HMP8116 Datasheet, PDF (33/43 Pages) Intersil Corporation – NTSC/PAL Video Decoder

HMP8116
TABLE 31. BRIGHTNESS REGISTER
BIT
NO.
FUNCTION
SUB ADDRESS = 18_H
DESCRIPTION
RESET
STATE
7
Reserved
6-0
Brightness
Adjust
These bits control the brightness. They may have a value of +63 (“011 1111”) to -64 (“100
0000”), with positive values increasing brightness. A value of 0 (“000 0000”) has no effect
on the data.
0_B
0000000_B
TABLE 32. CONTRAST REGISTER
BIT
NO.
FUNCTION
SUB ADDRESS = 19_H
DESCRIPTION
7-0
Contrast
Adjust
These bits control the contrast. They may have a value of 0x (“0000 0000”) to 1.992x
(“1111 1111”). A value of 1x (“1000 0000”) has no effect on the data.
RESET
STATE
80_H
TABLE 33. HUE REGISTER
BIT
NO.
FUNCTION
SUB ADDRESS = 1A_H
DESCRIPTION
RESET
STATE
7-0
Hue
Adjust
These bits control the color hue. They may have a value of +30 degrees (“0111 1111”) to
00_H
-30 degrees (“1111 1111”). A value of 0 degrees (“0000 0000”) has no effect on the color
data.
TABLE 34. SATURATION REGISTER
BIT
NO.
FUNCTION
SUB ADDRESS = 1B_H
DESCRIPTION
RESET
STATE
7-0
Saturation
Adjust
These bits control the color saturation. They may have a value of 0x (“0000 0000”) to
80_H
1.992x (“1111 1111”). A value of 1x (“1000 0000”) has no effect on the color data. A value
of 0x (“0000 0000”) disables the color information.
TABLE 35. COLOR GAIN REGISTER
BIT
NO.
FUNCTION
SUB ADDRESS = 1C_H
DESCRIPTION
RESET
STATE
7-0
Color Gain
Adjust
These bits control the amount of gain control for the color difference (CbCr) signals. They
40_H
may have a value of 0.5x (“0010 0000”) to 3.98x (“1111 1111”). A value of 1x (“0100
0000”) has no effect on the data. This register is ignored unless the color gain control
mode selection is “fixed gain control”.
TABLE 36. VIDEO GAIN ADJUST REGISTER
BIT
NO.
FUNCTION
SUB ADDRESS = 1D_H
DESCRIPTION
RESET
STATE
7-0
Video Gain
Adjust
These bits control the amount of gain control for the video signals. They may have a value
80_H
of 0.5x (“1100 1110”) to 1.99x (“0011 0011”). A value of 1x (“0110 0111”) has no effect.
Refer to the look-up table following register definitions for other values to load for different
gains. This register is ignored unless the video gain control mode selection is “fixed gain
control”.
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