ETC NJU6815

NJU6815
Preliminary
128-common x 80 RGB-Segment, in 4096-Color
STN LCD DRIVER
■ GENERAL DESCRIPTION
The NJU6815 is a STN LCD driver with 128-common x
80 RGB-segment in 4096-color. It consists of
240(80xRGB)-segment, 128-common drivers, serial and
parallel MPU interface circuits, internal power supply
circuits, gradation palettes and 122,880-bit for graphic
display data RAM.
Each segment driver outputs 16-gradation level out of
32-gradation level of gradation palette.
The display rotate function makes easily rotated display
without original display data change.
Since the NJU6815 provides a low operating voltage of
1.7V and low operating current, it is ideally suited for
battery-powered handheld applications.
■ PACKAGE OUTLINE
NJU6815CJ
■ FEATURES
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
4096-color STN LCD driver
LCD drivers
128-commons, 80 RGB-segments
Display data RAM (DDRAM)
122,880-bit for graphic display
Color display mode
16 gradation level out of 32-gradation level of gradation palette
Black & white display mode
128 x 240 pixels in 16-gradation level or 128 x 240 pixels in B&W
256-color driving mode
8/16bit Parallel interface directly-connective to 68/80 series MPU
Programmable 8- or 16-bit data bus length for display data
3-/4-line Serial interface
Programmable duty and bias ratios
Programmable internal voltage booster (Maximum 6-times)
Programmable contrast control using 128-step EVR
Display Rotate Function / Display Mirror Inverse Function
Various instructions
Display data read/write, Display ON/OFF, Reverse display ON/OFF, All pixels ON/OFF,
column address, row address, N-line inversion, Initial display line, Initial COM line, Read-modify-write,
Gradation mode control, Increment control, Data bus length, Discharge ON/OFF,
Duty cycle ratio, LCD bias ratio, Boost level, EVR control, Power save ON/OFF, etc
Low operating current
Low logic supply voltage
1.7V to 3.3V
LCD driving supply voltage
5.0V to 18.0V
C-MOS technology
Rectangle out look for COG
Package
Bumped chip / TCP
02/11/21
-1-
NJU6815
1
DUMMY
DUMMY
DUMMY
■ PAD LOCATION
DUMMY
VSSA
SEL68
VDDA
P/S
VSSA
RESb
DUMMY
CSb
DUMMY
RS
DUMMY
WRb
DUMMY
RDb
VDDA
D0/SC
D1/SDA
D2
D3/SMODE
D4/SPOL
D5
D6
D7
VSSA
D8
D9
D10
D11
D12
D13
D14
D15
VDD
VDD
CL
FLM
FR
CLK
OSC1
OSC2
VSS
DUMMY
DUMMY
COM1
COM3
COM5
COM7
COM121
COM123
COM125
COM127
SEGC79
SEGB79
SEGA79
VSS
VLCD
VLCD
V1
V1
V2
V2
V3
Y
V3
V4
V4
VREG
VREG
VREF
VREF
VBA
X
VBA
VSSH
VSSH
VOUT
VOUT
VEE
VEE
C1+
SEGC0
SEGB0
SEGA0
COM126
COM124
COM122
COM120
C1+
C1C1C2+
C2+
C2C2C3+
C3+
C3C3C4+
C4+
C4C4C5+
COM6
COM4
COM2
COM0
DUMMY
C5+
C5C5DUMMY
DUMMY
DUMMY
DUMMY
DUMMY
-2-
Chip Center
Chip Size
Chip Thickness
Bump Pitch
Bump Size
Bump hight
Bump Material
:X=0um, Y=0um
:X=16.70mm, Y= 2.64mm
:625um + 25um
:42um(Min)
:24um x 140um
:17.5um(Typ)
:Au
NJU6815
Note1) The same name PADs are shorted mutually in the LSI.
Note2) The DMY PADs are electrically open.
Alignment mark (1)
a
a : 25um
b : 50um
Alignment mark
coordinates
b
a
Alignment mark coordinates
(-8168 , 1138)
( 8168 , -1138)
b
Alignment mark (2)
Alignment mark
coordinates
c : 50um
c
Alignment mark coordinates
( 7982 , -1115)
Alignment mark (3)
Alignment mark
coordinates
e
d : 50um
e : 20um
d
Alignment mark coordinates
(-7982 , -1115)
C4C4C4C4C4+
C4+
C4+
C4+
C4+
C4+
C3C3C3-
-3-
NJU6815
■ PAD COORDINATES 1
Chip size 16.70mm x 2.64µm (Chip center 0µm x 0µm)
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
-4-
PIN NAME
DMY0
DMY1
DMY2
VSSA
VSSA
DMY3
SEL68
SEL68
DMY4
VDDA
VDDA
DMY5
P/S
P/S
DMY6
VSSA
VSSA
DMY7
RESB
RESB
DMY8
CSB
CSB
DMY9
RS
RS
DMY10
WRB
WRB
DMY11
RDB
RDB
DMY12
VDDA
VDDA
D0
D0
D1
D1
D2
D2
D3
D3
D4
D4
D5
D5
D6
D6
D7
D7
VSSA
VSSA
D8
D8
D9
D9
D10
D10
D11
X (um)
-7875.00
-7833.00
-7791.00
-7749.00
-7707.00
-7665.00
-7623.00
-7581.00
-7539.00
-7497.00
-7455.00
-7413.00
-7371.00
-7329.00
-7287.00
-7245.00
-7203.00
-7161.00
-7119.00
-7077.00
-7035.00
-6993.00
-6951.00
-6909.00
-6867.00
-6825.00
-6783.00
-6741.00
-6699.00
-6657.00
-6615.00
-6573.00
-6531.00
-6489.00
-6447.00
-6321.00
-6279.00
-6153.00
-6111.00
-5985.00
-5943.00
-5817.00
-5775.00
-5649.00
-5607.00
-5481.00
-5439.00
-5313.00
-5271.00
-5145.00
-5103.00
-4977.00
-4935.00
-4809.00
-4767.00
-4641.00
-4599.00
-4473.00
-4431.00
-4305.00
Y (um)
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
No.
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
PIN NAME
D11
D12
D12
D13
D13
D14
D14
D15
D15
VDD
VDD
VDD
VDD
VDD
VDD
VDD
VDD
VDD
CL
CL
FLM
FLM
FR
FR
CLK
CLK
DMY13
OSC1
OSC1
DMY14
OSC2
OSC2
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
DMY15
VLCD
VLCD
VLCD
VLCD
VLCD
VLCD
VLCD
VLCD
VLCD
DMY16
V1
V1
V1
V1
V1
V1
V1
V1
X (um)
-4263.00
-4137.00
-4095.00
-3969.00
-3927.00
-3801.00
-3759.00
-3633.00
-3591.00
-3465.00
-3423.00
-3381.00
-3339.00
-3297.00
-3255.00
-3213.00
-3171.00
-3129.00
-2961.00
-2919.00
-2793.00
-2751.00
-2625.00
-2583.00
-2457.00
-2415.00
-2289.00
-2247.00
-2205.00
-2163.00
-2037.00
-1995.00
-1869.00
-1827.00
-1785.00
-1743.00
-1701.00
-1659.00
-1617.00
-1575.00
-1533.00
-1407.00
-1281.00
-1239.00
-1197.00
-1155.00
-1113.00
-1071.00
-1029.00
-987.00
-945.00
-903.00
-861.00
-819.00
-777.00
-735.00
-693.00
-651.00
-609.00
-567.00
Y (um)
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
No.
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
PIN NAME
V1
V2
V2
V2
V2
V2
V2
V2
V2
V2
DMY17
V3
V3
V3
V3
V3
V3
V3
V3
V3
V4
V4
V4
V4
V4
V4
V4
V4
V4
DMY18
VREG
VREG
VREG
VREG
VREG
VREG
VREG
VREG
VREG
DMY19
VREF
VREF
VREF
VREF
VREF
VREF
VREF
VREF
VREF
DMY20
VBA
VBA
VBA
VBA
VBA
VBA
VBA
VBA
VBA
DMY21
X (um)
-525.00
-399.00
-357.00
-315.00
-273.00
-231.00
-189.00
-147.00
-105.00
-63.00
-21.00
21.00
63.00
105.00
147.00
189.00
231.00
273.00
315.00
357.00
483.00
525.00
567.00
609.00
651.00
693.00
735.00
777.00
819.00
861.00
903.00
945.00
987.00
1029.00
1071.00
1113.00
1155.00
1197.00
1239.00
1281.00
1323.00
1365.00
1407.00
1449.00
1491.00
1533.00
1575.00
1617.00
1659.00
1701.00
1743.00
1785.00
1827.00
1869.00
1911.00
1953.00
1995.00
2037.00
2079.00
2121.00
Y (um)
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
NJU6815
■ PAD COORDINATES 2
No.
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
PIN NAME
VSSH
VSSH
VSSH
VSSH
VSSH
VSSH
VSSH
VSSH
VSSH
VOUT
VOUT
VOUT
VOUT
VOUT
VOUT
VOUT
VOUT
VOUT
VEE
VEE
VEE
VEE
VEE
VEE
VEE
VEE
VEE
C1+
C1+
C1+
C1+
C1+
C1+
C1+
C1+
C1+
DMY22
C1C1C1C1C1C1C1C1C1DMY23
C2+
C2+
C2+
C2+
C2+
C2+
C2+
C2+
C2+
DMY24
C2C2C2-
X (um)
2163.00
2205.00
2247.00
2289.00
2331.00
2373.00
2415.00
2457.00
2499.00
2667.00
2709.00
2751.00
2793.00
2835.00
2877.00
2919.00
2961.00
3003.00
3171.00
3213.00
3255.00
3297.00
3339.00
3381.00
3423.00
3465.00
3507.00
3633.00
3675.00
3717.00
3759.00
3801.00
3843.00
3885.00
3927.00
3969.00
4011.00
4053.00
4095.00
4137.00
4179.00
4221.00
4263.00
4305.00
4347.00
4389.00
4431.00
4473.00
4515.00
4557.00
4599.00
4641.00
4683.00
4725.00
4767.00
4809.00
4851.00
4893.00
4935.00
4977.00
Y (um)
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
No.
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
PIN NAME
C2C2C2C2C2C2DMY25
C3+
C3+
C3+
C3+
C3+
C3+
C3+
C3+
C3+
DMY26
C3C3C3C3C3C3C3C3C3DMY27
C4+
C4+
C4+
C4+
C4+
C4+
C4+
C4+
C4+
DMY28
C4C4C4C4C4C4C4C4C4DMY29
C5+
C5+
C5+
C5+
C5+
C5+
C5+
C5+
C5+
DMY30
C5C5C5-
X (um)
5019.00
5061.00
5103.00
5145.00
5187.00
5229.00
5271.00
5313.00
5355.00
5397.00
5439.00
5481.00
5523.00
5565.00
5607.00
5649.00
5691.00
5733.00
5775.00
5817.00
5859.00
5901.00
5943.00
5985.00
6027.00
6069.00
6111.00
6153.00
6195.00
6237.00
6279.00
6321.00
6363.00
6405.00
6447.00
6489.00
6531.00
6573.00
6615.00
6657.00
6699.00
6741.00
6783.00
6825.00
6867.00
6909.00
6951.00
6993.00
7035.00
7077.00
7119.00
7161.00
7203.00
7245.00
7287.00
7329.00
7371.00
7413.00
7455.00
7497.00
Y (um)
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
No.
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
PIN NAME
C5C5C5C5C5C5DMY31
DMY32
DMY33
DMY34
DMY35
DMY35
DMY35
DMY36
DMY37
DMY38
DMY39
DMY40
COM0
COM2
COM4
COM6
COM8
COM10
COM12
COM14
COM16
COM18
COM20
COM22
COM24
COM26
COM28
COM30
COM32
COM34
COM36
COM38
COM40
COM42
COM44
COM46
COM48
COM50
COM52
COM54
COM56
COM58
COM60
COM62
COM64
COM66
COM68
COM70
COM72
COM74
COM76
COM78
COM80
COM82
X (um)
7539.00
7581.00
7623.00
7665.00
7707.00
7749.00
7791.00
7833.00
7875.00
8145.00
8145.00
8145.00
8145.00
8145.00
8001.00
7959.00
7917.00
7875.00
7833.00
7791.00
7749.00
7707.00
7665.00
7623.00
7581.00
7539.00
7497.00
7455.00
7413.00
7371.00
7329.00
7287.00
7245.00
7203.00
7161.00
7119.00
7077.00
7035.00
6993.00
6951.00
6909.00
6867.00
6825.00
6783.00
6741.00
6699.00
6657.00
6615.00
6573.00
6531.00
6489.00
6447.00
6405.00
6363.00
6321.00
6279.00
6237.00
6195.00
6153.00
6111.00
Y (um)
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1115.00
-1035.00
-993.00
-951.00
-909.00
-867.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
-5-
NJU6815
■ PAD COORDINATES 3
No.
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
-6-
PIN NAME
COM84
COM86
COM88
COM90
COM92
COM94
COM96
COM98
COM100
COM102
COM104
COM106
COM108
COM110
COM112
COM114
COM116
COM118
COM120
COM122
COM124
COM126
DMY41
DMY42
DMY43
SEGA0
SEGB0
SEGC0
SEGA1
SEGB1
SEGC1
SEGA2
SEGB2
SEGC2
SEGA3
SEGB3
SEGC3
SEGA4
SEGB4
SEGC4
SEGA5
SEGB5
SEGC5
SEGA6
SEGB6
SEGC6
SEGA7
SEGB7
SEGC7
SEGA8
SEGB8
SEGC8
SEGA9
SEGB9
SEGC9
SEGA10
SEGB10
SEGC10
SEGA11
SEGB11
X (um)
6069.00
6027.00
5985.00
5943.00
5901.00
5859.00
5817.00
5775.00
5733.00
5691.00
5649.00
5607.00
5565.00
5523.00
5481.00
5439.00
5397.00
5355.00
5313.00
5271.00
5229.00
5187.00
5145.00
5103.00
5061.00
5019.00
4977.00
4935.00
4893.00
4851.00
4809.00
4767.00
4725.00
4683.00
4641.00
4599.00
4557.00
4515.00
4473.00
4431.00
4389.00
4347.00
4305.00
4263.00
4221.00
4179.00
4137.00
4095.00
4053.00
4011.00
3969.00
3927.00
3885.00
3843.00
3801.00
3759.00
3717.00
3675.00
3633.00
3591.00
Y (um)
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
No.
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
PIN NAME
SEGC11
SEGA12
SEGB12
SEGC12
SEGA13
SEGB13
SEGC13
SEGA14
SEGB14
SEGC14
SEGA15
SEGB15
SEGC15
SEGA16
SEGB16
SEGC16
SEGA17
SEGB17
SEGC17
SEGA18
SEGB18
SEGC18
SEGA19
SEGB19
SEGC19
SEGA20
SEGB20
SEGC20
SEGA21
SEGB21
SEGC21
SEGA22
SEGB22
SEGC22
SEGA23
SEGB23
SEGC23
SEGA24
SEGB24
SEGC24
SEGA25
SEGB25
SEGC25
SEGA26
SEGB26
SEGC26
SEGA27
SEGB27
SEGC27
SEGA28
SEGB28
SEGC28
SEGA29
SEGB29
SEGC29
SEGA30
SEGB30
SEGC30
SEGA31
SEGB31
X (um)
3549.00
3507.00
3465.00
3423.00
3381.00
3339.00
3297.00
3255.00
3213.00
3171.00
3129.00
3087.00
3045.00
3003.00
2961.00
2919.00
2877.00
2835.00
2793.00
2751.00
2709.00
2667.00
2625.00
2583.00
2541.00
2499.00
2457.00
2415.00
2373.00
2331.00
2289.00
2247.00
2205.00
2163.00
2121.00
2079.00
2037.00
1995.00
1953.00
1911.00
1869.00
1827.00
1785.00
1743.00
1701.00
1659.00
1617.00
1575.00
1533.00
1491.00
1449.00
1407.00
1365.00
1323.00
1281.00
1239.00
1197.00
1155.00
1113.00
1071.00
Y (um)
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
No.
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
PIN NAME
SEGC31
SEGA32
SEGB32
SEGC32
SEGA33
SEGB33
SEGC33
SEGA34
SEGB34
SEGC34
SEGA35
SEGB35
SEGC35
SEGA36
SEGB36
SEGC36
SEGA37
SEGB37
SEGC37
SEGA38
SEGB38
SEGC38
SEGA39
SEGB39
SEGC39
SEGA40
SEGB40
SEGC40
SEGA41
SEGB41
SEGC41
SEGA42
SEGB42
SEGC42
SEGA43
SEGB43
SEGC43
SEGA44
SEGB44
SEGC44
SEGA45
SEGB45
SEGC45
SEGA46
SEGB46
SEGC46
SEGA47
SEGB47
SEGC47
SEGA48
SEGB48
SEGC48
SEGA49
SEGB49
SEGC49
SEGA50
SEGB50
SEGC50
SEGA51
SEGB51
X (um)
1029.00
987.00
945.00
903.00
861.00
819.00
777.00
735.00
693.00
651.00
609.00
567.00
525.00
483.00
441.00
399.00
357.00
315.00
273.00
231.00
189.00
147.00
105.00
63.00
21.00
-21.00
-63.00
-105.00
-147.00
-189.00
-231.00
-273.00
-315.00
-357.00
-399.00
-441.00
-483.00
-525.00
-567.00
-609.00
-651.00
-693.00
-735.00
-777.00
-819.00
-861.00
-903.00
-945.00
-987.00
-1029.00
-1071.00
-1113.00
-1155.00
-1197.00
-1239.00
-1281.00
-1323.00
-1365.00
-1407.00
-1449.00
Y (um)
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
NJU6815
■ PAD COORDINATES 4
No.
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
PIN NAME
SEGC51
SEGA52
SEGB52
SEGC52
SEGA53
SEGB53
SEGC53
SEGA54
SEGB54
SEGC54
SEGA55
SEGB55
SEGC55
SEGA56
SEGB56
SEGC56
SEGA57
SEGB57
SEGC57
SEGA58
SEGB58
SEGC58
SEGA59
SEGB59
SEGC59
SEGA60
SEGB60
SEGC60
SEGA61
SEGB61
SEGC61
SEGA62
SEGB62
SEGC62
SEGA63
SEGB63
SEGC63
SEGA64
SEGB64
SEGC64
SEGA65
SEGB65
SEGC65
SEGA66
SEGB66
SEGC66
SEGA67
SEGB67
SEGC67
SEGA68
SEGB68
SEGC68
SEGA69
SEGB69
SEGC69
SEGA70
SEGB70
SEGC70
SEGA71
SEGB71
X (um)
-1491.00
-1533.00
-1575.00
-1617.00
-1659.00
-1701.00
-1743.00
-1785.00
-1827.00
-1869.00
-1911.00
-1953.00
-1995.00
-2037.00
-2079.00
-2121.00
-2163.00
-2205.00
-2247.00
-2289.00
-2331.00
-2373.00
-2415.00
-2457.00
-2499.00
-2541.00
-2583.00
-2625.00
-2667.00
-2709.00
-2751.00
-2793.00
-2835.00
-2877.00
-2919.00
-2961.00
-3003.00
-3045.00
-3087.00
-3129.00
-3171.00
-3213.00
-3255.00
-3297.00
-3339.00
-3381.00
-3423.00
-3465.00
-3507.00
-3549.00
-3591.00
-3633.00
-3675.00
-3717.00
-3759.00
-3801.00
-3843.00
-3885.00
-3927.00
-3969.00
Y (um)
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
No.
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
PIN NAME
SEGC71
SEGA72
SEGB72
SEGC72
SEGA73
SEGB73
SEGC73
SEGA74
SEGB74
SEGC74
SEGA75
SEGB75
SEGC75
SEGA76
SEGB76
SEGC76
SEGA77
SEGB77
SEGC77
SEGA78
SEGB78
SEGC78
SEGA79
SEGB79
SEGC79
DMY44
DMY45
DMY46
COM127
COM125
COM123
COM121
COM119
COM117
COM115
COM113
COM111
COM109
COM107
COM105
COM103
COM101
COM99
COM97
COM95
COM93
COM91
COM89
COM87
COM85
COM83
COM81
COM79
COM77
COM75
COM73
COM71
COM69
COM67
COM65
X (um)
-4011.00
-4053.00
-4095.00
-4137.00
-4179.00
-4221.00
-4263.00
-4305.00
-4347.00
-4389.00
-4431.00
-4473.00
-4515.00
-4557.00
-4599.00
-4641.00
-4683.00
-4725.00
-4767.00
-4809.00
-4851.00
-4893.00
-4935.00
-4977.00
-5019.00
-5061.00
-5103.00
-5145.00
-5187.00
-5229.00
-5271.00
-5313.00
-5355.00
-5397.00
-5439.00
-5481.00
-5523.00
-5565.00
-5607.00
-5649.00
-5691.00
-5733.00
-5775.00
-5817.00
-5859.00
-5901.00
-5943.00
-5985.00
-6027.00
-6069.00
-6111.00
-6153.00
-6195.00
-6237.00
-6279.00
-6321.00
-6363.00
-6405.00
-6447.00
-6489.00
Y (um)
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
No.
