
H
H
L
L
H
L
H
L
Power save mode
Ver 1.8
V2
V3
V0
VSS
VSS
15/86
VSS
V0
V1
V4
VSS
2007/10/25
ST7529
7. FUNCTIONAL DESCRIPTION
7.1 MICROPROCESSOR INTERFACE
Chip Select Input
The XCS pin is for chip selection. The ST7529 can function with an MPU when XCS is "L". In case of serial interface, the
internal shift register and the counter are reset.
7.1.1 Selecting Parallel / Serial Interface
ST7529 has seven types of interface with an MPU, which are four parallel and three serial interfaces. This parallel or serial
interface is determined by IF pin as shown in table 7.1.1.
Table 7.1.1 Parallel / Serial Interface Mode
IF1 IF2 IF3
Interface type
H
H
H 80 serial 16-bit parallel
H
H
L 80 serial 8-bit parallel
H
L
L 68 serial 16-bit parallel
L
H
H 68 serial 8-bit parallel
L
L
H 9-bit SPI mode (3 line)
L
L
L 8-bit SPI mode (4 line)
XCS
XCS
XCS
XCS
XCS
XCS
XCS
A0
A0
A0
A0
A0
-A0
/RD(E) /WR(R/W) D15 to D8
/RD
/WR
D15 to D8
/RD
/WR
-E
R/W
D15 to D8
E
R/W
--------
D7 to D0 SI
D7 to D0 -D7 to D0 -D7 to D0 -D7 to D0 -SI
SI
SCL
----SCL
SCL
ACK
-------
Note: “--” means “disabled” in pins A0, E_RD, and RW_WR, and “high impedance” in pins DB0 to DB15.
7.1.2 8- or 16-bit Parallel Interface
The ST7529 identifies the type of the data bus signals according to the combination of A0, /RD (E) and /WR (W/R) as
shown in table 7.1.2.
Table 7.1.2 Parallel Data Transfer
Common
6800-series
8080-series
A0
R/W
E
/RD
/WR
H
H
L
L
H
L
H
L
H
H
H
H
L
H
L
H
H
L
H
L
Description
Display data read out
Display data write
Register status read
Writes to internal register (instruction)
Relation between Data Bus and Gradation Data
ST7529 offers the 2bytes 3pixels(2B3P), 3bytes 3pixels(3B3P) mode to display 32 gray scale data.
(1) 2B3P 32 Gray Scale Display
1. 8-bit mode
D7 D6 D5 D4 D3 D2 D1 D0
P0 P0 P0 P0 P0 P1 P1 P1 1st write
P1 P1 X P2 P2 P2 P2 P2 2nd write
A single pixel of data is read after the second write operation as shown, and it is written in the display RAM.
“X” are dummy bits, which are ignored for display.
2. 16-bit mode
D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
P0 P0 P0 P0 P0 P1 P1 P1 P1 P1 X P2 P2 P2 P2 P2
Data is acquired through the operation of writing signal, and then written to the display RAM.
“X” are dummy bits, which are ignored for display.
Ver 1.8
16/86
2007/10/25
ST7529
(2) 3B3P 32 Gray Scale Display
1. 8-bit mode
D7 D6 D5 D4 D3 D2 D1 D0
P0 P0 P0 P0 P0 X X X 1st write
P1 P1 P1 P1 P1 X X X 2nd write
P2 P2 P2 P2 P2 X X X 3rd write
A single pixel of data is read after the third write operation as shown, and it is written in the display RAM.
“X” are dummy bits, which are ignored for display.
2. 16 bit mode
D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
P0 P0 P0 P0 P0
X
X X P1 P1 P1 P1 P1 X X X 1st write
P2 P2 P2 P2 P2
X
X X X X X X X X X X 2nd write
A single pixel of data is read after the second write operation as shown, and it is written in the display RAM.
“X” are dummy bits, which are ignored for display.
7.1.3 8-bit (4 line) and 9-bit (3 line) Serial Interface
The 8-bit serial interface uses four pins XCS, SI, SCL, and A0 to enter commands and data. Meanwhile, the 9-bit serial
interface uses three pins XCS, SI and SCL for the same purpose.
Data read is not available in the serial interface. The entered data must be 8 bits. Refer to the following chart for entering
commands, parameters or gray-scale data.
The relation between gray-scale data and data bus in the serial input is the same as that in the 8-bit parallel interface mode
at every gradation.
Ver 1.8
17/86
2007/10/25
ST7529
(1) 8-bit serial interface (4 line)
th
When entering data (parameters): A0= HIGH at the rising edge of the 8 SCL.
th
When entering command: A0= LOW at the rising edge of the 8 SCL
(2) 9-bit serial interface (3 line)
st
When entering data (parameters): SI= HIGH at the rising edge of the 1 SCL.
st
When entering command: SI= LOW at the rising edge of the 1 SCL.
Ver 1.8
18/86
2007/10/25
ST7529
If XCS is set to HIGH while the 8 bits from D7 to D0 are entered, the data concerned is invalid. Before entering
succeeding sets of data, you must correctly input the data concerned again.
In order to avoid data transfer error due to incoming noise, it is recommended to set XCS at HIGH on byte basis to
initialize the serial-to-parallel conversion counter and the register.
th
When executing the command RAMWR, set XCS to HIGH after writing the last address (after starting the 9 pulse in
th
case of 9-bit serial input or after starting the 8 pulse in case of 8-bit serial input).
Ver 1.8
19/86
2007/10/25
ST7529
7.2 ACCESS TO DDRAM AND INTERNAL REGISTERS
Since ST7529 access from MPU by pipeline processing via the bus holder attached to the internal that requires only the
cycle time but no waiting time, it can achieves high-speed data transfer.
For example, when MPU writes data to the DDRAM, the data is once held by the bus holder and then written to the
DDRAM before the succeeding write cycle start. When MPU reads data from the DDRAM, the first read cycle is dummy
and the data read in the dummy cycle is held by the bus holder, and then it read from the bus holder to the system bus in
the succeeding read cycle. Fig. 7.2.1 illustrates these relations.
MPU signal
Write
Operation
A0
/WR
DATA
N
D(N)
D(N+1) D(N+2)
D(N+3)
N
D(N)
D(N+1)
D(N+2)
D(N+3)
N
N+1
N+2
N+3
Dummy
D(N)
Internal signals
/WR
BUS HOLDER
COLUMN ADDRESS
MPU signal
Read
Operation
A0
/WR
/RD
DATA
N
D(N+1)
Internal signals
/WR
/RD
BUS HOLDER
N
COLUMN ADDRESS
N
D(N)
D(N+1)
D(N+2)
D(N)
D(N+1)
D(N+2)
Fig 7.2.1
Ver 1.8
20/86
2007/10/25
ST7529
7.3 DISPLAY DATA RAM (DDRAM)
7.3.1 DDRAM
It is 160 X 255 X 5 bits capacity RAM prepared for storing dot data. You can access a desired bit by specifying the LINE
address and column address. Since the display data from MCU D7 to D0 and D15 to D8 correspond to one or two pixels,
data transfer related restrictions are reduced, and the display would be flexible.
The RAM on ST7529 is separated to a block per 4 lines to allow the display system to process data on the block basis.
The reading and writing RAM operations of MPU are performed via the I/O buffer circuit. Reading of the RAM for the liquid
crystal drive is controlled from another separate circuit.
Refer to the following memory map for the RAM configuration.
Ver 1.8
21/86
2007/10/25
ST7529
7.3.1-1 32 Gray Scale Display
Memory Map (2B3P, 8-bit mode)
LCD
read
direction
Block
0
1
2
38
39
SEGout
Ver 1.8
CI = 0
CI = 1
Pixel
Data Line
Column
1
83
P4
P5
P0
0
84
P1
P2
P3
D7’1,0
D6’1,0
D5’1,0
D4’1,0
D3’1,0
D2’1,0
D1’1,0
D0’1,0
D7’2,0
D6’2,0
D4’2,0
D3’2,0
D2’2,0
D1’2,0
D0’2,0
D7’1,1
D6’1,1
D5’1,1
D4’1,1
D3’1,1
D2’1,1
D1’1,1
D0’1,1
D7’2,1
D6’2,1
0
1
2
3
4
P252
84
0
P253
P254
D4’2,1
D3’2,1
D2’2,1
D1’2,1
D0’2,1
D7’1,84
D6’1,84
D5’1,84
D4’1,84
D3’1,84
D2’1,84
D1’1,84
D0’1,84
D7’2,84
D6’2,84
D4’2,84
D3’2,84
D2’2,84
D1’2,84
D0’2,84
5
252
253
254
LI = 0 LI = 1
0
159
1
158
2
157
3
156
4
155
5
154
6
153
7
152
8
151
9
150
152
153
154
155
156
157
158
159
7
6
5
4
3
2
1
0
22/86
2007/10/25
ST7529
Memory Map (2B3P, 16-bit mode)
LCD
read
direction
Block
0
1
2
38
39
SEGout
Ver 1.8
CI = 0
CI = 1
Pixel
Data Line
Column
1
83
P4
P5
P0
0
84
P1
P2
P3
D15’0
D14’0
D13’0
D12’0
D11’0
D10’0
D9’0
D8’0
D7’0
D6’0
D4’0
D3’0
D2’0
D1’0
D0’0
D15’1
D14’1
D13’1
D12’1
D11’1
D10’1
D9’1
D8’1
D7’1
D6’1
D4’1
D3’1
D2’1
D1’1
D0’1
0
1
2
3
4
5
84
0
P253
P254
D15’84 D10’84
D14’84 D9’84
D13’84 D8’84
D12’84 D7’84
D11’84 D6’84
D4’84
D3’84
D2’84
D1’84
D0’84
P252
LI = 0 LI = 1
0
159
1
158
2
157
3
156
4
155
5
154
6
153
7
152
8
151
9
150
152
153
154
155
156
157
158
159
7
6
5
4
3
2
1
0
23/86
252
253
254
2007/10/25
ST7529
Memory Map (3B3P, 8-bit mode)
Column
LCD
read
direction
Block
0
1
2
38
39
SEGout
Ver 1.8
CI = 0
CI = 1
Pixel
Data Line
LI = 0
0
1
2
3
4
5
6
7
8
9
152
153
154
155
156
157
158
159
P0
0
84
P1
P3
1
83
P4
P2
D7’1,0
D6’1,0
D5’1,0
D4’1,0
D3’1,0
D7’2,0
D6’2,0
D5’2,0
D4’2,0
D3’2,0
0
1
P252
84
0
P253
P5
P254
D7’3,0
D6’3,0
D5’3,0
D4’3,0
D3’3,0
D7’1,1
D6’1,1
D5’1,1
D4’1,1
D3’1,1
D7’2,1
D6’2,1
D5’2,1
D4’2,1
D3’2,1
D7’3,1
D6’3,1
D5’3,1
D4’3,1
D3’3,1
D7’1,84
D6’1,84
D5’1,84
D4’1,84
D3’1,84
D7’2,84
D6’2,84
D5’2,84
D4’2,84
D3’2,84
D7’3,84
D6’3,84
D5’3,84
D4’3,84
D3’3,84
2
3
4
5
252
253
254
LI = 1
159
158
157
156
155
154
153
152
151
150
7
6
5
4
3
2
1
0
24/86
2007/10/25
ST7529
Memory Map (3B3P, 16-bit mode)
LCD
read
direction
Block
0
1
2
38
39
CI = 0
CI = 1
Pixel
Data Line
LI = 0
0
1
2
3
4
5
6
7
8
9
LI = 1
159
158
157
156
155
154
153
152
151
150
152
153
154
155
156
157
158
159
7
6
5
4
3
2
1
0
SEGout
Column
1
83
P4
P5
P0
0
84
P1
P2
P3
D15’1,0
D14’1,0
D13’1,0
D12’1,0
D11’1,0
D7’1,0
D6’1,0
D5’1,0
D4’1,0
D3’1,0
D15’2,0
D14’2,0
D13’2,0
D12’2,0
D11’2,0
D15’1,1
D14’1,1
D13’1,1
D12’1,1
D11’1,1
D7’1,1
D6’1,1
D5’1,1
D4’1,1
D3’1,1
0
1
2
3
4
P252
84
0
P253
P254
D15’2,1
D14’2,1
D13’2,1
D12’2,1
D11’2,1
D15’1,84
D14’1,84
D13’1,84
D12’1,84
D11’1,84
D7’1,84
D6’1,84
D5’1,84
D4’1,84
D3’1,84
D15’2,84
D14’2,84
D13’2,84
D12’2,84
D11’2,84
5
252
253
254
7.3.2 Line Address Control Circuit
This circuit is to control the address in the line direction when MPU accesses the DDRAM or read the DDRAM to display
image on the LCD.
