B69000 Asiliant Technologies, B69000 Datasheet - Page 330

• Manufacturer Part Number: B69000
• Manufacturer: Asiliant Technologies

Specifications of B69000

• Lead Free Status / Rohs Status: Supplier Unconfirmed

The meaning of the single bit in a given pixel position in the XOR plane changes depending on the bit in the
corresponding position in the AND plane. If the value of the bit for a given pixel position in the AND plane
is 0, then part of the cursor will be displayed at that pixel position and the value of the corresponding bit in
the XOR plane selects one of the two available cursor colors to be displayed there. Otherwise if the value
of the bit in the AND plane is 1, then that pixel position of the cursor will become transparent, allowing a
pixel of the main display image behind the cursor to show through and the value of the corresponding bit in
the XOR plane chooses whether or not the color of the pixel of the main display image will be inverted.
Table D-3 summarizes this.
&+,36
69000 Databook
AND Plane
Pixel Data
0
0
1
1
32x32x2bpp and 64x64x2bpp AND/XOR Pixel Plane Modes
XOR Plane
Pixel Data
Offset
FFCh
00Ch
3FCh
FF8h
0
1
0
1
64x64x2bpp AND/XOR Pixel Plane Mode
000h
004h
008h
010h
014h
3F0h
3F4h
3F8h
400h
404h
Hardware Cursor and Pop Up Window
...
...
Subject to Change Without Notice
Table D-2: Memory Organization
Cursor color 0
Cursor color 1
Transparent. The pixel of the main display image behind
cursor shows through
Transparent, but inverted. The pixel of the main display
image behind cursor shows through with inverted color
Plane
Color Displayed at the Corresponding Pixel Position
AND
AND
XOR
XOR
AND
AND
AND
AND
XOR
XOR
AND
AND
XOR
XOR
Table D-3: Pixel Data
...
...
63-32 on line 63 of pattern 0
63-32 on line 63 of pattern 0
63-32 on line 63 of pattern 3
63-32 on line 0 of pattern 0
63-32 on line 0 of pattern 0
63-32 on line 1 of pattern 0
31-0 on line 63 of pattern 0
31-0 on line 63 of pattern 0
63-32 on line 0 of pattern 1
31-0 on line 63 of pattern 3
31-0 on line 0 of pattern 0
31-0 on line 0 of pattern 0
31-0 on line 1 of pattern 0
31-0 on line 0 of pattern 1
Pixels
...
...
Revision 1.3 8/31/98
D-5