MSM6255GS-K Просмотр технического описания (PDF) - Oki Electric Industry

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MSM6255GS-K

DOT MATRIX LCD CONTROLLER

Oki Electric Industry 

¡ Semiconductor

MSM6255

FUNCTIONAL DESCRIPTION

LCDC Internal Registers

The internal registers include one instruction register (IR) and nine data registers. (See Table

1.)

Table 1 MSM6255 Internal Registers

Instruction

CS A0 register Register

3210

Register name

H X XXXX

–

Invalid

L H XXXX

IR

Instruction register

L L L L L L MOR Mode control register

L L LLLH

PR

Character pitch register

L L LLHL

HNR

Horizontal character number

register

READ WRITE

Data bit

76543210

–

–

XXXX

X

X

X

X

L L L L H H DVR Duty number register

X

L L L H L L CPR Cursor form register

L L L H L H SLR Start address (lower) register

L L L H H L SUR Start address (upper) register

L L L H H H CLR

Cursor address (lower)

register

L L HLLL

CUR

Cursor address (upper)

register

Note: "L" is read if the data of the registers marked X is read.

– Instruction register

The instruction register is a register for specifying the address of the data register which is

accessed.

This register is cleared when RES input is "L".

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