M37274EFSP datasheet(85/148 Pages) RENESAS

85 / 148 page

SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER

and ON-SCREEN DISPLAY CONTROLLER

M37274EFSP

PRELIMINARY

Notice:

This

is not

a final

specification.

Some

paramentic

limits

are

subject

to change.

MITSUBISHI MICROCOMPUTERS

Fig. 82. Structure of OSD RAM

Bit

RF0

RF1

RF2

RF3

RF4

RF5

RF6

RF7

RC10

RC11

RC12

RC13

RC14

RC15

RC16

RC17

RC20

RC21

RC22

RC23

Bit name

Character code

(Low-order 8 bits)

Control of

character color R

Control of

character color G

Control of

character color B

OUT1 control

Flash control

Underline control

Italic control

Control of background

color R

Control of background

color G

Control of background

color B

Not used

Function

Specification of

character code in

OSD ROM

0: Color signal output OFF

1: Color signal output ON

0: Character output

1: Background output

0: Flash OFF

1: Flash ON

0: Underline OFF

1: Underline ON

0: Italic OFF

1: Italic ON

0: Color signal output OFF

1: Color signal output ON

Bit name

Character code

(Low-order 8 bits)

Control of

character color R

Control of

character color G

Control of

character color B

OUT1 control

Not used

Control of background

color R

Control of background

color G

Control of background

color B

Not used

Function

Specification of

character code in

OSD ROM

0: Color signal output OFF

1: Color signal output ON

0: Character output

1: Background output

0: Color signal output OFF

1: Color signal output ON

Bit name

Character code

(Low-order 8 bits)

Character color code 0

(CC0)

Character color code 1

(CC1)

Character color code 2

(CC2)

OUT1 control

Extra code 0

(EX0)

Extra code 1

(EX1)

Extra code 2

(EX2)

Background color code 0

(BCC0)

Background color code 1

(BCC1)

Background color code 2

(BCC2)

Extra code 3

(EX3)

Function

Specification of

character code in

OSD ROM

Specification of

character color

0: Character output

1: Background output

Specification of

extra code in OSD

ROM

Specification of

background color

Specification of

extra code in OSD

ROM

CC mode

OSD mode

EXOSD mode

Notes 1: Read value of bits 4 to 7 of the color code 2 is undefined.

2: For “not used” bits, the write value is read.

3: Set “0” to RC10.

RF6

RF5

RF4

RF3

RF2

RF1

RF0 RC17 RC16 RC15 RC14 RC13 RC12 RC11 RC10 RC23 RC22 RC21 RC20

RF7

Blocks 1 to16

Character code

Color code 1

Color code 2

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