Intel E3815 FH8065301567411 Datenbogen
Produktcode
FH8065301567411
Intel
®
Atom™ Processor E3800 Product Family
Datasheet
977
14.11.311 SPBGAMC5—Offset 722E0h
Sprite B Gamma Correction Registers
Access Method
Default: 00C0C0C0h
26:16
0b
RW
SATURATION_AND_HUE_SIN_SH_SIN:
This 11-bit signed fixed-point number is in
2 s compliment (s3i.7f) format with the MSB as the sign, next 3 MSBs as the integer
value and the last 7 LSBs as the fraction value. This field can be used in two modes.
When full range YUV data is operated on, this field contains the saturation value. When
the range-limited YCbCr data is used, software should program this field with the
product of the saturation multiplier value multiplied by the CbCr range scale factor
(=128/112).
Similar to the contrast field, there is no limit for saturation reduction saturation = 0
means all pixels become the same value. However, increasing contrast can only be
increased by a factor less than 8. For example, the largest contrast with value of 0x7.7F
can bring input range [0, 32] to a full display color range of [0, 255].
Bypassing Hue, even for source data in RGB format, is accomplished by programming
this field to 0.0.
15:10
0b
RW
RESERVED_1:
Reserved.
9:0
001000000
0b
RW
SATURATION_AND_HUE_COS_SH_COS:
This unsigned fixed-point number is in
3i.7f format with the first 3 MSBs be the integer value and the last 7 LSBs be the
fraction value. This field can be used in two modes. When full range YUV data is
operated on, this field contains the saturation value. When the range-limited YCbCr data
is used, software should program this field with the product of the saturation multiplier
value multiplied by the CbCr range scale factor (=128/112).
Similar to the contrast field, there is no limit for saturation reduction saturation = 0
means all pixels become the same value. However, increasing contrast can only be
increased by a factor less than 8. For example, the largest contrast with value of 0x7.7F
can bring input range [0, 32] to a full display color range of [0, 255].
Bypassing Saturation, even for source data in RGB format, is accomplished by
programming this field to 1.0.
Bit
Range
Default &
Access
Field Name (ID): Description
Type:
Memory Mapped I/O Register
(Size: 32 bits)
Offset:
GTTMMADR_LSB Type:
PCI Configuration Register (Size: 32
bits)
GTTMMADR_LSB Reference:
GTTMMADR_LSB Reference:
[B:0, D:2, F:0] + 10h
31
28
24
20
16
12
8
4
0
0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0
RE
SER
V
ED
RED
_
V
_
C
R
GR
E
E
N
_
Y
BLUE_U_C
B
Bit
Range
Default &
Access
Field Name (ID): Description
31:24
0b
RW
RESERVED:
reserved
23:16
11000000b
RW
RED_V_CR:
gamma correction mapping Red to CR
15:8
11000000b
RW
GREEN_Y:
gamma correction mapping green to Y