saa5288 NXP Semiconductors, saa5288 Datasheet - Page 19

• Manufacturer Part Number: saa5288
• Description: Microcontroller With Full Screen Screen Display
• Manufacturer: NXP Semiconductors

Philips Semiconductors
1997 Jun 24
Teletext Register 1 (TXT1) - WRITE only
FIELD POLARITY
H POLARITY
V POLARITY
PRD4 to PRD0
Teletext Register 4 (TXT4) - WRITE only
EAST/ WEST
DISABLE DBL HGHT disable display of double height teletext control codes (logic 1) in OSD boxes
B MESH ENABLE
C MESH ENABLE
TRANS ENABLE
SHADOW ENABLE
Teletext Register 5 (TXT5) - WRITE only
BKGND OUT
BKGND IN
COR OUT
COR IN
TEXT OUT
TEXT IN
PICTURE ON OUT
PICTURE ON IN
Teletext Register 6 (TXT6) - WRITE only
See TXT5
Teletext Register 7 (TXT7) - WRITE only
STATUS ROW TOP
CURSOR ON
REVEAL
TOP/BOTTOM
DOUBLE HEIGHT
BOX ON 24
BOX ON 1-23
BOX ON 0
TV microcontroller with full screen
On Screen Display (OSD)
REGISTER
VSYNC in first half of the line (logic 0) or second half of the line (logic 1) at start of even field
HSYNC input positive-going (logic 0) or negative-going (logic 1)
VSYNC input positive-going (logic 0) or negative-going (logic 1)
page request data
western languages selected (logic 0) or Eastern languages selected (logic 1)
enable meshing of area with black background (logic 1)
enable meshing of area with other background colours (logic 1)
set black background to transparent i.e. video is displayed (logic 1)
enable south-east shadowing (logic 1)
background colour displayed outside teletext boxes (logic 1)
background colour displayed inside teletext boxes (logic 1)
COR output active outside teletext boxes (logic 1)
COR output active inside teletext boxes (logic 1)
text displayed outside teletext boxes (logic 1)
text displayed inside teletext boxes (logic 1)
video picture displayed outside teletext boxes (logic 1)
video picture displayed inside teletext boxes (logic 1)
this register has the same meaning as TXT5 but is only invoked if either newsflash (C5) or
subtitle (C6) bit in row 25 of the basic page memory is set
display row 24 below (logic 0) or above (logic 1) teletext page
display cursor at location pointed to by TXT9 and TXT10 (logic 1)
display characters in areas with the conceal attribute set (logic 1)
display rows 0 to 11 (logic 0) or 12 to 23 (logic 1) when the double height bit is set
display each character as twice normal height (logic 1)
enable teletext boxes in memory row 24 (logic 1)
enable teletext boxes in memory rows 1 to 23 (logic 1)
enable teletext boxes in memory row 0 (logic 1)
19
FUNCTION
Preliminary specification
SAA5288