saa569x NXP Semiconductors, saa569x Datasheet - Page 91

• Manufacturer Part Number: saa569x
• Description: Enhanced Tv Microcontrollers With On-screen Display Osd
• Manufacturer: NXP Semiconductors

Philips Semiconductors
23.11.2 D
The display (see Fig.45) consists of the two screen
colours covering each half of the screen and two text
areas that are placed within the visible screen area. The
screen colour extends over a large vertical and horizontal
range so that no offset is needed. Both text areas are
offset in both directions relative to the vertical and
horizontal sync pulses.
2002 May 06
handbook, full pagewidth
Enhanced TV microcontrollers with
On-Screen Display (OSD)
OUBLE WINDOW MODE
horizontal
delay
sync
0.25 character
horizontal sync
offset
screen colour
offset = 8 s
min. 2 characters
text area
Page B start
start A
0.25 character
text area end A
Fig.45 Page positioning.
spaces
offset
SCREEN COLOUR AREA
AREA A
TEXT
91
56 s
The second page may be positioned relative to the
HSYNC delay using the Page B Position MMR.
The visible text area for Page A is controlled using the
Text Area Start and Text Area End MMRs. Page B visible
text area is controlled using the Text Area Start B and
Text Area End B MMRs.
AREA B
text area
start B
TEXT
text area
end B
vertical
offset
text
GSA079
6 lines
offset
SAA567x; SAA569x
vertical
sync
Objective specification