SDA5523 Micronas Semiconductor, SDA5523 Datasheet - Page 80

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

SDA 55xx
Table 2–54: Horizontal cursor pixel offset within character matrix
Table 2–55: Vertical cursor pixel offset within character matrix
The character position of the cursor is determined by
the parameters shown in Table 2–56 and Table 2–57.
Character position and pixel position have to be
changed in parallel. Otherwise it may appear that the
character position already has been changed to a new
position, but the pixel position is still set to the former
value. This may cause a “jumping” cursor.
To avoid this “jumping” cursor there is a EN_LD_GDW
(enable load GDW) bit in the SFR bank. If this bit is set
to ‘0’ the global display word can be changed without
any effect on the screen and in consequence the cur-
sor position can be changed without any effect on the
screen. To bring the effect to character display area,
the LOAD bit has to be set to 1 for at least one V
period (approximately 50 ms).
80
CURHOR3
0
0
0
0
…
1
1
See also Section 2.13.5. on page 75-Global Display Word (GDW)
CURVER3
0
0
0
0
…
1
1
See also Section 2.13.5. on page 75-Global Display Word (GDW)
CURHOR2
0
0
0
0
0
1
CURVER2
0
0
0
0
1
1
CURHOR1
0
0
1
1
1
X
CURVER1
0
0
1
1
1
1
Sept. 10, 2004; 6251-556-3DS
CURHOR0
0
1
0
1
1
X
CURVER0
0
1
0
1
0
1
Description
Horizontal shift of 0
Horizontal shift of 1
Horizontal shift of 2
Horizontal shift of 3
…
Horizontal shift of 11
Not allowed
Description
Vertical shift of 0
Vertical shift of 1
Vertical shift of 2
Vertical shift of 3
…
Vertical shift of 14
Vertical shift of 15
DATA SHEET
Micronas