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HD66732
22
Table 7
Relationship between Display Position and CGRAM Address in Graphics Display Mode
(GR = 1, SPR = 0) and Super-imposed Display Mode (SPR = 1)
DB0
DB1
DB2
DB3
DB4
DB5
DB6
DB7
000
001 002 003 004 005 006 007 008 00900A00B00C00D00E00F 010
076 077
075
074
073
COM1
COM2
COM3
COM4
COM5
COM6
COM7
COM8
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
1
0
1
0
0
1
1
1
1
0
1
0
1
0
1
0
1
0
0
0
0
0
0
1
0
0
0
0
0
0
1
0
1
1
1
0
1
0
1
0
1
1
0
0
1
0
1
0
0
1
0
0
1
1
1
1
0
1
0
1
1
1
0
1
1
1
0
1
0
1
0
0
1
0
0
0
0
0
1
0
1
1
1
1
1
1
1
1
1
1
1
0
1
0
1
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
1
0
0
1
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
Segment
Driver
Common
Segment
(HEX)
0
0
0
0
0
0
0
0
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
SGS=0
SGS=1 077 076 075 074 073 072 071 070 06F06E06D06C06B06A 069068 067
001 000
002
003
004
100 101 102 103 104 105 106 107 108 10910A10B10C10D10E 10F110
176 177
175
174
173
(HEX)
SGS=0
SGS=1 177 176 175 174 173 172 171 17016F16E16D16C16B16A169 168 167
101 100
102
103
104
COM9–
COM16
DB0–
DB7
200 201 202 203 204 205 206 207 208 20920A20B20C20D20E 20F210
276 277
275
274
273
(HEX)
SGS=0
SGS=1 277 276 275 274 273 272 271 27026F26E26D26C26B26A269 268 267
201 200
202
203
204
COM17–
COM24
DB0–
DB7
300 301 302 303 304 305 306 307 308 30930A30B30C30D30E 30F310
376 377
375
374
373
(HEX)
SGS=0
SGS=1 377 376 375 374 373 372 371 37036F36E36D36C36B36A369 368 367
301 300
302
303
304
COM25–
COM32
DB0–
DB7
400 401 402 403 404 405 406 407 408 40940A40B40C40D40E 40F410
476 477
475
474
473
(HEX)
SGS=0
SGS=1 477 476 475 474 473 472 471 47046F46E46D46C46B46A469 468 467
401 400
402
403
404
COM33–
COM40
DB0–
DB7
500 501 502 503 504 505 506 507 508 50950A50B50C50D50E 50F510
576 577
575
574
573
(HEX)
SGS=0
SGS=1 577 576 575 574 573 572 571 57056F56E56D56C56B56A569 568 567
501 500
502
503
504
COM41–
COM48
DB0–
DB7
600 601 602 603 604 605 606 607 608 60960A60B60C60D60E 60F610
676 677
675
674
673
(HEX)
SGS=0
SGS=1 677 676 675 674 673 672 671 67066F66E66D66C66B66A 669 668 667
601 600
602
603
604
COM49
COM50
COM51
COM52
DB0
DB1
DB2
DB3
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
0/1
A
A
A
A
A
A
A
Notes: 1. When the RM1/0 bit is set to "10", the CGRAM can be selected.
2. In the graphics display mode (GR = 1 and SPR = 0) and super-imposed display mode (SPR = 1), the CGRAM
data is displayed irrespective of the DDRAM set data.
3. Writing to the upper four bits (DB4–DB7) in CGRAM addresses 600H–677H is invalid.
4. A set bit in CGRAM 1 corresponds to display selection (lit) and 0 to non-selection (unlit).