µPD6464A,6465

5

CONTENTS

1.

COMMANDS ....................................................................................................................................

7

1.1

Command Format .................................................................................................................

7

1.2

Command List .......................................................................................................................

7

1.3

Power-ON Clear Function ....................................................................................................

8

2.

COMMAND DETAILS .....................................................................................................................

8

2.1

Video RAM Batch Clear Command .....................................................................................

8

2.2

Display Control Command ...................................................................................................

9

2.3

Internal Video Signal Color Control Command ..................................................................

10

2.4

Background Control Command ...........................................................................................

10

2.5

Internal/external Mode Control, Crystal Oscillation Control Command ..........................

14

2.6

Video Signal Method Control Command ............................................................................

15

2.7

Oscillation Method Control Command ...............................................................................

16

2.8

Display Position Control Command ....................................................................................

17

2.9

Write Address Control Command .......................................................................................

19

2.10 Output Level Control Command ..........................................................................................

20

2.11 Character Size Control Command .......................................................................................

21

2.12 Test Mode Command ............................................................................................................

22

2.13 Display Character Control Command (2-byte contiguous command) ............................

22

3.

TRANSFERRING COMMANDS .....................................................................................................

23

3.1

1-Byte Command ..................................................................................................................

23

3.2

2-Byte Command ..................................................................................................................

23

3.3

2-Byte Contiguous Command .............................................................................................

23

3.4

Successive Command Input ................................................................................................

24

3.4.1 When 2-byte contiguous command end code is not used .....................................

24

3.4.2 When 2-byte contiguous command end code is used ............................................

24

3.5

BUSY Period for Command Input ........................................................................................

25

3.5.1 When inputting 1-byte or 2-byte command ..............................................................

25

3.5.2 When inputting 2-byte contiguous command ..........................................................

25

4.

ADJUSTING .....................................................................................................................................

27

4.1

Adjusting Oscillation Frequency .........................................................................................

27

4.1.1 Adjusting

×4 multiplier and crystal oscillation frequency ...................................... 27

4.1.2 Adjusting LC oscillation frequency (dot clock) .......................................................

27

4.2

Test Mode Clear Command ..................................................................................................

28

4.3

Clamp Level of Video Signal ................................................................................................

28

5.

COMPOSITE SYNC. SIGNAL SEPARATION CIRCUIT .................................................................

30

6.

CHARACTER PATTERN DATA ....................................................................................................

32

6.1

Standard Character Patterns of the

µPD6464A .................................................................. 33

6.2

Standard Character Patterns of the

µPD6465 .................................................................... 36