You can specify a range of the line address with line address set command. When the line-direction scan is specified with
DATACTRL command and the address are increased from the start up to the end line, the column address is increased by
1 and the line address returns to the start line.
The DDRAM supports up to 160 lines, and thus the total line becomes 160.
In the READ operation, as the end line is reached, the column address is automatically increased by 1 and the line address
returns to the start line.
Users may inverse the correspondence between the DDRAM address and common output via the address normal/inverse
parameter of DATACTRL command.
Ver 1.8
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ST7529
7.3.3 Column Address Control Circuit
This circuit is to control the address in the column direction when MPU accesses the DDRAM. You can specify a range of
the column address with column address set command. When the column-direction scan is specified with DATACTRL
command and the address are increased from the start up to the end line, the line address is increased by 1 and the
column address returns to the start column.
In the READ operation, the column address is also automatically increased by 1 and returns to the start line as the end
column is reached.
Just like the line address control circuit, users may inverse the correspondence between the DDRAM column address and
segment output via the column address normal/inverse parameter of DATACTRL command. This arrangement makes the
chip layout on the LCD module flexible.
7.3.4 I/O Buffer Circuit
It is the bi-directional buffer when MPU reads or writes the DDRAM. Since the READ or WRITE operation of MPU to
DDRAM is performed independently from data output to the display data latch circuit, asynchronous access to the DDRAM
while the LCD is turned on does not cause troubles such as flicking of the display images.
7.3.5 Block Address Circuit
The circuit associates lines on DDRAM with COM output. ST7529 processes signals for the liquid crystal display on 4-line
basis. Thus, when specifying a specific area in the area of scroll display or partial display, you must designate it in block.
7.3.6 Display Data Latch Circuit
This circuit is used to temporarily hold display data to be output from the DDRAM to the SEG decoder circuit. Since display
normal/inverse and display on/off commands are used to control data in the latch circuit alone, they do not modify data in
the DDRAM.
Ver 1.8
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ST7529
7.4 Area Scroll Display
The user may scroll the display screen partially in any one of the following four scroll patterns via AREA SCROLL SET and
SCROLL START SET commands.
Center mode
Top mode
Fixed area
Scrolled area
Bottom mode
Whole mode
7.5 Partial Display
The user may turn on the partial display (division by line) of the screen via PARTIAL IN command. This mode consumes
less current than the whole screen display and is suitable for the equipment in the standby state.
: Display area (partial display area)
: Non-display area
If the partial display region is out of the maximum display range, it will be no operation.
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ST7529
-COM0
-COM1
-COM2
-COM3
-COM4
-COM5
-COM6
-COM7
-COM8
-COM9
-COM10
-COM11
-COM12
-COM13
-COM14
-COM15
-COM16
-COM17
-COM18
-COM19
-COM20
-COM21
-COM22
-COM23
Figure 7.5.1.Reference Example for Partial Display
-COM0
-COM1
-COM2
-COM3
-COM4
-COM5
-COM6
-COM7
-COM8
-COM9
-COM10
-COM11
-COM12
-COM13
-COM14
-COM15
-COM16
-COM17
-COM18
-COM19
-COM20
-COM21
-COM22
-COM23
Figure 7.5.2.Partial Display
-COM0
-COM1
-COM2
-COM3
-COM4
-COM5
-COM6
-COM7
-COM8
-COM9
-COM10
-COM11
-COM12
-COM13
-COM14
-COM15
-COM16
-COM17
-COM18
-COM19
-COM20
-COM21
-COM22
-COM23
Figure 7.5.3.Moving Display
Ver 1.8
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ST7529
7.6 Gray-Scale Display
ST7529 incorporates a 2 FRC & 31 PWM function circuit to display a 32 gray-scale display.
7.7 Oscillation Circuit
This is an on-chip oscillator without external resistor. When the internal oscillator is used, this pin must connect to VDD;
when the external oscillator is used, this pin could be an input pin. This oscillator signal is used in the voltage converter and
display timing generation circuit.
7.8 Display Timing Generator Circuit
This circuit generates some signals for displaying on LCD. The display clock, CL (internal), generated by oscillation clock,
generates the clock for the line counter and the signal for the display data latch. The line address of on-chip RAM is
generated in synchronization with the display clock and the display data latch circuit latches the 160-bit display data in
synchronization with the display clock. The display data, which is read to the LCD driver, is completely independent of the
access to the display data RAM from the MPU. The display clock generates an LCD AC signal (M) which enables the LCD
driver to make an AC drive waveform. It also generates an internal common timing signal and start signal to the common
driver. The frame signal or the line signal changes the M by setting internal instruction. Driving waveform and internal
timing signal are shown in Figure 7.8.1.
Figure 7.8.1 2-frame AC Driving Waveform (Duty Ratio: 1/160)
Ver 1.8
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ST7529
7.9 Liquid Crystal drive Circuit
This driver circuit is configured by 160-channel common drivers and 255-channel segment drivers. This LCD panel driver
voltage depends on the combination of display data and M signal.
V0
V1
V2
V3
V4
VSS
V0
V1
V2
V3
V4
VSS
V0
V1
V2
V3
V4
VSS
V0
V1
V2
V3
V4
VSS
V0
V1
V2
V3
V4
VSS
COM0
COM1
COM0
COM2
COM3
COM4
COM5
COM6
COM1
COM7
COM8
COM9
COM2
COM10
COM11
COM12
COM13
COM14
SEG0
SEG 0
1
2
3
4
SEG1
7.10 Liquid Crystal Driver Power Circuit
The power supply circuit generates the voltage levels required to drive liquid crystal driver with low power consumption and
the fewest components. There are voltage converter circuits, voltage regulator circuits, and voltage follower circuits. They
are controlled by power control instruction. For details, refers to "Instruction Description". Table 7.10.1 shows the
referenced combinations in using Power Supply circuits.
Table 7.10.1 Recommended Power Supply Combinations
User setup
Only the internal power
supply circuits are used
Only the voltage
regulator circuits and
voltage follower circuits
are used
Only the voltage follower
circuits are used
Only the external power
supply circuits are used
Ver 1.8
Power
control
(VB VR VF)
V/B
circuits
V/R
circuits
V/F
circuits
VLCD
V0
V1 to V4
111
ON
ON
ON
Open
Open
Open
011
OFF
ON
ON
External
input
Open
Open
001
OFF
OFF
ON
Open
000
OFF
OFF
OFF
Open
30/86
External
input
External
input
Open
External
input
2007/10/25
ST7529
7.10.1 Voltage Converter Circuits
The Step-up Voltage Circuits
Note: The regulating capacitance on V0 ~ V4 should be between 1.0 to 2.2 µF.
Ver 1.8
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ST7529
7.10.2 Voltage Regulator Circuits
SET VOP (SETVOP)
The set VOP function is to program the optimum LCD supply voltage V0.
SETVOP
Reset state of VPR[8:0] is 257DEC = 13.88V.
The V0 value is programmed via the VPR[8:0] register.
V0 = a + ( VPR[8:6]VPR[5:0]) x b
Ex: VPR[5:0]=000001, VPR[8:6]=100
→ VPR[8:0]=100000001
→ 3.6+257x0.04=13.88
where a is a fixed constant value 3.6, b is a fixed constant value 0.04, VPR[8:0] is the programmed V0 value with
programming range from 5 to 410 (19AHEX), and VPR[5:0] is the set contrast value which can be set via the interface and is
in two’s complement format.(See command VOLUP & VOLDOWN)
The VPR[8:0] value must be in the V0 programming range as given in Fig.7.10.2. Evaluating equation (1), values outside
the programming range indicated in Fig.7.10.2 may result.
V0
Programming range (05HEX to 19AHEX)
b
a
EC
00
01
02
03
04
05
06 .....
410
VPR[8:0] programming, (05hex to 19Ahex)
Fig. 7.10.2 V0 programming range
Although the programming range for the internally generated V0 allows values above the maximum allowed V0, the
customer has to ensure setting the VPR register and selecting the temperature compensation under all condition
and including all tolerances that the maximum allowed V0 (20V) will never be exceeded.
Ver 1.8
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ST7529
Booster Efficiency
By BOOSTER STAGES (2X, 3X, 4X, 5X, 6X, 7X, 8X) and BOOSTER EFFICIENCY (Level1~4) commands, we could easily
set the best booster performance with suitable current consumption. If the booster efficiency is set to higher level (level4 is
higher than level1), the boost efficiency is better than lower level, and it only needs a little bit more power consumption
current. It could be applied to each multiple voltage condition.
When the loading of LCD panel is heavier, the performance of booster will not be in a good working condition. The user
may set the BE level to be higher and only a little bit more current needed. Never consider to change to higher booster
stage at beginning stage unless it is necessary.
The BOOSTER EFFICIENCY command could be used together with BOOSTER STAGE command to choose one best
boost output condition. The user could regard the BOOSTER STAGE command as a large scale operation, and the
BOOSTER EFFICIENCY command as a small scale operation. These commands are very convenient for using.
