LC74798M 查看數據表（PDF） - SANYO -> Panasonic

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LC74798M

On-Screen Display Controller IC

SANYO -> Panasonic 

LC74798, 74798M

COMMAND3 (Horizontal display start position and horizontal size setup command)

• First byte

DA

0 to 7

7

6

5

4

Register

—

—

—

—

3

HS21

2

HS20

1

HS11

0

HS10

State

1

0

1

0

0

1

0

1

0

1

0

1

Contents

Function

Command 3 identification code.

Sets the horizontal display start position and the horizontal character

size.

HS21

HS20

0

1

HS11

HS10

0

1

0

1Tc/dot

3Tc/dot

0

1Tc/dot

3Tc/dot

1

2Tc/dot

1Tc/dot

1

2Tc/dot

1Tc/dot

Notes

Second line horizontal character size

First line horizontal character size

• Second byte

DA

0 to 7

Register

State

Contents

Function

7

—

0 Second byte identification bit

6

—

0

HP5

0

5

(MSB)

1

4

HP4

3

HP3

2

HP2

1

HP1

0

1

0 If HS is the horizontal start position then:

( ) 1

HS = Tc ×

2

5

∑

2n

VPn

0

n=0

1 Tc: Period of the oscillator in operating mode.

0

1

HP0

0

0

(LSB)

1

Note: All registers are set to 0 when the LC74798/M is reset by the RST pin.

Notes

The horizontal display start position is set by the 6

bits HP0 to HP5.

The weight of bit 1 is 2Tc.

No. 5833-11/32

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