NJU6682CH 데이터 시트보기 (PDF) - Japan Radio Corporation

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NJU6682CH

160-common x 132-segment DOT MATRIX LCD DRIVER FOR 4 GRAY SCALE

Japan Radio Corporation  

NJU6682

3-13)Variable RAM Mapping Mode

At this Variable RAM Mapping Mode, it is possible to define the RAM area in a maximum of 8-blocks not to continue

to display the screen. Therefore, it is easy to replace a part of the Display Data each other(Fig.7, 8).

When using this Variable RAM Mapping Mode, the Z Address is defined by “3-2)Z Address Set instruction” will

be invalid. So, Vertical Scroll with changing a Z Address will be unable.

And, it is available to define the Display Line Number of each blocks as “1” to “63”, but it must not define as “0”.

If setting the all Display Line Number more than the Duty, the line data which is over the Duty will not be displaied.

After Reset is executed, the resister about this Variable RAM Mapping Mode will be indefinite.

1st Block Y Address

A

1st Block

A

Display Line Number

2nd Block Y Address

B

3rd Block Y Address

B

2nd Block

Display Line Number

C

4th Block Y Address

C

3rd Block

Display Line Number

D

D

4th Block

Display Line Number

E

5th Block Y Address

6th Block Y Address

E

5th Block

Display Line Number

F

G

7th Block Y Address

6th Block

F

Display Line Number

H

G

7th Block

Display Line Number

8th Block Y Address

H

8th Block

Display Line Number

Fig.7-1 The setup of Variable RAM Mapping

Mode, and the Address Map

Fig.7-2 The actual view of the Display

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