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ADV7182 View Datasheet(PDF) - Analog Devices

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ADV7182 Datasheet PDF : 96 Pages
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Data Sheet
ACE_LUMA_GAIN[4:0], User Sub Map 2, Address 0x83[4:0]
A control to set the auto-contrast level for the luma channel when
ACE_ENABLE is 1.
Table 63. ACE_LUMA_GAIN Function
ACE_LUMA_GAIN[4:0] Description
00000
Set ACE luma auto-contrast level to
minimum value
01101 (default)
Set ACE luma auto-contrast level to
default value
11111
Set ACE luma auto-contrast level to
maximum value
ACE_RESPONSE_SPEED[3:0], User Sub Map 2,
Address 0x85[7:4]
Sets the reaction time of the ACE function.
Table 64. ACE_RESPONSE_SPEED Function
ACE_ RESPONSE_SPEED[3:0] Description
0000
Set speed of ACE response to
slowest value
1111 (default)
Set speed of ACE response to
fastest value
ACE_CHROMA_GAIN[3:0], User Sub Map 2,
Address 0x84[3:0]
This control sets the color-saturation level for the color channels
when ACE_ENABLE is 1.
Table 65. ACE_CHROMA_GAIN Function
ACE_CHROMA_GAIN[3:0] Description
0000
Set ACE color auto-saturation level
to minimum value
1000 (default)
Set ACE color auto-saturation level
1111
to default value
Set ACE color auto-saturation level
to maximum value
ADV7182
ACE_CHROMA_MAX[3:0], User Sub Map 2,
Address 0x84[7:4]
This control sets a maximum threshold value that clips the
chroma gain regardless of the ACE_CHROMA_GAIN[3:0]
settings.
Table 66. ACE_CHROMA_MAX Function
ACE_CHROMA_MAX[3:0] Description
0000
Set maximum threshold for ACE
color auto-saturation level to
minimum value
1000 (default)
Set maximum threshold for ACE
color auto-saturation level to
default value
1111
Set maximum threshold for ACE
color auto-saturation level to
maximum value
ACE_GAMMA_GAIN[3:0], User Sub Map 2,
Address 0x85[3:0]
This control provides further contrast enhancement to the luma
and chroma gain controls and is particularly effective in the darker
areas of an image.
Table 67. ACE_GAMMA_GAIN[3:0] Function
ACE_GAMMA_GAIN[3:0] Description
0000
Set further contrast enhancement
to minimum value
1000 (default)
Set further contrast enhancements
to default value
1111
Set further contrast enhancement
to maximum value
DITHER FUNCTION
The dither function converts the digital output of the ADV7182
from 8-bit pixel data down to 6-bit pixel data. This function makes
it easier for the ADV7182 to communicate with some LCD panels.
The dither function is turned off by default. It is activated by the
BR_DITHER_MODE bit.
BR_DITHER_MODE, User Sub Map 2, Address 0x92[0]
Table 68. BR_DITHER_MODE Function
BR_DITHER_MODE Description
0 (default)
8-bit to 6-bit down dither disabled
1
8-bit to 6-bit down dither enabled
Rev. A | Page 39 of 96
 

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