EVAL-ADV7181BEB Analog Devices Inc, EVAL-ADV7181BEB Datasheet - Page 74
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EVAL-ADV7181BEB
Manufacturer Part Number
EVAL-ADV7181BEB
Description
BOARD EVALUATION FOR ADV7181
Manufacturer
Analog Devices Inc
Type
Video Decoderr
Datasheet
1.ADV7181BCP.pdf
(100 pages)
Specifications of EVAL-ADV7181BEB
Contents
Evaluation Board
For Use With/related Products
ADV7181
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
- Current page: 74 of 100
- Download datasheet (976Kb)
ADV7181B
Subaddress
0x07
0x08
0x09
0x0A
0x0B
0x0C
0x0D
0x0E
Register
Autodetect
nable
Contrast
Register
Reserved
Brightness
Register
Hue
Register
Default
Value Y
Default
Value C
ADI
Control
E
Bit Description
AD_PAL_EN. PAL B/G/I/H autodetect
enable.
AD_NTSC_EN. NTSC autodetect
enable.
AD_PALM_EN. PAL M autodetect
enable.
AD_PALN_EN. PAL N autodetect
enable.
AD_P60_EN. PAL60 autodetect
enable.
AD_N443_EN. NTSC443 autodetect
enable.
AD_SECAM_EN. SECAM autodetect
enable.
AD_SEC525_EN. SECAM 525
autodetect enable.
CON[7:0]. Contrast adjust. This is the
user control for contrast adjustment.
Reserved.
BRI[7:0]. This register controls the
brightness of the video signal.
HUE[7:0]. This register contains the
value for the color hue adjustment.
DEF_VAL_EN. Default value enable.
DEF_VAL_AUTO_EN. Default value.
DEF_Y[5:0]. Default value Y. This
register holds the Y default value.
DEF_C[7:0]. Default value C. The Cr
and Cb default values are defined in
this register.
Reserved.
SUB_USR_EN. Enables the user to
access the Interrupt map.
Reserved.
Rev. B | Page 74 of 100
7 6
0
1
1 0
1 0
0 0
0 0
0 0
0 1
0 0
0
1
5
0
1
0
0
0
0
1
1
0
1
4 3
0
1
0 0
0 0
0 0
0 0
1 0
1 1
0 0
Bits
0
1
2
0
1
0
0
0
0
1
1
0
1
0
1
0
0
0
0
0
1
0
0
0
0
1
0
0
0
0
0
1
0
0
Comments
Disable
Enable
Disable
Enable
Disable
Enable
Disable
Enable
Disable
Enable
Disable
Enable
Disable
Enable
Disable
Enable
Luma gain = 1
Free-run mode dependent
on DEF_VAL_AUTO_EN
Force free-run mode on
and output blue screen
Disable free-run mode
Enable automatic free-run
mode (blue screen)
Y[7:0] = {DEF_Y[5:0],0, 0}
Cr[7:0] = DEF_C[7:4],0, 0, 0, 0}
Cb[7:0] = DEF_C[3:0], 0, 0, 0, 0}
Set as default
Access user reg map
Access interrupt reg map
Set as default
Notes
0x00 Gain = 0;
0x80 Gain = 1;
0xFF Gain = 2.
0x00 = 0IRE;
0x7F = +100IRE;
0x80 = –100IRE.
Hue range =
–90° to +90°.
When lock is lost,
free-run mode can
be enabled to
output stable
timing, clock, and a
set color.
Default Y value
output in free-run
mode.
Default Cb/Cr value
output in free-run
mode. Default
values give blue
screen output.
See Figure 37.
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