Seiko Instruments G1216B1N000-3D0E User Manual

Page 22

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AN.No.G1216B1N000-3D0E

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(3) X-address (page) set

DB

0

Code

D/I

DB

7

1

0

1

1

1

A

A

A

R/W

0

0

Upper bits

Lower bits

The display data RAM “X” address (page) which is expressed with binary AAA is set in the X-address

register. Following write/read operations from the MPU are performed on the specified X-address

(page) until the next X-address (page) set is performed. The configuration of display data RAM and

X-address is shown in Figure 9.

DB

0

Code

D/I

DB

7

0

1

A

A

A

A

A

A

R/W

0

0

Upper bits

Lower bits

(4) Y-address set

The display data RAM Y- address which is expressed with binary AAAAAA is set in the Y-address

counter. After that the Y-address counter advances by one each time write/read is performed from

the MPU. The configuration of the display data RAM and Y-address is shown in Figure 9.

Page 0

Y-address

DB

0

to

DB

7

X=0

Page

1

DB

0

to

DB

7

X=1

Page 6

DB

0

to

DB

7

X=6

Page 7

DB

0

to

DB

7

X=7

0

1

2

3

4

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

61 62 63

Figure 9 Display Data RAM Address Configuration

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