LC74731W-9818-E 查看數據表（PDF） - ON Semiconductor

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LC74731W-9818-E

On-Screen Display Controller

ON Semiconductor 

LC74731W, LC74732W

• Second byte (2)

DA0 to 7 Register

State

Content

Function

7

—

0

6

—

0

5

—

0

0 Character code (00xx to 1Fxx (hexadecimal))

4

c12

1

0

3

c11

1

0

2

c10

1

0

1

c09

1

0

0

c08

1

Note that all registers are set to 0 when these ICs are reset by the RST pin.

Notes

External ROM upper address

• Second byte (3)

DA0 to 7 Register

7

c07

6

c06

5

c05

4

c04

3

c03

2

c02

1

c01

0

c00

State

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

Content

Function

Character code (00 to FF (hexadecimal))

FE (hexadecimal): Space character

FF (hexadecimal): Transparent space character

Note that all registers are set to 0 when these ICs are reset by the RST pin.

Continuous mode (cleared by setting CS high) operates as follows according to IR.

When internal ROM is specified: 1-1 1-2-1

1-2-2

1-2-3

1-2-3

When external ROM is specified: 1-1 1-2-1

1-2-2

1-2-3

1-2-2

1-2-3

1-2-3

Notes

External ROM lower address

Internal ROM address

1-2-3

1-2-2

1-2-3

13/39

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