Specifications

Color LCD Controller (CLCDC)

Table 5-2 lists the register bit assignments.

Table 5-2 ClcdCrsrCtrl Register bit assignments

Bit Name Function

[31:6] - Reserved, read undefined, do not modify.

[5:4] CrsrNumber[1:0] Cursor Image number.

This field provides an offset into the cursor image buffer, to enable one of four 32x32

cursors to be addressed. The images each occupy one quarter of the image memory, with

Cursor0 from location 0, followed by Cursor1 from address

0x100

, Cursor2 from

0x200

and

Cursor3 from

0x300

If the cursor size is 64x64 this field has no effect because there is only space for one cursor

of this size in the image buffer.

If the cursor size is 32x32:

11 = Cursor3

10 = Cursor2

01 = Cursor1

00 = Cursor0.

Frame Synchronization:

Similar synchronization rules apply to the cursor number as apply to the cursor coordinates:

• if CrsrFramesync is 1, the displayed cursor image is only changed during the vertical

frame blanking period.

• if CrsrFrameSync is 0, the cursor image index is changed immediately, even if the

cursor is currently being scanned.

[3:1] - Reserved, read undefined, do not modify.

[0] CrsrOn 1 = Cursor is displayed.

0 = Cursor not displayed.