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
PIN NAME
COM63
COM61
COM59
COM57
COM55
COM53
COM51
COM49
COM47
COM45
COM43
COM41
COM39
COM37
COM35
COM33
COM31
COM29
COM27
COM25
COM23
COM21
COM19
COM17
COM15
COM13
COM11
COM9
COM7
COM5
COM3
COM1
DMY47
DMY48
DMY49
DMY50
DMY51
DMY52
DMY52
DMY52
DMY53
X (um)
-6531.00
-6573.00
-6615.00
-6657.00
-6699.00
-6741.00
-6783.00
-6825.00
-6867.00
-6909.00
-6951.00
-6993.00
-7035.00
-7077.00
-7119.00
-7161.00
-7203.00
-7245.00
-7287.00
-7329.00
-7371.00
-7413.00
-7455.00
-7497.00
-7539.00
-7581.00
-7623.00
-7665.00
-7707.00
-7749.00
-7791.00
-7833.00
-7875.00
-7917.00
-7959.00
-8001.00
-8145.00
-8145.00
-8145.00
-8145.00
-8145.00
Y (um)
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
1115.00
-867.00
-909.00
-951.00
-993.00
-1035.00
-7-
NJU6815
VSS
COM127
VSSH
COM0
SEGA0
SEGB0
SEGC0
SEGA79
SEGB79
SEGC79
■ BLOCK DIAGRAM
VSSA
VVDDA
VDD
Common Driver
Gradation Circuit
Shift Register
Data Latch Circuit
D15
Initial Display Line Register
Display Data RAM
(DD RAM)
128x80x(4+4+4)bit
Line Address Decoder
Row Address Counter
Voltage
regulator
Row Address Decoder
Voltage
booster
Row Address Register
C1+
C1C2+
C2C3+
C3C4+
C4C5+
C5VOUT
VEE
VREF
VBA
VREG
Line Counter
VLCD, V1 -V4
Segment Driver
5
Column Address Decoder
D14
D13
RAM
Interface
D12
Display
Timing
Generator
Column Address Counter
D11
FR
FLM
CL
D10
D8
D7
Column Address Register
I/O Buffer
D9
CLK
Oscillator
OSC1
D6
D5
D4/SPOL
D3/SMODE
Pole Control
D2
Instruction
Decoder
Bus Holder
Internal Bus
D1/SDA
D0/SCL
MPU Interface
CSb
-8-
OSC2
RS
RDb
WRb
P/S
SEL68 RESb
Register Read
Control
NJU6815
■ POWER SUPPLY CIRCUITS BLOCK DIAGRAM
VBA
Reference
Voltage
Generator
-
Voltage regulator
VREG
VREF
+
+
Gain
Control
(1x-6x)
E.V.R
1/2VREG
+
-
VLCD
+
-
V1
+
-
V2
+
-
V3
+
-
V4
EVR register
Boost level register
C1+
C1C2+
C2C3+
C3C4+
C4C5+
C5VEE
Voltage
Booster
VOUT
-9-
NJU6815
■ TERMINAL DESCRIPTION 1
No.
70~78
93~101
181~189
10,11,
34,35,
52,53
Symbol
VDD
VSS
VSSH
VDDA
I/O
Power
Power
Power
Power
4,5,
16,17
VSSA
Power
103~111
113~121
122~130
132~140
141~149
VLCD
V1
V2
V3
V4
Power/O
208~216
218~226
228~236
238~246
248~256
258~266
268~276
278~286
288~296
298~306
171~179
161~169
199~207
C 1+
C 1C 2+
C 2C 3+
C 3C 4+
C 4C 5+
C 5VBA
VREF
VEE
O
Function
Power supply for logic circuits
GND for logic circuits
GND for high voltage circuits
This terminal is internally connected to the VDD level.
•This terminal is used to fix the selection terminals to the VDD
level.
Note) Do not use this terminal for a main power supply.
This terminal is internally connected to the VSS level.
•This terminal is used to fix the selection terminals to the VSS
level.
Note) Do not use this terminal for a main GND.
LCD driving voltages
•When the internal voltage booster is not used, external LCD
driving voltages (V1 to V4 and VLCD) must be supplied on these
terminals. The external voltages must be maintained with the
following relation.
VSS<V4<V3<V2<V1<VLCD
•When the internal voltage booster is used, the LCD driving
voltages (V1 to V4 and VLCD) are enabled by the “Power control”
instruction. The capacitors between the VSS and these terminals
are necessary.
Capacitor connection terminals for the voltage booster
O
Capacitor connection terminals for the voltage booster
O
Capacitor connection terminals for the voltage booster
O
Capacitor connection terminals for the voltage booster
O
Capacitor connection terminals for the voltage booster
O
I
Power
190~198
VOUT
Power/O
151~159
19,20
VREG
RESb
O
I
7,8
SEL68
I
- 10 -
Output of the reference-voltage generator
Input of the voltage regulator
Input of the voltage booster
•This terminal is normally connected to the VDD level.
Output of the voltage booster
Input for high voltage circuits in using external power supply
Output of the voltage regulator
Reset
Active “0”
MPU interface type select
SEL86
H
L
Status
68 series
80 series
NJU6815
■ TERMINAL DESCRIPTION 2
No.
36,37
Symbol
D0/SCL
I/O
I/O
38,39
D1/SDA
I/O
42,43
D3/SMODE
I/O
44,45
D4/SPOL
I/O
40,41
46,47
48,49
50,51
D2
D5
D6
D7
I/O
54,55
56,57
58,59
60,61
62,63
64,65
66,67
68,69
22,23
D8
D9
D10
D11
D12
D13
D14
D15
I/O
25,26
CSb
RS
I
I
Function
Parallel interface:
D7 to D0 : 8-bit bi-directional bus
•In the parallel interface mode (P/S=“1”), these terminals connect
to 8-bit bi-directional MPU bus.
Serial interface:
SDA : serial data
SCL : serial clock
SMODE : 3-/4-line serial interface mode selection
SPOL : RS polarity selection (in the 3-line serial interface mode)
•In the 3-/4-line serial interface mode (P/S=“0”), the D0 terminal is
assigned to the SCL and the D1 terminal to the SDA.
•In the 3-line serial interface mode, the D4 terminal is assigned to
the SPOL.
•Serial data on the SDA is fetched at the rising edge of the SCL
signal in the order of the D7, D6…D0, and the fetched data is
converted into 8-bit parallel data at the falling edge of the 8th
SCL signal.
•The SCL signal must be set to “0” after data transmissions or
during non-access.
8-bit bi-directional bus
•In the 16-bit data bus mode, these terminals are assigned to the
upper 8-bit data bus.
•In the serial interface mode or 8-bit data bus mode of the parallel
interface, these terminals must be fixed to “1” or “0”.
Chip select
Active “0”
Resister select
•This signal distinguishes transferred data as an instruction or
display data as follows.
RS
Distinct.
31,32
28,29
RDb (E)
WRb (R/W)
I
I
H
Instruction
L
Display data
80 series MPU interface (P/S=“1”, SEL68=“0”)
RDb signal. Active “0”.
68 series MPU interface (P/S=“1”, SEL68=“1”)
Enable signal. Active “1”.
80 series MPU interface (P/S=“1”, SEL68=“0”)
WRb signal. Active “0”.
68 series MPU interface (P/S=“1”, SEL68=“1”)
R/W signal.
R/W
H
L
Status
Read
Write
- 11 -
NJU6815
■ TERMINAL DESCRIPTION 3
No.
13,14
Symbol
P/S
I/O
I
79,80
CL
O
81,82
83,84
85,86
88,89
91,92
FLM
FR
CLK
OSC1
OSC2
O
O
O
I
O
- 12 -
Function
Parallel / serial interface mode selection
P/S
Chip
Select
Data/
Instruction
Data
Read/Write
Serial clock
H
CSb
RS
D0 ~ D7
RDb, WRb
-
L
CSb
RS
SDA (D1)
Write only
SCL (D0)
•Since the D15 to D5 and D2 terminals are in the high impedance in the
serial inter face mode (P/S=”0”), they must be fixed to “1” or “0”. The
RDb and WRb terminals also must be “1” or “0”.
This terminal must be opened.
This terminal must be opened.
This terminal must be opened.
This terminal must be opened.
OSC
•When the internal oscillator clock is used, OSC1 terminal must be
fixed to “1” or “0”, and the OSC2 terminal must be opened. When the
oscillation frequency from the internal oscillator is adjusted by an
external resistor between OSC1 terminal and OSC2.
•When an external oscillator is used, external clock is input to the
OSC1 terminal or an external resistor is connected between the OSC1
and OSC2 terminals.
NJU6815
■ TERMINAL DESCRIPTION 4
No.
386~625
Symbol
SEGA0 ~ SEGA79,
SEGB0 ~ SEGB79,
SEGC0 ~ SEGC79
I/O
O
Function
Segment output
REV Mode
Normal
Reverse
Turn-off
0
1
Turn-on
1
0
•These terminals output LCD driving waveforms in accordance
with the combination of the FR signal and display data.
In the B/W mode
FR signal
Display data
319~382,
629~692
COM0 ~ COM127
O
Normal display mode
V2
VLCD
V3
VSS
Reverse display mode
VLCD
V2
VSS
V3
Common output
•These terminals output LCD driving waveforms in accordance
with the combination of the FR signal and scanning data.
Data
H
L
H
L
FR
H
H
L
L
Output level
VSS
V1
VLCD
V4
(Terminal No. 1-3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 87, 90, 102, 112, 131, 150, 160, 170, 180, 217, 227, 237,
247, 257, 267, 277, 287, 297, 307-318, 383-385, 626-628, 693-701 are dummy.)
- 13 -
NJU6815
■ Functional Description
(1) MPU Interface
(1-1) Selection of parallel / serial interface mode
The P/S terminal is used to select parallel or serial interface mode as shown in the following table. In the
serial interface mode, it is not possible to read out display data from the DDRAM and status from the
internal registers.
Table1
P/S
P/S mode
CSb
RS
H
Parallel I/F
CSb
RS
L
Serial I/F
CSb
RS
Note 1) “ -” : Fix to “1” or “0”.
RDb
RDb
-
WRb
WRb
-
SEL68
SEL68
-
SDA
SCL
SDA
SCL
Data
D7-D0 (D15-D0)
-
(1-2) Selection of MPU interface type
In the parallel interface mode, the SEL68 terminal is used to select 68- or 80-series MPU interface type
as shown in the following table.
Table2
SEL68
MPU type
H
68 series MPU
L
80 series MPU
CSb
CSb
CSb
RS
RS
RS
RDb
E
RDb
WRb
R/W
WRb
Data
D7-D0 (D15-D0)
D7-D0 (D15-D0)
(1-3) Data distinction
In the parallel interface mode, the combination of RS, RDb, and WRb (R/W) signals distinguishes
transferred data between the LSI and MPU as instruction or display data, as shown in the following table.
Table3
RS
H
H
L
L
68 series
R/W
H
L
H
L
80 series
RDb
WRb
L
H
H
L
L
H
H
L
Function
Read out instruction data
Write instruction data
Read out display data
Write display data
(1-4) Selection of serial interface mode
In the serial interface mode, the SMODE terminal is used to select the 3- or 4-line serial interface mode
as shown in the following table.
Table4
SMODE
H
L
- 14 -
Serial interface mode
3-line
4-line
NJU6815
(1-5) 4-line serial interface mode
In the 4-line serial interface mode, when the chip select is active (CSb=“0”), the SDA and the SCL are
enabled. When the chip select is not active (CSb=“1”), the SDA and the SCL are disabled and the internal
shift register and the counter are being initialized. The 8-bit serial data on the SDA is fetched at the rising
edge of the SCL signal (serial clock) in order of the D7, D6…D0, and the fetched data is converted into the
8-bit parallel data at the rising edge of the 8th SCL signal.
In the 4-line serial interface mode, the transferred data on the SDA is distinguished as display data or
instruction data in accordance with the condition of the RS signal.
RS
H
L
Table5
Data distinction
Instruction data
Display data
Since the serial interface operation is sensitive to external noises, the SCL should be set to “0” after data
transmissions or during non-access. To release a mal-function caused by the external noises, the chipselected status should be released (CSb=“1”) after each of the 8-bit data transmissions. The following
figure illustrates the interface timing for the 4-line serial interface operation.
CSb
RS
VALID
SDA
D7
D6
D5
D4
D3
D2
D1
D0
1
2
3
4
5
6
7
8
SCL
Fig1
4-line serial interface timing
(1-6) 3-line serial interface mode
In the 3-line serial interface mode, when the chip select is active (CSb=“0”), the SDA and SCL are
enabled. When the chip select is not active (CSb=“1”), the SDA and SCL are disabled and the internal shift
register and counter are being initialized. 9-bit serial data on the SDA is fetched at the rising edge of the
SCL signal in order of the RS, D7, D6…D0, and the fetched data is converted into the 9-bit parallel data at
the rising edge of the 9th SCL signal.
In the 3-line serial interface mode, data on the SDA is distinguished as display data or instruction data in
accordance with the condition of the RS bit of the SDA data and the status of the SPOL, as follows.
Table6
RS
L
H
SPOL=L
Data distinction
Display data
Instruction data
RS
L
H
SPOL=H
Data distinction
Instruction data
Display data
- 15 -
NJU6815
Since the serial interface operation is sensitive to external noises, the SCL must be set to “0” after data
transmissions or during non-access. To release a mal-function caused by the external noises, the chipselected status should be released (CSb=“1”) after each of 9-bit data transmissions. The following figure
illustrates the interface timing of the 3-line serial interface operation.
CSb
SDA
RS
D7
D6
D5
D4
1
2
3
4
5
D3
D2
D1
D0
SCL
Fig2
- 16 -
6
3-line serial interface timing
7
8
9
NJU6815
(2) Access to the DDRAM
When the CSb signal is ”0”, the transferred data from MPU is written into the DDRAM or instruction register
in accordance with the condition of the RS signal.
When the RS signal is “1”, the transferred data is distinguished as display data. After the “column address”
and “row address” instructions are executed, the display data can be written into the DDRAM by the “display
data write” instruction. The display data is written at the rising edge of the WRb signal in the 80 series MPU
mode, or at the falling edge of the E signal in the 68 series MPU mode.
Table6
RS
Data
L
Display RAM Data
H
Internal Command Register
In the sequence of the “display data read” operation, the transferred data from MPU is temporarily held in the
internal bus-holder, then transferred to the internal data-bus. When the “display data read” operation is
executed just after the “column address” and “row address” instructions or “display data write” instruction,
unexpected data on the bus-holder is read out at the 1st execution, then the data of designated DDRAM
address is read out from the 2nd execution. For this reason, a dummy read cycle must be executed to avoid
the unexpected 1st data read.
Display data write operation
D0 to D15
n
n+1
n+2
n+3
n+4
Internal
WRb
n
Bus Holder
n+1
n+2
n+3
n+4
WRb
Display data read operation
WRb
D0 to D7(D0 to D15)
n
Address Set
n
n
Dummy
Read
Data Read
n Address
n+1
Data Read
n+1 Address
n+2
Data Read
n+2 Address
RDb
Fig3
Note) In the16-bit data bus mode, instruction data must be 16-bit as well as the display data.
- 17 -
NJU6815
(3) Access to the instruction register
Each instruction resisters is assigned to each address between 0H and FH, and the content of the instruction
register can be read out by the combination of the “Instruction resister address” and ”Instruction resister read”.
WRb
D0 to D7
M
m
N
n
Instruction resister
address set
Instruction resister
contents read
Instruction resister
address set
Instruction resister
contents read
RDb
Fig4
(4) 8-/16-bit data bus length for display data (in the parallel interface mode)
The 8- or 16-bit data bus length for display data is determined by the “WLS” of the “Data bus length”
instruction.
In the 16-bit data bus mode, not only the display data but also the instruction data is required to be
transferred by 16-bit data (D15 to D0). However, for the access to the instruction register, the only lower 8-bit
data (D7 to D0) of the 16-bit data is valid. For the access to the DDRAM, all of the 16-bit data (D15 to D0) is valid.
Table8
WLS
L
H
Data bus length mode
8-bit
16-bit
(5) Initial display line register
The initial display line resister specifies the line address, corresponding to the initial COM line, by the “Initial
display line” instruction. The initial COM line signifies the common driver, starting scanning the display data in
the DDRAM, and specified by the “Initial COM line” instruction.
The line address, established in the initial display line resister, is preset into the line counter whenever the
FLM signal becomes “1”. At the rising edge of the CL signal, the line counter is counted-up and addressed 240bit display data corresponding to the counted-up line address, is latched into the data latch circuit. At the falling
edge of the CL signal, the latched data outputs to the segment drivers.
- 18 -
NJU6815
(6) DDRAM mapping
The DDRAM is capable of 960-bit (12-bit x 80-segment) for the column address and 128-bit for the row
address.
In the gradation mode, each pixel for RGB corresponds to successive 3-segment drivers, and each segment
driver has 16-gradation. Therefore, the LSI can drive up to 128x80 pixels in 4096-color display (16-gradation x
16-gradation x 16-gradation).
In 8-bit access mode(C256 mode) for DDRAM, sequential twice accesses to DDRAM complete one pixel
data access. Therefore, it must be accessed with a couple of operation.
! In the 8-bit data bus length mode
column-address
4FH
0H
0H
7bit
5bit
7bit
5bit
7FH
7bit
5bit
7bit
5bit
row-address
column-address
4FH
0H
ABS=’1’
0H
4bit
8bit
4bit
8bit
7FH
4bit
8bit
4bit
8bit
0H
0H
8bit
1H
8bit
4EH
8bit
4FH
8bit
7FH
8bit
8bit
8bit
8bit
row-address
column-address
C256=’1’
row-address
Fig5
- 19 -
NJU6815
! In the 16-bit data bus length mode
column-address
0H
0H
12bit
7FH
12bit
4FH
12bit
row-address
12bit
Fig6
In the B&W mode, only MSB data from each 4-bit display data group in the DDRAM is used. Therefore, 240 x
128 pixels in the B&W and 80 x 128 pixels in the 8-gradation are available.
The range of the column address varies depending on data bus length. The range between 00H and 4FH is
used in the 8-bit or 16-bit data bus length.
The DDRAM is accessing 8-bit or 16-bit unit addressed by column and row address. In the 8-bit or 16-bit data
bus length mode, over 80H address setting is prohibited.
The increments for the column address and row address are set to the auto-increment mode by
programming the “HV”, “XD” and “YD” registers of the “Increment control” instruction. In this mode, the contents
of the column address and row address counters automatically increment whenever the DDRAM is accessed.
The column address and row address counters, independent of the line counter. They are used to designate
the column and row addresses for the display data transferred from MPU. On the other hand, the line counter is
used to generate the line address, and output display data to the segment drivers, being synchronized with the
display control timing of the FLM and CL signals.
- 20 -
NJU6815
(7) Window addressing mode
Window area must be designated before RAM access.
In the window addressing mode, the address space of the DDRAM designated by the start and end point is
defined. The start point is determined by the “column address” and “row address” instructions, and the end
point is determined by the “Window end column address “and ”Window end row address” instructions. The
setting for the window addressing is listed in the following.
1. “Increment control” instruction set (HV, XD, YD)
2. Set the start point by the “column address” and “row address” instructions
3. Set the end point by the “Window end column address” and “Window end row address” instructions
4. Enable to access to the DDRAM in the window addressing mode
In addition, the read-modify-write operation is available by setting “AIM” register to ”L” in the “Increment
control” instruction.
For the window area designation, the address directions of RAM (HV, XD, YD) must be set first, and Column
address and Row of Start point must be set second, Column address and Row of Stop point must be set third,
then RAM should be accessed. Low address must be set first and High address must be set second in all of
addresses. The directions of HV, XD, YD should be check to keep the area in RAM.
And in the window addressing mode, the following start and end point must be maintained to abide a
malfunction.
column address
row address
(X, Y)
Start point
Window display area
End point
(X, Y)
Whole DDRAM area
Fig7
(8) Reverse display ON/OFF
The “Reverse display ON/OFF” function is used to reverse the display data without changing the contents of
the DDRAM.
Table9
REV
Display
0
Normal
1
Reverse
DDRAM data → Display data
0
0
1
1
0
1
1
0
(9) Address directions of RAM access (Display rotation)
The bellow picture shows display image after set of HV, XD and YD for address directions. The display data
from CPU can be written into RAM with rotation to 90 degrees or 180 degrees or 270 degrees, and also
mirrored.
The address directions of RAM access is set by HV, XD and YD.
* : The segments of Icon are not rotated.
- 21 -
NJU6815
No.HVXDYD
Data writing direction
(Xs, Ys)
Display image
Valid address
Xs < Xe
1 0 0 0
Ys < Ye
(Xe, Ye)
(Xe, Ye)
Xs < Xe
2 0 0 1
Ys > Ye
(Xs, Ys)
(Xs, Ys)
Xs > Xe
3 0 1 0
Ys < Ye
(Xe, Ye)
(Xe, Ye)
Xs > Xe
4 0 1 1
Ys > Ye
(Xs, Ys)
(Xs, Ys)
Xs < Xe
5 1 0 0
Ys < Ye
(Xe, Ye)
(Xe, Ye)
Xs < Xe
6 1 0 1
Ys > Ye
(Xs, Ys)
(Xs, Ys)
Xs > Xe
7 1 1 0
Ys < Ye
(Xe, Ye)
(Xe, Ye)
Xs >Xe
8 1 1 1
Ys > Ye
(Xs, Ys)
*:The display image shows the display direction when the same data as No.1 are written into RAM for
condition change.
*: The outside address of RAM must not be set for correct operation.
