Sub-Screen Size

The vertical and horizontal directions can be controlled independently.

• Vertical size

– 1/3: Three scan lines are compressed to one.

– 1/4: Four scan lines are compressed to one.

• Horizontal size

– 1/3: A/D clock : D/A clock = 1:3

– 1/4: A/D clock : D/A clock = 1:4

When 1/4 compression is used, the output data will be 3/4 of 1/3 of the input data.

– Aspect ratio correction function

The horizontal size is adjusted by changing the VCO frequency (system clock).

This frequency can be changed from –30% to +30%.

Wipe Function

The WTOP, WBOT, WLEFT, and WRIGHT operations can be specified independently.

Display Area Function

This function controls an area to be blanked.

The vertical and horizontal directions can be set independently.

The operating mode is set using the wipe function WTOP, WBOT, WLEFT, and WRIGHT parameters.

No. 5519-5/14

LC74411N, LC74411NE