X6 Cap=1.0uF
18
16
VLCD
14
12
3K
10
6K
8
12K
6
24K
4
2
0
Open 90 K 80 K 70 K 60 K 50 K 40 K 30 K 20 K 10 K
ohm ohm ohm ohm ohm ohm ohm ohm ohm
Loading
Condition : VDD = 2.7V, Cap = 1.0uF, Booster = 6x, measured on chip
20
18
16
14
12
10
8
6
4
2
0
3K
6K
12K
24K
90
O
pe
n
K
oh
m
80
K
oh
m
70
K
oh
m
60
K
oh
m
50
K
oh
m
40
K
oh
m
30
K
oh
m
20
K
oh
m
10
K
oh
m
VLCD
X7 Cap=1.0uF
Loading
Condition : VDD = 2.7V, Cap = 1.0uF, Booster = 7x, measured on chip
Ver 1.8
33/86
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ST7529
RESET CIRCUIT
When Power is Turned On
Input power (VDD1~VDD5)
↓
Be sure to apply POWER-ON RESET (RST = LOW)
↓
<Display Setting>
<<State after resetting>>
Display control (DISCTRL)
Setting clock dividing ratio:
2 dividing
Duty setting:
1/4
Setting reverse rotation number of line:
11H reverse rotations
Common scan direction (COMSCN)
Setting scan direction:
COM0 -> COM79, COM80-> COM159
↓
Oscillation ON (OSCON)
Oscillation OFF
↓
Sleep-out (SLIPOUT)
Sleep-in
↓
<Power Supply Setting>
<<State after resetting>>
Electronic volume control (VOLCTRL)
Setting volume value:
0
Setting built-in resistance value:
0 (3.95)
Power control (PWRCTR)
Setting operation of power supply circuit:
All OFF
↓
<Display Setting 2>
<<State after resetting>>
Normal rotation of display (DISNOR)/Inversion of display (DISINV): Normal rotation of display
Partial-in (PTLIN)/Partial-out (PTLOUT)
Partial-out
Setting fix area:
0
Area scroll set (ASSET)
Setting area scroll region:
0
Setting area scroll type:
Full-screen scroll
Scroll start set (SCSTART)
Setting scroll start address:
0
↓
<Display Setting 3>
<<State after resetting>>
Data control (DATCTRL)
Setting normal rotation/inversion of line address:
Normal rotation
Setting normal rotation/inversion of column address:
Normal rotation
Ver 1.8
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ST7529
Setting direction of address scanner:
Column direction
Setting gradation:
2B3P mode
↓
<RAM Setting>
<<State after resetting>>
Line address set (LASET)
Setting start line address:
0
Setting end line address:
0
Column address set (CASET)
Setting start column address:
0
Setting end column address:
0
↓
<RAM Write>
<<State after resetting>>
Memory write command (RAMWR)
Writing displayed data: Repeat as many as the number needed and exit by entering other command.
↓
<Waiting (approximately 100ms)>
Wait until the power supply voltage has stabilized.
Enter the command of power supply control first, and then wait at least 100ms before entering the display ON
command when the built-in power supply circuit operates.
If you do not wait, an unexpected display may appear on the liquid crystal panel.
↓
DISPLAY ON (DISON):
DISPLAY OFF
*1: When the IC is in SLEEP IN state, the liquid crystal drive power supply, the boosting power output, and
GND pin are connected together, therefore, the SLEEP OUT command must be entered to cancel the SLEEP
state prior to turning on the built-in circuit.
(Note) If changes are unnecessary after resetting, command input is unnecessary.
Ver 1.8
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ST7529
8. COMMANDS
8.1 Command table
Ext=0 or Ext=1
Index Command A0 RD WR D7 D6 D5 D4 D3 D2 D1 D0 Function Hex Parameter
1
Ext In
0
1
0
0
0
1
1
0
0
0
0
Ext=0 Set 30
None
2
Ext Out
0
1
0
0
0
1
1
0
0
0
1
Ext=1 Set 31
None
Ext=0
Index Command A0 RD WR D7 D6 D5 D4 D3 D2 D1 D0
Function
Hex Parameter
1
DISON
0
1
0
1
0
1
0
1
1
1
1
Display On
AF None
2
DISOFF
0
1
0
1
0
1
0
1
1
1
0
Display Off
AE None
3
DISNOR
0
1
0
1
0
1
0
0
1
1
0
Normal Display
A6 None
4
DISINV
0
1
0
1
0
1
0
0
1
1
1
Inverse Display
A7 None
5
COMSCN
0
1
0
1
0
1
1
1
0
1
1
COM Scan Direction
BB 1 byte
6
DISCTRL
0
1
0
1
1
0
0
1
0
1
0
Display Control
CA 3 bytes
7
SLPIN
0
1
0
1
0
0
1
0
1
0
1
Sleep In
95
None
8
SLPOUT
0
1
0
1
0
0
1
0
1
0
0
Sleep Out
94
None
9
LASET
0
1
0
0
1
1
1
0
1
0
1
Line Address Set
75
2 bytes
10
CASET
0
1
0
0
0
0
1
0
1
0
1
Column Address Set
15
2 bytes
11
DATSDR
0
1
0
1
0
1
1
1
1
0
0
Data Scan Direction
BC 3 bytes
12
RAMWR
0
1
0
0
1
0
1
1
1
0
0
Writing to Memory
5C Data
13
RAMRD
0
1
0
0
1
0
1
1
1
0
1
Reading from Memory
5D Data
14
PTLIN
0
1
0
1
0
1
0
1
0
0
0
Partial display in
A8 2 bytes
15
PTLOUT
0
1
0
1
0
1
0
1
0
0
1
Partial display out
A9 None
16
RMWIN
0
1
0
1
1
1
0
0
0
0
0
Read and Modify Write E0 None
17
RMWOUT
0
1
0
1
1
1
0
1
1
1
0
RMW end
EE None
18
ASCSET
0
1
0
1
0
1
0
1
0
1
0
Area Scroll Set
AA 4 bytes
19
SCSTART
0
1
0
1
0
1
0
1
0
1
1
Scroll Start Set
AB 1 byte
20
OSCON
0
1
0
1
1
0
1
0
0
0
1
Internal OSC on
D1 None
21
OSCOFF
0
1
0
1
1
0
1
0
0
1
0
Internal OSC off
D2 None
22
PWRCTRL
0
1
0
0
0
1
0
0
0
0
0
Power Control
20
1 byte
23
VOLCTRL
0
1
0
1
0
0
0
0
0
0
1
EC control
81
2 bytes
24
VOLUP
0
1
0
1
1
0
1
0
1
1
0
EC increase 1
D6 None
25
VOLDOWN
0
1
0
1
1
0
1
0
1
1
1
EC decrease 1
D7 None
26
RESERVED 0
1
0
1
0
0
0
0
0
1
0
Not Use
82
Ver 1.8
36/86
0
2007/10/25
ST7529
27
EPSRRD1
0
1
0
0
1
1
1
1
1
0
0
READ Register1
7C None
28
EPSRRD2
0
1
0
0
1
1
1
1
1
0
1
READ Register2
7D None
29
NOP
0
1
0
0
0
1
0
0
1
0
1
NOP Instruction
25
30
STREAD
0
0
1
31
EPINT
0
1
0
Read Data
0
0
0
0
0
None
Status Read
1
1
1
Initial code(1)
07
1 byte
Ext=1
Index Command A0 RD WR D7 D6 D5 D4 D3 D2 D1 D0
Function
Hex Parameter
1
Gray 1 Set
0
1
0
0
0
1
0
0
0
0
0
FRAME 1 Gray PWM Set 20
16 bytes
2
Gray 2 Set
0
1
0
0
0
1
0
0
0
0
1
FRAME 2 Gray PWM Set 21
16 bytes
3
ANASET
0
1
0
0
0
1
1
0
0
1
0
Analog Circuit Set
32
3 bytes
4
SWINT
0
1
0
0
0
1
1
0
1
0
0
Software Initial
34
None
5
EPCTIN
0
1
0
1
1
0
0
1
1
0
1
Control EEPROM
CD 1 byte
6
EPCOUT
0
1
0
1
1
0
0
1
1
0
0
Cancel EEPROM
CC None
7
EPMWR
0
1
0
1
1
1
1
1
1
0
0
Write to EEPROM
FC None
8
EPMRD
0
1
0
1
1
1
1
1
1
0
1
Read from EEPROM
FD None
Note: The table above is for 8-bit interface. For the application of 16-bit interface, fill D15~8 with 0, and other
bits are just the same with the table above.
Ver 1.8
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ST7529
EXT= “0” or “1”
(1) Extension instruction disable (EXT IN) - Parameter Byte: None (30H)
Use the “EXT=0” command table
Command
A0
RD
WR
D7
D6
D5
D4
D3
D2
D1
D0
0
1
0
0
0
1
1
0
0
0
0
(2) Extension instruction enable (EXT OUT) - Parameter Byte: None (31H)
Use the extended command table EXT=”1”
Command
A0
RD
WR
D7
D6
D5
D4
D3
D2
D1
D0
0
1
0
0
0
1
1
0
0
0
1
EXT= “0”
(1) Display ON (DISON) - Parameter Byte: None (AFH)
It is to turn the display on. When the display is turned on, segment and common outputs are generated at the level
corresponding to the display data and display timing. As long as the sleep mode is selected, the display cannot be turned
on. Thus, whenever using this command, the sleep mode must be cancelled first.
Command
A0
RD
WR
D7
D6
D5
D4
D3
D2
D1
D0
0
1
0
1
0
1
0
1
1
1
1
(2) Display OFF (DISOFF) - Parameter Byte: None (AEH)
It is to forcibly turn the display off. As long as the display is turned off, every segment and common outputs are forced to
VSS level.
Command
A0
RD
WR
D7
D6
D5
D4
D3
D2
D1
D0
0
1
0
1
0
1
0
1
1
1
0
(3) Normal display (DISNOR) - Parameter Byte: None (A6H)
It is to normally highlight the display area without modifying contents of the display data RAM.
Command
A0
RD
WR
D7
D6
D5
D4
D3
D2
D1
D0
0
1
0
1
0
1
0
0
1
1
0
(4) Inverse display (DISINV) - Parameter Byte: None (A7)
It is to inversely highlight the display area without modifying contents of the display data RAM. This command does not
invert non-display areas in case of using partial display.
Command
Ver 1.8
A0
RD
WR
D7
D6
D5
D4
D3
D2
D1
D0
0
1
0
1
0
1
0
0
1
1
1
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ST7529
(5)
Common scan (COMSCN) - Parameter Byte: 1 (BBH)
It is to specify the common output scan direction. This command is for the convenience of wiring on the LCD panel.
A0
RD
WR
D7
D6
D5
D4
D3
D2
D1
D0
Function
Command
0
1
0
1
0
1
1
1
0
1
1
－
Parameter Byte 1 (PB1)
1
1
0
*
*
*
*
*
CD2 CD1 CD0
Common Scan direction
When 1/160 is selected for the display duty, pins and common output are scanned in the order shown below.
CD2 CD1 CD0
0
0
0
0
0
0
1
1
0
1
0
1
COM0 pin
0
0
79
79
Common scan direction
COM79 pin
COM80 pin
79
80
79
159
0
80
0
159
COM159 pin
159
80
159
80
Original graphic :
Com0
Com80
Com79
Com159
CD[2-0] = [0,0,0] (0
79, 80
159)
CD[2-0] = [0,0,1] (0
79, 159
80)
Com0
Com80
Com0
Com79
Com159
Com159
Com80
CD[2-0] = [0,1,0] (79
0, 80
159)
CD[2-0] = [0,1,1] (79
0, 159
80)
Com79
Com80
Com79
Com79
Com159
Com0
Com159
Com0
Com80
Figure 8.1.1 Common scan direction configuration
Ver 1.8
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ST7529
(6) Display control (DISCTRL) - Parameter Byte: 3 (CAH)
This command and succeeding parameters are used to perform the display timing-related setups. This command must be
selected before using SLPOUT. Do not change this command while the display is turned on.
A0
RD
WR
D7
D6
D5
D4
D3
D2
D1
D0
Command
0
1
0
1
1
0
0
1
0
1
0
Parameter Byte 1 (PB1)
1
1
0
*
*
*
0
0
CLD
0
0
Parameter Byte 2 (PB2)
1
1
0
*
*
Parameter Byte 3 (PB3)
1
1
0
*
*
Function
CL dividing ratio, F1 and
F2 drive pattern.
DT5 DT4 DT3 DT2 DT1 DT0 Drive duty
*
FI
LF3
LF2
LF1
LF0 FR inverse-set value
PB1 specifies the CL dividing ratio.
CLD: CL dividing ratio. They are used to change number of dividing stages of external or internal clock.
CLD=0: not divide, CLD=1: 2 divisions.
