SDA5523 Micronas Semiconductor, SDA5523 Datasheet - Page 87

• Manufacturer Part Number: SDA5523
• Description: SDA55xx TVText Pro
• Manufacturer: Micronas Semiconductor

DATA SHEET
To decide the levels of COR and BLANK for BOX0 two
global parameters are used.
Table 2–63: COR/BLANK polarity of BOX0
For characters which are using subCLUT0 there are
two types of transparency which can be defined.
Which of these two box transparencies is used is
defined character individual inside the bit BOX in CDW
(character display word; see also Section 2.13.4. on
page 70).
Transparency definition for characters for which BOX is
set to 1 and which are using subCLUT0.
Table 2–64: Transparency mode of BOX1
Micronas
COR_BOX0
0
0
1
1
See also Section 2.13.5. on page 75-Global Display Word (GDW)
GLBT2_BOX1
X
0
0
0
1
1
1
See also Section 2.13.5. on page 75-Global Display Word (GDW)
BLA_BOX0
0
1
0
1
GLBT1_BOX1
0
0
1
1
0
1
1
Description
Box transparency levels of COR and BLANK are overruled by:
COR = 0; BLANK = 0
Box transparency levels of COR and BLANK are overruled by:
COR = 0; BLANK = 1
Box transparency levels of COR and BLANK are overruled by:
COR = 1; BLANK = 0
Box transparency levels of COR and BLANK are overruled by:
COR = 1; BLANK = 1
GLBT0_BOX1
0
1
0
1
1
0
1
Sept. 10, 2004; 6251-556-3DS
Description
Box transparency is disabled for BOX1.
Box transparency is enabled for BOX1 for following pixels:
Foreground pixels of ROM characters
Box transparency is enabled for BOX1 for following pixels:
Foreground pixels of 1-bit DRCS characters
Box transparency is enabled for BOX1 for following pixels:
Foreground pixels of ROM characters
Foreground pixels of 1-bit DRCS characters
Box transparency is enabled for BOX1 for following pixels:
Background pixels of ROM characters
Box transparency is enabled for BOX1 for following pixels:
Background pixels of 1-bit DRCS characters
Box transparency is enabled for BOX1 for following pixels:
Background pixels of ROM characters
Background pixels of 1-bit DRCS characters
SDA 55xx
87