ENH064V1-300/450

Original specifications created by Sharp.

7

Display Systems Division • Hillsboro, OR • (503) 690-2460 • www.wedc.com

White Electronic Designs Corp. reserves the right to change products or specifications without notice.

August 2003

Rev. 0

White Electronic Designs

Display Systems Division

VERTICAL DISPLAY POSITION

The vertical display position is automatically centered

in the active area at each mode of VGA,480-,400-,and

350-line mode. Each mode is selected depending on the

polarity of the synchronous signals described in Note 1

on page 2.

In each mode, the data of TVn is displayed at the top line

of the active area. The display position will be centered

INPUT DATA SIGNALS AND DISPLAY POSITION ON THE SCREEN

Display position of input data (480 lines mode)

on the screen like the following figure when the period of

vertical synchronous signal, TV, is typical value.

In 400-,and 350-line mode, the data in the vertical data

invalid period is also displayed. So, inputting all data “()”

is recommended during vertical data invalid period.

ENAB signal has no relation to the vertical display

position.

Mode

V-data start (TVs)

V-data Perioc (TVd)

V-display Start (TVn)

V-display Period

Unit

480

34

480

34

480

line

400

34

400

443-TV

480

line

350

61

350

445-TV

480

lute

data invalid period

data invalid period

data invalid period

data invalid period

data period

data period

4 0 lines

4 0 lines

4 0 0 lines

6 5 lines

6 5 lines

3 5 0 lines

400 lines mode (TV=449)

350 lines mode (TV=449)

D1, DH1

D1, DH2

D1, DH3

D2, DH1

D2, DH2

D3, DH1

D1, DH480

D640, DH1

D640, DH480

RG

B

UP

R/L = OPEN

U/D = OPEN