tmp88cs38ng TOSHIBA Semiconductor CORPORATION, tmp88cs38ng Datasheet - Page 206

• Manufacturer Part Number: tmp88cs38ng
• Description: Cmos 8-bit Microcontroller
• Manufacturer: TOSHIBA Semiconductor CORPORATION

2.16.4
(2) The field line which has a
second display dot of
character
Auto Field Line Decision
circuit generate the field line decision signals used in the OSD.
The internal vertical and horizontal sync. signals corrected by the jitter elimination
The OSD display in normal mode
The OSD display in double scan mode
Type A)
Type B)
Type C)
Figure 2.16.3 Relation with Field Line and VDSEL, AFLD
Scanning System
When the OSD circuit is used on the TV system which has a phase shift in the
vertical and horizontal sync. Signals every other filed such as the interlace
TV, enable jitter elimination circuit and set “1” to AFLD and VDSEL. At this
time, the field lines which have first and second display dot of character are
displayed.
When the OSD circuit is used on the TV system which has no phase shift in
the vertical and horizontal sync. Signals every other filed such as the
non-interlace TV, enable jitter elimination circuit and clear “0” to AFLD and
VDSEL. At this time, the field line which has a second display dot of
character is only displayed.
Disable jitter elimination circuit and clear “0” to AFLD and VDSEL. At this
time, the field lines which have first and second display dot of character are
displayed.
Type C
Type A
Type B
VDSEL = 1, AFLD = 1
VDSEL = 0, AFLD = 0
VDSEL = 0, AFLD = 0
88CS38-206
Register
(1) and (2)
(1) and (2)
Display
(2)
TMP88CS38/CM38A/CP38A
(1) The field line which has a
first display dot of
character
2007-09-12