¡ Semiconductor

MSM6669

8/9

These are display data input pins. Display data is input in synchronization with a clock pulse.

Table 1 gives the relation between the display data, DF, liquid crystal drive output, and liquid

crystal display.

Table 1

• SHL

This is an input pin used to change the loading direction of display data.

Table 2

Display data

Liquid crystal drive output

L

H

L

H

DF

Liquid crystal display

OFF

ON

OFF

ON

L

L

H

H

Non-select level

Select level

Non-select level

Select level

SHL

L

H

Direction of data loading

Last data

First data

→

→

→

→

→

→

→

→

→

→

→

→

→

→

→

→