F65510

Manufacturer Part NumberF65510
DescriptionControllers, Flat Panel VGA Controller
ManufacturerIntel Corporation
F65510 datasheet
 
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®
SMARTMAP™ CONTROL REGISTER (XR61)
Read/Write at I/O Address 3B7h/3D7h
Index 61h
D7 D6 D5 D4 D3 D2 D1 D0
SmartMap™ Enable
SmartMap™ Threshold
SmartMap™ Saturation
Text Enhancement
Text Video Output Polarity
This register is used in text modes only.
0
SmartMap Enable
0 Disable SmartMap, use color lookup
table and use internal palette if
enabled (XR06 bit-2 = 1).
1 Enable SmartMap, bypass both color
lookup table and internal RAMDAC
palette in flat panel text mode.
Although color lookup table is
bypassed, translation of 4 bits/pixel
data to 6 bits/pixel data is still
performed depending on AR10 bit-1
(monochrome / color display) as
follows:
Output
AR10 bit-1 = 0 AR10 bit-1 = 1
Out0
In0
Out1
In1
Out2
In2
Out3
In3
Out4
In3
Out5
In3
Revision 0.7
4-1
5
6
7
In0
In1
In2
In0+In1+In2+In3
In3
In3
101
Extension Registers
SmartMap Threshold
These bits are used only in flat panel text
mode when SmartMap is enabled (bit-0 =
1). They define the minimum difference
between the foreground and background
colors. If the difference is less than this
threshold, the colors are separated by
adding and subtracting the shift values
(XR62) to the foreground and background
colors.
However, if the foreground and
background color values are the same, then
the color values are not adjusted.
SmartMap Saturation
This bit is used only in flat panel text mode
when SmartMap is enabled (bit-0 = 1). It
selects the clamping level after the color
addition/subtraction.
0 The color result is clamped to the
maximum and minimum values (0Fh
and 00h respectively)
1 The color result is computed modulo
16 (no clamping)
Text Enhancement
This bit is used only in flat panel text mode.
0 Normal text
1 Text attribute 07h and 0Fh are
reversed to maximize the brightness
of the normal DOS prompt
Text Video Output Polarity (TVP)
This bit is effective for flat panel text mode
only.
0 Normal polarity
1 Inverted polarity
Note: Graphics video output polarity is
controlled by XR63 bit-7 (GVP).
Preliminary 65510