UPD6464A Просмотр технического описания (PDF) - NEC => Renesas Technology

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UPD6464A

ON-SCREEN CHARACTER DISPLAY CMOS LSI FOR 12-LINE, 24-COLUMN DECK-TYPE VCR

NEC => Renesas Technology 

µPD6464A,6465

2.3 Internal Video Signal Color Control Command

This command sets the color of an internal video signal. The internal video signal is a video signal (e.g., blue

back) internally generated by the µPD6464A, 6465. While no external video signal is input to the µPD6464A,

6465 and therefore no character can be displayed, if the internal video signal is selected, characters can be

displayed.

D7 D6 D5 D4 D3 D2 D1 D0

0

0

1

0

R

G

B

0

Internal video signal color control bits

R

G

B

Function

0

0

0

Black

0

0

1 Blue

0

1

0 Green

0

1

1 Setting prohibited

1

0

0

Setting prohibited

1

0

1 Setting prohibited

1

1

0 Setting prohibited

1

1

1 White

• Internal video signal color control bits

These bits can select four colors as the color of the internal video signal.

2.4 Background Control Command

This command selects the background of the displayed character.

D7 D6 D5 D4 D3 D2 D1 D0

0

0

1

1

0 BS1 BS0 0

Background control bits

BS1 BS0

Function

0

0 No background

0

1 Black framing

1

0 Black-on-white

1

1 Black filling

10

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