LC863864B/56B/48B/40B/32B/28B/24B/20B/16B

No.A0119-2/20

Continued from preceding page.

• ROM correction function

• 16-source 10-vectored interrupt system

• Integrated system clock generator and display clock generator

Only one X’tal oscillator (32.768kHz) for PLL reference is used for both generators

TV control and the closed caption function

All of the above functions are fabricated on a single chip.

Features

Read-only memory (ROM)

: 65536

× 8-bits / 57344 × 8-bits / 49152 × 8-bits /

40960

× 8-bits / 32768 × 8-bits / 28672 × 8-bits /

24576

× 8-bits / 20480 × 8-bits / 16384 × 8-bits for program

16128

× 8-bits for CGROM

Random access memory (RAM)

: 768

× 8-bits (including 128 bytes for ROM correction function)

352

× 9-bits (for CRT display)

OSD functions

• Screen display : 36 characters × 16 lines (by software)

• RAM

: 352 words (9-bits per word)

Display area : 36 words × 8 lines

Control area : 8 words × 8 lines

• Characters

Up to 252 kinds of 16 × 32 dot character fonts (4 characters including 1 test character are not programmable)

Each font can be divided into two parts and used as two fonts : a 16 × 17 dot and 8 × 9 dot character font

At least 111 characters need to be divide to display the caption fonts.

• Various character attributes

Character colors

: 16 colors

Character background colors : 16 colors

Fringe/shadow colors

: 16 colors

Full screen colors

: 16 colors

Rounding

Underline

Italic character (slanting)

• Attribute can be changed without spacing

• Vertical display start line number can be set for each row independently (Rows can be overlapped)

• Horizontal display start position can be set for each row independently

• Different display modes can be set for each row independently

Caption

• Text mode/OSD mode 1/OSD mode 2 (Quarter size) /Simplified graphic mode

Horez. × Vert. = (1 × 1), (1 × 2), (2 × 2), (2 × 4), (0.5 × 0.5)

(1.5 × 1), (1.5 × 2), (3 × 2), (3 × 4), (0.75 × 0.5)

• Shuttering and scrolling on each row

• Simplified graphic display

*1 Note : Range depends on display mode : refer to the manual for details.

Data Slicer (closed caption format)

• Closed caption data and XDS data extraction

• NTSC/PAL, and extracted line can be specified

Bus Cycle Time/Instruction-Cycle Time

Bus cycle time

Instruction cycle time

Clock divider

System clock oscillation

Oscillation frequency

Voltage

0.424

µs

0.848

µs

1/2

Internal VCO

(Ref : X'tal 32.768kHz)

14.156MHz

4.5V to 5.5V

7.5

µs

15.0

µs

1/2

Internal RC

800kHz

4.5V to 5.5V

91.55

µs

183.1

µs

1/1

Crystal

32.768kHz

4.5V to 5.5V

183.1

µs

366.2

µs

1/2

Crystal

32.768kHz

4.5V to 5.5V