Xs : start address of X , Ys : Start address of Y, Xe : End address of X, Ye : End address of Y
- 22 -
NJU6815
(10) The relationship among the DDRAM column address
X=00H (Lower)
SEG79
Palette B
Palette C
C1
Palette A
C2
Palette C
B1
X=4FH
B2
SEG78
A1
Palette B
A2
Palette A
C1
Palette C
X=4EH
C3
B0
C0
A3
A0
B3
B0
C3
C0
X=4EH (Lower)
X=4EH (Lower)
Palette C
X=4FH
X=4FH (Upper)
X=4FH (Upper)
Palette A
X=4FH (Lower)
Palette C
X=4FH (Lower)
Palette B
SEG79
D3 D2 D1 D0 D7 D6 D5 D4 D3 D2 D1 D0 D3 D2 D1 D0 D7 D6 D5 D4 D3 D2 D1 D0
Palette B
SEG78
X=4EH (Upper)
Palette A
X=4FH
B3
Palette C
C0
A0
D7 D6 D5 D4 D3 D2 D1 D0
C1
A1
-
C2
-
C3
-
B0
-
B1
A2
SEG1
- D7 D6 D5 D4 D3 D2 D1 D0
X=4EH
-
C0
-
C3
-
B2
A3
Palette B
- D7 D6 D5 D4 D3 D2 D1 D0
C1
Palette A
-
C2
Palette C
-
X=01H
-
B1
A0
SEG0
D7 D6 D5 D4 D3 D2 D1 D0
B2
A1
Palette B
-
B0
X=00H (Upper)
D7 D6 D5 D4 D2 D1 D0 D7 D4 D3 D2 D1 D7 D6 D5 D4 D2 D1 D0 D7 D4 D3 D2 D1
X=4EH (Upper)
D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
X=4EH
D15 D14 D13 D12 D10 D9 D8 D7 D4 D3 D2 D1 D15 D14 D13 D12 D10 D9 D8 D7 D4 D3 D2 D1
C2
SEG1
X=01H (Lower)
B1
Palette B
X=01H
X=01H (Upper)
B3
B3
A2
RAM Map 1
X=00H
X=00H (Upper)
D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
A0
D3 D2 D1 D0 D7 D6 D5 D4 D3 D2 D1 D0 D3 D2 D1 D0 D7 D6 D5 D4 D3 D2 D1 D0
D7 D6 D5 D4 D2 D1 D0 D7 D4 D3 D2 D1 D7 D6 D5 D4 D2 D1 D0 D7 D4 D3 D2 D1
B2
Palette A
C0
C0
X=01H (Lower)
A3
A3
Palette A
-
X=00H
-
Palette C
SEGAx
SEGCx
C1
X=01H (Upper)
A1
Palette C
A0
Note6) In 8-bit access mode(non C256 mode) for DDRAM, After address set up display data will be written in an order
from lower to higher.
This order has no relation with address direction of RAM access (Display rotation)
Note1) In the 256-color mode, the vacant LSB bit is filled with "1".
Note2) The function of 256-color mode is different from that of fixed 8-gradation mode (fixed 256-color mode).
Note3) The written data in the DD RAM in "C256"=0 is not compatible with the data in "C256"=1.
Note4) In the 256-color mode, only 8-bit length mode is available, but 16-bit is not.
Note5) In 8-bit access mode(C256 mode) for DDRAM, sequential twice accesses to DDRAM complete one pixel data
access. Therefore, it must be accessed with a couple of operation.
-
Palette B
SEGBx
SEGBx
C2
X=00H (Lower)
A2
SEG0
C1
Palette B
C2
Palette A
X=01H
C3
C3
Mode
X=00H
B0
B0
0
B1
B1
0
B2
B2
1
B3
D15 D14 D13 D12 D10 D9 D8 D7 D4 D3 D2 D1 D15 D14 D13 D12 D10 D9 D8 D7 D4 D3 D2 D1
B3
B3
A0
0
A1
A1
1
A2
A2
1
A3
A3
16bit
C0
C0
0
C1
C1
0
C2
C2
0
1
C3
C3
8bit
X
B1
B1
RAM Map 2 (256 Color Mode)
Mode
0
B0
B0
C0
8bit
A0
B3
C1
0
A1
B2
Palette A
SEGAx
SEGCx
B2
B2
1
A2
A0
C2
0
A3
B3
SWAP
0
1
A1
A1
C3
256
A0
256
A2
A2
B0
ABS
ABS
A3
A3
B1
WLS
W LS
SWAP
- 23 -
- 24 -
palette
C
#$
SEGA79
#$
Column address / bit / segment assign
#$
D0
D1
D0
D1
D2
palette
C
D2
SEGC79
D3
D3
D5
D4
X=4FH
D4
palette
B
Column address / bit / segment assign
#$
D5
SEGB79
SEGA79
SEGB79
palette
C
palette
B
palette
A
SEGC79
D1
D2
D3
D4
D7
D8
D9
D10
D12
D13
D14
D15
Column address / bit / segment assign
#$
D6
D7
D8
D9
D10
D1
D2
D3
SEGC79
SEGB79
palette
C
palette
B
palette
A
palette
C
SEGC0
SEGA79
palette
B
SEGB0
D1
D2
D3
D4
D7
D8
D9
D10
D12
D13
D14
D15
D1
D2
D3
D4
D7
D8
D9
D10
D12
D13
D14
D15
Column address / bit / segment assign
#$
D6
D7
D8
palette
A
#$
SEGA79
#$
D9
#$
D11
palette
C
SEGA0
#$
D10
D0
D1
D2
D4
D7
D8
D9
palette
A
SEGA0
#$
D11
palette
C
SEGC0
palette
B
SEGB0
D10
D12
D13
D14
#$
palette
B
D0
D1
D2
X=00H
#$
SEGB79
palette
C
SEGA0
X=00H
D3
D4
D5
D6
palette
A
#$
SEGC0
X=00H
D3
ABS SWAP
1
1
D4
palette
B
SEGB0
ABS SWAP
1
0
D5
D7
D8
D9
D10
ABS SWAP
0
1
D6
palette
A
#$
SEGA0
D15
X=00H
palette
A
palette
B
SEGB0
D7
D8
D9
D10
D11
ABS SWAP
0
0
SEGC79
palette
A
#$
SEGC0
D11
NJU6815
(11) Display data and segment drivers
In the color mode, and 16-bit data bus mode
X=4FH
X=4FH
X=4FH
palette
C
SEGA79
#$
palette
B
#$
D0
D1
D2
SEGC79
palette
C
D0
D1
D2
D3
D4
SEGA79
palette
C
palette
B
SEGB79
D1
D2
D3
D4
D7
D0
D1
D2
D4
D5
D6
D7
Column address / bit / segment assign
#$
X=00H(Lower)
X=4FH(Upper)
D3
Column address / bit / segment assign
#$
X=00H(Lower)
X=4FH(Upper)
D5
D6
palette
A
SEGC79
D1
D2
D3
palette
C
palette
B
SEGB79
SEGC79
palette
A
SEGC0
SEGA79
palette
C
SEGB0
D1
D2
D3
D4
D7
D0
D1
D2
D4
D5
D6
D1
D2
D3
D4
D7
D0
D1
D2
D4
D5
D6
D7
Column address / bit / segment assign
#$
X=00H(Lower)
X=4FH(Upper)
D4
palette
B
SEGB79
D7
D0
D1
D2
Column address / bit / segment assign
#$
X=00H(Lower)
X=4FH(Upper)
D5
D6
D7
D0
D1
#$
palette
A
#$
SEGA79
#$
D3
palette
C
SEGA0
#$
D2
D0
D1
D2
palette
B
SEGA0
#$
D3
palette
C
SEGC0
D4
D7
D0
D1
palette
A
#$
SEGB79
D0
D1
D2
D3
palette
B
SEGB0
D2
D4
D5
D6
#$
palette
A
palette
C
SEGA0
ABS SWAP
1
1 X=00H(Upper)
D4
D5
D6
palette
A
#$
SEGC0
X=00H(Upper)
D3
palette
B
SEGB0
D7
D0
D1
D2
ABS SWAP
1
0 X=00H(Upper)
D4
D5
D6
palette
A
#$
SEGA0
D7
X=00H(Upper)
SEGC79
palette
B
#$
SEGB0
D7
D0
D1
D2
D7
ABS SWAP
0
1
palette
A
D3
ABS SWAP
0
0
SEGC0
D3
NJU6815
In the color mode, and 8-bit data bus mode
X=4FH(Lower)
X=4FH(Lower)
X=4FH(Lower)
X=4FH(Lower)
- 25 -
- 26 palette
C
#$
SEGA79
#$
Column address / bit / segment assign
#$
D0
palette
C
D3
D0
D1
SEGC79
palette
B
D1
SEGB79
D4
D5
D6
D7
D2
X=4FH
D2
D3
palette
A
SEGA79
D0
D1
D2
D3
Column address / bit / segment assign
#$
D4
D5
D6
D7
palette
C
SEGC0
#$
palette
B
D0
D1
palette
B
SEGB0
D4
D5
D6
#$
SEGB79
palette
C
SEGA0
X=00H
D2
D3
palette
A
#$
SEGA0
X=00H
palette
A
palette
B
SEGB0
ABS SWAP
*
1
D4
D5
D6
D7
ABS SWAP
*
0
SEGC79
palette
A
#$
SEGC0
D7
NJU6815
In the color mode, 8-bit data bus mode, and C256 mode (C256=1)
X=4FH
#$
SEGA79
Column address / bit / segment assign
#$
SEGC79
D1
D0
D4
D3
D2
D6
D5
Column address / bit / segment assign
#$
SEGA79
D1
D0
D4
D3
D2
D6
D5
D8
D7
Column address / bit / segment assign
#$
D8
D7
SEGB79
D11
D10
D9
SEGC79
SEGB79
SEGA79
D2
D1
D0
D4
D3
D8
D7
D6
D5
D12
D11
D10
D9
D15
D14
D13
#$
D11
D10
D9
D13
D12
D15
D14
SEGC79
#$
SEGB79
SEGA79
D13
D12
D15
D14
SEGC0
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
Column address / bit / segment assign
#$
D2
D1
D0
D6
D5
D4
D3
SEGB79
#$
D10
D9
D8
D7
X=00H
#$
SEGC79
ABS SWAP
1
1
#$
D14
D13
D12
D11
X=00H
D15
ABS SWAP
1
0
SEGA0
X=00H
SEGC0
SEGB0
SEGA0
X=00H
SEGA0
#$
SEGB0
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
#$
SEGC0
ABS SWAP
0
1
SEGB0
SEGA0
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
ABS SWAP
0
0
SEGB0
SEGC0
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
NJU6815
In the B&W mode, and 16-bit data bus mode
X=4FH
X=4FH
X=4FH
X=4FH
- 27 -
NJU6815
In the B&W mode, and 8-bit data bus mode
D1
D2
D3
D4
SEGC79
D7
D1
D2
D3
D4
SEGA79
D7
D1
D0
D1
D0
D2
D3
SEGC79
D4
D5
D6
D2
D3
SEGA79
D4
D5
D6
D7
X=4FH(Lower)
SEGB79
D0
D1
D2
D3
#$
SEGC79
D0
D1
D2
#$
D0
D1
D2
D7
X=4FH(Lower)
SEGB79
D0
D1
D2
D3
#$
SEGA79
D0
#$
X=4FH(Lower)
SEGB79
D4
D5
D6
D7
#$
SEGC79
D1
D2
D1
D2
D3
SEGC0
D3
D4
D5
D6
D7
D0
D1
D2
SEGB79
D4
D5
D6
D7
SEGA79
D1
D2
D3
D3
#$
Column address / bit / segment assign
#$
X=00H(Lower)
X=4FH(Upper)
SEGB0
D0
D4
SEGA0
D7
D4
D5
D6
D7
SEGB0
D0
D1
D1
D2
#$
Column address / bit / segment assign
#$
X=00H(Lower)
X=4FH(Upper)
ABS SWAP
1
1 X=00H(Upper)
D3
D0
D1
SEGB0
D2
D4
D5
D6
D7
SEGC0
D2
SEGA0
D3
ABS SWAP
1
0 X=00H(Upper)
#$
X=4FH(Lower)
Column address / bit / segment assign
#$
X=00H(Lower)
X=4FH(Upper)
X=00H(Upper)
SEGC0
D4
SEGC0
D7
D0
D1
D2
SEGB0
D4
D5
D6
D7
SEGA0
ABS SWAP
0
1
- 28 -
Column address / bit / segment assign
#$
X=00H(Lower)
X=4FH(Upper)
X=00H(Upper)
SEGA0
ABS SWAP
0
0
NJU6815
Bit assignments between write and read data (in the 16-bit data bus mode)
ABS=0
Write data
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
Read data
D15
D14
D13
D12
*
D10
D9
D8
D7
*
*
D4
D3
D2
D1
*
Write data
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
Read data
*
*
*
*
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
ABS=1
Examples of write and read data (In the 8 bit bus mode)
ABS=0, C256=0 (Address; Upper bit)
Write data
D7
D6
D5
D4
D3
D2
D1
D0
Read data
D7
D6
D5
D4
*
D2
D1
D0
ABS=0, C256=0 (Address; Lower bit)
Write data
D7
D6
D5
D4
D3
D2
D1
D0
Read data
D7
*
*
D4
D3
D2
D1
*
ABS=1, C256=0 (Address; Upper bit)
Write data
D7
D6
D5
D4
D3
D2
D1
D0
Read data
*
*
*
*
D3
D2
D1
D0
ABS=1, C256=0 (Address; Lower bit)
Write data
D7
D6
D5
D4
D3
D2
D1
D0
Read data
D7
D6
D5
D4
D3
D2
D1
D0
Write data
D7
D6
D5
D4
D3
D2
D1
D0
Read data
D7
D6
D5
D4
D3
D2
D1
D0
ABS=0, C256=1
*: Invalid Data
- 29 -
NJU6815
(12) Gradation palette
In the gradation mode, either variable or fixed gradation mode is selected by programming the “PWM”
register of the “Gradation control” instruction.
PWM=0:
Variable gradation mode
(Select 16 gradation levels out of 32-gradation level of the gradation palette)
PWM=1:
Fixed gradation mode
(Fixed 8-gradation levels)
In these modes, each of the gradation palettes Aj, Bj and Cj can select 16-gradation level out of 32-gradation
level by setting 5-bit data to the “PA” registers in the “Gradation palette j” instructions (j=0 to Fh).
For instance, the gradation palettes Aj correspond to the SEGAi, the Bj to SEGBi and the Cj to SEGCi (j=0 to
15, i=0 to 79)
Correspondence between display data and gradation palettes
Table 10 (Palette Aj, Palette Bj, Palette Cj (j=0 to 15))
(MSB) Display data (LSB)
0
0
0
0
0
0
0
1
0
0
1
0
0
0
1
1
0
1
0
0
0
1
0
1
0
1
1
0
0
1
1
1
1
0
0
0
1
0
0
1
1
0
1
0
1
0
1
1
1
1
0
0
1
1
0
1
1
1
1
0
1
1
1
1
Gradation palette
Palette 0
Palette 1
Palette 2
Palette 3
Palette 4
Palette 5
Palette 6
Palette 7
Palette 8
Palette 9
Palette10
Palette11
Palette12
Palette13
Palette14
Palette15
Default palette value
00000
00011
00101
00111
01001
01011
01101
01111
10001
10011
10101
10111
11001
11011
11101
11111
Gradation palette table (Variable gradation mode, PWM=”0”, MON=”0”)
Table 11 (Palette Aj, Palette Bj, Palette Cj (j=0 to 15))
- 30 -
Palette value
Gradation level
Gradation palette
00000
00001
00010
00011
00100
00101
00110
00111
01000
01001
01010
01011
01100
01101
01110
01111
0
1/31
2/31
3/31
4/31
5/31
6/31
7/31
8/31
9/31
10/31
11/31
12/31
13/31
14/31
15/31
Palette 0(default)
Palette 1(default)
Palette 2(default)
Palette 3(default)
Palette 4(default)
Palette 5(default)
Palette 6(default)
Palette 7(default)
Palette
value
10000
10001
10010
10011
10100
10101
10110
10111
11000
11001
11010
11011
11100
11101
11110
11111
Gradation
level
16/31
17/31
18/31
19/31
20/31
21/31
22/31
23/31
24/31
25/31
26/31
27/31
28/31
29/31
30/31
31/31
Gradation palette
Palette 0(default)8
Palette 9(default)
Palette 10(default)
Palette 11(default)
Palette 12(default)
Palette 13(default)
Palette 14(default)
Palette 15(default)
NJU6815
Gradation palette table (Fixed gradation mode, PWM=”1”, MON=”0”)
Table 12 8-gradation segment drivers
(MSB) Display data (LSB)
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
*
*
*
*
*
*
*
*
Gradation
level
0/7
(MSB) Display data (LSB)
Gradation level
0
0
*
*
1/7
2/7
3/7
4/7
5/7
6/7
7/7
0
0
0
1
1
1
1
0
1
1
0
0
1
1
*
*
*
*
*
*
*
*
*
*
*
*
*
*
0/7
3/7
5/7
7/7
Correspondence between display data and gradation level (B&W mode, MON=”1”)
Table 13
(MSB) Display data (LSB)
0
*
1
*
*:Don’t care
*
*
*
*
Gradation
level
0
1
- 31 -
NJU6815
(13) Gradation control and display data
(13-1) Gradation mode
In the graduation mode, each pixel for RGB corresponds to successive 3 segment drivers, and each
segment driver provides 16-gradation PWM output by controlling 4 bit display data of the DDRAM.
Accordingly, the LSI can drive up to 128x80 pixels in 4096-color (16-gradation x 16-gradation x 16gradation = 4-bit x 4-bit x 4-bit).
In addition, the LSI can transfer the display data for the RGB by 16-bit at once or 8-bit two-times. The
data assignment between gradation palettes and segment drivers varies in accordance with setting for the
“SWAP” registers of the "Display control (2)" instruction
- SWAP = 0
SEGAi
SEGBi
Palette Aj
Palette Bj
SEGCi
(i=0 to 79)
Gradation palette
j=0 to 15
Palette Cj
Gradation control circuit
0
MSB
0
0
0
0
LSB MSB
0
0
0
D7
0
D6
0
D5
0
D4
ABS=1
(D3
D2
D1
C256=1
(D7
D6
D5
1
1
LSB MSB
1
1
0
D2
0
D1
0
D0
1
D7
D0
D7
D6
D5
*
D4
D3
D2
1
LSB
1
D4
1
D3
1
D2
1
D1
D4
D3
D2
D1
D 0)
*
D1
D0
*
*)
Display data in DDRAM
Display data from MPU
(Upper bit / Lower bit)
- SWAP = 1
SEGAi
SEGBi
Palette Aj
Palette Bj
SEGCi
(i=0 to 79)
Gradation palette
j=0 to 15
Palette Cj
Gradation control circuit
1
LSB
1
1
0
D7
ABS=1 (D3
0
D6
D2
0
D5
D1
0
D4
D0
C256=1
D6
D5
*
- 32 -
(D7
1
1
MSB LSB
0
0
0
0
MSB LSB
0
D2
D7
0
D1
D6
0
D0
D5
1
D7
D4
D4
D3
D2
*
Display data in DDRAM
0
MSB
0
0
1
D4
D3
1
D3
D2
1
D2
D1
1
D1
D 0)
D1
D0
*
*)
Display data from MPU
(Upper bit / Lower bit)
NJU6815
In the 16-bit data bus mode, the data assignments between the gradation palettes and the segment
drivers vary in accordance with setting for the “SWAP” bit of the "Display control (2)" instruction as well as
the assignment in the 8-bit data bus mode.
- SWAP = 0
SEGAi
SEGBi
SEGCi
(i=0 to 79)
Palette Aj
Palette Bj
Gradation palette
j=0 to 15
Palette Cj
Gradation control circuit
ABS=1
0
MSB
0
0
0
D15
0
D14
0
D13
0
D12
D9
D8
(D11 D10
0
0
LSB MSB
0
0
1
1
LSB MSB
0
D10
0
D9
0
D8
1
D7
D7
D6
D5
D4
1
1
1
LSB
1
D4
1
D3
1
D2
1
D1
D3
D2
D1
D 0)
Display data in DDRAM
Display data from MPU
- SWAP = 1
SEGAi
SEGBi
Palette Aj
Palette Bj
SEGCi
(i=0 to 79)
Gradation palette
j=0 to 15
Palette Cj
Gradation control circuit
1
LSB
1
0
0
D15 D14
ABS=1 (D11 D10
1
0
D13
D9
1
1
MSB LSB
0
D12
D8
0
D10
D7
0
0
0
D9
D6
0
D8
D5
0
0
MSB LSB
1
D7
D4
1
D4
D3
0
0
1
D3
D2
1
D2
D1
Display data in DDRAM
0
MSB
1
D1
D 0)
Display data from MPU
- 33 -
NJU6815
(13-2) B&W mode (MON=”1”)
In the B&W mode, 3 bits of the MSB data are used in both of the 16-bit and 8-bit data bus modes.
In the 16-bit data bus mode (Similarly 8-bit data bus access)
- SWAP = 0
SEGAi
SEGBi
SEGCi
Palette Aj
Palette Bj
(i=0 to 79)
Gradation palette
j=0 to 15
Palette Cj
Gradation control circuit
ABS=1
0
MSB
0
0
0
0
0
0
D15
D14
D13
D9
(D11 D10
0
0
LSB MSB
0
0
1
1
LSB MSB
1
1
0
0
0
1
D12
D10
D9
D8
D8
D7
D6
D5
1
LSB
1
1
1
1
D7
D4
D3
D2
D1
D4
D3
D2
D1
D 0)
Display data in DDRAM
Display data in DDRAM
- SWAP = 1
SEGAi
SEGBi
Palette Aj
Palette Bj
SEGCi
(i=0 to 79)
Gradation palette
j=0 to 15
Palette Cj
Gradation control circuit
ABS=1
- 34 -
1
LSB
1
1
0
0
0
0
D15
D14
D13
D9
(D11 D10
1
1
MSB LSB
0
0
0
0
MSB LSB
0
0
0
1
D12
D10
D9
D8
D8
D7
D6
D5
Display data in DDRAM
0
MSB
0
0
1
1
1
1
D7
D4
D3
D2
D1
D4
D3
D2
D1
D 0)
Display data in DDRAM
Column address;
nH
NJU6815
(14) Display timing generator
The display-timing generator creates the timing pulses such as the CL, the FLM, the FR and the CLK by
dividing the oscillation frequency oscillate an external or internal resister mode. The each of timing pulses is
outputted through the each output terminals by “SON”=1.
