LC74794 データシートの表示（PDF） - SANYO -> Panasonic

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LC74794

On-Screen Display Controller LSI

SANYO -> Panasonic 

LC74794, 74794M

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

First byte

DA

0 to 7

7

6

5

4

3

2

1

0

Register

—

—

—

—

HS21

HS20

HS11

HS10

State

1

0

1

1

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

7

6

5

4

3

2

1

0

Register

—

—

HP5

(MSB)

HP4

HP3

HP2

HP1

HP0

(LSB)

State

0

0

0

1

0

1

0

1

0

1

0

1

0

1

Contents

Function

Second byte identification bit

If HS is the horizontal start position then:

5

HS

=

Tc

×

(2

n

Σ

=

2n

0

HPn)

Tc: Period of the oscillator connected to OSCIN/OSCOUT in operating

mode.

Note: All registers are set to 0 when the LC74794/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. 5557-11/30

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