SDA55XX Datasheet, PDF (186/230 Pages) Infineon Technologies AG – Preliminary & Confidential

SDA 55xx
Preliminary & Confidential
Display
18.4.2 Cursor
The 2-bit color vector matrix of the cursor is stored in the XRAM. A
programmable pointer is used, so that the matrix can be stored at any location
inside the XRAM (see also 18.6.3).
The cursor matrix has the same resolution as the character matrix (see also
18.4.8).
If Global Display Double Height (see also ^18.4.4) is set to double height, the rows
which are displayed in double height the cursor is also displayed in double
height. For rows which are displayed in normal height, the cursor is also
displayed in normal height. If cursor is displayed over two rows and one of these
rows is displayed in double height, and the other is displayed in normal height,
cursor is also partly displayed in double height and partly in normal height.
Cursor-Pixels which are shifted to a non-visible row are also not displayed on
the screen.
The cursor can be shifted in horizontal and vertical direction pixel by pixel all
over the character display area.
CURSEN
0
1
Description
Cursor mode disabled
Cursor mode enabled
see also 18.4 / Global Display Word (GDW)
The display position of the cursor is determined by a display column value, a
display row value and on pixel level by a pixel shift in horizontal and vertical
direction.
Cursor can not be shifted more than one character height and one character
width on pixel level. Cursor is clipped at border. In full screen double height
mode (see also 18.4.4) cursor is also displayed in double height.
The pixel shift value is always related to a south-east shift:
The pixel shift is determined by the following parameters:
CURHOR3
0
0
0
0
CURHOR2
0
0
0
0
CURHOR1
0
0
1
1
CURHOR0
0
1
0
1
Description
Horizontal shift of 0
Horizontal shift of 1
Horizontal shift of 2
Horizontal shift of 3
Semiconductor Group
186
User’s Manual July 99