(15) LCD line clock (CL)
The LCD line clock (CL) is used as a count-up signal for the line counter and a latch signal for the data latch
circuit. At the rising edge of the CL signal, the line counter is counted-up and the 240-bit display data,
corresponding to this line address, is latched into the data latch circuit. And at the falling edge of the CL signal,
this latched data output on the segment drivers. Read out timing of the display data, from DDRAM to the latch
circuits is completely independent of the access timing to the MPU. For this reason, the MPU can access to the
LSI regardless of an internal operation.
(16) LCD alternate signal (FR) and LCD synchronous signal (FLM)
The FR and FLM signals are created from the CL signal. The FR signal is used to alternate the crystal
polarization on a LCD panel. It is programmed that the FR signal is toggle on every frame in the default setting
or once every N lines in the N-line inversion mode. The FLM signal is used to indicate a start line of a new
display frame. It presets an initial display line address of the line counter when the FLM signal becomes ”1”.
(17) Data latch circuit
The data latch circuit is used temporarily store the display data that will output to the segment drivers. The
display data in this circuit is updated in synchronization of the CL signal.
The “All pixels ON/OFF”, “Display ON/OFF” and “Reverse display ON/OFF” instructions change the display
data in this circuit but do not change the display data of the DDRAM.
(18) Common and segment drivers
The LSI includes 240-segment drivers and 128-common drivers. The common drivers generate the LCD
driving waveforms composed of the VLCD, V1, V4 and VSS in accordance with the FR signal and scanning data.
The segment drivers generate waveforms composed of the VLCD, V2, V3 and VSS in accordance with the FR
signal and display data.
- 35 -
NJU6815
LCD Driving waveforms (In the B&W mode, Reverse display OFF, 1/129 duty)
COM0
129 1
2 3 4 5
129 1
2 3 4 5
129 1
COM1
SEG2
SEG1
SEG0
CL
FLM
FR
COM0
VLCD
V1
V2
V3
V4
VSS
COM1
VLCD
V1
V2
V3
V4
VSS
VLCD
V1
V2
V3
V4
VSS
SEG0
VLCD
V1
V2
V3
V4
VSS
SEG1
Fig 8
- 36 -
NJU6815
(19) Oscillator
The oscillator generates internal clocks for the display timing and the voltage booster. Since the LSI has internal
capacitor (C) and resistor (R) for the oscillation, external capacitor and resistor are not usually required. However,
in case that an external resistor is used, the resister is connected between the OSC1 and OSC2 terminals. The
external resistor becomes enabled by setting “1” to the “CKS” register of “Data bus length” instruction. When the
internal oscillator is not used, the external clocks with 50% duty cycle ratio must be input to the OSC1 terminal.
In addition, the feed back resister for the oscillation is varied by programming the “Rf” register of the
“Frequency control” instruction, so that it is possible to optimize the frame frequency for a LCD panel. Setting
examples of the MON (B&W /Gradation) and the PWM (Variable gradation /Fixed gradation) are described, as
follows.
Internal oscillation mode (CKS=0)
Symbol
FR1
FR2
FR3
MON
0
0
1
PWM
0
1
*
Display mode
Variable gradation mode
Fixed gradation mode
B&W mode
*: Don’t care
External resistor oscillation mode(CKS=1)
The internal clocks must be adjusted to the same frequency as the one in using the internal oscillation
mode, and the “MON” and “PWM” registers must be set as well.
External clock input mode(CKS=1)
The external clocks must be adjusted to the same frequency as the one in using the internal oscillation
mode, and the “MON” and “PWM” registers must be set as well.
(20) Power supply circuits
The internal power supply circuits are composed of the voltage booster, the electrical variable resister (EVR),
the voltage regulator, reference voltage generator and the voltage followers.
The condition of the power supply circuits is arranged by programming the “DCON” and “AMPON” registers
on the “Power control” instruction. For this arrangement, some parts of the internal power supply circuits are
activated in using an external power supply, as shown in the following table.
Table 15
DCON
AMPON
Voltage booster
0
0
1
0
1
1
Disable
Disable
Enable
Voltage followers
Voltage regulator
EVR
Disable
Enable
Enable
External voltage
Note
VOUT, VLCD, V1, V2, V3, V4
VOUT
−
1, 3
2, 3
−
Note1) The internal power circuits are not used. The external VOUT is required and the C1+, C1-, C2+, C2-, C3+,
C3-, C4+, C4-, C5+, C5-, VREF, VREG and VEE terminals must be open.
Note2) The internal power circuits except the voltage booster are used. The external VOUT is required and the
C1+, C1-, C2+, C2-, C3+, C3-, C4+, C4-, C5+, C5- and VEE terminals must be open. The reference voltage is
required to VREF terminal.
Note3) The relation among the voltages should be maintained as follows.
VOUT ≥ VLCD ≥ V1 ≥ V2 ≥ V3 ≥ V4 ≥ VSS
- 37 -
NJU6815
(21) Voltage booster
The voltage booster generates maximum 6x voltage of the VEE level. It is programmed so that the boost level
is selected out of 1x, 2x, 3x, 4x, 5x and 6x by the “Boost level select” instruction. The boosted voltage VOUT
must not exceed beyond the value of 18.0V, otherwise the voltage stress may cause a permanent damage to
the LSI.
Boosted voltages
VOUT=18V
VOUT=9V
VEE=3V
VEE=3V
VSS=0V
VSS=0V
6-time boost
3-time boost
Capacitor connections for the voltage Booster
6-time boost
C1+
C1C2+
C2C3+
C3C4+
C4C5+
C5VOUT
VSS
4-time boost
C1+
C1C2+
C2C3+
C3C4+
C4C5+
C5VOUT
VSS
5-time boost
C1+
C1C2+
C2C3+
C3C4+
C4C5+
C5VOUT
VSS
+
+
+
+
+
+
3-time boost
+
+
+
+
C1+
C1C2+
C2C3+
C3C4+
C4C5+
C5VOUT
VSS
Fig 9
- 38 -
+
+
+
+
+
2-time boost
+
+
+
C1+
C1C2+
C2C3+
C3C4+
C4C5+
C5VOUT
VSS
+
+
NJU6815
(22) Reference voltage generator
The reference voltage generator is used to produce the reference voltage (VBA), which is output from the VBA
terminal and should be input to the VREF terminal.
VBA = VEE x 0.9
(23) Voltage regulator
The voltage regulator, composed of the gain control circuit and an operational amplifier, and is used to gain
the reference voltage (VREF) and to create the regulated voltage (VREG). The VREG is used as an input voltage to
the EVR circuits, which is programmed by the “VU” register of the “Boost level” instruction.
VREG = VREF x N
(N: register value for the boost level)
(24) Electrical variable resister (EVR)
The EVR is variable within 128-step, and is used to fine-tune the LCD driving voltage (VLCD) by programming
the “DV” register in the “EVR control” instruction, so that it is possible to optimize the contrast level for a LCD
panels.
VLCD = 0.5 x VREG + M (VREG - 0.5 x VREG) / 127 (M: register value for the EVR)
(25) LCD driving voltage generation circuit
LCD driving voltage generation circuit generates the VLCD voltage levels as VLCD, V1, V2, V3 and V4 with
internal E.V.R and the Bleeder resistors. The bias ratio of the LCD driving voltage is selected out of 1/5, 1/6, 1/7,
1/8, 1/9, 1/10, 1/11 and 1/12.
In using the internal power supply, the capacitors CA2 must be connected to the VLCD, V1, V2, V3 and V4
terminals, and the CA2 value must be determined by the evaluation with actual LCD modules.
In using the external power supply, the external LCD driving voltages such as the VLCD, V1, V2, V3 and V4 are
supplied and the internal power supply circuits must be set to “OFF” by DCON = AMPON = "0". In this mode,
voltage booster terminals such as C1+, C1-, C2+, C2-, C3+, C3-, C4+, C4-, C5+, C5-, VEE, VREF and VREG must be
opened.
In case that the voltage booster is not used but only some parts of internal power supply circuits (Voltage
followers, Voltage regulator and EVR) are used, the C1+, C1-, C2+, C2-, C3+, C3-, C4+, C4-, C5+ and C5terminals must be opened. And, the external power supply is input to the VOUT terminal, and the reference
voltage to the VREF terminal. The capacitor CA3 must connect to the VREG terminal for voltage stabilization.
- 39 -
NJU6815
Connections of the capacitor for the voltage booster
Using all of the internal power supply circuits
(6-time boost)
VDD
VDD
VDD
VEE
CA1
CA3
CA3
VSS
VS
VDD
VEE
CA1
VBA
VBA
VREF
VREF
VREG
VREG
C 1-
C 1-
CA1
C 1+
C 1+
C 2-
C 2-
CA1
C 2+
C 2+
C 3-
C 3-
CA1
C 3+
C 3+
C 4-
CA1
C 4+
C 4-
NJU6815
C 4+
C 5+
C 5+
VOUT
CA1
VSS
CA1
CA2
CA2
CA2
CA2
CA2
NJU6815
C 5-
C 5-
CA1
VSS
Using only external power supply circuits
VLCD
VLCD
V1
VOUT
VLCD
V1
V3
External V1
Power
V2
circuit
V3
V4
V4
V4
V2
Fig 10
Reference values
CA1
1.0 to 4.7uF
CA2
1.0 to 2.2uF
CA3
0.1uF
V2
V3
CA2
CA2
CA2
Fig11
CA2
Note1) B grade capacitor is recommended for CA1-CA3. Testing actual samples with an LCD panel is
recommended to decide an optimum value of these capacitors.
Note2) Parasitic resistance on the power supply lines (VDD, VSS, VEE, VSSH, VOUT, VLCD, V1, V2, V3 and V4)
reduces the step-up efficiency of the voltage booster, and may have an impact on the LSI’s operation
and display quality. To minimize this impact, use the shortest possible wires and place the capacitors
to be as close as possible to the LSI.
- 40 -
NJU6815
Using internal power supply circuits
Without the reference voltage generator(1)
(6-time boost)
VDD
VDD
VDD
VEE
CA1
CA1
VREF
VREF
Thermistor
VBA
C 1-
CA1
CA3
VSS
CA1
C 1+
C 2-
CA1
CA1
C 2+
C 3-
CA1
CA1
C 3+
C 4-
CA1
C 4+
CA1
NJU6815
C 5-
CA1
CA1
C 5+
VOUT
CA1
VSS
CA2
CA2
CA2
CA2
CA2
VDD
VEE
VBA
VREG
CA3
VSS
VSS
Using internal power supply circuit
Without the reference voltage generator(2)
(6-time boost)
CA1
VSS
VREG
C 1C 1+
C 2C 2+
C 3C 3+
C 4C 4+
C 5C 5+
VOUT
VLCD
CA2 VLCD
V1
CA2 V1
V2
CA2 V2
V3
CA2 V3
V4
VSS
Fig 12
NJU6815
CA2 V4
Fig 13
Reference value
CA1
1.0 to 4.7µF
CA2
1.0 to 2.2µF
CA3
0.1µF
Note1) B grade capacitor is recommended for CA1-CA3. Testing actual samples with an LCD panel is
recommended to decide an optimum value of these capacitors.
Note2) Parasitic resistance on the power supply lines (VDD, VSS, VEE, VSSH, VOUT, VLCD, V1, V2, V3 and V4)
reduces the step-up efficiency of the voltage booster, and may have an impact on the LSI’s operation
and display quality. To minimize this impact, use the shortest possible wires and place the capacitors
to be as close as possible to the LSI.
- 41 -
NJU6815
Using internal power supply circuits
Without the voltage booster
VDD
VDD
VEE
CA1
VBA
CA3
VREF
CA3
VSS
VREG
VSS
C 1C 1+
C 2C 2+
C 3C 3+
C 4C 4+
NJU6815
C 5C 5+
External
power
circuit
CA1
VOUT
CA2
CA2
CA2
VLCD
V1
V2
CA2 V3
VSS
CA2 V4
Fig 14
Reference value
CA1
1.0 to 4.7µF
CA2
1.0 to 2.2µF
CA3
0.1µF
Note1) B grade capacitor is recommended for CA1-CA3. Testing actual samples with an LCD panel is
recommended to decide an optimum value of these capacitors.
Note2) Parasitic resistance on the power supply lines (VDD, VSS, VEE, VSSH, VOUT, VLCD, V1, V2, V3 and V4)
reduces the step-up efficiency of the voltage booster, and may have an impact on the LSI’s operation
and display quality. To minimize this impact, use the shortest possible wires and place the capacitors
to be as close as possible to the LSI.
- 42 -
NJU6815
(26) Partial display function
The partial display function is used to partially specify some parts of display area on LCD panels. By using
this function, LCD modules can work in lower duty cycle ratio, lower LCD bias ratio, lower boost level and lower
LCD driving voltage. It is usually used to display a time and calendar, and is also used to optimize the LSI
condition in accordance with the display size. It can be programmed to select the duty cycle ratio (1/17, 1/25,
1/33, 1/41, 1/49, 1/57, 1/65, 1/73, 1/81, 1/89, 1/97, 1/105, 1/113, 1/121, 1/129, in DSE=0), the LCD bias ratio,
the boost level and the EVR value by the instructions.
Partial display image
NJRC
LCD DRIVER
Low Power and
Low Voltage
LCD DRIVER
Normal display
Partial display
Partial display sequence
Optional status
Display OFF (ON/OFF=”0”)
Internal Power supply OFF (DCON=”0”, AMPON=”0”)
WAIT
Setting for LCD driving voltage-related functions
- Boost level
- EVR value
- LCD bias ratio
Internal Power supply ON (DCON=”1”, AMPON=”1”)
WAIT
Setting for display-related functions
- Duty cycle ratio
- Initial display line
- Initial COM line
- Other instructions
Display ON (ON/OFF =”1”)
Partial display Status
- 43 -
NJU6815
(27) Discharge circuit
Discharge circuit is used to discharge the electric charge of the capacitors on the V1 to V4 and VLCD terminals.
This circuit is activated by setting “0” to the “DIS” register of the “Discharge” instruction or by setting “RESb”
terminal to ”0” level. The “Discharge ON/OFF” instruction is usually required just after the internal power supply
is turned off by setting “0” into the “DCON” and “AMPON” registers, or just after the external power supply is
turned off. During the discharge operation, the internal or external power supply must not be turned on.
(28) Reset circuit
The reset circuit initializes the LSI into the following default status. It is activated by setting the RESb
terminal to “0”. The RESb terminal is usually required to connect to MPU reset terminal in order that the LSI can
be initialized at the same timing of the MPU.
●
Default status
1. DDRAM display data
2. column address
3. row address
4. Initial display line
5. Display ON/OFF
6. Reverse display ON/OFF
7. Duty cycle ratio
8. N-line Inversion ON/OFF
9. COM scan direction
10. Address direction of RAM
11. Read modify write
12. SWAP mode
13. EVR value
14. Internal power supply
15. Display mode
16. LCD bias ratio
17. Gradation Palette 0
18. Gradation Palette 1
19. Gradation Palette 2
20. Gradation Palette 3
21. Gradation Palette 4
22. Gradation Palette 5
23. Gradation Palette 6
24. Gradation Palette 7
25. Gradation Palette 8
26. Gradation Palette 9
27. Gradation Palette 10
28. Gradation Palette 11
29. Gradation Palette 12
30. Gradation Palette 13
31. Gradation Palette 14
32. Gradation Palette 15
33. Gradation mode control
34. Data bus length
35. Discharge circuit
- 44 -
:Undefined
:(00)H
:(00)H
:(0)H (1st line)
:OFF
:OFF (normal)
:1/129 duty(DSE=0)
:OFF
:COM0 → COM127
:(HV, XD, YD) = (0, 0, 0)
:OFF (AIM=0)
:OFF (normal)
:(0, 0, 0, 0, 0, 0, 0)
:OFF
:Gradation display mode
:1/9 bias
:(0, 0, 0, 0, 0)
:(0, 0, 0, 1, 1)
:(0, 0, 1, 0, 1)
:(0, 0, 1, 1, 1)
:(0, 1, 0, 0, 1)
:(0, 1, 0, 1, 1)
:(0, 1, 1, 0, 1)
:(0, 1, 1, 1, 1)
:(1, 0, 0, 0, 1)
:(1, 0, 0, 1, 1)
:(1, 0, 1, 0, 1)
:(1, 0, 1, 1, 1)
:(1, 1, 0, 0, 1)
:(1, 1, 0, 1, 1)
:(1, 1, 1, 0, 1)
:(1, 1, 1, 1, 1)
:Variable gradation mode
:8-bit data bus length
:(DIS,DIS2)=(0,0)
NJU6815
(29) Power supply ON/OFF sequences
The following paragraphs describe power supply ON/OFF sequences, which are to protect the LSI from over
current.
(29-1) Using an external power supply
! Power supply ON sequence
Logic voltage (VDD) must be always input first, and next the LCD driving voltages (V1 to V4 and VLCD)
are turned on. In using the external VOUT, the VDD must be input first, next the reset operation must be
performed, and finally the VOUT can be input.
! Power supply OFF sequence
Either the reset operation, cutting off the V1 to V4 and VLCD from the LSI by the RESb terminal or the
“Power control” instruction must be performed first, and next the VDD is turned off. It is recommended
that a series-resister between 50Ω and 100Ω is added on the VLCD line (or VOUT line in using only the
external VOUT voltage) in order to protect the LSI from the over current.
(29-2) Using the internal power supply circuits
! Power supply ON sequence
The VDD must be input first, next the reset operation must be performed, and finally the V1 to V4 and
VLCD can be turned on by setting “1” to the “DCON” and “AMPON” registers of the “Power control”
instruction.
! Power supply OFF sequence
Either the reset operation by the RESb terminal or the “Power control” instruction must be
performed first, and next the input voltage for the voltage booster (VEE) and the VDD can be turned off.
If the VEE is supplied from different power sources for VDD, the VEE is turned off first, and next the VDD
is turned off.
- 45 -
NJU6815
(30) Referential instruction sequences
(30-1) Initialization in using the internal power supply circuits
VDD, VEE power ON
Wait for power-ON stabilization
RESET Input
WAIT
Setting for LCD driving voltage-related functions
- EVR value
- LCD bias ratio
- Power control (DCON=”1”, AMPON=”1”)
End of initialization
(30-2) Display data writing
End of Initialization
Setting for display-related functions
- Initial display line
- Address direction of RAM (HV, XD, YD)
- Column address / -Row address (Start)
- Column address / -Row address (End)
Display data write
Display ON (ON/OFF =”1”)
*: Before display data write / read operation, the address directions should be set first , then Column
address set / Row address set of start point and end are set in order. (Display data write / read for whole
display area or a portion requires the same procedure as above.)
To avoid incorrect data writing into registers by noise and so forth, the written data from registers should
be checked after write operation.
- 46 -
NJU6815
(30-3) Power OFF
Optional status
Power save or reset operation
- All COM/SEG output VSS level.
Discharge ON
WAIT
VEE, VDD power OFF
- 47 -
NJU6815
(31) Instruction table
Instruction Table (1)
Code (80 series MPU I/F)
Instructions
Code
CSb RS RDb WRb RE2 RE1 RE0 D7
D6
D5
D4
Functions
D3
D2
D1
D0
Display data write
0
0
1
0
0/1 0/1 0/1
Write Data
Write display data to DDRAM
Display data read
0
0
0
1
0/1 0/1 0/1
Read Data
Read display data from DDRAM
column address
(Lower) [0H]
0
1
1
0
0
0
0
0
0
0
0
AX3
AX2
AX1
AX0
DDRAM column address
column address
(Upper) [1H]
0
1
1
0
0
0
0
0
0
0
1
AX7
AX6
AX5
AX4
DDRAM column address
row address
(Lower) [2H]
0
1
1
0
0
0
0
0
0
1
0
AY3
AY2
AY1
AY0
DDRAM row address
row address
(Upper) [3H]
0
1
1
0
0
0
0
0
0
1
1
*
AY6
AY5
AY4
DDRAM row address
Initial display line
(Lower) [4H]
0
1
1
0
0
0
0
0
1
0
0
LA3
LA2
LA1
LA0
Row address for an initial COM line
(Scan start line)
Initial display line
(Upper) [5H]
0
1
1
0
0
0
0
0
1
0
1
*
LA6
LA5
LA4
Row address for an initial COM line
(Scan start line)
N-line inversion
(Lower) [6H]
0
1
1
0
0
0
0
0
1
1
0
N3
N2
N1
N0
The number of N-line inversion
N-line inversion
(Upper) [7H]
0
1
1
0
0
0
0
0
1
1
1
*
N6
N5
N4
The number of N-line inversion
0
1
1
0
0
0
0
1
0
0
0
SHIFT: Common direction
Display control (1)
[8H]
Display control (2)
[9H]
Increment control
[AH]
Power control
[BH]
Duty cycle ratio
[CH]
Boost level
[DH]
LCD bias ratio
[EH]
RE register
[FH]
Note 1)
Note 2)
Note 3)
- 48 -
SHIFT MON
ALL
ON
ON/ MON: Gradation or B/W display mode
OFF ALLON: All pixels ON/OFF
ON/OFF: Display ON/OFF
REV: Reverse display ON/OFF
NLIN: N-line inversion ON/OFF,
SWAP: SWAP mode ON/OFF
0
1
1
0
0
0
0
1
0
0
1
REV
0
1
1
0
0
0
0
1
0
1
0
AIM
HV
XD
0
1
1
0
0
0
0
1
0
1
1
AMP
ON
HALT
DC
ON
0
1
1
0
0
0
0
1
1
0
0
DS3
DS2
DS1
DS0
Sets LCD duty cycle ratio
0
1
1
0
0
0
0
1
1
0
1
*
VU2
VU1
VU0
Sets boost level
0
1
1
0
0
0
0
1
1
1
0
*
B2
B1
B0
0
1
1
0
1
1
1
1
TST0
RE2
RE1
0/1 0/1 0/1
NLIN SWAP
*
AIM: Read-modify-write ON/OFF
HV: Increment / Decrement direction
XD: Column Increment / Decrement set
YD: Row Increment / Decrement set
AMPON: Voltage followers ON/OFF
HALT: Power save ON/OFF
ACL
DCON: Voltage booster ON/OFF
ACL: Reset
YD
Sets LCD bias ratio
RE0 RE flag set
*
: Don’t care.
