VV5430

Shuffle Modes

CD5430F-A

17/33

In addition there are line level signals to identify the top and bottom half of the active video area of the field: .

There is a ‘black band’ of three video lines between the valid lines in the top half of the field and the valid lines in the bot tom half

of the field. This ensures that both halves of the field are the same size and provides a horizontal frame line. The line level timing

described above also provides a two pixel vertical black line, hence the four quarters appear to be ‘framed’ in the display.

Inter-quarter Interval

t2

2

0.2713

2

0.3333

Duration of right quarter line

190

25.4928

158

26.0052

Right quarter border

t3

1

0.1356

1

0.1667

Duration of standard SI

t4

384

52.0704

320

53.3440

Description

Start line

Number of lines

CCIR

EIA

CCIR

EIA

Top half of field

First active line

First active line

142

120

Bottom half of field

Active line 145

Active line 124

142

120

Table 12 : Line Timings for 1/4 mode

Description

#t

CCIR

EIA

pck

cycles

Time

(us)

pck

cycles

Time

(us)

Table 11 : Pixel Timings for 1/4 mode