SAA5531 Philips Semiconductors, SAA5531 Datasheet - Page 26

• Manufacturer Part Number: SAA5531
• Description: Enhanced TV microcontrollers with On-Screen Display OSD
• Manufacturer: Philips Semiconductors

Philips Semiconductors
2000 Feb 23
Text Register 9 (TXT9)
CURSOR FREEZE
CLEAR MEMORY
A0
R4 to R0
Text Register 10 (TXT10)
C5 to C0
Text Register 11 (TXT11)
D7 to D0
Text Register 12 (TXT12)
625/525 SYNC
SPANISH
ROM VER3 to ROM VER0
VIDEO SIGNAL QUALITY
Text Register 13 (TXT13)
VPS RECEIVED
PAGE CLEARING
525 DISPLAY
525 TEXT
625 TEXT
PKT 8/30
FASTEXT
Text Register 14 (TXT14)
PAGE3 to PAGE0
Text Register 15 (TXT15)
BLOCK3 to BLOCK0
Text Register 17 (TXT17)
FORCE ACQ1 to FORCE ACQ0
FORCE DISP1 to FORCE DISP0
Enhanced TV microcontrollers with
On-Screen Display (OSD)
(3)
(4)
BIT
(1)
lock cursor at current position (logic 1)
clear memory block pointed to by TXT15 (logic 1)
access extension packet memory (logic 1)
current memory row value
current memory column value
data value written or read from memory location defined by TXT9, TXT10 and
TXT15
525-line CVBS signal is being received (logic 1)
Spanish character set present (logic 1)
mask programmable identification for character set
acquisition can be synchronized to CVBS (logic 1)
VPS data (logic 1)
software or power-on page clear in progress (logic 1)
525-line synchronisation for display (logic 1)
525-line WST being received (logic 1)
625-line WST being received (logic 1)
packet 8/30/x(625) or packet 4/30/x(525) data detected (logic 1)
packet x/27 data detected (logic 1)
current display page
current micro block to be accessed by TXT9, TXT10 and TXT11
FORCE ACQ<1:0>:
FORCE DISP<1:0>:
00 = automatic selection
01 = force 525 timing, force 525 teletext standard
10 = force 625 timing, force 625 teletext standard
11 = force 625 timing, force 525 teletext standard
00 = automatic selection
01 = force display to 525 mode (9 lines per row)
10 = force display to 625 mode (10 lines per row)
11 = not valid (default to 625)
26
FUNCTION
Preliminary specification
SAA55xx