[ NH ] : Address of instruction register
The dual instructions including upper and lower bytes is enabled after either upper or lower
bytes are set into the register. The only “EVR control” instruction is enabled after both of the
upper and lower bytes are set.
NJU6815
Instruction Table (2)
Code (80 series MPU I/F)
Instructions
Code
CSb RS RDb WRb RE2 RE1 RE0
D7
D6
D5
D4
Gradation palette A0/A8
(Lower) [0H]
0
1
1
0
0
0
1
0
0
0
0
Gradation palette A0/A8
(Upper) [1H]
0
1
1
0
0
0
1
0
0
0
1
Gradation palette A1/A9
(Lower) [2H]
0
1
1
0
0
0
1
0
0
1
0
Gradation palette A1/A9
(Upper) [3H]
0
1
1
0
0
0
1
0
0
1
1
Gradation palette A2/A10
(Lower) [4H]
0
1
1
0
0
0
1
0
1
0
0
Gradation palette A2/A10
(Upper) [5H]
0
1
1
0
0
0
1
0
1
0
1
Gradation palette A3/A11
(Lower) [6H]
0
1
1
0
0
0
1
0
1
1
0
Gradation palette A3/A11
(Upper) [7H]
0
1
1
0
0
0
1
0
1
1
1
Gradation palette A4/A12
(Lower) [8H]
0
1
1
0
0
0
1
1
0
0
0
Gradation palette A4/A12
(Upper) [9H]
0
1
1
0
0
0
1
1
0
0
1
Gradation palette A5/A13
(Lower) [AH]
0
1
1
0
0
0
1
1
0
1
0
Gradation palette A5/A13
(Upper) [BH]
0
1
1
0
0
0
1
1
0
1
1
Gradation palette A6/A14
(Lower) [CH]
0
1
1
0
0
0
1
1
1
0
0
Gradation palette A6/A14
(Upper) [DH]
0
1
1
0
0
0
1
1
1
0
1
0
1
1
0
1
1
1
1
RE register
[FH]
Note 1)
Note 2)
Note 3)
0/1 0/1 0/1
D3
D2
D1
Functions
D0
PA03/ PA02/ PA01/ PA00/
PA83 PA82 PA81 PA80
Sets palette values to gradation
palette A0(PS=0)/A8(PS=1)
*
PA04/
PA84
Sets palette values to gradation
palette A0(PS=0)/A8(PS=1)
PA11/
PA91
PA10/
PA90
Sets palette values to gradation
palette A1(PS=0)/A9(PS=1)
*
PA14/
PA94
Sets palette values to gradation
palette A1(PS=0)/A9(PS=1)
PA23/ PA22/ PA21/ PA20/
PA103 PA102 PA101 PA100
Sets palette values to gradation
palette A2(PS=0)/A10(PS=1)
PA24/
PA104
Sets palette values to gradation
palette A2(PS=0)/A10(PS=1)
PA33/ PA32/ PA31/ PA30/
PA113 PA112 PA111 PA110
Sets palette values to gradation
palette A3(PS=0)/A11(PS=1)
PA34/
PA114
Sets palette values to gradation
palette A3(PS=0)/A11(PS=1)
PA43/ PA42/ PA41/ PA40/
PA123 PA122 PA121 PA120
Sets palette values to gradation
palette A4(PS=0)/A12(PS=1)
PA44/
PA124
Sets palette values to gradation
palette A4(PS=0)/A12(PS=1)
PA53/ PA52/ PA51/ PA50/
PA133 PA132 PA131 PA130
Sets palette values to gradation
palette A5(PS=0)/A13(PS=1)
PA54/
PA134
Sets palette values to gradation
palette A5(PS=0)/A13(PS=1)
PA63/ PA62/ PA61/ PA60/
PA143 PA142 PA141 PA140
Sets palette values to gradation
palette A6(PS=0)/A14(PS=1)
PA64/
PA144
Sets palette values to gradation
palette A6(PS=0)/A14(PS=1)
*
*
PA13/ PA12/
PA93 PA92
*
*
*
*
*
*
*
*
*
*
*
*
TST0 RE2
*
*
*
*
*
RE1
RE0 RE flag set
*
: Don’t care.
[ NH ] : Address of Instruction register
The dual instructions including upper and lower bytes is enabled after either upper or lower
bytes are set into the register. The only “EVR control” instruction is enabled after both of the
upper and lower bytes are set.
- 49 -
NJU6815
Instruction Table (3)
Code (80 series MPU I/F)
Instructions
Code
CSb RS RDb WRb RE2 RE1 RE0
D7
D6
D5
D4
Gradation palette A7/A15
(Lower) [0H]
0
1
1
0
0
1
0
0
0
0
0
Gradation palette A7/A15
(Upper) [1H]
0
1
1
0
0
1
0
0
0
0
1
Gradation palette B0/B8
(Lower) [2H]
0
1
1
0
0
1
0
0
0
1
0
Gradation palette B0/B8
(Upper) [3H]
0
1
1
0
0
1
0
0
0
1
1
Gradation palette B1/B9
(Lower) [4H]
0
1
1
0
0
1
0
0
1
0
0
Gradation palette B1/B9
(Upper) [5H]
0
1
1
0
0
1
0
0
1
0
1
Gradation palette B2/B10
(Lower) [6H]
0
1
1
0
0
1
0
0
1
1
0
Gradation palette B2/B10
(Upper) [7H]
0
1
1
0
0
1
0
0
1
1
1
Gradation palette B3/B11
(Lower) [8H]
0
1
1
0
0
1
0
1
0
0
0
Gradation palette B3/B11
(Upper) [9H]
0
1
1
0
0
1
0
1
0
0
1
Gradation palette B4/B12
(Lower) [AH]
0
1
1
0
0
1
0
1
0
1
0
Gradation palette B4/B12
(Upper) [BH]
0
1
1
0
0
1
0
1
0
1
1
Gradation palette B5/B13
(Lower) [CH]
0
1
1
0
0
1
0
1
1
0
0
Gradation palette B5/B13
(Upper) [DH]
0
1
1
0
0
1
0
1
1
0
1
0
1
1
0
1
1
1
1
RE register
[FH]
Note 1)
Note 2)
Note 3)
- 50 -
0/1 0/1 0/1
D3
D2
D1
Functions
D0
PA73/ PA72/ PA71/ PA70/
PA153 PA152 PA151 PA150
Sets palette values to gradation
palette A7(PS=0)/A15(PS=1)
PA74/
PA154
Sets palette values to gradation
palette A7(PS=0)/A15(PS=1)
PB03/ PB02/ PB01/ PB00/
PB83 PB82 PB81 PB80
Sets palette values to gradation
palette B0(PS=0)/B8(PS=1)
PB04/
PB84
Sets palette values to gradation
palette B0(PS=0)/B8(PS=1)
PB13/ PB12/ PB11/ PB10/
PB93 PB92 PB91 PB90
Sets palette values to gradation
palette B1(PS=0)/B9(PS=1)
PB14/
PB94
Sets palette values to gradation
palette B1(PS=0)/B9(PS=1)
PB23/ PB22/ PB21/ PB20/
PB103 PB102 PB101 PB100
Sets palette values to gradation
palette B2(PS=0)/B10(PS=1)
PB24/
PB104
Sets palette values to gradation
palette B2(PS=0)/B10(PS=1)
PB33/ PB32/ PB31/ PB30/
PB113 PB112 PB111 PB110
Sets palette values to gradation
palette B3(PS=0)/B11(PS=1)
PB34/
PB114
Sets palette values to gradation
palette B3(PS=0)/B11(PS=1)
PB43/ PB42/ PB41/ PB40/
PB123 PB122 PB121 PB120
Sets palette values to gradation
palette B4(PS=0)/B12(PS=1)
PB44/
PB124
Sets palette values to gradation
palette B4(PS=0)/B12(PS=1)
PB53/ PB52/ PB51/ PB50/
PB133 PB132 PB131 PB130
Sets palette values to gradation
palette B5(PS=0)/B13(PS=1)
PB54/
PB134
Sets palette values to gradation
palette B5(PS=0)/B13(PS=1)
*
*
*
*
*
*
*
*
*
*
*
*
*
*
TST0 RE2
*
*
*
*
*
*
*
RE1
RE0 RE flag set
*
: Don’t care.
[ NH ] : Address of Instruction register
The dual instructions including upper and lower bytes is enabled after either upper or lower
bytes are set into the register. The only “EVR control” instruction is enabled after both of the
upper and lower bytes are set.
NJU6815
Instruction Table (4)
Code (80 series MPU I/F)
Instructions
Code
CSb RS RDb WRb RE2 RE1 RE0
D7
D6
D5
D4
D3
D2
Gradation palette B6/B14
(Lower) [0H]
0
1
1
0
0
1
1
0
0
0
0
Gradation palette B6/B14
(Upper) [1H]
0
1
1
0
0
1
1
0
0
0
1
Gradation palette B7/B15
(Lower) [2H]
0
1
1
0
0
1
1
0
0
1
0
Gradation palette B7/B15
(Upper) [3H]
0
1
1
0
0
1
1
0
0
1
1
*
*
Gradation palette C0/C8
(Lower) [4H]
0
1
1
0
0
1
1
0
1
0
0
PC03/
PC83
Gradation palette C0/C8
(Upper) [5H]
0
1
1
0
0
1
1
0
1
0
1
Gradation palette C1/C9
(Lower) [6H]
0
1
1
0
0
1
1
0
1
1
Gradation palette C1/C9
(Upper) [7H]
0
1
1
0
0
1
1
0
1
Gradation palette C2/C10
(Lower) [8H]
0
1
1
0
0
1
1
1
Gradation palette C2/C10
(Upper) [9H]
0
1
1
0
0
1
1
Gradation palette C3/C11
(Lower) [AH]
0
1
1
0
0
1
Gradation palette C3/C11
(Upper) [BH]
0
1
1
0
0
Gradation palette C4/C12
(Lower) [CH]
0
1
1
0
Gradation palette C4/C12
(Upper) [DH]
0
1
1
0
0
1
1
0
RE register
[FH]
Note 1)
Note 2)
Note 3)
D1
Functions
D0
PB63/ PB62/ PB61/ PB60/
PB143 PB142 PB141 PB140
Sets palette values to gradation
palette B6(PS=0)/B14(PS=1)
PB64/
PB144
Sets palette values to gradation
palette B6(PS=0)/B14(PS=1)
PB73/ PB72/ PB71/ PB70/
PB153 PB152 PB151 PB150
Sets palette values to gradation
palette B7(PS=0)/B15(PS=1)
*
PB74/
PB154
Sets palette values to gradation
palette B7(PS=0)/B15(PS=1)
PC02/
PC82
PC01/
PC81
PC00/
PC80
Sets palette values to gradation
palette C0(PS=0)/C8(PS=1)
*
*
*
PC04/
PC84
Sets palette values to gradation
palette C0(PS=0)/C8(PS=1)
0
PC13/
PC93
PC12/
PC92
PC11/
PC91
PC10/
PC90
Sets palette values to gradation
palette C1(PS=0)/C9(PS=1)
1
1
*
*
*
PC14/
PC94
Sets palette values to gradation
palette C1(PS=0)/C9(PS=1)
0
0
0
PC23/ PC22/ PC21/ PC20/
PC103 PC102 PC101 PC100
Sets palette values to gradation
palette C2(PS=0)/C10(PS=1)
1
0
0
1
PC24/
PC104
Sets palette values to gradation
palette C2(PS=0)/C10(PS=1)
1
1
0
1
0
PC33/ PC32/ PC31/ PC30/
PC113 PC112 PC111 PC110
Sets palette values to gradation
palette C3(PS=0)/C11(PS=1)
1
1
1
0
1
1
PC34/
PC114
Sets palette values to gradation
palette C3(PS=0)/C11(PS=1)
0
1
1
1
1
0
0
PC43/ PC42/ PC41/ PC40/
PC123 PC122 PC121 PC120
Sets palette values to gradation
palette C4(PS=0)/C12(PS=1)
0
1
1
1
1
0
1
PC44/
PC124
Sets palette values to gradation
palette C4(PS=0)/C12(PS=1)
1
1
1
1
0/1 0/1 0/1
*
*
*
*
*
*
*
*
TST0 RE2
*
*
*
*
RE1
RE0 RE flag set
*
: Don’t care.
[ NH ] : Address of Instruction register
The dual instructions including upper and lower bytes is enabled after either upper or lower
bytes are set into the register. The only “EVR control” instruction is enabled after both of the
upper and lower bytes are set.
- 51 -
NJU6815
Instruction Table (5)
Code (80 series MPU I/F)
Instructions
Code
CSb RS RDb WRb RE2 RE1 RE0
D7
D6
D5
D4
D3
D2
D1
Functions
D0
Gradation palette C5/C13
(Lower) [0H]
0
1
1
0
1
0
0
0
0
0
0
Gradation palette C5/C13
(Upper) [1H]
0
1
1
0
1
0
0
0
0
0
1
Gradation palette C6/C14
(Lower) [2H]
0
1
1
0
1
0
0
0
0
1
0
Gradation palette C6/C14
(Upper) [3H]
0
1
1
0
1
0
0
0
0
1
1
Gradation palette C7/C15
(Lower) [4H]
0
1
1
0
1
0
0
0
1
0
0
Gradation palette C7/C15
(Upper) [5H]
0
1
1
0
1
0
0
0
1
0
1
*
*
0
1
1
0
1
0
0
0
1
1
0
SC3
SC2
Display control Signal/
Duty Select
[7H]
0
1
1
0
1
0
0
0
1
1
1
*
*
Gradation mode control
[8H]
0
1
1
0
1
0
0
1
0
0
0
0
1
1
0
1
0
0
1
0
0
1
*
EVR control
(Lower) [AH]
0
1
1
0
1
0
0
1
0
1
0
DV3
DV2
DV1
DV0
Sets EVR level
(Lower bit)
EVR control
(Upper) [BH]
0
1
1
0
1
0
0
1
0
1
1
*
DV6
DV5
DV4
Sets EVR level
(Upper bit)
0
1
1
0
1
0
0
1
1
0
1
*
RF2
RF1
RF0
Oscillation frequency
0
1
1
0
1
0
0
1
1
1
0
*
*
0
1
1
0
1
1
1
1
0
1
1
0
1
1
0
0
Reading address
Sets instruction register address
0
1
0
1
*
*
*
*
Read Data
Read out instruction register data
Initial COM line
[6H]
Data bus length
[9H]
Frequency control
[DH]
Discharge ON/OFF
[EH]
RE register
[FH]
Instruction register address
[CH]
Instruction register read
Note 1)
Note 2)
Note 3)
0/1 0/1 0/1
1
0
0
0/1 0/1 0/1
PC53/ PC52/ PC51/ PC50/
PC133 PC132 PC131 PC130
Sets palette values to gradation
palette C5(PS=0)/C13(PS=1)
PC54/
PC134
Sets palette values to gradation
palette C5(PS=0)/C13(PS=1)
PC63/P PC62/ PC61/ PC60/
C143 PC142 PC141 PC140
Sets palette values to gradation
palette C6(PS=0)/C14(PS=1)
PC64/
PC154
Sets palette values to gradation
palette C6(PS=0)/C14(PS=1)
PC73/ PC72/ PC71/ PC70/
PC153 PC152 PC151 PC150
Sets palette values to gradation
palette C7(PS=0)/C15(PS=1)
*
PC74/
PC154
Sets palette values to gradation
palette C7(PS=0)/C15(PS=1)
SC1
SC0
*
*
*
*
PWM C256
*
*
DSE SON
*
*
Sets scan-starting common driver
SON : Display clock ON/OFF
DSE : Duty-1 ON/OFF
PWM : Variable/Fixed gradation mode
C256 : 256-Color Mode ON/OFF
ABS : ABS mode ON/OFF
ABS CKS
WLS CKS : Internal/external oscilation
WLS : Display data Length
TST0 RE2
DIS2 DIS
RE1
Discharge the electric charge in
capacitors on V1 to V4 and VLCD
RE0 RE flag
*
: Don’t care.
[ NH ] : Address of Instruction register
The dual instructions including upper and lower bytes is enabled after either upper or lower
bytes are set into the register. The only “EVR control” instruction is enabled after both of the
upper and lower bytes are set.
Note 4)
CKS=0: Internal oscillation mode (default)
CKS=1: External oscillation mode
- 52 -
NJU6815
Instruction Table (6)
Code (80 series MPU I/F)
Instructions
Code
CSb RS RDb WRb RE2 RE1 RE0 D7
Window end
column address
(Lower) [0H]
Window end
column address
(Upper) [1H]
D6
D5
D4
D3
D2
D1
D0
Functions
0
1
1
0
1
0
1
0
0
0
0
EX3
EX2
EX1
EX0
Sets column address for end point
0
1
1
0
1
0
1
0
0
0
1
EX7
EX6
EX5
EX4
Sets column address for end point
Window end row address
(Lower) [2H]
0
1
1
0
1
0
1
0
0
1
0
EY3
EY2
EY1
EY0
Sets row address for end point
Window end row address
(Upper) [3H]
0
1
1
0
1
0
1
0
0
1
1
*
EY6
EY5
EY4
Sets row address for end point
Initial reverse line
(Lower) [4H]
0
1
1
0
1
0
1
0
1
0
0
LS3
LS2
LS1
LS0
Sets address for reverse line
Initial reverse line
(Upper) [5H]
0
1
1
0
1
0
1
0
1
0
1
*
LS6
LS5
LS4
Sets address for reverse line
Last reverse line
(Lower) [6H]
0
1
1
0
1
0
1
0
1
1
0
LE3
LE2
LE1
LE0
Sets address for reverse line
Last reverse line
(Upper) [7H]
0
1
1
0
1
0
1
0
1
1
1
*
LE6
LE5
LE4
Sets address for reverse line
0
1
1
0
1
0
1
1
0
0
0
*
*
BT
LREV
0
1
1
0
1
0
1
1
0
0
1
*
*
*
PS
0
1
1
0
1
0
1
1
0
1
0
PWM PWM PWM PWM
S
A
B
C
0
1
1
0
1
1
1
1
TST0 RE2
Reverse line display
ON/OFF
[8H]
Gradation palette setting
control
[9H]
PWM control
[AH]
RE register
[FH]
Note 1)
Note 2)
Note 3)
0/1 0/1 0/1
RE1
BT : Blink type setting
LREV : Reverse line display ON/OFF
PS : gradation setting
Sets PWM mode
RE0 RE flag
*
: Don’t care.
[ NH ] : Address of Instruction register
The dual instructions including upper and lower bytes is enabled after either upper or lower
bytes are set into the register. The only “EVR control” instruction is enabled after both of the
upper and lower bytes are set.
- 53 -
NJU6815
(32) Instruction descriptions
This chapter provides detail descriptions and instruction registers. Nonexistent instruction codes must not be
set into the LSI.
(32-1) Display data write
The “Display data write” instruction is used to write 8-bit display data into the DDRAM.
CSb
RS
0
0
RDb WRb
1
0
RE2
RE1
RE0
0/1
0/1
0/1
D7
D6
D5
D4
D3
D2
D1
D0
Display data
(32-2) Display data read
The “Display data read” instruction is used to read out 8-bit display data from the DDRAM, where the
column address and row address must be specified beforehand by the “column address” and “row
address” instructions. The dummy read is required just after the “column address” and “row address”
instructions.
CSb
RS
0
0
RDb WRb
0
1
RE2
RE1
RE0
0/1
0/1
0/1
D7
D6
D5
D4
D3
D2
D1
D0
Display data
(32-3) Column address
The “column address” instruction is used to specify the column address for the display data’s reading
and writing operations. It requires dual bytes for lower 4-bit and upper 4-bit data. The instruction for the
lower 4-bit data must be executed first, next the instruction for the upper 4-bit.
CSb
RS
0
1
CSb
RS
0
1
RDb WRb
1
0
RDb WRb
1
0
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
0
0
0
0
0
0
0
AX3
AX2
AX1
AX0
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
0
0
0
0
0
0
1
AX7
AX6
AX5
AX4
(32-4) Row address
The “row address” instruction is used to specify the row address for the display data read and write
operations. It requires dual bytes for lower 4-bit and upper 3-bit data. The instruction for the lower 4-bit
data must be executed first, next the instruction for upper 3-bit. The row address is specified in between
00H and 7FH. The setting for nonexistent row address between 80H and FFH is prohibited.
CSb
RS
0
1
CSb
RS
0
1
- 54 -
RDb WRb
1
0
RDb WRb
1
0
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
0
0
0
0
0
1
0
AY3
AY2
AY1
AY0
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
0
0
0
0
0
1
1
*
AY6
AY5
AY4
NJU6815
(32-5) Initial display line
The “Initial display line” instruction is used to specify the line address corresponding to the initial COM
line. The initial COM line specified by the “Initial COM line” instruction and indicates the common driver
that starts scanning data.
CSb
RS
0
1
CSb
RS
0
1
RDb WRb
1
0
RDb WRb
1
0
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
0
0
0
0
1
0
0
LA3
LA2
LA1
LA0
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
0
0
0
0
1
0
1
*
LA6
LA5
LA4
LA6
LA5
LA4
LA3
LA2
LA1
LA0
Line address
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
:
:
1
1
1
:
:
1
1
1
127
(32-6) N-line inversion
The “N-line inversion” instruction is used to control the alternate rates of the liquid crystal direction. It is
programmed to select the N value between 2 and 128, and the FR signal toggles once every N lines by
setting “1” into the “NLIN” register of the “Display control (2)” instruction. When the N-line inversion is
disabled by setting “0” into the “NLIN” register, the FR signal toggles by the frame.
