MSM6562B Ver la hoja de datos (PDF) - Oki Electric Industry

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componentes Descripción

Fabricante

MSM6562B

DOT MATRIX LCD CONTROLLER DRIVER

Oki Electric Industry 

¡ Semiconductor

MSM6562B-xx

5. Display Data RAM (DD RAM)

This RAM is used to store the display data of 8-bit character codes (see Table 2).

DD RAM address corresponds to the display position of the LCD. The correspondence between

the two is described in the following.

DD RAM address (set to ADC) is expressed in hexadecimal notation as shown below:

DB6

DB0

ADC

MSB

LSB

Hexadecimal notation

Hexadecimal notation

(Example)

When DD RAM address

is 2A

L

H

L

H

L

H

L

2

A

1-1) Correspondence between address and display position in the 1-line display mode

First digit 2 3 4 5

00 01 02 03 04

MSB

79 80

4E 4F

LSB

Display position

DD RAM address (hex.)

1-2) When the MSM6562B-xx alone is used, up to 20 characters can be displayed from the

first digit to the twentieth digit.

First digit 2 3 4

00 01 02 03

19 20

12 13

When the display is shifted by instruction, the correspondence between the LCD

display

position and the DD RAM address changes as shown below:

First digit 2 3 4

(Display shifted to right)

4F 00 01 02

19 20

11 12

First digit 2 3 4

(Display shifted to left)

01 02 03 04

19 20

13 14

14/50

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