PB2 specifies the duty of the module on block basis. Initial: 00H
5
4
3
2
1
(Numbers of display lines)/4-1 = DT5 x 2 + DT4 x 2 + DT3 x 2 + DT2 x 2 + DT1 x 2 + DT0 x 2
0
For example, 1/128 duty 128/4-1=31 (DT5, DT4, DT3, DT2, DT1, DT0) = (0, 1, 1, 1, 1, 1)
PB3 specifies number of line cycles (range from 2 to 16) in a frame.
3
2
1
Number of line cycles-1 = LF3 x 2 + LF2 x 2 + LF1 x 2 + LF0 x 2
0
For example, 11 line cycles in a frame 11-1=10 (LF3, LF2, LF1, LF0) = (1, 0, 1, 0)
In the default, 11 line cycles in a frame is selected.
FI decides the inversion type of frame at the end of common scan cycle while the number of duty is not divisible by the
number of line cycles per frame. For example, in the application of 1/m duty and n line cycles in a frame set, the difference
of the choice in FI is shown as the following figure.
m = n x k + r, where m, n, k, and r are all whole numbers, and r is the remainder of m divided by n (r < n).
(7) Sleep in (SLPIN) - Parameter Byte: None (95H)
This command is to enter the SLEEP MODE.
Command
Ver 1.8
A0
RD
WR
D7
D6
D5
D4
D3
D2
D1
D0
0
1
0
1
0
0
1
0
1
0
1
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ST7529
(8) Sleep out (SLPOUT) - Parameter Byte: None (94H)
This command is to exit the SLEEP MODE.
A0
RD
WR
D7
D6
D5
D4
D3
D2
D1
D0
0
1
0
1
0
0
1
0
1
0
0
Command
(9) Line address set (LASET) - Parameter Byte: 2 (75H)
This command is to specify the line address area when MPU makes access to the display data RAM. As the addresses are
increased from the start to the end line in the line-direction scan, the column address is increased by 1 and the line address
return to the start line. Note that the start and end line must be a pair. Moreover, the relation “start line <end line” must be
maintained.
A0
RD
WR
D7
D6
D5
D4
D3
D2
D1
D0
Function
Command
0
1
0
0
1
1
1
0
1
0
1
－
Parameter Byte 1 (PB1)
1
1
0
SL7
SL6
SL5
SL4
SL3
SL2
SL1
SL0
Start Line
Parameter Byte 2 (PB2)
1
1
0
EL7
EL6
EL5
EL4
EL3
EL2
EL1
EL0
End Line
Note: The range of line address is 0 ~ 159.
(10) Column address set (CASET) - Parameter Byte: 2 (15H)
This command is to specify the column address area when MPU makes access to the display data RAM. As the addresses
are increased from the start to the end column in the column-direction scan, the line address is incremented by 1 and the
column address is returned to the start column. Note that the start and end line must be a pair. Moreover, the relation “start
column <end column” must be maintained.
A0
RD
WR
D7
D6
D5
D4
D3
D2
D1
D0
Function
Command
0
1
0
0
0
0
1
0
1
0
1
－
Parameter Byte 1 (PB1)
1
1
0
SC7
SC6
SC5
SC4
SC3
SC2
SC1
SC0 Start Column
Parameter Byte 2 (PB2)
1
1
0
EC7
EC6
EC5
EC4
EC3
EC2
EC1
EC0 End Column
Note: The range of column address is 0 ~ 84.
(11) Data scan direction (DATSDR) - Parameter Byte: 3 (BCH)
This command is to setup various parameters in the operations of display data stored on the built-in RAM by MPU.
A0
RD WR D7
D6
D5
D4
D3
D2
D1
D0
Function
Command
0
1
0
1
0
1
1
1
1
0
0
－
Parameter Byte 1 (PB1)
1
1
0
*
*
*
*
*
C/L
CI
LI
Normal/inverse display of address
and address scan direction.
Parameter Byte 2 (PB2)
1
1
0
*
*
*
*
*
*
*
Parameter Byte 3 (PB3)
1
1
0
*
*
*
*
*
CLR P1, P2, P3 arrangement
GS2 GS1 GS0 Gray-scale setup
PB1 is to specify the normal/inverse display of the line and column address and the address scanning direction.
LI: Normal/inverse direction of the line address. LI =0: Normal, LI =1: Inverse
CI: Normal/reverse direction of the column address. CI =0: Normal, CI =1: Reverse
C/L: Address-scan direction. C/L =0: In the column direction, C/L =1: In the line direction
Ver 1.8
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ST7529
(a) COMMAND #BCH, DATA #00H
(b) COMMAND #BCH, DATA #01H
(c) COMMAND #BCH, DATA #02H
(d) COMMAND #BCH, DATA #03H
Figure 8.1.2 Different RAM accessing setup under COMMAND #BBH, DATA #00H
(a) COMMAND #BCH, DATA #00H
(b) COMMAND #BCH, DATA #01H
(c) COMMAND #BCH, DATA #02H
(d) COMMAND #BCH, DATA #03H
Ver 1.8
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ST7529
(e) COMMAND #BCH, DATA #04H
(f) COMMAND #BCH, DATA #05H
(g) COMMAND #BCH, DATA #06H
(h) COMMAND #BCH, DATA #07H
Figure 8.1.2 Different RAM accessing setup under COMMAND #BBH, DATA #00H (continue)
(e) COMMAND #BCH, DATA #04H
(f) COMMAND #BCH, DATA #05H
(g) COMMAND #BCH, DATA #06H
(h) COMMAND #BCH, DATA #07H
Ver 1.8
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ST7529
PB2 is to change P1, P2, P3 arrangement of the segment output according to P1, P2, P3 arrangement on the LCD panel.
This command will set the writing position of data (P1, P2, P3) on the display memory to be changed or not.
CLR
SEG0
SEG1
SEG2
SEG3
SEG4
SEG5
SEG6
SEG7
…
SEG254
0
P1
P2
P3
P1
P2
P3
P1
P2
…
P3
1
P3
P2
P1
P3
P2
P1
P3
P2
…
P1
PB3 is to select desired gray scale display 2B3P mode or 3B3P mode.
GS2
0
0
GS1
0
1
GS0
1
0
Numbers of gray-scale
32 gray-scale 2Byte 3Pixel mode
32 gray-scale 3Byte 3Pixel mode
(12) Memory write (RAMWR) - Parameter Byte: Numbers of data written (5CH)
This command turns on the data entry mode when MPU writes data to the display memory. This command will always sets
the line and column address at the start address while executed. The following parameter byte rewrites contents of the
display data RAM and increases the line or column address automatically. The write mode is automatically cancelled if any
other command is entered.
1. 8-bit bus
Command
Parameter Byte 1 (PB1)
A0
0
1
RD RW
1
0
1
0
D7
0
D6
1
D5
0
D4
D3
D2
1
1
1
Data to be written
D1
0
D0
0
Function
－
Data to be written
2. 16-bit bus
A0 RD RW D15 D14 …
Command
0 1 0
*
*
…
Parameter Byte 1 (PB1) 1 1 0
D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
*
*
0
1
0
1
1
1
0
0
Data to be written
Function
Memory write
Write date
(13) Memory read (RAMRD) - Parameter Byte: Numbers of data read (5DH)
This command turns on the data read mode when MPU read data from the display memory. This command will always sets
the line and column address at the start address while executed. The contents of the display data RAM will be read in the
following parameter byte and increases the line or column address automatically. The data read mode is automatically
cancelled if any other command is entered.
1. 8-bit bus
Command
Parameter Byte 1 (PB1)
A0
0
1
RD
1
0
RW
0
1
D7
0
D6
1
D5
0
D4
D3
D2
1
1
1
Data to be read
D1
0
D0
1
Function
-Data to be read
2. 16-bit bus
Command
Parameter Byte 1 (PB1)
Ver 1.8
A0 RD RW D15 D14 …. D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
Function
0
1
0
* *
*
*
*
0
1
0
1
1
1
0
1 Memory read
1
0
1
Data to be read
Read data
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ST7529
(14) Partial in (PTLIN) - Parameter Byte: 2 (A8H)
This command is to specify the partial display area. It will turn on partial display of the screen (dividing screen by lines) to
save power. Since ST7529 processes the liquid crystal display signal on 4-line basis (block basis), the display and
no-display areas are also specified on 4-bit line (block basis).
Command
Parameter Byte 1 (PB1)
Parameter Byte 2 (PB2)
A0
0
1
1
RD
1
1
1
RW
0
0
0
D7
1
*
*
D6
0
*
*
D5
D4
D3
D2
D1
D0
Function
1
0
1
0
0
0
-PTS5 PTS4 PTS3 PTS2 PTS1 PTS0 Start block address
PTE5 PTE4 PTE3 PTE2 PTE1 PTE0 End block address
Only the address of the display block can be specified for the partial display. Do not specify an address not to be displayed
when scrolled.
(15) Partial out (PTLOUT) - Parameter Byte: none (A9H)
This command is to exit the PARTIAL DISPLAY MODE.
Command
A0
0
RD
1
RW
0
D7
1
D6
0
D5
1
D4
0
D3
1
D2
0
D1
0
D0
1
(16) Read modify write in (RMWIN) - Parameter Byte: none (E0H)
This command is used along with the (9) line address set command (LASET), (10) column address set command (CASET),
and (17) read modify write out command (RMWOUT). This function is for frequently modified data on a specific area, such
as blinking cursor. First, set a specific display area using the column and line address commands. Then, execute this
command to set the column and line addresses as the start address of the specific area. When this operation is complete,
the column and line address will not be modified by the display data read command. It is increased only when the display
data write command is executed. You can cancel this mode by entering the read modify write out or any other command.
Command
Ver 1.8
A0
0
RD
1
RW
0
D7
1
D6
1
D5
1
D4
0
45/86
D3
0
D2
0
D1
0
D0
0
2007/10/25
ST7529
(17) Read modify write out (RMWOUT) - Parameter Byte: none (EEH)
This command cancels the read modify write mode.
Command
A0
RD
RW
D7
D6
D5
D4
D3
D2
D1
D0
0
1
0
1
1
1
0
1
1
1
0
(18) Area scroll set (ASCSET) - Parameter Byte: 4 (AAH)
It is to scroll only the specified portion of the screen (dividing the screen by lines). This command specifies the scrolling
type of area, fixed area and scrolled area.
A0 RD RW D7 D6
D5
D4
D3
D2
D1
D0
0
Function
Command
0
1
0
1
0
1
0
1
0
1
Parameter Byte 1 (PB1)
1
1
0
*
*
TB5
TB4
TB3
TB2
TB1
TB0 Top block address
Parameter Byte 2 (PB2)
1
1
0
*
*
BB5
BB4
BB3
BB2
BB1
BB0 Bottom block address
Parameter Byte 3 (PB3)
1
1
0
*
*
Parameter Byte 4 (PB4)
1
1
0
*
*
Ver 1.8
--
NSB5 NSB4 NSB3 NSB2 NSB1 NSB0 Number of specified blocks
*
*
46/86
*
*
SCM1 SCM0 Area scroll mode
2007/10/25
ST7529
PB4: It is used to specify the scrolling mode.
Settings
SCM1 SCM0 Scrolling Mode
Number of specified blocks
Top block address (TB) Bottom block address (BB)
(NSB)
0
0
Center mode
Top(fixed area) height
= Top address
Bottom(fixed area) height
= 39-Bottom address
Bottom(fixed area) height
= 39-Bottom address
Bottom start address
= Specified number
Bottom start address
= Specified number
0
1
Top mode
0
1
0
Bottom mode
Top(fixed area) height
= Top address
39
39
1
1
Whole mode
0
39
39
Since ST7529 processes the liquid crystal display
signals on the four-line basis (block basis), fixed and
scrolled areas are also specified on the four-line basis
(block basis).