CSb
RS
0
1
CSb
RS
0
1
RDb WRb
1
0
RDb WRb
1
0
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
0
0
0
0
1
1
0
N3
N2
N1
N0
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
0
0
0
0
1
1
1
*
N6
N5
N4
N6
N5
N4
N3
N2
N1
N0
N value
0
0
0
0
0
0
0
Inhibited
0
0
0
0
0
0
1
2
0
:
:
0
0
1
:
:
0
0
0
128
- 55 -
NJU6815
! N-line Inversion Timing (1/129 duty cycle ratio)
N-line inversion OFF
1st line
2nd line
3rd line
128th line
1st line
129th line
CL
FLM
FR
N-line inversion ON
N-line control
1st line
2nd line
3rd line
N line
1st line
2nd line
CL
FR
(32-7) Display control (1)
The “Display control (1)” instruction is used to control display conditions by setting the “Display ON/OFF”,
“All pixels ON/OFF”, Display mode” and “Common direction” registers.
CSb
RS
0
1
RDb WRb
1
0
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
0
0
0
1
0
0
0
SHIFT
MON
D1
D0
ALLON ON/OFF
! ON/OFF register
ON/OFF=0
ON/OFF=1
: Display OFF (All COM/SEG output Vss level.)
: Display ON
! All ON register
The “All pixels ON/OFF” register is used to turn on all pixels without changing display data of the
DDRAM. The setting for the “All pixels ON/OFF” register has a priority over the “Reverse display
ON/OFF” register.
ALLON=0
ALLON=1
: Normal
: All pixels turn on.
! MON register
MON=0
MON=1
: Gradation mode
: B&W mode
! SHIFT register
SHIFT=0
SHIFT=1
- 56 -
: COM0 → COM127
: COM127 → COM0
NJU6815
(32-8) Display control (2)
The “Display control (2)” instruction is used to control display conditions by setting the “SWAP mode
ON/OFF”, “N-line inversion ON/OFF” and “Reverse display ON/OFF” registers.
CSb
RS
0
1
RDb WRb
1
0
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
0
0
0
1
0
0
1
REV
NLIN
SWAP
*
! SWAP register
The “SWAP” register is used to reverse the arrangement of the display data in the DDRAM.
SWAP=0
SWAP=1
: SWAP mode OFF
: SWAP mode ON
(Normal)
SWAP=”0”
SWAP=”1”
Write data
D7 D6 D5 D4 D3 D2 D1 D0
D7 D6 D5 D4 D3 D2 D1 D0
RAM data
D7 d6 d5 d4 d3 d2 d1 d0
d0 d1 d2 d3 d4 d5 d6 d7
Read data
D 7 D6 D5 D4 D3 D2 D1 D0
D7 D6 D5 D4 D3 D2 D1 D0
! NLIN register
The “NLIN” is used to enable or disable the N-line inversion.
NLIN=0
NLIN=1
: N-line inversion OFF
: N-line inversion ON
(The FR signal toggles by the flame.)
(The FR signal toggles once every N frames.)
! REV register
The “REV” register is used to enable or disable the reverse display mode that reverses the polarity
of display data without changing display data of the DDRAM.
REV=0
REV=1
: Reverse display mode OFF
: Reverse display mode ON
REV
Display
0
Normal
1
Reverse
DDRAM data → Display data
0
0
1
1
0
1
1
0
- 57 -
NJU6815
(32-9) Increment control
The “Increment control” instruction is used for the increment mode. In using the auto-increment mode,
DDRAM address automatically increments (+1) whenever the DDRAM is accessed by the “Display data
write” or “Display data read” instruction. Therefore, once “Display data write” or “Display data read”
instruction is established, it is possible to continuously access to the DDRAM without the “column address”
and “row address” instructions. The settings for the “AIM”, “HV”, “XD” and “YD” registers are listed in the
following tables.
CSb
RS
0
1
RDb WRb
1
0
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
0
0
0
1
0
1
0
AIM
HV
XD
YD
! AIM, HV, XD and YD registers
AIM
0
1
Increment mode
Auto-increment for both of the display data read and write operations
Auto-increment for the display write operation (Read modify write)
Note
1
2
Note 1) It is effective for usual operations accessing successive addresses.
Note 2) It is effective for the read-modify-write operation.
HV
0
0
0
0
1
1
1
1
XD
0
0
1
1
0
0
1
1
YD
0
1
0
1
0
1
0
1
Increment / Decrement mode / Scanning Direction
Column increment / Row increment / Horizontal direction
Column increment / Row decrement / Horizontal direction
Column decrement / Row increment / Horizontal direction
Column decrement / Row decrement / Horizontal direction
Column increment / Row increment / Vertical direction
Column increment / Row decrement / Vertical direction
Column decrement / Row increment / Vertical direction
Column decrement / Row decrement / Vertical direction
For the window area designation, the address directions of RAM (HV, XD, YD) must be set first, and
Column address and Row of Start point must be set second, Column address and Row of Stop point must
be set third, then RAM should be accessed. Low address must be set first and High address must be set
second in all of addresses. The directions of HV, XD, YD should be check to keep the area in RAM.
- 58 -
NJU6815
(32-10) Power control
CSb
RS
0
1
RDb WRb RE2
1
0
0
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
0
0
1
0
1
1
AMPON
HALT
DCON
ACL
! ACL register
The “ACL” register is used to initialize the internal power supply circuits.
ACL=0
ACL=1
: Initialization OFF (Normal)
: Initialization ON
When the data of the “ACL register” is read out by the “Instruction register read” instruction, the
read-out data is “1” during the initialization and “0” after the initialization. This initialization is
performed by using the signal produced by 2 clocks on the OSC1. For this reason, the wait time for 2
clocks of the OSC1 is necessary until next instruction.
! DCON register
The “DCON” register is used to enable or disable the voltage booster.
DCON=0
DCON=1
: Voltage booster OFF
: Voltage booster ON
! HALT register
The “HALT” register is used to enable or disable the power save mode. It is possible to reduce
operating current down to stand-by level. The internal status in the power save mode is listed below.
HALT=0
HALT=1
: Power save OFF (Normal)
: Power save ON
Internal status in the power save mode
• The oscillation circuits and internal power supply circuits are halted.
• All segment and common drivers output VSS level.
• The clock input into the OSC1 is inhibited.
• The display data in the DDRAM is maintained.
• The operational modes before the power save mode are maintained.
• The V1 to V4 and VLCD are in the high impedance.
As a power save ON sequence, the “Display OFF” must be executed first, next the “Power save
ON” instruction, and then all common and segment drivers output the VSS level. And as power save
OFF sequence, the “Power save OFF” instruction is executed first, next the “Display ON” instruction.
If the “Power save OFF” instruction is executed in the display ON status, unexpected pixels may
instantly turn on.
! AMPON register
The “AMPON” register is used to enable or disable the voltage followers, voltage regulator and EVR.
AMPON=0
AMPON=1
: The voltage followers, voltage regulator and the EVR OFF
: The voltage followers, voltage regulator and the EVR ON
- 59 -
NJU6815
(32-11) Duty cycle ratio
The “Duty cycle ratio” instruction is used to select LCD duty cycle ratio for the partial display function.
The partial display function specifies some parts of display area on a LCD panel in the condition of lower
duty cycle ratio, lower LCD bias ratio, lower boost level and lower LCD driving voltage. Therefore, it is
possible to optimize the LSI’s conditions with extremely low power consumption.
CSb
RS
0
1
RDb WRb RE2
1
0
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
0
0
1
1
0
0
DS3
DS2
DS1
DS0
0
DS3
DS2
DS1
DS0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Row way
displays
128 commons
120 commons
112 commons
104 commons
96 commons
88 commons
80 commons
72 commons
64 commons
56 commons
48 commons
40 commons
32 commons
24 commons
16 commons
Duty cycle ratio
DSE=0
DSE=1
1/129
1/128
1/121
1/120
1/113
1/112
1/105
1/104
1/97
1/96
1/89
1/88
1/81
1/80
1/73
1/72
1/65
1/64
1/56
1/57
1/48
1/49
1/41
1/40
1/33
1/32
1/25
1/24
1/17
1/16
Inhibited
The duty cycle ratio is controlled by the “DS3 to DS0” registers of the “Duty cycle ratio” instruction and the “DSE”
register of the “Display Clock / Duty-1” instruction.
DSE=”0”
DSE=”1”
: The number of commons + 1
(Duty cycle ratio in the default setting)
: The number of commons (Duty-1)
When the “DSE” is “0”, all common drivers output non-selective levels in period of last common.
And the segment drivers output the same data for the last line as the data for previous line: For
th
th
instance they output the same data for the 128 and 129 lines when the duty cycle ratio is set to
1/129. For the setting of the “DSE” register, see (32-17) “Display clock / Duty-1”.
(32-12) Boost level
The “Boost level” is used to select the multiple of the voltage booster for the partial display function.
CSb
RS
0
1
RDb WRb
1
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
0
0
0
1
1
0
1
*
VU2
VU1
VU0
0
VU2
0
0
0
0
1
1
1
1
- 60 -
VU1
0
0
1
1
0
0
1
1
VU0
0
1
0
1
0
1
0
1
Boost level
1-time (No boost)
2-time
3-time
4-time
5-time
6-time
Inhibited
Inhibited
NJU6815
(32-13) LCD bias ratio
The “LCD bias ratio” is used to select the LCD bias ratio for the partial display function.
CSb
RS
0
1
RDb WRb
1
0
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
0
0
0
1
1
1
0
*
B2
B1
B0
B1
0
0
1
1
0
0
1
1
B2
0
0
0
0
1
1
1
1
B0
0
1
0
1
0
1
0
1
LCD bias ratio
1/9
1/8
1/7
1/6
1/5
1/10
1/11
1/12
(32-14) RE flag
The “RE flag” registers are used to determine the contents for the RE registers (RE2, RE1 and RE0) and
it is possible to access to the instruction registers.
The data in the “TST0” register must be “0”, and it is used maker tests only.
CSb
RS
0
1
RDb WRb
1
0
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
0/1
0/1
0/1
1
1
1
1
TST0
RE2
RE1
RE0
- 61 -
NJU6815
(32-15) Gradation palette A, B and C
CSb
RS
0
1
CSb
RS
0
1
CSb
RS
0
1
CSb
RS
0
1
CSb
RS
0
1
CSb
RS
0
1
CSb
RS
0
1
CSb
RS
0
1
CSb
RS
0
1
- 62 -
RDb WRb
1
0
RDb WRb
1
0
RDb WRb
1
0
RDb WRb
1
0
RDb WRb
1
0
RDb WRb
1
0
RDb WRb
1
0
RDb WRb
1
0
RDb WRb
1
0
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
0
0
1
0
0
0
0
PA03/
PA83
PA02/
PA82
PA01/
PA81
PA00/
PA80
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
0
0
1
0
0
0
1
*
*
*
PA04/
PA84
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
0
0
1
0
0
1
0
PA13/
PA93
PA12/
PA92
PA11/
PA91
PA10/
PA90
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
0
0
1
0
0
1
1
*
*
*
PA14/
PA94
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
0
0
1
0
1
0
0
PA23/
PA103
PA22/
PA102
PA21/
PA101
PA20/
PA100
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
0
0
1
0
1
0
1
*
*
*
PA24/
PA104
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
0
0
1
0
1
1
0
PA33/
PA113
PA32/
PA112
PA31/
PA111
PA30/
PA110
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
0
0
1
0
1
1
1
*
*
*
PA34/
PA114
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
0
0
1
1
0
0
0
PA43/
PA123
PA42/
PA122
PA41/
PA121
PA40/
PA120
NJU6815
CSb
RS
0
1
CSb
RS
0
1
CSb
RS
0
1
CSb
RS
0
1
CSb
RS
0
1
CSb
RS
0
1
CSb
RS
0
1
CSb
RS
0
1
CSb
RS
0
1
RDb WRb
1
0
RDb WRb
1
0
RDb WRb
1
0
RDb WRb
1
0
RDb WRb
1
0
RDb WRb
1
0
RDb WRb
1
0
RDb WRb
1
0
RDb WRb
1
0
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
0
0
1
1
0
0
1
*
*
*
PA44/
PA124
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
0
0
1
1
0
1
0
PA53/
PA133
PA52/
PA132
PA51/
PA131
PA50/
PA130
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
0
0
1
1
0
1
1
*
*
*
PA54/
PA134
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
0
0
1
1
1
0
0
PA63/
PA143
PA62/
PA142
PA61/
PA141
PA60/
PA140
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
0
0
1
1
1
0
1
*
*
*
PA64/
PA144
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
0
1
0
0
0
0
0
PA73/
PA153
PA72/
PA152
PA71/
PA151
PA70/
PA150
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
0
1
0
0
0
0
1
*
*
*
PA74/
PA154
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
0
1
0
0
0
1
0
PB03/
PB83
PB02/
PB82
PB01/
PB81
PB00/
PB80
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
0
1
0
0
0
1
1
*
*
*
PB04/
PB84
- 63 -
NJU6815
CSb
RS
0
1
CSb
RS
0
1
CSb
RS
0
1
CSb
RS
0
1
CSb
RS
0
1
CSb
RS
0
1
CSb
RS
0
1
CSb
RS
0
1
CSb
RS
0
1
- 64 -
RDb WRb
1
0
RDb WRb
1
0
RDb WRb
1
0
RDb WRb
1
0
RDb WRb
1
0
RDb WRb
1
0
RDb WRb
1
0
RDb WRb
1
0
RDb WRb
1
0
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
0
1
0
0
1
0
0
PB13/
PB93
PB12/
PB92
PB11/
PB91
PB10/
PB90
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
0
1
0
0
1
0
1
*
*
*
PB14/
PB94
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
0
1
0
0
1
1
0
PB23/
PB103
PB22/
PB102
PB21/
PB101
PB20/
PB100
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
0
1
0
0
1
1
1
*
*
*
PB24/
PB104
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
0
1
0
1
0
0
0
PB33/
PB113
PB32/
PB112
PB31/
PB111
PB30/
PB110
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
0
1
0
1
0
0
1
*
*
*
PB34/
PB114
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
0
1
0
1
0
1
0
PB43/
PB123
PB42/
PB122
PB41/
PB121
PB40/
PB120
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
0
1
0
1
0
1
1
*
*
*
PB44/
PB124
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
0
1
0
1
1
0
0
PB53/
PB133
PB52/
PB132
PB51/
PB131
PB50/
PB130
NJU6815
CSb
RS
0
1
CSb
RS
0
1
CSb
RS
0
1
CSb
RS
0
1
CSb
RS
0
1
CSb
RS
0
1
CSb
RS
0
1
CSb
RS
0
1
CSb
RS
0
1
RDb WRb
1
0
RDb WRb
1
0
RDb WRb
1
0
RDb WRb
1
0
RDb WRb
1
0
RDb WRb
1
0
RDb WRb
1
0
RDb WRb
1
0
RDb WRb
1
0
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
0
1
0
1
1
0
1
*
*
*
PB54/
PB134
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
0
1
1
0
0
0
0
PB63/
PB143
PB62/
PB142
PB61/
PB141
PB60/
PB140
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
0
1
1
0
0
0
1
*
*
*
PB64/
PB144
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
0
1
1
0
0
1
0
PB73/
PB153
PB72/
PB152
PB71/
PB151
PB70/
PB150
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
0
1
1
0
0
1
1
*
*
*
PB74/
PB154
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
0
1
1
0
1
0
0
PC03/
PC83
PC02/
PC82
PC01/
PC81
PC00/
PC80
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
0
1
1
0
1
0
1
*
*
*
PC04/
PC84
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
0
1
1
0
1
1
0
PC13/
PC93
PC12/
PC92
PC11/
PC91
PC10/
PC90
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
0
1
1
0
1
1
1
*
*
*
PC14/
PC94
- 65 -
NJU6815
CSb
RS
0
1
CSb
RS
0
1
CSb
RS
0
1
CSb
RS
0
1
CSb
RS
0
1
CSb
RS
0
1
CSb
RS
0
1
CSb
RS
0
1
CSb
RS
0
1
- 66 -
RDb WRb
1
0
RDb WRb
1
0
RDb WRb
1
0
RDb WRb
1
0
RDb WRb
1
0
RDb WRb
1
0
RDb WRb
1
0
RDb WRb
1
0
RDb WRb
1
0
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
0
1
1
1
0
0
0
PC23/
PC103
PC22/
PC102
PC21/
PC101
PC20/
PC100
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
0
1
1
1
0
0
1
*
*
*
PC24/
PC104
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
0
1
1
1
0
1
0
PC33/
PC113
PC32/
PC112
PC31/
PC111
PC30/
PC110
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
0
1
1
1
0
1
1
*
*
*
PC34/
PC114
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
0
1
1
1
1
0
0
PC43/
PC123
PC42/
PC122
PC41/
PC121
PC40/
PC120
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
0
1
1
1
1
0
1
*
*
*
PC44/
PC124
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
1
0
0
0
0
0
0
PC53/
PC133
PC52/
PC132
PC51/
PC131
PC50/
PC130
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
1
0
0
0
0
0
1
*
*
*
PC54/
PC134
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
1
0
0
0
0
1
0
PC63/
PC143
PC62/
PC142
PC61/
PC141
PC60/
PC140
NJU6815
CSb
RS
0
1
CSb
RS
0
1
CSb
RS
0
1
RDb WRb
1
0
RDb WRb
1
0
RDb WRb
1
0
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
1
0
0
0
0
1
1
*
*
*
PC64/
PC144
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
1
0
0
0
1
0
0
PC73/
PC153
PC72/
PC152
PC71/
PC151
PC70/
PC150
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
1
0
0
0
1
0
1
*
*
*
PC74/
PC154
Gradation palette Table (Variable gradation mode, PWM=”0” and MON=”0”)
(Palette Aj, Palette Bj, Palette Cj, (j=0 to15))
Palette Value
Gradation
Level
Note
0 0 0 0 0
0/31
Gradation Palette 0
Initial Value
0 0 0 0 1
Gradation
Level
Palette Value
1
0 0 0
0
16/31
1/31
1
0 0 0
1
17/31
0 0 0 1 0
2/31
1
0 0 1
0
18/31
0 0 0 1 1
3/31
1
0 0 1
1
19/31
0 0 1 0 0
4/31
1
0 1 0
0
20/31
0 0 1 0 1
5/31
1
0 1 0
1
21/31
0 0 1 1 0
6/31
1
0 1 1
0
22/31
0 0 1 1 1
7/31
1
0 1 1
1
23/31
0 1 0 0 0
8/31
1
1 0 0
0
24/31
0 1 0 0 1
9/31
1
1 0 0
1
25/31
0 1 0 1 0
10/31
1
1 0 1
0
26/31
0 1 0 1 1
11/31
1
1 0 1
1
27/31
0 1 1 0 0
12/31
1
1 1 0
0
28/31
0 1 1 0 1
13/31
1
1 1 0
1
29/31
0 1 1 1 0
14/31
1
1 1 1
0
30/31
0 1 1 1 1
15/31
1
1 1 1
1
31/31
Gradation Palette 1
Initial Value
Gradation Palette2
Initial Value
Gradation Palette 3
Initial Value
Gradation Palette 4
Initial Value
Gradation Palette 5
Initial Value
Gradation Palette 6
Initial Value
Gradation Palette 7
Initial Value
Note
Gradation Palette 8
Initial Value
Gradation Palette 9
Initial Value
Gradation Palette 10
Initial Value
Gradation Palette 11
Initial Value
Gradation Palette 12
Initial Value
Gradation Palette 13
Initial Value
Gradation Palette 14
Initial Value
Gradation Palette 15
Initial Value
- 67 -
NJU6815
(32-16) Initial COM line
The “Initial COM line” instruction is used to specify the common driver that starts scanning the display
data. The line address, corresponding to the initial COM line, is specified by the “Initial display line”
instruction.
CSb
RS
0
1
1
SC3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
SC2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
0
1
0
0
0
1
1
0
SC3
SC2
SC1
SC0
SC1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
SC0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
RDb WRb
Initial COM line (SHIFT=0)
COM0
COM4
COM8
COM16
COM24
COM32
COM40
COM48
COM56
COM64
COM72
COM80
COM88
COM96
COM104
COM112
SHIFT=0: Positive scan direction
SHIFT=1: Negative scan direction
Initial COM line (SHIFT=1)
COM127
COM123
COM119
COM111
COM103
COM95
COM87
COM79
COM71
COM63
COM55
COM47
COM39
COM31
COM23
COM15
(for instance, COM0 → COM127)
(for instance, COM127 → COM0)
(32-17) Display clock / Duty-1
The “Display clock / Duty-1” instruction is used to enable or disable the display clocks (CL, FLM, FR, and
CLK), and to control ON/OFF of the “Duty-1”. For more detail about the “Duty-1”, see (32-11) “Duty cycle
ratio”.
CSb
RS
0
1
- 68 -
RDb WRb
1
0
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
1
0
0
0
1
1
1
*
*
DSE
SON
SON=0:
SON=1:
CL, FLM, FR, and CLK outputs level “0”.
CL, FLM, FR, and CLK outputs are active.
DSE=0:
DSE=1:
Duty -1 OFF
Duty -1 ON
NJU6815
(32-18) Gradation mode control
The “Gradation mode control” is used to select display mode as follows.
CSb
RS
0
1
RDb WRb
1
0
RE2
RE1
RE0
D7
D6
D5
D4
1
0
0
1
0
0
0
D3
D2
PWM C256
D1
D0
*
*
! PWM register
PWM=0:
PWM=1:
Variable gradation mode
(Variable 16-gradation levels out of 32-gradation level of the gradation palette)
Fixed gradation mode
(Fixed 8-gradation levels)
! C256 register
C256=0
C256=1
256-color mode OFF (4,096-color in the default setting)
256-color mode ON
- 69 -
NJU6815
(32-19) Data bus length
The “Data bus length” instruction is used to select the 8- or 16- bit data bus length and determine the
internal or external oscillation. In the 16-bit data bus mode, instruction data must be 16-bit (D15 to D0) as
well as display data. However, for the access to the instruction registers, the lower 8-bit data (D7 to D0) of
the 16-bit data is valid. For the access to the DDRAM, all of the 16-bit data (D15 to D0) is valid.
