PCA84C646P PHILIPS [NXP Semiconductors], PCA84C646P Datasheet - Page 42

• Manufacturer Part Number: PCA84C646P
• Description: Microcontrollers for TV tuning control and OSD applications
• Manufacturer: PHILIPS [NXP Semiconductors]

Philips Semiconductors
1995 Jun 15
handbook, full pagewidth
Microcontrollers for TV tuning
control and OSD applications
SP code is a transparent pattern with the background colour of the character it intends to change or keep.
CR code is always a transparent pattern with the video signal as its background.
SP code can change the background colour of itself and the character/word next to it (in this example: from cyan to yellow).
Fig.33 SP and CR codes in Mode 2: Box shadowing mode.
Red colour
Blue colour
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
0 1 2 3 4 5 6 7 8 910 11 0 1 2 3 4 5 6 7 8 910 11
(background) yellow colour
(background) cyan colour
SP code
42
0 1 2 3 4 5 6 7 8 910 11 0 1 2 3 4 5 6 7 8 910 11
CR code
PCA84C646; PCA84C846
MED229
Preliminary specification