DDRAM address of the top fixed area is set in the block
th
address increasing direction starting with the 0 block.
DDRAM address of the bottom fixed area is set in the
block address decreasing direction starting with 39
st
block. The DDRAM address of other blocks fixed areas
are assigned to the scrolled + background areas.
PB1 is to specify the top block address of the scrolled +
th
background areas. Specify the 0 block for the top screen scroll or whole screen scroll.
th
PB2 specifies the bottom address of the scroll + background areas. Specify the 39 block for the bottom or whole screen
scroll. The relation that top block address < bottom block address must be maintained.
PB3 specifies a specific number of blocks {Numbers of (Top fixed area +Scroll area) block-1}. In the case of the bottom
scroll or whole screen scroll, the value is identical with PB2.
The user can turn on the area scroll function by executing the area scroll set command first and then specifying the display
start block of the scroll area with the scroll start set command.
(19) Scroll start address set (SCSTART) - Parameter Byte: 1 (ABH)
This command is to specify which line address of DDRAM to be the start line content shown on screen. Note that you must
execute this command after executing the area scroll set command. Scroll becomes available by dynamically changing the
start block address.
Command
Parameter Byte 1 (PB1)
A0
0
1
RD
1
1
RW
0
0
D7
1
*
D6
0
*
D5
1
SB5
D4
0
SB4
D3
1
SB3
D2
0
SB2
D1
1
SB1
D0
Function
1 -SB0 Start block address
Note : Don’t repeat “Area scroll set(AAH)” instruction when “Scroll start address set” is executed.
Ver 1.8
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ST7529
(20) Internal oscillation on (OSCON) - Parameter Byte: none (D1H)
This command turns on the internal oscillation circuit. It is valid only when the internal oscillation circuit CLS = HIGH.
Command
A0
0
RD
1
RW
0
D7
1
D6
1
D5
0
D4
1
D3
0
D2
0
D1
0
D0
1
D1
1
D0
0
(21) Internal oscillation off (OSCOFF) - Parameter Byte: none (D2H)
It turns off the internal oscillation circuit. The circuit is also turned off in the reset mode.
Command
A0
0
RD
1
RW
0
D7
1
D6
1
D5
0
D4
1
D3
0
D2
0
(22) Power control set (PWRCTRL) - Parameter Byte: 1 (20H)
This command is used to turn on or off the Booster circuit, voltage regulator circuit, and reference voltage.
Command
Parameter Byte 1 (PB1)
A0
0
1
RD
1
1
RW
1
0
D7
0
*
D6
0
*
D5
1
*
D4
0
0
D3
0
VB
D2
0
0
D1
0
VF
D0
0
VR
Function
-LCD drive power
VR turns on/off the reference voltage generation circuit. VR = “1”: ON, VR =” 0”: OFF
VF turns on/off the circuit voltage follower. VF = “1”: ON, VF =” 0”: OFF
VB: It turns on or off the Booster. VB = “1”: ON, VB =” 0”: OFF
(23) Electronic volume control (VOLCTRL) - Parameter Byte: 2 (81H)
The command is used to program the optimum LCD supply voltage V0. Refer to 7.10.2.
Command
Parameter Byte 1 (PB1)
Parameter Byte 2 (PB2)
A0
0
1
1
RD
1
1
1
RW
0
0
0
D7
1
*
*
D6
0
*
*
D5
D4
D3
D2
D1
D0
Function
0
0
0
0
0
1
-VPR5 VPR4 VPR3 VPR2 VPR1 VPR0 VPR[5:0]
*
*
*
VPR8 VPR7 VPR6 VPR[8:6]
With the VOLUP and VOLDOWN command the V0 voltage and therewith the contrast of the LCD can be adjusted.
(24) Increment electronic control (VOLUP) - Parameter Byte: none (D6H)
This command increments electronic control offset value of voltage regulator (V0) circuit by 1. Each step is 0.04V.
Command
A0
0
RD
1
RW
0
D7
1
D6
1
D5
0
D4
1
D3
0
D2
1
D1
1
D0
0
If you set the electronic control value to 111111, the control value is set to 000000 after this command has been executed.
(25) Decrement electronic control (VOLDOWN) - Parameter Byte: none (D7H)
This command decrements electronic control offset value of voltage regulator (V0) circuit by 1. Each step is 0.04V.
Command
A0
0
RD
1
RW
0
D7
1
D6
1
D5
0
D4
1
D3
0
D2
1
D1
1
D0
1
If you set the electronic control value to 000000, the control value is set to 111111 after this command has been executed.
(26) Reserved (82H)
Do not use this command.
Command
Ver 1.8
A0
0
RD
1
RW
0
D7
1
D6
0
D5
0
D4
0
48/86
D3
0
D2
0
D1
1
D0
0
2007/10/25
ST7529
(27) Read Register 1 (EPSRRD1) Command: 1 Parameter Byte: none (7CH)
Execute the EPSRRD1 and STREAD (Status Read) commands in succession to read the Electronic Control value.
Command
A0
0
RD
1
RW
0
D7
0
D6
1
D5
1
D4
1
D3
1
D2
1
D1
0
D0
0
Execute the Status Read command immediately after this command and execute the NOP command after the STREAD
(Status Read) command.
(28) Read Register 2 (EPSRRD2) Command: 1 Parameter Byte: none (7DH)
Execute the EPSRRD2 and STREAD (Status Read) commands in succession to read the built-in resistance ratio.
Command
A0
0
RD
1
RW
0
D7
0
D6
1
D5
1
D4
1
D3
1
D2
1
D1
0
D0
1
Execute the Status Read command immediately after this command and execute the NOP(Reset) command after the
STREAD (Status Read) command.
(29) Non-operating (NOP) - Parameter Byte: none (25H)
This command does not affect the operation but has the function of canceling the IC test mode. Thus, it is recommended to
enter it periodically to prevent malfunctioning due to noise and so on.
Command
A0
0
RD
1
RW
0
D7
0
D6
0
D5
1
D4
0
D3
0
D2
1
D1
0
D0
1
(30) Status read (STREAD) - Parameter Byte: none
The command is to read the internal condition of the IC. One status can be displayed depending on the setting status after
reset or after NOP operation.
Command
A0
0
RD
0
RW
D7
D6
1 Status data
D5
D4
D3
D2
D7: Area scroll mode
Refer to SCM1 (ASCSET)
D6: Area scroll mode
Refer to SCM0 (ASCSET)
D5: RMW on/off
0 : Out
1 : In
D4: Scan direction
0 : Column
1 : Line
D3: Display ON/OFF
0 : OFF
1 : ON
D2: EEPROM access
0: OutAccess
1: InAccess
D1: Display normal/inverse
0 : Inverse
1 : Normal
D0: Partial display
0 : OFF
1 : ON
D1
D0
(31) Initial code (1) (EPINT) Command: 1; Parameter: 1 (07H)
A0
RD
RW
D7
D6
D5
D4
D3
D2
D1
D0
Function
Command
0
1
0
0
0
0
0
0
1
1
1
07H
Parameter(P1)
1
1
0
0
0
0
1
1
0
0
1
19H
This command is used for EEPROM internal ACK signal generating ,suggest using this command before EEPROM
read/write operation . This command improve the EEPROM internal ACK signal under unstable power system.
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EXT=”1”
The ST7529 applies 16-gray level and 2 FRC to achieve 32-gray scale display. Every gray level is in the strength controlled
by 31-PWM (5-bit). The following 2 commands are to set the gray scale value.
(1)
Set Gray 1 value (Gray 1 set) - Parameter Byte: 16 (20H)
Command
A0 RD WR D7 D6 D5
D4
D3
D2
D1
D0
0
Function
Gray1 Set
0
1
0
0
0
1
0
0
0
0
Parameter Byte 1 (PB1)
1
1
0
*
*
*
G0F14
G0F13
G0F12
G0F11
G0F10 Set Gray level 0 at odd frames
Parameter Byte 2 (PB2)
1
1
0
*
*
*
G1F14
G1F13
G1F12
G1F11
G1F10 Set Gray level 1 at odd frames
Parameter Byte 14 (PB14)
1
1
0
*
*
*
G13F14 G13F13 G13F12 G13F11 G13F10 Set Gray level 13 at odd frames
Parameter Byte 16 (PB16)
1
1
0
*
*
*
G15F14 G15F13 G15F12 G15F11 G15F10 Set Gray level 15 at odd frames
(2)
ODD FRAME Gray PWM Set
Set Gray 2 value (Gray 2 set) - Parameter Byte: 16 (21H)
Command
A0 RD WR D7 D6 D5
D4
D3
D2
D1
D0
1
Function
Gray1 Set
0
1
0
0
0
1
0
0
0
0
Parameter Byte 1 (PB1)
1
1
0
*
*
*
G0F24
G0F23
G0F22
G0F21
G0F20 Set Gray level 0 at even frames
Parameter Byte 2 (PB2)
1
1
0
*
*
*
G1F24
G1F23
G1F22
G1F21
G1F20 Set Gray level 1 at even frames
Parameter Byte 14 (PB14)
1
1
0
*
*
* G13F24 G13F23 G13F22 G13F21 G13F20 Set Gray level 13 at even frames
Parameter Byte 16 (PB16)
1
1
0
*
*
* G15F24 G15F23 G15F22 G15F21 G15F20 Set Gray level 15 at even frames
(3)
EVEN FRAME Gray PWM Set
Analog circuit set (ANASET) – Parameter Byte: 3 (32H)
A0
RD
WR
D7
D6
D5
D4
D3
D2
D1
D0
Function
Command
0
1
0
0
0
1
1
0
0
1
0
Parameter Byte 1 (PB1)
1
1
0
*
*
*
*
*
Parameter Byte 2 (PB2)
1
1
0
*
*
*
*
*
*
BE1
BE0 Booster Efficiency Set
Parameter Byte 3 (PB3)
1
1
0
*
*
*
*
*
BS2
BS1
BS0 Bias setting
－
OSF2 OSF1 OSF0 OSC frequency Adjustment
PB1: Oscillator frequency adjustment
OSF2
0
1
0
1
0
1
0
1
OSF1
0
0
1
1
0
0
1
1
OSF0
0
0
0
0
1
1
1
1
Frequency (KHz)
12.7 (Default)
13.2
14.3
15.7
17.3
19.3
21.9
25.4
Condition : 1/160 duty, fCL(Hz) = Frame frequency x (duty + 1dummy )
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PB2: Booster Efficiency set
BE1
BE0 Frequency on booster capacitors (Hz)
0
0
3K
0
1
6K (Default)
1
0
12K
1
1
24K
PB3: Select LCD bias ratio of the voltage required for driving the LCD.
BS2
0
0
0
0
1
1
1
1
(4)
BS1
0
0
1
1
0
0
1
1
LCD bias
1/14
1/13
1/12
1/11
1/10
1/9
1/7
1/5
Software Initial (SWINT) - Parameter Byte: None (34H)
Command
(5)
BS0
0
1
0
1
0
1
0
1
A0
0
RD
1
RW
0
D7
0
D6
0
D5
1
D4
1
D3
0
D2
1
D1
0
D0
0
Control EEPROM (EPCTIN) - Parameter Byte: 1 (CDH)
Command
Parameter Byte 1 (PB1)
A0
0
1
RD
1
1
RW
0
0
D7
1
0
D6
1
0
D5
0
EEWR
D4
0
0
D3
1
0
D2
1
0
D1
0
0
D0
1
0
When EEWR = “1”, EEPROM will be Write Enable; when EEWR = “0”, EEPROM will be Read Enable.