CSb
RS
0
1
RDb WRb
1
0
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
1
0
0
1
0
0
1
*
ABS
D1
D0
CKS WLS
! ABS register
ABS=0:
ABS=1:
ABS mode OFF (normal)
ABS mode ON
! WLS register
WLS=0:
WLS =1:
8-bit data bus length
16-bit data bus length
! CKS register
CKS =0:
CKS =1:
- 70 -
Internal oscillation
(The OSC1 terminal must be fixed “1” or “0”.)
External oscillation
(By the external clock into the OSC1 or external resister between the OSC1 and
OSC2. OSC2 should be open when clock is inputted from OSC1.)
NJU6815
(32-20) EVR control
The “EVR control” instruction is used to fine-tune the LCD driving voltage (VLCD) so that it is possible to
optimize the contrast level for a LCD panel.
This instruction must be programmed by upper 3-bit data first, next lower 4-bit data. And it becomes
enabled when the lower 4-bit data is programmed, so that it can prevent unexpected high voltage for the
VLCD from being generated.
CSb
RS
0
1
CSb
RS
0
1
RDb WRb
1
0
RDb WRb
1
0
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
1
0
0
1
0
1
0
DV3
DV2
DV1
DV0
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
1
0
0
1
0
1
1
*
DV6
DV5
DV4
DV2
0
0
DV1
0
0
DV0
0
1
1
1
1
DV6
0
0
DV5
0
0
DV4
0
0
1
1
1
DV3
0
0
:
:
1
VLCD
Low
:
:
:
High
The formula of the VLCD is shown below.
VLCD [V] = 0.5 x VREG + M (VREG – 0.5 x VREG) / 127
VBA = VEE x 0.9
VREG = VREF x N
VBA
VREF
VREG
N
M
: Output voltage of the reference voltage generator
: Input voltage of the voltage regulator
: Output voltage of the voltage regulator
: Register value for the voltage booster
: Register value for the EVR
- 71 -
NJU6815
(32-21) Frequency control
The “Frequency control” instruction is used to control the frame frequency for a LCD panel.
CSb
RS
0
1
RDb WRb
1
0
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
1
0
0
1
1
0
1
*
Rf2
Rf1
Rf0
! Rfx register (x=0, 1, 2)
The “Rfx” register is used to determine the feed back resister value for the internal oscillator and it
is possible to adjust the frame frequency for the LCD modules.
Rf 2
0
0
0
0
1
1
1
1
Rf 1
0
0
1
1
0
0
1
1
Rf 0
0
1
0
1
0
1
0
1
Feedback resistor value
Reference value
0.8 x reference value
0.9 x reference value
1.1 x reference value
1.2 x reference value
0.7 x reference value
1.3 x reference value
Inhibited
(32-22) Discharge ON/OFF
Discharge circuit is used to discharge the electric charge of the capacitors on the V1 to V4 and the VLCD
terminals. The “Discharge ON/OFF” instruction is usually required just after the internal power supply is
turned off by setting “0” into the “DCON” and “AMPON” registers, or just after the external power supply is
turned off. During the discharge operation, the internal or external power supply must not be turned on.
CSb
RS
0
1
RDb WRb
1
0
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
1
0
0
1
1
1
0
*
*
DIS2
DIS
DIS=0:
DIS=1:
Discharge OFF
Discharge ON
(Capacitors on the VLCD, V1, V2, V3 and V4)
(Capacitors on the VLCD, V1, V2, V3 and V4)
DIS2=0:
DIS2=1:
Discharge OFF
Discharge ON
(Resistance between VOUT and VEE)
(Resistance between VOUT and VEE)
Note ) VOUT and VEE are internally connected with the resistor (100kΩ typical) in the power-ON.
- 72 -
NJU6815
(32-23) Instruction register address
The “Instruction register address” is used to specify the instruction register address, so that it is possible
to read out the contents of the instruction registers in combination with the “Instruction register read”
instruction.
CSb
RS
0
1
RDb WRb
1
0
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
1
0
0
1
1
0
0
RA3
RA2
RA1
RA0
(32-24) Instruction register read
The “Instruction register read” instruction is used to read out the contents of the instruction register in
combination with the “Instruction register address” instruction.
CSb
RS
0
1
RDb WRb
0
1
RE2
RE1
RE0
D7
D6
D5
D4
0/1
0/1
0/1
*
*
*
*
D3
D2
D1
D0
Internal register data read
(32-25) Window end column address
The “Window end column address” is used to specify the column address for the window end point. The
lower 4-bit data is required to be programmed first and then the upper 4-bit data can be programmed.
CSb
RS
0
1
CSb
RS
0
1
RDb WRb
1
0
RDb WRb
1
0
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
1
0
1
0
0
0
0
EX3
EX2
EX1
EX0
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
1
0
1
0
0
0
1
EX7
EX6
EX5
EX4
(32-26) Window end row address set
The “Window end row address” is used to specify the row address for the window end point. The lower
4-bit data is required to be programmed first and then the upper 4-bit data can be programmed.
CSb
RS
0
1
CSb
RS
0
1
RDb WRb
1
0
RDb WRb
1
0
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
1
0
1
0
0
1
0
EY3
EY2
EY1
EY0
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
1
0
1
0
0
1
1
*
EY6
EY5
EY4
- 73 -
NJU6815
(32-27) Initial reverse line
The “Initial reverse line” instruction is used to specify the initial reverse line address for the reverse line
display. Lower 4-bit data must be programmed first, next upper 3-bit data. It is programmed in between
00H and 7FH and the line address beyond 7FH is inhibited. The address relation: LSi < LEi (i=7 to 0) must
be maintained in the reverse line display.
CSb
RS
0
1
CSb
RS
0
1
RDb WRb
1
0
RDb WRb
1
0
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
1
0
1
0
1
0
0
LS3
LS2
LS1
LS0
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
1
0
1
0
1
0
1
*
LS6
LS5
LS4
(32-28) Last reverse line
The “Last reverse line” instruction is used to specify the last reverse line address for the reverse line
display. Lower 4-bit must be programmed first, next upper 3-bit data. It is programmed in between 00H and
7FH and the line address beyond 7FH is inhibited. The address relation: LSi < LEi (i=7 to 0) must be
maintained in the reverse line display.
CSb
RS
0
1
CSb
RS
0
1
RDb WRb
1
0
RDb WRb
1
0
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
1
0
1
0
1
1
0
LE3
LE2
LE1
LE0
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
1
0
1
0
1
1
1
*
LE6
LE5
LE4
(32-29) Reverse line display ON/OFF
The “Reverse line display ON/OFF” is used to enable or disable the reverse line display for the blink
operation and determine the reverse line display mode.
CSb
RS
0
1
RDb WRb
1
0
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
1
0
1
1
0
0
0
*
*
BT
LREV
! LREV register
The “LREV” register is used to enable or disable the reverse line display.
LREV =0:
LREV =1:
- 74 -
Reverse line display OFF (Normal)
Reverse line display ON
NJU6815
! BT register
The “BT” register is used to determine the reverse line display mode in the reverse line display ON
(LREV=1) status.
BT =0:
BT =1:
Normal reverse line display
Blink once every 32 frames
Display examples in the LREV=”1” and BT=”1”
!"""!
"!!!"
"!!!!
!"""!
!!!!"
"!!!"
!"""!
!!!!!
"!!!"
!"""!
!""""
"!!!"
""""!
!"""!
"!!!"
"""""
Blink once every 32 frames
NJRC
LCD DRIVER
Low Power and
Low Voltage
Blink once every 32 frames
NJRC
LCD DRIVER
Low Power and
←Initial reverse line address
←Last reverse line address
Low Voltage
- 75 -
NJU6815
(32-30) Gradation Palette setting control
CSb
RS
0
1
RDb WRb
1
0
RE2
RE1
RE0
D7
D6
D5
D4
D3
D2
D1
D0
1
0
1
1
0
0
1
*
*
*
PS
! PS register
PS=0: Lower 8 Gradation setting
PS=1: Upper 8 Gradation setting
(32-31) PWM control
The “PWM control” is used to determine the PWM type for the segment waveforms, where the type can
be specified for each of the SEGAi, SEGBi and SEGCi (i=0-127) drivers.
CSb
RS
0
1
RDb WRb
1
0
RE2
RE1
RE0
D7
D6
D5
D4
1
0
1
1
0
1
0
D3
D2
D1
PWMS PWMA PWMB PWMC
! PWMS register
PWMS=0: Type 1
PWMS=1: Type 2
! PWMA, B and C registers
The “PWMA, PWMB and PWMC” registers are used to select the type 1-O or type 1-E.
PWMZ=0 (Z=A, B and C): Type 1-O
PWMZ=1 (Z=A, B and C): Type 1-E
PWM type1 (PWMS=”0”)
“H”
CL
Odd line
Even line
“L”
VLCD
Type-O
→
←
V2
SEG
VLCD
Type-E
→
V2
PWM type2 (PWMS=”1”)
CL
“H”
“L”
SEG
VLCD
→
V2
- 76 -
→
←
D0
NJU6815
(33) The relationship between Common drivers and row addresses
Row address assignment of common drivers is programmed by the “ SHIFT ” register of the “ Display
control (1) ” , “ Duty cycle ratio ”, “ Internal display line ” and “ Initial COM line ” instructions.
! When initial display line is “0”
If the “ SHIFT “ is “ 0 “, the scan direction is normal. When the “ LA0 to LA6 ” registers of the
“ Initial display line “instruction is “ 0 “, the “ MY “ corresponding to the initial COM line is “ 0 “ and is
increasing during display.
! When initial display line is not “0”
If the “ SHIFT “ is “ 1 “, the scan direction is inversed. When the “ LA0 to LA6 ” registers of the
“ Initial display line “instruction is not “ 0 “, the “ MY “ corresponding to the initial COM line is this
setting value and is increasing during display.
The following are examples of setting the start-line 0 or 5 at 1/129, 1/128, or 1/17 duty.
- 77 -
NJU6815
(33-1) Initial display line “0”, 1/129 duty cycle (Common forward scan, DSE=”0”)
SC3
SC2
SC1
SC0
0000
0
SHIFT=”0”(Common forward scan), DS3, 2, 1, 0=”0000”, LA6….LA0=”00000000”(Initial display line 0)
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
124
120
112
104
96
88
72
64
56
1100
1101
1110
1111
48
40
32
24
16
127
123
119
111
103
95
87
79
71
63
55
47
39
31
23
15
(129th COM period) *1
127
127
127
127
127
127
127
127
127
127
127
127
127
127
127
127
127
0
127
0
127
0
127
0
127
0
127
0
127
0
127
0
127
0
127
0
127
0
127
0
127
0
127
0
127
0
DS: Duty cycle ratio, SC: Initial COM line, LA: Initial display line
*1 : 129th COM period is not selected.
- 78 -
80
1011
COM0
COM1
COM2
COM3
COM4
COM5
COM6
COM7
COM8
COM9
COM10
COM11
COM12
COM13
COM14
COM15
COM16
COM17
COM18
COM19
COM20
COM21
COM22
COM23
COM24
COM25
COM26
COM27
COM28
COM29
COM30
COM31
COM32
COM33
COM34
COM35
COM36
COM37
COM38
COM39
COM40
COM41
COM42
COM43
COM44
COM45
COM46
COM47
COM48
COM49
COM50
COM51
COM52
COM53
COM54
COM55
COM56
COM57
COM58
COM59
COM60
COM61
COM62
COM63
COM64
COM65
COM66
COM67
COM68
COM69
COM70
COM71
COM72
COM73
COM74
COM75
COM76
COM77
COM78
COM79
COM80
COM81
COM82
COM83
COM84
COM85
COM86
COM87
COM88
COM89
COM90
COM91
COM92
COM93
COM94
COM95
COM96
:
COM103
COM104
:
COM111
COM112
:
COM125
COM126
COM127
NJU6815
(33-2) Initial display line “0”, 1/17 duty cycle (Common forward scan, DSE=”0”)
SC3
SC2
COM0
COM1
COM2
COM3
COM4
COM5
COM6
COM7
COM8
COM9
COM10
COM11
COM12
COM13
COM14
COM15
COM16
COM17
COM18
COM19
COM20
COM21
COM22
COM23
COM24
COM25
COM26
COM27
COM28
COM29
COM30
COM31
COM32
COM33
COM34
COM35
COM36
COM37
COM38
COM39
COM40
COM41
COM42
COM43
COM44
COM45
COM46
COM47
COM48
COM49
COM50
COM51
COM52
COM53
COM54
COM55
COM56
COM57
COM58
COM59
COM60
COM61
COM62
COM63
COM64
COM65
COM66
COM67
COM68
COM69
COM70
COM71
COM72
COM73
COM74
COM75
COM76
COM77
COM78
COM79
COM80
COM81
COM82
COM83
COM84
COM85
COM86
COM87
COM88
:
COM95
COM96
:
COM103
COM104
:
COM111
COM112
:
COM119
:
COM127
SC1
SC0
0000
SHIFT=”0”(Common forward scan), DS3, 2, 1, 0=”1110”, LA6….LA0=”00000000”(Initial display line 0)
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
0
0
0
15
0
15
15
0
15
0
15
0
15
0
15
0
15
0
15
0
15
0
15
0
15
0
15
0
15
0
15
15
(17th COM period) *1
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
DS: Duty cycle ratio, SC: Initial COM line, LA: Initial display line
*1 : 17th COM period is not selected.
- 79 -
NJU6815
(33-3) Initial display line “0”, 1/129 duty cycle (Common backward scan, DSE=”0”)
SC3
SC2
SC1
SC0
0000
SHIFT=”1”(Common backward scan), DS3, 2, 1, 0=”0000”, LA6….LA0=”00000000”(Initial display line 0)
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
123
119
111
103
95
87
71
63
55
1100
1101
1110
1111
47
39
31
23
15
127
0
124
120
112
104
96
88
80
72
64
56
48
40
32
24
16
(129th COM period) *1
127
127
127
127
127
127
127
127
127
127
127
127
127
127
127
127
0
127
0
127
0
127
0
127
0
127
0
127
0
127
0
127
0
127
0
127
0
127
0
127
0
127
0
127
0
127
DS: Duty cycle ratio, SC: Initial COM line, LA: Initial display line
*1 : 129th COM period is not selected.
- 80 -
79
1011
COM0
COM1
COM2
COM3
COM4
COM5
COM6
COM7
:
COM15
COM16
:
COM23
COM24
:
COM31
COM32
:
COM39
COM40
COM41
COM42
COM43
COM44
COM45
COM46
COM47
COM48
COM49
COM50
COM51
COM52
COM53
COM54
COM55
COM56
COM57
COM58
COM59
COM60
COM61
COM62
COM63
COM64
COM65
COM66
COM67
COM68
COM69
COM70
COM71
COM72
COM73
COM74
COM75
COM76
COM77
COM78
COM79
COM80
COM81
COM82
COM83
COM84
COM85
COM86
COM87
COM88
COM89
COM90
COM91
COM92
COM93
COM94
COM95
COM96
COM97
COM98
COM99
COM100
COM101
COM102
COM103
COM104
COM105
COM106
COM107
COM108
COM109
COM110
COM111
COM112
COM113
COM114
COM115
COM116
COM117
COM118
COM119
COM120
COM121
COM122
COM123
COM124
COM125
COM126
COM127
NJU6815
(33-4) Initial display line “5”, 1/129 duty cycle (Common forward scan, DSE=”0”)
SC3
SC2
COM0
COM1
COM2
COM3
COM4
COM5
COM6
COM7
COM8
COM9
COM10
COM11
COM12
COM13
COM14
COM15
COM16
COM17
COM18
COM19
COM20
COM21
COM22
COM23
COM24
COM25
COM26
COM27
COM28
COM29
COM30
COM31
COM32
COM33
COM34
COM35
COM36
COM37
COM38
COM39
COM40
COM41
COM42
COM43
COM44
COM45
COM46
COM47
COM48
COM49
COM50
COM51
COM52
COM53
COM54
COM55
COM56
COM57
COM58
COM59
COM60
COM61
COM62
COM63
COM64
COM65
COM66
COM67
COM68
COM69
COM70
COM71
COM72
COM73
COM74
COM75
:
COM80
COM81
COM82
COM83
:
COM88
COM89
COM90
COM91
:
COM96
COM97
COM98
COM99
:
COM104
COM105
COM106
COM107
:
COM112
:
COM122
COM123
COM124:
COM125
COM126
COM127
th
(129
COM period) *1
SC1
SC0
0000
5
SHIFT=”0”(Common forward scan), DS3, 2, 1, 0=”0000”, LA6….LA0=”00000101”(Initial display line 5)
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1
125
126
127
0
117
109
101
93
85
77
69
61
1011
1100
1101
1110
1111
53
45
37
29
21
5
5
127
0
5
127
0
5
127
0
5
127
0
5
127
0
5
127
0
5
127
0
5
127
0
5
127
0
5
127
0
5
127
0
5
127
0
5
127
0
5
127
0
4
127
0
124
116
108
100
92
84
76
68
60
52
44
38
28
20
127
127
127
127
127
127
127
127
127
127
127
127
127
127
127
127
DS: Duty cycle ratio, SC: Initial COM line, LA: Initial display line
*1 : 129th COM period is not selected.
- 81 -
NJU6815
(33-5) Initial display line “0”, 1/128 duty cycle (Common forward scan, DSE=”1”)
SC3
COM0
COM1
COM2
COM3
COM4
COM5
COM6
COM7
COM8
COM9
COM10
COM11
COM12
COM13
COM14
COM15
COM16
COM17
COM18
COM19
COM20
COM21
COM22
COM23
COM24
COM25
COM26
COM27
COM28
COM29
COM30
COM31
COM32
COM33
COM34
COM35
COM36
COM37
COM38
COM39
COM40
COM41
COM42
COM43
COM44
COM45
COM46
COM47
COM48
COM49
COM50
COM51
COM52
COM53
COM54
COM55
COM56
COM57
COM58
COM59
COM60
COM61
COM62
COM63
COM64
COM65
COM66
COM67
COM68
COM69
COM70
COM71
COM72
COM73
COM74
COM75
COM76
COM77
COM78
COM79
COM80
COM81
COM82
COM83
COM84
COM85
COM86
COM87
COM88
COM89
COM90
COM91
COM92
COM93
COM94
COM95
COM96
:
COM103
COM104
:
COM111
COM112
:
COM125
COM126
COM127
SC2
SC1
SC0
0000
0
SHIFT=”0”(Common forward scan), DS3, 2, 1, 0=”0000”, LA6….LA0=”00000000”(Initial display line 0) DSE=”1”
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
124
120
112
104
96
88
72
64
56
48
1100
1101
1110
1111
40
32
24
16
127
0
127
0
127
0
127
0
127
0
127
0
127
0
127
0
127
0
127
0
127
0
127
0
127
0
127
0
127
0
127
123
119
111
103
95
87
DS: Duty cycle ratio, SC: Initial COM line, LA: Initial display line
- 82 -
80
79
71
63
55
47
39
31
23
15
NJU6815
■ ABSOLUTE MAXIMUM RATINGS
PARAMETER
Supply Voltage (1)
Supply Voltage (2)
Supply Voltage (3)
Supply Voltage (4)
Supply Voltage (5)
Supply Voltage (6)
Input Voltage
Storage Temperature
SYMBOL
VDD
VEE
VOUT
VREG
VLCD
V1, V2, V3, V4
VI
Tstg
CONDITION
VSS=0V
Ta = +25°C
TERMINAL
VDD
VEE
VOUT
VREG
VLCD
V1, V2, V3, V4
*1
RATING
-0.3 to +4.0
-0.3 to +4.0
-0.3 to +20.0
-0.3 to +20.0
-0.3 to +20.0
-0.3 to VLCD + 0.3
-0.3 to VDD + 0.3
-45 to +125
UNIT
V
V
V
V
V
V
V
°C
Note 1) D0 to D15, CSb, RS, RDb, WRb, OSC1, RESb terminals.
Note 2) To stabilize the voltage booster operation, decoupling capacitors must be connected between the
VDD and VSS pins and between the VEE and VSSH pins.
%
RECOMMENDED OPERATING CONDITIONS
PARAMETER
Supply Voltage
Operating Voltage
Operating
Temperature
SYMBOL
VDD1
VDD2
VEE
VLCD
VOUT
VREG
VREF
Topr
TERMINAL
VDD
VEE
VLCD
VOUT
VREG
VREF
MIN
1.7
2.4
2.4
5
TYP
2.1
MAX
3.3
3.3
3.3
18.0
18.0
VOUT × 0.9
3.3
UNIT
V
V
V
V
V
V
V
-30
85
°C
NOTE
*1
*2
*3
*4
*5
Note1)
Note2)
Note3)
Note4)
Applies to the condition when the reference voltage generator is not used.
Applies to the condition when the reference voltage generator is used.
Applies to the condition when the voltage booster is used.
The following relationship among the supply voltages must be maintained.
VSS<V4<V3<V2<V1<VLCD<VOUT
Note5) The relationship: VREF<VEE must be maintained.
