UPD16680 datasheet(31/44 Pages) NEC

31 / 44 page

Data Sheet S12694EJ2V0DS00

µµµµPD16680

CPU ACCESS EXAMPLE

12.1 Initialize and write data

Command / Data

Item

STB

b7 b6 b5 b4 b3 b2 b1 b0

Explanation

Start

xxx

Reset

010

xxx

Duty setting

1/53 duty

xxx

Address Register 1

Dot address

Address Register 2

X address = 00H

Address Register 3

Y address = 00H

xxx

Data R/W mode

011

Data write,

The address is incremented starting from the current one.

Dot display Data 1

Dot display Data 663

Dot data

(63 bytes)

xxx

Address Register 1

Pictograph group address

Address Register 2

X address = 00H

Address Register 3

Y address = 00H

xxx

Data R/W mode

011

Data write,

The address is incremented starting from the current one.

Pictograph Data 1

Pictograph Data 13

Pictograph data

(13 bytes)

xxx

Display ON / OFF

000

LCD ON

End

xxx

Remark x = Don't Care, D = data

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