LC87F40C8A

No.A0139-2/26

Minimum Bus Cycle Time

• 71 ns (14.1MHz)

Note: The bus cycle time here refers to the ROM read speed.

Minimum Instruction Cycle Time

• 212 ns (14.1MHz)

OSD

• Screen size

: 36 characters

× 16 lines

• Display RAM size

: 704 words (1 word=10 bits)

Display area : 36 words

× 16 lines

Control area : 8 words

× 16 lines

• Font types

: 16

× 32 font, 512 types (16 CGRAM fonts, including 4 fixed fonts)

An arbitrary number of characters can be generated as 16

× 17 or 8 × 9 font characters.

• Display colors

: 4096 colors

Character text, background, borders, and full background can be displayed.

• Display mode specifiable on a line basis.

Normal, 4-color pixel map, 16-color pixel map, and caption text modes

• Vertical display start line and horizontal display start position specifiable on a line basis.

• Shutter function (specifying the display start or stop line) and scroll functions specifiable on a line basis.

(Horizontal

×Vertical) = (1×1), (1×2), (2×1), (2×2), (2×4)

(4

×2), (4×4), (4×8), (1.5×1), (1.5×2)

(3

×1), (3×2), (3×4), (6×2), (6×4), (6×8)

• Cursor display function (4/16 pixel colors)

• Multilayer display

• Full screen display area specifiable.

• OSD clock selectable (normal speed mode/high speed mode/external input)

• Interlace/progressive scan selectable

*1: The supported range varies depending on the active display mode. Refer to the user's guide for details.

Data Slicer Function (closed caption format)

• Extracts closed caption data and XDS data.

• NTSC/PAL selectable and line specifiable.

Ports

• Normal withstand voltage I/O ports

Ports whose I/O direction can be designated in 1-bit units 41 (P1n, P2n, P3n, P70 to P73, P8n, PC0 to PC4)

Ports whose I/O direction can be designated in 4-bit units

8 (P0n)

Timers

• Timer 0: 16-bit timer/counter with a capture register.

Mode 0: 8-bit timer with an 8-bit programmable prescaler (with an 8-bit capture register)

× 2 channels

Mode 1: 8-bit timer with an 8-bit programmable prescaler (with an 8-bit capture register) + 8-bit

counter (with an 8-bit capture register)

Mode 2: 16-bit timer with an 8-bit programmable prescaler (with a 16-bit capture register)

Mode 3: 16-bit counter (with a 16-bit capture register)

• Timer 1: 16-bit timer/counter that supports PWM/toggle outputs

Mode 0: 8-bit timer with an 8-bit prescaler + with an 8-bit prescaler 8-bit timer/counter

Mode 1: 6-bit timer/counter with an 8-bit prescaler

• Timer 4: 8-bit timer with a 6-bit prescaler

• Timer 5: 8-bit timer with a 6-bit prescaler

• Base timer

1) The clock is selectable from the subclock (32.768kHz crystal oscillation), system clock, and timer 0 prescaler

output.

2) Interrupts programmable in 5 different time schemes