adv7180 Analog Devices, Inc., adv7180 Datasheet - Page 82

• Manufacturer Part Number: adv7180
• Description: 10-bit, 4 X Oversampling Sdtv Video Decoder
• Manufacturer: Analog Devices, Inc.

ADV7180
Subaddress
0x07
0x08
0x09
0x0A
0x0B
0x0C
0x0D
0x0E
Register
Autodetect
Enable
Contrast
Register
Reserved
Brightness
Register
Hue Register
Default Value Y
Default Value C
ADI Control
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. PAL 60
autodetect enable.
AD_N443_EN.
NTSC 4.43 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
user to access the
interrupt/VDP register
map.
Reserved.
7
0
1
1
1
0
0
0
0
0
(Shading Indicates Default State)
6
0
1
0
0
0
0
0
1
0
Rev. B | Page 82 of 112
5
0
1
0
0
0
0
1
1
0
1
4
0
1
0
0
0
0
1
1
0
Bits
3
0
1
0
0
0
0
0
1
0
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
LQFP-64
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 main register space
Access interrupt/VDP register space
Set as default
Comments
LFCSP-40
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 50