(6)
Cancel EEPROM Command (EPCOUT) - Parameter Byte: None (CCH)
This command is to cancel the EEPROM Read/Write Enable.
Command
(7)
A0
0
RD
1
RW
0
D7
1
D6
1
D5
0
D4
0
D3
1
D2
1
D1
0
D0
0
D2
1
D1
0
D0
0
D2
1
D1
0
D0
1
Write data to EEPROM (EPMWR) - Parameter Byte: None (FCH)
This command is to Write data to EEPROM.
Command
(8)
A0
0
RD
1
RW
0
D7
1
D6
1
D5
1
D4
1
D3
1
Read data from EEPROM (EPMRD) - Parameter Byte: None (FDH)
This command is to Read data from EEPROM.
Command
Ver 1.8
A0
0
RD
1
RW
0
D7
1
D6
1
D5
1
D4
1
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8.2 Referential Instruction Setup Flow
8.2.1 EEPROM Setting Flow
The ST7529 provide the Write and Read function to write the Electronic Control value into and read them from the built-in
EEPROM. Using the Write and Read functions, you can store these values appropriate to each LCD panel. This function is
very convenient for user in setting from some different panel’s voltage. But using this function must attention the setting
procedure. Please see the following diagram.
Note:1.
When “Writing” value to EEPROM, the voltage of VOUTIN must be more than 18V.
EC Value Adjustment Flow
Make sure the Action:
End of Initialization Flow
Initial Code(1)
OSC On
Power Control On
Wait for 100ms
Write into EEPROM
(command FCH)
Increase or decrease EC value
( command D6H or D7H )
( get the V0 value you need )
Wait for 100ms
Close Extension mode
(command 30H)
Disable EEPROM
(command CCH)
Display Off
(command AEH)
Close Extension mode
(command 30H)
Initial Code(1)
(command 07H)
(parameter 19H)
Display On
(command AFH)
Open Extension mode
(command 31H)
Turn off the power
Enable EEPROM
(command CDH)
(parameter 20H)
Wait for 100ms
Turn on the power
Check the EC value
Figure 8.2.1.1 Flow of EC value adjustment and writing into EEPROM
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Note: When “Reading” value from EEPROM, the voltage of VOUTIN must be more than 6V.
Ext=0
(command 30H)
Initial code(1)
(command 07H)
(parameter 19H)
Ext=1
(command 31H)
control EEPROM
(command CDH)
(parameter 00H)
Wait for 100ms
Write to EEPROM
(command FDH)
Wait for 100ms
cancel EEPROM
(command CCH)
Ext=0
(command 30H)
Figure 8.2.1.2 EEPROM Reading flow
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Example：
：EEPROM Read Operation
void ReadEEPROM( void )
{
Write( COMMAND, 0x0030 );
Write( COMMAND, 0x0007 );
Write( DATA, 0x0019 );
Write( COMMAND, 0x0031 );
Write( COMMAND, 0x00CD );
Write( DATA, 0x0000 );
Delay( 100ms );
Write( COMMAND, 0x00FD );
Delay( 100ms );
Write( COMMAND, 0x00CC );
Write( COMMAND, 0x0030 );
// Ext = 0
// Initial code (1)
// Ext = 1
// EEPROM ON
// Entry "Read Mode"
// Waite for EEPROM Operation ( 100ms )
// Start EEPROM Reading Operation
// Waite for EEPROM Operation ( 100ms )
// Exist EEPORM Mode
// Ext = 0
}
Example：
：EEPROM Write Operation
void WriteEEPROM( void )
{
Write( COMMAND, 0x0030 );
Write( COMMAND, 0x00AE );
Write( COMMAND, 0x0007 );
Write( DATA, 0x0019 );
Write( COMMAND, 0x0031 );
Write( COMMAND, 0x00CD );
Write( DATA, 0x0020 );
Delay( 100ms );
Write( COMMAND, 0x00FC );
Delay( 100ms );
Write( COMMAND, 0x00CC );
Write( COMMAND, 0x0030 );
Write( COMMAND, 0x00AF );
// Ext = 0
// Display OFF
// Initial code(1)
// Ext = 1
// EEPROM ON
// Entry "Write Mode"
// Waite for EEPROM Operation ( 100ms )
// Start EEPROM Writing Operation
// Waite for EEPROM Operation ( 100ms )
// Exist EEPROM Mode
// Ext = 0
// Display ON
}
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8.2.2 Initializing with the Built-in Power Supply Circuits
Figure 8.2.2.1 Initializing with the Built-in Power Supply Circuits
When Power-ON (VDD/VDD2 goes from low to high), please follow the sequence shown below. If not, some unpredictable
result may occur.
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Example：
：Initial code for 255X160
void ST7529_Init( void )
{
Write( COMMAND, 0x0030 );
//Ext = 0
Write( COMMAND, 0x0094 );
//Sleep Out
Write( COMMAND, 0x00D1 );
Write( COMMAND, 0x0020 );
Write( DATA, 0x0008 );
Delay( 1ms );
Write( COMMAND, 0x0020 );
Write( DATA, 0x000B );
//OSC On
//Power Control Set
//Booster Must Be On First
Write( COMMAND, 0x0081 );
Write( DATA, 0x0004 );
Write( DATA, 0x0004 );
//Electronic Control
//Vop=14.0V
Write( COMMAND, 0x00CA );
Write( DATA, 0x0000 );
Write( DATA, 0x0027 );
Write( DATA, 0x0000 );
//Display Control
//CL=X1
//Duty=160
//FR Inverse-Set Value
Write( COMMAND, 0x00A6 );
// Normal Display
Write( COMMAND, 0x00BB );
Write( DATA, 0x0001 );
//COM Scan Direction
// 0→79 159→80
Write( COMMAND, 0x00BC );
Write( DATA, 0x0000 );
Write( DATA, 0x0000 );
Write( DATA, 0x0001 );
//Data Scan Direction
//Normal
//RGB Arrangement
//65K COLOR
Write( COMMAND, 0x0075 );
Write( DATA, 0x0000 );
Write( DATA, 0x009F );
//Line Address Set
//Start Line=0
//End Line =159
Write( COMMAND, 0x0015 );
Write( DATA, 0x0000 );
Write( DATA, 0x0054 );
//Column Address Set
//Start Column=0
//End Column =84
Write( COMMAND, 0x0031 );
//Ext = 1
Write( COMMAND, 0x0032 );
Write( DATA, 0x0000 );
Write( DATA, 0x0001 );
Write( DATA, 0x0000 );
//Analog Circuit Set
//OSC Frequency =000 (Default)
//Booster Efficiency=01(Default)
//Bias=1/14
Write( COMMAND, 0x0034 );
//Software Initial
ReadEEPROM();
//Read EEPROM Flow
Write( COMMAND, 0x0030 );
//Ext = 0
Write( COMMAND, 0x00AF );
//Display On
//Power Control Set
//Booster, Regulator, Follower ON
}
NOTE:
Microprocessor interface pins should not be floating in any operation mode.
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8.2.3 Data Displaying
Normal State
Display Data RAM Addressing by Instruction
[Data Control: BCH]
[Set Line Address: 75H]
[Set Column Address: 15H]
[Entry Memory Write Mode: 5CH]
Display Data Write
[Display Data Write]
No
End of Display Data Write ?
Yes
End of Data Display
Figure 8.2.3.1 Data Displaying
Example：Display for 255X160
void Display( char *pattern )
{
unsigned char i, j;
Write( COMMAND, 0x0030 );
Write( COMMAND, 0x0015 );
Write( DATA, 0x0000 );
Write( DATA, 0x0054 );
Write( COMMAND, 0x0075 );
Write( DATA, 0x0000 );
Write( DATA, 0x009F);
Write( COMMAND, 0x005C )
for( j = 0; j < 160 ; j++ )
For( i = 0 ; i < 85 ; i++ )
Write( DATA, pattern[j * 160 + i] );
// Ext = 0
// Column address set
// From column0 to column254
// Page address set
// From line0 to line159
// Entry Memory Write Mode
// Display Data Write
}
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8.2.4 Partial Display In/Out
Figure 8.2.4.1 Partial Display In/Out
Example：Partial Display In/Out Operation
void PartialIn( unsigned char start_block, unsigned char end_block )
{
Write( COMMAND, 0x0030 );
// Ext = 0
Write( COMMAND, 0x00A8);
// Partial Display In Function
Write( DATA, start_block );
// Start Block
Write( DATA, end_block );
// End Block
}
void PartialOut( void )
{
Write( COMMAND, 0x0030 );
Write( COMMAND, 0x00A9 );
// Ext = 0
// Partial Display Out Function
}
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extern unsigned char *display_pattern;
void main()
{
PartialIn( 11, 18 );
// entry partial display mode
Windowing( 0, 11*4, 84, 18*4 );
PartialDisplay( display_pattern );
.
.
.
