PEDL9040A-03
¡ Semiconductor
ML9040A-Axx/-Bxx
When the display is shifted by instruction, the correspondence between the LCD
display position and the DD RAM address changes as shown below:
(Display shifted to right)
First
digit
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16
First line
27 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E
67 40 41 42 43 44 45 46 47 48 49 4A 4B 4C 4D 4E
Second line
ML9040A-Axx/-Bxx display
MSM5259 display
(Display shifted to left)
First
digit
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16
First line
01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 10
41 42 43 44 45 46 47 48 49 4A 4B 4C 4D 4E 4F 50
Second line
ML9040A-Axx/-Bxx display
MSM5259 display
(8)Since the ML9040A-Axx/-Bxx has a DD RAM capacity of up to 80 characters, up to 4
MSM5259 devices can be connected to the ML9040A-Axx/-Bxx in the 2-line display
mode.
First
digit 2
3
4
5
6
7
8
9 10 11 12 13 14 15 16 17 18
33 34 35 36 37 38 39 40
20 21 22 23 24 25 26 27
First line
00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 10 11
Second line 40 41 42 43 44 45 46 47 48 49 4A 4B 4C 4D 4E 4F 50 51
60 61 62 63 64 65 66 67
ML9040A-Axx/-Bxx display MSM5259 (1) display MSM5259
MSM5259 (4) display
(2) - (3) display
Character Generator ROM (CG ROM)
The CG ROM is used to generate 5 x 7 dots (160 kinds) or 5 x 10 dots (32 kinds) character
patterns from an 8-bit DD RAM character code signal.
Thecorrespondencebetween8-bitcharactercodesandcharacterpatternsofstandardcode
01 is shown in Table 2.
When the 8-bit character code of the CG ROM is written to the DD RAM, the character
patternoftheCGROMcorrespondingtothecodeisdisplayedontheLCDdisplayposition
corresponding to the DD RAM address.
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