SDA5523 Micronas Semiconductor, SDA5523 Datasheet - Page 95

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

DATA SHEET
2.13.7.7. Shadowing
If shadowing is enabled the ROM characters and 1-bit
DRCS characters of the characters are displayed by
west shadow or east shadow. The color vector of the
shadow is defined by software. The shadow color vec-
tor has a width of 6 bit.
The shadow feature is enabled by the bit SHEN.
Table 2–71: Shadow settings
There are two options for shadowing, as shown in
Fig. 2–72
Table 2–72: Shadow options
Table 2–73: Shadow color vector settings
Micronas
SHEN
0
1
See also Section 2.13.5. on page 75-Global Display
Word (GDW)
SHEAWE
0
1
See also Section 2.13.5. on page 75 / Global Dis-
play Word (GDW)
SHCOL5
0
0
…
1
1
See also Section 2.13.5. on page 75-Global Display Word (GDW)
.
Description
Shadow disabled.
Shadow for ROM characters and 1-bit
DRCS characters.
Description
East shadowing.
West shadowing.
SHCOL4
0
0
1
1
SHCOL3
0
0
1
1
SHCOL2
0
0
1
1
Sept. 10, 2004; 6251-556-3DS
SHCOL1
0
0
1
1
Example for a “A” displayed in shadow mode:
Within one character matrix shadowing is only pro-
cessed for the pixels which are belonging to that char-
acter matrix. Pixels of one character matrix can not
generate a shadow inside a neighbored character
matrix.
Fig. 2–14: Processing of Shadowing
CLUT entries from 0-63 can be used as a shadow
color vector as shown in Table 2–73.
no shadow:
shadowed pixel
background pixel
foreground pixel
SHCOL0
0
1
0
1
east shadow:
Description
Defines a color vector for
shadowing
See also
Section 2.13.7.5. on
page 88
SDA 55xx
west shadow:
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