PartialOut();
// set the page and column range
// Fill the data into partial display area
// Out of partial display mode
}
8.2.5 Scroll Display
Figure 8.2.5.1 Scroll Display
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Example：Screen Scroll Operation
void CenterScreenScroll( void )
{
Write( COMMAND, 0x0030 );
Write( COMMAND, 0x00AA);
Write( DATA, 0x000A );
Write( DATA, 0x0014 );
Write( DATA, 0x0014 );
Write( DATA, 0x0000 );
// Ext = 0
// Partial Display In Function
// Top_Block=10
// Bottom_Block=20
// Number of Specified Blocks=Bottom_Block=20
// Area Scroll Type=Center Screen Scroll
ScrollUp() or ScrollDown();
// Scroll Up or Scroll Down
}
void TopScreenScroll( void )
{
Write( COMMAND, 0x0030 );
Write( COMMAND, 0x00AA);
Write( DATA, 0x0000 );
Write( DATA, 0x0014 );
Write( DATA, 0x0014 );
Write( DATA, 0x0001 );
// Ext = 0
// Partial Display In Function
// Top_Block=0
// Bottom_Block=20
// Number of Specified Blocks=Bottom_Block=20
// Area Scroll Type=Top Screen Scroll
ScrollUp() or ScrollDown();
// Scroll Up or Scroll Down
}
void BottomScreenScroll( void )
{
Write( COMMAND, 0x0030 );
Write( COMMAND, 0x00AA);
Write( DATA, 0x000A );
Write( DATA, 0x0019 );
Write( DATA, 0x0019 );
Write( DATA, 0x0002 );
// Ext = 0
// Partial Display In Function
// Top_Block=10
// Bottom_Block=25
// Number of Specified Blocks=Bottom_Block=25
// Area Scroll Type=Bottom Screen Scroll
ScrollUp() or ScrollDown();
// Scroll Up or Scroll Down
}
void WholeScreenScroll( void )
{
Write( COMMAND, 0x0030 );
Write( COMMAND, 0x00AA);
Write( DATA, 0x0000 );
Write( DATA, 0x0019 );
Write( DATA, 0x0019 );
Write( DATA, 0x0003 );
// Ext = 0
// Partial Display In Function
// Top_Block=0
// Bottom_Block=25
// Number of Specified Blocks=Bottom_Block=25
// Area Scroll Type=Whole Screen Scroll
ScrollUp() or ScrollDown();
// Scroll Up or Scroll Down
}
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void ScrollUp( void )
{
Write( COMMAND, 0x0030 );
Write( COMMAND, 0x00AB);
Write( DATA, Top_Block);
Delay();
// Ext = 0
// Scroll Start Set
// Start Block Address=Top_Block
// Delay
Write( COMMAND, 0x00AB);
Write( DATA, Top_Block +1 );
Delay();
// Scroll Start Set
// Start Block Address= Top_Block+1
// Delay
Write( COMMAND, 0x00AB);
Write( DATA, Top_Block +2 );
Delay();
……
……
Write( COMMAND, 0x00AB);
Write( DATA, Bottom_Block );
Delay();
// Scroll Start Set
// Start Block Address= Top_Block +2
// Delay
// Scroll Start Set
// Start Block Address= Bottom_Block
// Delay
}
void ScrollDown( void )
{
Write( COMMAND, 0x0030 );
Write( COMMAND, 0x00AB);
Write( DATA, Bottom_Block);
Delay();
// Ext = 0
// Scroll Start Set
// Start Block Address= Bottom_Block
// Delay
Write( COMMAND, 0x00AB);
Write( DATA, Bottom_Block -1 );
Delay();
// Scroll Start Set
// Start Block Address= Bottom_Block -1
// Delay
Write( COMMAND, 0x00AB);
Write( DATA, Bottom_Block -2 );
Delay();
……
……
Write( COMMAND, 0x00AB);
Write( DATA, Top _Block );
Delay();
// Scroll Start Set
// Start Block Address= Bottom_Block -2
// Delay
// Scroll Start Set
// Start Block Address= Top_Block
// Delay
}
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8.2.6 Read-Modify-Write Cycle
Figure 8.2.6.1 Read-Write-Modify Cycle
Example：Read-Write-Modify Cycle
void ReadModifyWriteIn( void )
{
Write( COMMAND, 0x0030 );
Write( COMMAND, 0x00E0 );
}
void ReadModifyWriteOut( void )
{
Write( COMMAND, 0x0030 );
Write( COMMAND, 0x00EE );
}
Ver 1.8
// Ext = 0
// Entry the Read-Modify-Write mode
// Ext = 0
// Out of partial display mode
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extern unsigned char *display_pattern;
void main() (For 2B3P 32Gray Scale Display)
{
unsigned pixel1,pixel2, i;
Windowing( 11, 31, 80, 50 );
// set the page and column range
ReadModifyWriteIn();
// entry the Read-Modify-Write mode
for( i = 0 ; i < 1000 ; i++ )
{
Read( DATA );
Pixel1= Read( DATA );
Pixel2= Read( DATA );
Pixel1 = pixel1 & 0x07FF;
Pixel2 = pixel2 & 0x07FF;
Write( DATA, pixel1 );
Write( DATA, pixel2 );
}
ReadModifyWriteOut();
// For dummy read
// Pixel read
// Pixel read
// Pixel modify
// Pixel modify
// Out of Read-Modify-Write mode
}
void main() (For 3B3P 32Gray Scale Display)
{
unsigned pixel1,pixel2,pixel3, i;
Windowing( 11, 31, 80, 50 );
// set the page and column range
ReadModifyWriteIn();
// entry the Read-Modify-Write mode
for( i = 0 ; i < 1000 ; i++ )
{
Read( DATA );
Pixel1= Read( DATA );
Pixel2= Read( DATA );
Pixel3= Read( DATA );
Pixel1 = pixel1 & 0x07FF;
Pixel2 = pixel2 & 0x07FF;
Pixel3 = pixel3 & 0x07FF;
Write( DATA, pixel1 );
Write( DATA, pixel2 );
Write( DATA, pixel3 );
}
ReadModifyWriteOut();
// For dummy read
// Pixel read
// Pixel read
// Pixel read
// Pixel modify
// Pixel modify
// Pixel modify
// Out of Read-Modify-Write mode
}
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8.2.7 Display On / OFF
Normal State
Display OFF State
[Set Display OFF : AEH]
[Set Display ON : AFH]
End of Display OFF
End of Display ON
Figure 8.2.7.1 Display Off
Figure 8.2.7.2 Display On
Example：Display OFF Operation
void DisplayOff( void )
{
Write( COMMAND, 0x0030 );
Write( COMMAND, 0x00AE );
// Ext = 0
// Display Off
}
Example：Display ON Operation
void DisplayOn( void )
{
Write( COMMAND, 0x0030 );
Write( COMMAND, 0x00AF );
// Ext = 0
// Display On
}
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8.2.8 Power OFF
Normal State
Execute the “Sleep In Flow”
Keeping /RES Pin =“L”
Power Off (VDD-VSS)
End of Power OFF
VDD
/RES
tR
Internal
State
Normal State
Execute “Sleep In Flow”
Reset
tR > 12 ms
Power Off
After Sleep In Flow, keep the /RES = Low
Figure 8.2.8.1 Power off
Note：
：The sequence is that users must set the VDD to low after keeping the /RES=low time longer than
12ms.
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9. LIMITING VALUES
In accordance with the Absolute Maximum Rating System; see notes 1 and 2.
Parameter
Power Supply Voltage
Symbol
VDD, VDD1
Conditions
Unit
–0.5 ~ +4.0
V
-0.5 ~ +4.0
V
VDD2, VDD3, VDD4,
Power supply voltage
VDD5
Power supply voltage (VDD standard)
VLCDIN, VLCDOUT
–0.5 ~ +20
V
Power supply voltage (VDD standard)
V0,V1, V2, V3, V4
0.3 to VLCDIN
V
Input voltage
VIN
–0.5 to VDD+0.5
V
Output voltage
VO
–0.5 to VDD+0.5
V
Operating temperature(Die)
TOPR
–30 to +85
°C
Storage temperature(Die)
TSTR
–40 to +125
°C
Notes
1. Stresses above those listed under Limiting Values may cause permanent damage to the device.
2. Parameters are valid over operating temperature range unless otherwise specified. All voltages are with respect to
VSS unless otherwise noted.
3. Insure that the voltage levels of V1, V2, V3, and V4 are always such that
VLCDIN ≧ V0 ≧ V1 ≧ V2 ≧ V3 ≧ V4 ≧ Vss
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10. HANDLING
Inputs and outputs are protected against electrostatic discharge in normal handling. However, to be totally safe, it is
desirable to take normal precautions appropriate to handling MOS devices (see “Handling MOS devices”).
11. DC CHARACTERISTICS
Ta = -30℃ to +85℃
Rating
Item
Symbol
Applicable
Condition
Units
Min.
Typ.
Max.
2.4
-
3.3
Operating Voltage (1)
VDD
VDD1
Operating Voltage (2)
VDD2
VDD3
VDD4
VDD5
(Relative to VSS)
2.4
-
High-level Input Voltage
VIH
-
0.7 VDD
Low-level Input Voltage
VIL
-
High-level Output Current
IOH
Low-level Output Current
IOL
VDD=2.7V
VOH =2.2V
VDD=2.7V
VOL = 0.5V
Input leakage current
ILI
VIN = VDD or VSS
-
Pin
V
VDD*1
VDD1
3.3
V
VDD2
VDD3
VDD4
VDD5
-
VDD
V
*2
VSS
-
0.3 VDD
V
*2
0.5
-
-
mA
*3
-
-
-0.5
mA
*3
-1.0
-
1.0
µA
*4
-
1.4
2.0
KΩ
Ta = 25°C
Liquid Crystal Driver ON
(Relative To VSS)
SEGn
RON
Resistance
V0 = 14.0V
COMn *5
VDD = 2.7V
Internal Oscillator
Oscillator
External Input
fOSC 1/160 duty
fCL
Frequency
Ta = 25°C
-
12.4
26
kHz
CL*6
-
12.4
26
kHz
CL
-
78
160
Hz
SEGn
VDD = 2.7V
Frame frequency fFRAME
CLD = 0
Rating
Item
Internal Power
Input voltage
Symbol
Condition
Min.
Typ.
Max.
Units
Applicable Pin
VDD
(Relative To VSS)
2.4
-
3.3
V
VDD
VLCDOUT
(Relative To VSS)
-
-
18
V
VLCDOUT
VLCDIN
(Relative To VSS)
-
-
18
V
VLCDIN
Supply Step-up output
voltage Circuit
Voltage regulator
Circuit Operating
Voltage
* Recommended LCD VOP voltage is 12V~14V .
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Dynamic Consumption Current : During Display, with the Internal Power Supply ON.
Rating
Test pattern
Symbol
Units
Notes
600
µA
*7
10
µA
-
Min.
Typ.
Max.
ISS
VDD = 2.8 V,
V0 – VSS = 16.0 V
Booster = 6x
Bias = 1/12
Duty = 1/160
Bare chip
Cap = 1.0uF
-
460
ISS
Ta = 25°C
-
-
Display Pattern
(checkerboard)
Power Down
Condition
Notes to the DC characteristics
1. The maximum possible VLCD voltage that may be generated is dependent on voltage, temperature and (display) load,
and internal clock
2. Power-down mode. During power down all static currents are switched off.
3. If external VLCD, the display load current is not transmitted to IDD.
4. VLCD external voltage applied to VLCDIN pin; VLCDIN disconnected from VLCDOUT
References for items marked with *
*1. While a broad range of operating voltages is guaranteed, performance cannot be guaranteed if there are sudden
fluctuations to the voltage while the MPU is being accessed.
*2. The A0, D0 to D5, D6 (SI), D7 (SCL),D8 to D15 /RD(E), /WR(R/W), XCS,CL , RST .
*3. The D0 to D7, D8 to D15 and CL.
*4. The A0,/RD (E), /WR(R/W), XCS, CLS, CL, RST , IF1 to IF3, M0, M1.
*5. These are the resistance values for when a 0.1 V voltage is applied between the output terminal SEGn or COMn and
the various power supply terminals (V1, V2, V3, and V4). These are specified for the operating voltage range.
RON = 0.1 V /∆I (Where ∆I is the current that flows when 0.1 V is applied while the power supply is ON.)
*6. The relationship between the oscillator frequency and the frame rate frequency.
*7. It indicates the current consumed on ICs alone when the internal oscillator circuit and display are turned on.
ST7529 I/O PIN ITO Resister Limitation
PIN Name
Ver 1.8
ITO Resister
IF1~IF3, M0, M1, CLS
No Limitation
VREF, T0~T10, TCAP, CL
Floating
VDD,VDD1~5,VSS,VSS1,VSS2,VSS4, VLCDIN, VLCDOUT, CxP, CxN
<100Ω
V0IN, V0OUT, V1, V2, V3, V4
<500Ω
A0, RW_WR, E_RD, XCS, D0 …D15, SCL, SI
<1kΩ
RST
<10kΩ
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12. AC CHARACTERISTICS
System Bus Read/Write Characteristics 1 (For the 8080 Series MPU)
A0
tAW8
tAH8
XCS
tCYC8
tCCLR,tCCLW
WR, RD
tCCHR,tCCHW
tDH8
tDS8
D0 to D7
(Write)
tACC8
tOH8
D0 to D7
(Read)
Figure 39.
(VDD = 3.3V , Ta = –30 to 85°C, Die)
Rating
Item
Signal
Address hold time
Address setup time
A0
System cycle time
Enable L pulse width (WRITE)
Symbol
Condition
Units
Min.
Max.