- 83 -
NJU6815
■ DC CHARACTERISTICS 1
VSS = 0V, VDD = +1.7 to +3.3V, Ta = -30 to +85°C
High level input voltage
Low level input voltage
High level output voltage
Low level output voltage
High level output voltage
Low level output voltage
Input leakage current
Output leakage current
SYM
BOL
VIH
VIL
VOH1
VOL1
VOH2
VOL2
ILI
ILO
IOH = -0.4mA
IOL = 0.4mA
IOH = -0.1mA
IOL = 0.1mA
VI = VSS or VDD
VI = VSS or VDD
Driver ON-resistance
RON1
|∆VON| = 0.5V
ISTB
CSb=VDD, Ta=25°C VDD = 3V
PARAMETER
Stand-by current
Internal oscillation
Frequency
External oscillation
Frequency
fOSC1
fOSC2
fOSC3
fr1
fr2
fr3
CONDITION
TYP
0.8 VDD
0
VDD - 0.4
MAX
VDD
0.2VDD
0.4
VDD - 0.4
-10
-10
1
2
VLCD = 10V
VLCD = 6V
VDD = 3V
Ta = 25°C
Rf=15kΩ
Rf=68kΩ
Rf=510kΩ
N-time booster (N=2 to 6)
RL = 500kΩ (VOUT - VSS)
VDD = 3V, 6-time booster
Whole ON pattern
VDD = 3V, 6-time booster
Checker pattern
VDD = 3V, 5-time booster
Whole ON pattern
VDD = 3V, 5-time booster
Checker pattern
VDD = 3V, 4-time booster
Whole ON pattern
VDD = 3V, 4-time booster
Checker pattern
Voltage converter
output voltage
VOUT
Supply current (1)
IDD1
Supply current (2)
IDD2
Supply current (3)
IDD3
Supply current (4)
IDD4
Supply current (5)
IDD5
Supply current (6)
IDD6
VBA Operating voltage
VBA
VEE = 2.4 to 3.3V
VREG Operating voltage
VREG
VEE = 2.4 to 3.3V
VREF = 0.9 x VEE
N-time booster (N=2 to 6)
Output Voltage
V2
V3
VD12
VD34
VD24
- 84 -
MIN
490
110
15.9
600
135.5
19.4
575
135
19.6
0.4
10
10
2
4
15
710
160
22.9
(N x VEE)
x 0.95
(0.9 VEE)
x 0.98
(VREF x N)
x 0.97
-100
-100
-30
-30
-30
760
1140
930
1400
520
780
650
980
360
540
450
680
0.9 VEE
(0.9 VEE)
x 1.02
(VREF x N)
0
0
0
0
0
(VREF x N)
x 1.03
+100
+100
+30
+30
+30
UNIT NOTE
V
V
V
V
V
V
µA
µA
*1
*1
*2
*2
*3
*3
*4
*5
kΩ
*6
µA
*7
*8
*9
*10
kHz
kHz
*11
V
*12
µA
*13
V
*14
V
*15
mV
*16
NJU6815
■ CLOCK and FRAME FREQUENCY
PARAMETER SYMBOL
Internal
clock
fOSC
Display mode
Display duty cycle ratio (1/D)<DSE=0>
1/128 to 1/81
1/73 to 1/41
1/33 to 1/25
1/17
16 Gradation mode
fOSC / (62xD)
fOSC / (62xDx2)
fOSC / (62xDx4)
fOSC / (62xDx8)
Simplified
8 gradation mode
fOSC / (14xD)
fOSC / (14xDx2)
fOSC / (14xDx4)
fOSC / (14xDx8)
B&W mode
fOSC / (2xD)
fOSC / (2xDx2)
fOSC / (2xDx4)
fOSC / (2xDx8)
16 Gradation mode
fCK / (62xD)
fCK / (62xDx2)
fCK / (62xDx4)
fCK / (62xDx8)
Simplified
8 gradation mode
fCK / (14xD)
fCK / (14xDx2)
fCK / (14xDx4)
fCK / (14xDx8)
B&W mode
fCK / (2xD)
fCK / (2xDx2)
fCK / (2xDx4)
fCK / (2xDx8)
NOTE
FLM
External
clock
fCK
- 85 -
NJU6815
APPLIED TERMINALS and CONDITIONS
Note 1)
Note 2)
Note 3)
Note 4)
Note 5)
D0-D15, CSb, RS, RDb, WRb, P/S, SEL68, RESb
D0-D15
CL, FLM, FR, CLK
CSb, RS, SEL68, RDb, WRb, P/S, RESb, OSC1
D0-D15 in the high impedance
Note 6) - SEGA0-SEGA79, SEGB0-SEGB79, SEGC0-SEGC79 and COM0-COM127
- Defines the resistance between the COM/SEG terminals and the power supply terminals (VLCD, V1,
V2, V3 and V4) at the condition of 0.5V deference and 1/9 LCD bias ratio.
Note 7) VDD
- The oscillator is halted, CSb=”1” (disabled), No-load on the COM/SEG drivers
Note 8) OSC
- Defines the internal oscillation frequency at (Rf2, Rf1, Rf0)=(0,0,0) in the variable gradation mode.
Note 9) OSC
- Defines the internal oscillation frequency at (Rf2, Rf1, Rf0)=(0,0,0) in the fixed gradation mode.
Note 10) OSC
- Defines the internal oscillation frequency at (Rf2, Rf1, Rf0)=(0,0,0) in the Black & White mode.
Note 11) VDD=3V, Ta=25°C
Note 12) VOUT
- Applies to the condition when the internal voltage booster, the internal oscillator and the internal
power circuits are used.
- VEE=2.4V to 3.3V, EVR= (1,1,1,1,1,1,1), 1/5 to 1/12 LCD bias, 1/129 duty cycle, No-load on
COM/SEG drivers.
- RL=500KΩ between the VOUT and the VSS, CA1=CA2=1.0uF, CA3=0.1uF, DCON=”1”, AMPON=”1”
Note 13) VDD
- Applies to the condition using the internal oscillator and internal power circuits, no access
between the LSI and MPU.
- EVR= (1,1,1,1,1,1,1), All pixels turned-on or checkerboard display in gradation mode. No-load on
the COM/SEG drivers.
- VDD=VEE, VREF=0.9VEE, CA1=CA2=1.0uF, CA3=0.1uF, DCON=”1”, AMPON=”1”, NLIN=”0”, 1/129
Duty cycle, Ta=25°C
Note 14) VBA
- Applies to the condition that VBA=VREF and voltage booster N= 1. DCON=”0”, VOUT=13.5V input.
Note 15) VREG
- VEE=2.4V to 3.3V, VREF=0.9VEE, VOUT=18V, 1/5 to 1/12 LCD bias ratio, 1/129 duty cycle,
EVR=(1,1,1,1,1,1,1)
- Checkerboard display, No-load on the COM/SEG drivers, the voltage booster N=2 to 6,
CA1=CA2=1.0uF, CA3=0.1uF, DCON=”0”, AMPON=”1”, NLIN=”0”
Note 16) VLCD, V1, V2, V3, V4
- VEE=3.0V, VREF=0.9VEE, VOUT=15V, 1/5 to 1/12 LCD Bias, EVR= (1,1,1,1,1,1,1), Display OFF, Noload on the COM/SEG drivers, voltage booster N=5, CA1=CA2=1.0uF, CA3=0.1uF, DCON=”0”,
AMPON=”1”
(1)
(2)
(3)
(4)
- 86 -
VLCD
V1
V2
V3
V4
VSS
VD12: (1)-(2)
VD34: (3)-(4)
VD24: (2)-(4)
NJU6815
■ AC CHARACTERISTICS
!
Write operation (80-type MPU)
tAS8
tAH8
CSb
RS
WRb
tWRLW8
tWRHW8
tDS8
tDH8
D0 to D15
tCYC8
PARAMETER
Address hold time
Address setup time
System cycle time
Enable ”L” level pulse width
Enable ”H” level pulse width
Data setup time
Data hold time
PARAMETER
Address hold time
Address setup time
System cycle time
Enable ”L” level pulse width
Enable ”H” level pulse width
Data setup time
Data hold time
SYMBOL
tAH8
tAS8
CONDITION
MIN.
0
0
(VDD=2.5 to 3.3V, Ta=-30 to +85°C)
MAX.
UNIT
TERMINAL
ns
CSb
ns
RS
tCYC8
tWRLW8
tWRHW8
90
35
35
ns
ns
ns
WRb
tDS8
tDH8
30
5
ns
ns
D0 to D15
SYMBOL
tAH8
tAS8
CONDITION
MIN.
0
0
(VDD=2.2 to 2.5V, Ta=-30 to +85°C)
MAX.
UNIT
TERMINAL
ns
CSb
ns
RS
tCYC8
tWRLW8
tWRHW8
160
70
70
ns
ns
ns
WRb
tDS8
tDH8
40
5
ns
ns
D0 to D15
(VDD=1.7 to 2.2V, Ta=-30 to +85°C)
PARAMETER
Address hold time
Address setup time
System cycle time
Enable ”L” level pulse width
Enable ”H” level pulse width
SYMBOL
tAH8
tAS8
tCYC8
tWRLW8
tWRHW8
CONDITION
MIN.
0
0
MAX.
UNIT
ns
ns
TERMINAL
CSb
RS
180
80
80
ns
ns
ns
WRb
Data setup time
tDS8
70
Data hold time
tDH8
10
Note) Each timing is specified based on 20% and 80% of VDD.
ns
ns
D0 to D15
- 87 -
NJU6815
!
Read operation (80-type MPU)
tAH8
tAS8
CSb
RS
tWRLR8
RDb
tWRHR8
tRDH8
D0 to D15
tRDD8
tCYC8
PARAMETER
Address hold time
Address setup time
SYMBOL
tAH8
tAS8
System cycle time
Enable ”L” level pulse width
Enable ”H” level pulse width
tCYC8
tWRLR8
tWRHR8
Read Data delay time
Read Data hold time
TRDD8
TRDH8
PARAMETER
Address hold time
Address setup time
SYMBOL
tAH8
tAS8
System cycle time
Enable ”L” level pulse width
Enable ”H” level pulse width
tCYC8
tWRLR8
tWRHR8
Read Data delay time
Read Data hold time
TRDD8
TRDH8
CONDITION
MIN.
0
0
(VDD=2.5 to 3.3V, Ta=-30 to +85°C)
MAX.
UNIT
TERMINAL
ns
CSb
ns
RS
180
80
80
CL=15pF
CONDITION
60
0
MIN.
0
0
RDb
ns
ns
D0 to D15
(VDD=2.2 to 2.5V, Ta=-30 to +85°C)
MAX.
UNIT
TERMINAL
ns
CSb
ns
RS
180
80
80
CL=15pF
ns
ns
ns
60
0
ns
ns
ns
RDb
ns
ns
D0 to D15
(VDD=1.7 to 2.2V, Ta=-30 to +85°C)
PARAMETER
Address hold time
Address setup time
System cycle time
Enable ”L” level pulse width
Enable ”H” level pulse width
SYMBOL
tAH8
tAS8
tCYC8
tWRLR8
tWRHR8
CONDITION
MIN.
0
0
300
140
140
Read Data delay time
tRDD8
CL=15pF
Read Data hold time
tRDH8
0
Note) Each timing is specified based on 20% and 80% of VDD.
- 88 -
MAX.
130
UNIT
ns
ns
TERMINAL
CSb
RS
ns
ns
ns
RDb
ns
ns
D0 to D15
NJU6815
!
Write operation (68-type MPU)
tAS6
tAH6
CSb
RS
R/W
(WRb)
tELW6
tEHW6
E
(RDb)
tDS6
tDH6
D0 to D15
tCYC6
PARAMETER
Address hold time
Address setup time
System cycle time
Enable ”L” level pulse width
Enable ”H” level pulse width
Data setup time
Data hold time
PARAMETER
Address hold time
Address setup time
System cycle time
Enable ”L” level pulse width
Enable ”H” level pulse width
Data setup time
Data hold time
SYMBOL
tAH6
tAS6
CONDITION
MIN.
0
0
(VDD=2.5 to 3.3V, Ta=-30 to +85°C)
MAX.
UNIT
TERMINAL
ns
CSb
ns
RS
tCYC6
tELW6
tEHW6
90
35
35
ns
ns
ns
E
tDS6
tDH6
40
5
ns
ns
D0 to D15
SYMBOL
tAH6
tAS6
CONDITION
MIN.
0
0
(VDD=2.2 to 2.5V, Ta=-30 to +85°C)
MAX.
UNIT
TERMINAL
ns
CSb
ns
RS
tCYC6
tELW6
tEHW6
160
70
70
ns
ns
ns
E
tDS6
tDH6
50
5
ns
ns
D0 to D15
(VDD=1.7 to 2.2V, Ta=-30 to +85°C)
PARAMETER
Address hold time
Address setup time
System cycle time
Enable ”L” level pulse width
Enable ”H” level pulse width
SYMBOL
tAH6
tAS6
tCYC6
tELW6
tEHW6
CONDITION
MIN.
0
0
MAX.
UNIT
ns
ns
TERMINAL
CSb
RS
180
80
80
ns
ns
ns
E
Data setup time
tDS6
70
Data hold time
tDH6
10
Note) Each timing is specified based on 20% and 80% of VDD.
ns
ns
D0 to D15
- 89 -
NJU6815
!
Read operation (68-type MPU)
tAS6
tAH6
CSb
RS
R/W
(WRb)
tELR6
tEHR6
E
(RDb)
tRDH6
D0 to D15
tRDD6
tCYC6
PARAMETER
Address hold time
Address setup time
SYMBOL
tAH6
tAS6
CONDITION
MIN.
0
0
System cycle time
Enable ”L” level pulse width
Enable ”H” level pulse width
tCYC6
tELR6
tEHR6
Read Data delay time
Read Data hold time
tRDD6
tRDH6
CL=15pF
0
SYMBOL
CONDITION
MIN.
PARAMETER
(VDD=2.5 to 3.3V, Ta=-30 to +85°C)
MAX.
UNIT
TERMINAL
ns
CSb
ns
RS
180
80
80
70
ns
ns
ns
E
ns
ns
D0 to D15
(VDD=2.2 to 2.5V, Ta=-30 to +85°C)
MAX.
UNIT
TERMINAL
Address hold time
Address setup time
tAH6
tAS6
0
0
ns
ns
CSb
RS
System cycle time
Enable ”L” level pulse width
Enable ”H” level pulse width
tCYC6
tELR6
tEHR6
180
80
80
ns
ns
ns
E
Read Data delay time
Read Data hold time
tRDD6
tRDH6
ns
ns
D0 to D15
PARAMETER
SYMBOL
CL=15pF
CONDITION
0
MIN.
70
(VDD=1.7 to 2.2V, Ta=-30 to +85°C)
MAX.
UNIT
TERMINAL
Address hold time
Address setup time
tAH6
tAS6
0
0
ns
ns
CSb
RS
System cycle time
Enable ”L” level pulse width
Enable ”H” level pulse width
tCYC6
tELR6
tEHR6
300
140
140
ns
ns
ns
E
Read Data delay time
Read Data hold time
tRDD6
tRDH6
ns
ns
D0 to D15
CL=15pF
Note) Each timing is specified based on 20% and 80% of VDD.
- 90 -
0
130
NJU6815
!
Serial interface
CSb
tCSH
tCSS
RS
tASS
SCL
tAHS
tSLW
tSHW
tCYCS
tDSS
tDHS
SDA
PARAMETER
Serial clock cycle
SCL ”H” level pulse width
SCL ”L” level pulse width
Address setup time
Address hold time
Data setup time
Data hold time
CSb – SCL time
CSb hold time
PARAMETER
Serial clock cycle
SCL ”H” level pulse width
SCL ”L” level pulse width
Address setup time
Address hold time
Data setup time
Data hold time
CSb – SCL time
CSb hold time
SYMBOL CONDITION
tCYCS
tSHW
tSLW
tASS
tAHS
tDSS
tDHS
tCSS
tCSH
SYMBOL CONDITION
tCYCS
tSHW
tSLW
tASS
tAHS
tDSS
tDHS
tCSS
tCSH
MIN.
50
20
20
20
20
20
20
20
20
(VDD=2.5 to 3.3V, Ta=-30 to +85°C)
UNIT
MAX.
TERMINAL
ns
ns
SCL
ns
ns
RS
ns
ns
SDA
ns
ns
CSb
ns
MIN.
50
20
20
20
20
20
20
20
20
(VDD=2.2 to 2.5V, Ta=-30 to +85°C)
UNIT
MAX.
TERMINAL
ns
ns
SCL
ns
ns
RS
ns
ns
SDA
ns
ns
CSb
ns
PARAMETER
SYMBOL CONDITION
MIN.
80
Serial clock cycle
tCYCS
35
SCL ”H” level pulse width
tSHW
35
tSLW
SCL ”L” level pulse width
35
Address setup time
tASS
35
Address hold time
tAHS
35
Data setup time
tDSS
35
Data hold time
tDHS
35
CSb – SCL time
tCSS
35
t
CSH
CSb hold time
Note) Each timing is specified based on 20% and 80% of VDD.
(VDD=1.7 to 2.2V, Ta=-30 to +85°C)
UNIT
MAX.
TERMINAL
ns
ns
SCL
ns
ns
RS
ns
ns
SDA
ns
ns
CSb
ns
- 91 -
NJU6815
!
Display control timing
CLK
tDCL
CL
tDFLM
tDFLM
FLM
tFR
FR
Output timing
PARAMETER
FLM delay time
FR delay time
CL delay time
SYMBOL CONDITION
tDFLM
CL=15pF
tFR
tDCL
MIN.
0
0
0
Output timing
PARAMETER
SYMBOL CONDITION
MIN.
FLM delay time
tDFLM
CL=15pF
0
FR delay time
tFR
0
CL delay time
tDCL
0
Note) Each timing is specified based on 20% and 80% of VDD.
- 92 -
(VDD=2.4 to 3.3V, Ta=-30 to +85°C)
MAX.
UNIT
TERMINAL
500
ns
FLM
500
ns
FR
200
ns
CL
(VDD=1.7 to 2.4V, Ta=-30 to +85°C)
MAX.
UNIT
TERMINAL
1000
ns
FLM
1000
ns
FR
200
ns
CL
NJU6815
!
Input clock timing
tCKLW
OSC1
PARAMETER
OSC1 “H” level pulse width (1)
OSC1 “L” level pulse width (1)
OSC1 “H” level pulse width (2)
OSC1 “L” level pulse width (2)
OSC1 “H” level pulse width (3)
OSC1 “L” level pulse width (3)
tCKHW
SYMBOL
tCKHW1
tCKLW1
tCKHW2
tCKLW2
tCKHW3
tCKLW3
CONDITION
MIN.
0.70
0.70
3.13
3.13
21.8
21.8
(VDD=1.7 to 3.3V, Ta=-30 to +85°C)
UNIT
MAX.
TERMINAL
OSC1
1.02
µs
∗1
1.02
µs
OSC1
4.55
µs
∗2
4.55
µs
OSC1
31.4
µs
∗3
31.4
µs
Note) Each timing is specified based on 20% and 80% of VDD.
Note 1) Applied to the variable gradation mode / MON=”0”,PWM=”0”
Note 2) Applied to the fixed gradation mode / MON=”0”,PWM=”1”
Note 3) Applied to the B&W mode / MON=”1”
- 93 -
NJU6815
!
Reset input timing
tRW
RESb
tR
Internal circuit
status
PARAMETER
Reset time
RESb “L” level pulse width
PARAMETER
Reset time
RESb “L” level pulse width
SYMBOL CONDITION
MIN.
tR
tRW
SYMBOL CONDITION
MIN.
RESb
(VDD=1.7 to 2.4V, Ta=-30 to +85°C)
UNIT
MAX.
Terminal
1.5
10.0
µs
µs
10.0
tR
tRW
(VDD=2.4 to 3.3V, Ta=-30 to +85°C)
UNIT
MAX.
Terminal
1.0
Note) Each timing is specified based on 20% and 80% of VDD.
- 94 -
End of reset
During reset
µs
µs
RESb
NJU6815
!
Typical characteristic
PARAMETER
Basic delay time of gate
!
SYMBOL
Ta=+25°C, VSS=0V, VDD=3.0V
MIN
TYP
10
MAX
UNIT
ns
Input output terminal type
(a) Input circuit
VDD
Terminals:
I
CSb, RS, RDb, WRb, SEL68,
P/S, RESb
Input signal
VSS(0V)
(b) Output circuit
Terminals:
VDD
FLM, CL, FR, CLK
Output control signal
O
Output signal
VSS(0V)
(c) Input/Output circuit
VDD
Terminals:
I/O
D0 to D15
Input signal
VSS(0V)
VSS(0V)
Input control signal
VDD
Output control signal
Output signal
VSS(0V)
- 95 -
NJU6815
(d) Display output circuit
VLCD
VLCD
VLCD
V1/V2
Output control
signal 1
Output control signal 2
Output control
signal 3
Output control signal 4
O
VSS(0V)
Terminals:
- 96 -
V3/V4
SEGA0 to SEGA79
SEGB0 to SEGB79
SEGC0 to SEGC79
COM0 to COM127
VSS(0V)
VSS(0V)
NJU6815
■ APPLICATION CIRCUIT EXAMPLES
(1) MPU Connections
80-type MPU interface
1.7V to 3.3V
VCC
A0
A1 to A7
(80-type MPU) IORQb
D0 to D7
RS
7
Decoder
8
RDb
WRb
RESb
VDD
CSb
D0 to D7
RDb
WRb
RESb V
SS
GND
RESET
68-type MPU interface
1.7V to 3.3V
VCC
A0
A1 to A15
(68-type MPU) VMA
RS
15
D0 to D7
Decoder
8
E
R/W
RESb
CSb
D0 to D7
RDb(E)
WRb(R/W)
RESb
GND
VDD
VSS
RESET
Serial interface
1.7V to 3.3V
VCC
A0
A1 to A7
(MPU)
RS
7
Decoder
CSb
PORT1
PORT2
SDA
SCL
RESb
RESb
GND
VDD
VSS
RESET
- 97 -
NJU6815
[CAUTION]
The specifications on this databook are only
given for information , without any guarantee
as regards either mistakes or omissions. The
application circuits in this databook are
described only to show representative usages
of the product and not intended for the
guarantee or permission of any right including
the industrial rights.
- 98 -