SED1330F Datasheet, PDF (105/148 Pages) List of Unclassifed Manufacturers – LCD Controller ICs

7.0 – 7.1
7.0 TV Mode (SED1336F only)
When used with an external video mixer circuit, the
SED1336F can show the same display on a television
as on the LCD panel. In addition, the changeover from
LCD-only to TV-and-LCD display is instantaneous
with the changing of the T/L register using the System
Set instruction.
7.0 TV Mode (SED1336F only)
The TV and LCD display register parameters which
are determined by hardware constraints are shown in
Table 26.
Table 26. Register parameters
Clock Cycles Oscillator
System TC/R (Hex) C/R (Hex) L/F (Hex)
per
Frequency,
T/L
Horizontal Line fO (MHz)
NTSC
2A
1F
C7
388
6.1050
1
PAL
2A
1F
C7
388
6.0625
1
LCD
≥ 2A
1F
C7
≥ 388
6.0625 or
6.1050
0
7.1 Sync Generator Circuit Timing
The NTSC and PAL vertical sync signal waveforms
are shown in Figure 59 and 60, respectively. The
vertical sync timing parameters and VSD output states
are shown in Table 27.
21H
H
Horizontal
sync interval
Display
interval
Pre-blanking
interval
1.5 ± 0.1µs
3H
Color field I vertical blanking interval
TI
3H
3H
1
2
3
4
5
6
7
8
9
10
11H
19
20
Start of
field I
H
Interval before
equalizing pulses
H
Equalizing Vertical serration 0.5H
pulse interval pulse interval
Vertical Sync
pulse interval
Interval after
equalizing pulses
H
Reference
subcarrier phase
color field I
9-line vertical interval
21H
Post-
blanking
interval
Display
interval
Figure 67. NTSC vertical sync waveform
268-0.4 _{S-MOS Systems, Inc. • 2460 North First Street • San Jose, CA 95131 • Tel: [phone] • Fax: [phone]}