20
-
tAH8
-
tAW8
-
20
-
tCYC8
-
200
-
tCCLW
-
100
-
tCCHW
-
100
-
tCCLR
-
100
-
tCCHR
-
100
-
tDS8
-
150
-
tDH8
-
20
-
tACC8
CL = 100 pF
-
40
tOH8
CL = 100 pF
-
30
WR
Enable H pulse width (WRITE)
Enable L pulse width (READ)
ns
RD
Enable H pulse width (READ)
WRITE Data setup time
WRITE Address hold time
D0 to D7
READ access time
READ Output disable time
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(VDD = 2.7 V , Ta = –30 to 85°C ,Die)
Rating
Item
Signal
Address hold time
Address setup time
A0
System cycle time
Enable L pulse width (WRITE)
Symbol
Condition
Units
Min.
Max.
tAH8
-
20
-
tAW8
-
30
-
tCYC8
-
250
-
tCCLW
-
150
-
tCCHW
-
100
-
tCCLR
-
150
-
tCCHR
-
100
-
tDS8
-
200
-
tDH8
-
20
-
tACC8
CL = 100 pF
-
40
tOH8
CL = 100 pF
-
30
WR
Enable H pulse width (WRITE)
Enable L pulse width (READ)
ns
RD
Enable H pulse width (READ)
WRITE Data setup time
WRITE Address hold time
D0 to D7
READ access time
READ Output disable time
*1 The input signal rise time and fall time (tr, tf) is specified at 15 ns or less. When the system cycle time is extremely fast,
(tr +tf) ≦ (tCYC8 – tCCLW – tCCHW) for (tr + tf) ≦ (tCYC8 – tCCLR – tCCHR) are specified.
*2 All timing is specified using 20% and 80% of VDD as the reference.
*3 tCCLW and tCCLR are specified as the overlap between XCS being “L” and WR and RD being at the “L” level.
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System Bus Read/Write Characteristics 1 (For the 6800 Series MPU)
A0
R/W
tAW6
tAH6
XCS
tCYC6
tEWLR,tEWLW
E, RD
tEWHR,tEWHW
tDH6
tDS6
D0 to D7
(Write)
tACC6
tOH6
D0 to D7
(Read)
Figure 40.
(VDD = 3.3 V , Ta = –30 to 85°C,Die)
Rating
Item
Signal
Address hold time
Symbol
Condition
Units
Min.
Max.
tAH6
-
20
-
Address setup time
tAW6
-
20
-
System cycle time
tCYC6
-
200
-
tEWLW
-
100
-
tEWHW
-
100
-
tEWLR
-
100
-
tEWHR
-
100
-
tDS6
-
150
-
tDH6
-
20
-
tACC6
CL = 100 pF
-
40
tOH6
CL = 100 pF
-
30
A0
Enable L pulse width (WRITE)
E
Enable H pulse width (WRITE)
Enable L pulse width (READ)
ns
RD
Enable H pulse width (READ)
WRITE Data setup time
WRITE Address hold time
D0 to D7
READ access time
READ Output disable time
Ver 1.8
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(VDD = 2.7V , Ta =–30 to 85°C, Die)
Rating
Item
Signal
Address hold time
Symbol
Condition
Units
Min.
Max.
tAH6
-
20
-
Address setup time
tAW6
-
30
-
System cycle time
tCYC6
-
250
-
tEWLW
-
150
-
tEWHW
-
100
-
tEWLR
-
150
-
tEWHR
-
100
-
tDS6
-
200
-
tDH6
-
20
-
tACC6
CL = 100 pF
-
40
tOH6
CL = 100 pF
-
30
A0
Enable L pulse width (WRITE)
E
Enable H pulse width (WRITE)
Enable L pulse width (READ)
ns
RD
Enable H pulse width (READ)
WRITE Data setup time
WRITE Address hold time
D0 to D7
READ access time
READ Output disable time
*1 The input signal rise time and fall time (tr, tf) is specified at 15 ns or less. When the system cycle time is extremely fast,
(tr +tf) ≦ (tCYC6 – tEWLW – tEWHW) for (tr + tf) ≦ (tCYC6 – tEWLR – tEWHR) are specified.
*2 All timing is specified using 20% and 80% of VDD as the reference.
*3 tEWLW and tEWLR are specified as the overlap between XCS being “L” and E.
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SERIAL INTERFACE (4-Line Interface)
tCSS
t CSH
XCS
tSAS
tSAH
A0
tSCYC
tSLW
SCL
tSHW
tf
tr
tSDS
tSDH
SI
Fig 41.
(VDD=3.3V,Ta= –30 to 85°C,Die )
Rating
Item
Signal
Serial Clock Period
SCL “H” pulse width
SCL
SCL “L” pulse width
Address setup time
Symbol
Condition
Units
Min.
Max.
tSCYC
-
100
-
tSHW
-
50
-
tSLW
-
50
-
tSAS
-
40
-
tSAH
-
30
-
tSDS
-
30
-
tSDH
-
30
-
tCSS
-
20
-
tCSH
-
50
-
A0
Address hold time
Data setup time
ns
SI
Data hold time
CS-SCL time
XCS
CS-SCL time
(VDD=2.7V,Ta= –30 to 85°C,Die )
Rating
Item
Signal
Serial Clock Period
SCL “H” pulse width
SCL
SCL “L” pulse width
Address setup time
Symbol
Condition
Units
Min.
Max.
tSCYC
-
11 0
-
tSHW
-
60
-
tSLW
-
50
-
tSAS
-
50
-
tSAH
-
40
-
tSDS
-
40
-
tSDH
-
40
-
tCSS
-
30
-
tCSH
-
60
-
A0
Address hold time
Data setup time
ns
SI
Data hold time
CS-SCL time
XCS
CS-SCL time
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*1 The input signal rise and fall time (tr, tf) are specified at 15 ns or less.
*2 All timing is specified using 20% and 80% of VDD as the standard.
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SERIAL INTERFACE (3-Line Interface)
tCSS
t CSH
XCS
tSCYC
tSLW
SCL
tSHW
tf
tr
tSDS
tSDH
SI
Fig 42.
(VDD=3.3V,Ta= –30 to 85°C,Die)
Rating
Item
Signal
Serial Clock Period
SCL “H” pulse width
SCL
SCL “L” pulse width
Data setup time
Symbol
Condition
Units
Min.
Max.
tSCYC
-
100
-
tSHW
-
50
-
tSLW
-
50
-
tSDS
-
30
-
tSDH
-
30
-
tCSS
-
20
-
tCSH
-
50
-
ns
SI
Data hold time
CS-SCL time
XCS
CS-SCL time
(VDD=2.7V,Ta= –30 to 85°C,Die)
Rating
Item
Signal
Serial Clock Period
SCL “H” pulse width
SCL
SCL “L” pulse width
Data setup time
Symbol
Condition
Units
Min.
Max.
tSCYC
-
110
-
tSHW
-
60
-
tSLW
-
50
-
tSDS
-
40
-
tSDH
-
40
-
tCSS
-
30
-
tCSH
-
60
-
ns
SI
Data hold time
CS-SCL time
XCS
CS-SCL time
*1 The input signal rise and fall time (tr, tf) are specified at 15 ns or less.
*2 All timing is specified using 20% and 80% of VDD as the standard.
Ver 1.8
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13. RESET TIMING
tRW
RST
tR
Internal
status
During reset
Reset complete
Fig 43.
(VDD =3.3V , Ta = –30 to 85°C,Die )
Rating
Item
Signal
Reset time
Reset “L” pulse width
RST
Symbol
Condition
Units
Min.
Typ.
Max.
tR
-
-
-
1
us
tRW
-
1
-
-
us
(VDD = 2.7V , Ta = –30 to 85°C,Die )
Rating
Item
Signal
Reset time
Reset “L” pulse width
Ver 1.8
RST
Symbol
Condition
Units
Min.
Typ.
Max.
tR
-
-
-
1.5
us
tRW
-
1.5
-
-
us
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14. THE MPU INTERFACE (REFERENCE EXAMPLES)
The ST7529 Series can be connected to either 8080 Series MPUs or to 6800 Series MPUs. Moreover, using the serial
interface it is possible to operate the ST7529 series chips with fewer signal lines.
The display area can be enlarged by using multiple ST7529 Series chips. When this is done, the chip select signal can be
used to select the individual Ics to access.
(1) 6800 Series MPUs(8 bit)
(2) 6800 Series MPUs(16 bit)
(3) 8080 Series MPUs(8 bit)
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(4) 8080 Series MPUs(16 bit)
(5)
Using the Serial Interface (4-line interface)
(3) Using the Serial Interface (3-line interface)
Ver 1.8
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15. Application circuit
Ver 1.8
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Ver 1.8
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Ver 1.8
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16. Power Application Note
16.1 Booster Efficiency
For COG Applications
Please take care about the ITO resistance, especially for the “Booster Capacitors” (CxP & CxN). The ITO trace will let the
booster efficiency decrease a little bit when the loading-current flow through it. As the loading-current become larger, the
efficiency will drop more. If the booster power source (VDD2) is lower, the ITO resistance control is more important.
Therefore, if the loading is heavy or the VDD2 is lower, the ITO resistance should be kept much lower than the
recommended value in this datasheet.
For TCP Applications
The TCP package will not have problem that the booster efficiency is reduced by the trace resistance. But the voltage
endurance should be take care. The booster efficiency is better than COG type product. Please consider using the
following suggestions to protect ST7529.
(1)
Make sure the voltage endurance is in range when Display OFF.
(2)
Add a resistor (about 200 Ohm) between VLCD and capacitor.
Please note that the resistor value is different from LCD modules. Actual value should be checked according module
display quality.
16.2 VLCD Discharge
ST7529 has built-in discharge path on VLCD. The discharge path will discharge the VLCD power when power off. The
discharge speed is different under different VLCD voltage. In some application, the discharge speed is not enough. To
improve this speed, a discharge resistor is needed. Recommend solution is to add the discharge resistor (about 1M Ohm)
between VLCD and VDD2. Please note that the resistor value is different from LCD modules. Actual value should be
checked according module display quality.
As the result, the recommended application circuit should introduce the circuit listed below on system (TCP applications) or
FPC (COG applications).
Ver 1.8
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ST7529 Series Specification Revision History
Version
Date
0.1
2005/03/01
0.2
2005/04/13
1.0
2005/04/29
1.1
2005/06/03
1.2
2005/08/09
Description
Preliminary version
Remove IIC interface
Add some example code and flow chart
Add EPINT command
Release version
Change initial code(Booster must be on first)
Modify write EEPROM sequence
Remove SEG255 pin
Add Temperature Gradient Coefficient
Add Figure 8.1.1, Figure 8.1.2
Ver 1.8
1.3
2005/09/15
Modify bump height, chip thickness, limiting value…..
1.4
2006/01/18
Modify application circuit voltage from 3.6V to 3.3V
1.5
2006/6/9
1.6
2006/9/18
1.7
2006/10/09
1.8
2007-10-25
a. Add Power Application Note.
b. Modify Application circuit.
c. Modify Voltage Converter Circuits.
d. Remove Dither Command.
e. Remove Weight Set Command.
f. Modify Analog circuit set (Oscillator frequency adjustment).
g. Modify Initial code flowchart.
h. Add Power ON Sequence Note.
i. Recommended LCD Vop Voltage.
a. Modify Dynamic Consumption Current Note.
b. Add microprocessor notice item.
c. Modify Pad Arrangement.
d. Modify Example(Read-Write-Modify Cycle).
a. Modify PIN Description(Cap1N、Cap1P…..etc).
b. Modify Application Circuit.
a. Modify the symbol name of 6800 Series MPU timing figure
(tEWHR,tEWHWLW,tEWLR.tEWLW)
b. Modify the singal name of 6800 Series MPU timing table(E_RD)
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