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MSM6255 Datasheet(PDF) 13 Page - OKI electronic componets

Part # MSM6255
Description  DOT MATRIX LCD CONTROLLER
PDF  39 Pages
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Manufacturer  OKI [OKI electronic componets]
Direct Link  http://www.oki.com
Logo OKI - OKI electronic componets

MSM6255 Datasheet(HTML) 13 Page - OKI electronic componets

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MSM6255
¡ Semiconductor
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Register
A0
D7
Instruction register
H
L
Time division register
L
D6
L
D5
L
D4
L
D3
L
(NX – 1)
D2
L
D1
H
D0
H
– Character pitch register
Register
A0
D7
Instruction register
H
L
Character pitch register
L
D6
L
(Vp – 1)
D5
L
D4
L
D3
L
L
D2
L
D1
L
(Hp – 1)
D0
H
Hp represents the number of bits to be displayed among one byte display data sent from RAM.
The value of Hp is the following five types.
Hp
D2
D1
D0
4L
H
H
5H
L
L
6H
L
H
7H
H
L
8H
HH
– Horizontal character number register
Register
A0
D7
Instruction register
H
L
Character number register
L
D6
L
D5
L
D4
L
D3
L
(HN – 1)
D2
L
D1
H
D0
L
L
Assuming that the total horizontal dot number of the display is nH,
nH = Hp x HN,
where HN = 2 to 128.
The maximum value of nH = 8 x 128 = 128 bytes = 1,024 dots.
– Duty number register
Nx = 2 to 256
– Cursor form register
Register
A0
D7
Instruction register
H
L
Cursor position register
L
D6
L
D5
L
D4
L
D3
L
(Cpu – 1)
D2
H
D1
L
D0
L
(Cpd – 1)
The cursor is displayed on the lines from Cpu to Cpd in the character display mode. The length
of the cursor in the horizontal direction is equal to the character pitch in the horizontal direction,
Hp. The cursor is not displayed in graphic mode. The relation between the cursor and Vp is as
follows.



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