
Extension Registers
14-37
`efmp69030 Databook
Revision 1.3 11/24/99
XRA8
Cursor 2 Control Register
read/write at I/O address 3D7h with index at I/O address 3D6h set to A8h
shared by both pipelines A and B
7
Cursor 2 Blink Enable
0: Disables blinking. This is the default after reset.
1: Enables blinking. Blinking rate set in register FR19.
6
Cursor 2 Vertical Stretching Enable
0: Disables vertical stretching for cursor 2. This is the default after reset.
1: Enables vertical stretching for cursor 2.
Note: Just as is the case with the vertical stretching for the main display image, vertical
stretching for cursor 2 applies only to flat panel displays.
5
Cursor 2 Horizontal Stretching Enable
0: Disables horizontal stretching for cursor 2. This is the default after reset.
1: Enables horizontal stretching for cursor 2.
Note: Just as is the case with the horizontal stretching for the main display image,
horizontal stretching for cursor 2 applies only to flat panel displays.
4
Cursor 2 Coordinate System Origin Select
0: Selects the outermost upper left-hand corner of the screen border as the origin for the
coordinate system used to position cursor 2. This is the default after reset.
1: Selects the upper left-hand corner of the active display area as the origin for the
coordinate system used to position cursor 2.
3
Cursor 2 Vertical Extension Enable
0: Disables the vertical extension feature for cursor 2. This is the default after reset.
1: Enables the vertical extension feature for cursor 2, thereby permitting the height of
cursor 2 may be specified independently of its mode selection through the use of the Cursor
2 Vertical Extension Register (XRA9).
2-0
Cursor 2 Mode Select
These three bits select the mode for cursor 2. See appendix F for more details concerning
the cursor modes.
76543
210
A
&
B
Cursor 2
Blink En
(0)
Cursor 2
V Stretch
(0)
Cursor 2
H Stretch
(0)
Coordinate
Origin Sel
(0)
Vertical
Extension
(0)
Cursor 2 Mode Select
(000)
Bits
2 1 0
Cursor Mode
0 0 0
Cursor 2 is disabled. This is the default after reset.
0 0 1
32x32 2bpp AND/XOR 2-plane mode
0 1 0
128x128 1bpp 2-color mode
0 1 1
128x128 1bpp 1-color and transparency mode
1 0 0
64x64 2bpp 3-color and transparency mode
1 0 1
64x64 2bpp AND/XOR 2-plane mode
1 1 0
64x64 2bpp 4-color mode
1 1 1
Reserved