LC74781 데이터 시트보기 (PDF) - SANYO -> Panasonic

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LC74781

On-Screen Display Controller LSI for VCR Products

SANYO -> Panasonic 

LC74781, 74781M

x COMMAND0 (Display memory write address setup command)

First byte

DA0 to DA7

7

6

5

4

3

2

1

0

Register name

—

—

—

—

V3

V2

V1

V0

State

1

0

0

0

0

1

0

1

0

1

0

1

Register content

Function

Command 0 identification code

Set the display memory write address.

Display memory address (0 to B hexadecimal)

Second byte

DA0 to DA7 Register name

State

Register content

Function

7

—

0 Second byte identification bit

6

—

0

5

—

0

0

4

H4

1

0

3

H3

1

0

2

H2

Display memory address (0 to 17 hexadecimal)

1

0

1

H1

1

0

0

H0

1

Note: The register states are all set to zero when the LC74781/M is reset with the RST pin.

 COMMAND1 (Display character data write setup command)

First byte

DA0 to DA7

7

6

5

4

3

2

1

0

Register name

—

—

—

—

—

—

—

at

State

1

0

0

1

0

0

0

0

1

Register content

Function

Command 1 identification code

Set up display character data write.

Character attribute off

Character attribute on

Note

Note

Note

When this command is input, the

LC74781/M locks into the display

character data write mode until the CS

pin goes high.

No. 4988-8/16

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