TMP88CS38 datasheet(145/226 Pages) TOSHIBA

145 / 226 page

TMP88CS38/CM38A/CP38A

2007-09-12

88CS38-145

1. Code plane

OSD character is displayed on the code plane.

The code plane consists of 32 characters

× 1 row and a total of 12 planes. The 12

planes have the priority such as code 1

> code 2 > ... > code 11 > code 12.

On the code plane, characters of 16

× 18 dots is displayed. These fonts are called

characters, and read from character ROM and display memory through the character

code on the display memory.

2. Area plane

The area on a screen is displayed on the area plane.

The area plane can display 2 square areas of any size by specifying coordinates. The

2 planes have the priority such as area plane 1

> area plane 2.

2.15.1

Configuration

Figure 2.15-1 OSD Circuit

Oscillation

circuit for

OSD display

Jitter

elimina-

tion

circuit

Horizontal position

counter

Horizontal position

decoder

Vertical position counter

Vertical position decoder

OSD control

Display memory

× 12 × 16 bits

Character ROM

384

× 16 × 18 bits

OSD

interrupt

Y/BL

P57 (I)

P67 (Y/BL)

P66 (B)

P65 (G)

P64 (R)

P60 (Y/BLIN)

P61 (BIN)

P62 (GIN)

P63 (RIN)

P71 ( VD )

P70 ( HD )

Character

data

Character

code

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