ADV7162 Просмотр технического описания (PDF) - Analog Devices
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производитель
ADV7162 Datasheet PDF : 44 Pages
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ADV7160/ADV7162
R4
R7
R7
R3
R6
R6
R2
R5
R5
R4
R1
R4
R3
R0
R3
R2
G5
R2
R1
G4
R1
R0
G3
R0
0
0
0
R4
R3 5
R2
R1
R0
G2
G7
G7
G6
G1
G6
G5
G0
G5
G4
B4
G4
G3
B3
G3
G2
B2
G2
G1
B1
G1
B0
G0
G0
0
0
G5
G4
G3 5
G2
G1
G0
x
B7
x
B6
x
x
B5
x
x
x
B4
x
B3
x
x
B2
x
x
B1
x
x
x
B0
x
0
0
0
B4
B3 5
B2
B1
B0
PIXEL
INPUT
DATA
PIN
ASSIGN-
MENTS
DATA
DATA
LATCHED INTERNALLY
TO
SHIFTED
PIXEL TO 5 OR 6 LSBs
PORT
256 x 10 RAM
(RED LUT)
LOCATION
"31"
LOCATION
"0"
10
TO
RED
DAC
256 x 10 RAM
(GREEN LUT)
LOCATION
"63"
LOCATION
"0"
10
TO
GREEN
DAC
256 x 10 RAM
(BLUE LUT)
LOCATION
"31"
LOCATION
"0"
DATA LATCHES
FIRST 32 OR 64
LOCATIONS
OF RAM
10
TO
BLUE
DAC
x
R7
x
R4
R6
R6
R3
R5
R5
R4
R2
R4
R3
R1
R3
R2
R0
R2
R1
G4
R1
R0
G3
R0
0
0
0
R4
R3 5
R2
R1
R0
G2
G7
G7
G1
G6
G6
G0
G5
G5
G4
B4
G4
G3
B3
G3
G2
B2
G2
G1
B1
G1
B0
G0
G0
0
0
0
G4
G3 5
G2
G1
G0
x
B7
x
x
B6
x
x
B5
x
B4
x
x
B3
x
x
B2
x
x
B1
x
x
x
B0
x
0
0
0
B4
B3 5
B2
B1
B0
PIXEL
INPUT
DATA
PIN
ASSIGN-
MENTS
DATA
LATCHED
TO
PIXEL
PORT
DATA
INTERNALLY
SHIFTED
TO 5 LSBs
256 x 10 RAM
(RED LUT)
LOCATION
"31"
LOCATION
"0"
10
TO
RED
DAC
256 x 10 RAM
(GREEN LUT)
LOCATION
"31"
LOCATION
"0"
10
TO
GREEN
DAC
256 x 10 RAM
(BLUE LUT)
LOCATION
"31"
LOCATION
"0"
DATA LATCHES
FIRST 32
LOCATIONS
OF RAM
10
TO
BLUE
DAC
Figure 26. 16-Bit True-Color Mapping using R7–R0
and G7–G0
R4
R7
R4
R3
R6
R3
R2
R5
R2
R4
R1
R1
R3
R0
R0
x
R2
x
R1
x
x
x
R0
x
0
0
0
R4
R3 5
R2
R1
R0
G4
G7
G4
G3
G6
G3
G2
G5
G2
G1
G4
G1
G3
G0
G0
x
G2
x
x
G1
x
x
G0
x
0
0
0
G4
G3 5
G2
G1
G0
B4
B7
B4
B3
B6
B3
B2
B5
B2
B4
B1
B1
B3
B0
B0
B2
x
x
B1
x
x
x
B0
x
0
0
0
B4
B3 5
B2
B1
B0
PIXEL
INPUT
DATA
PIN
ASSIGN-
MENTS
DATA
LATCHED
TO
PIXEL
PORT
DATA
INTERNALLY
SHIFTED
TO 5 LSBs
256 x 10 RAM
(RED LUT)
LOCATION
"31"
LOCATION
"0"
10
TO
RED
DAC
256 x 10 RAM
(GREEN LUT)
LOCATION
"31"
LOCATION
"0"
10
TO
GREEN
DAC
256 x 10 RAM
(BLUE LUT)
LOCATION
"31"
LOCATION
"0"
DATA LATCHES
FIRST 32
LOCATIONS
OF RAM
10
TO
BLUE
DAC
Figure 27. 15-Bit True Color Mapping using R7–R3, G7–G3
and B7–B3
Figure 28. 15-Bit True-Color Mapping using R6–R0
and G7–G0
The part has two modes of operation for 15-bit True Color. In
the first mode, data is input to the device over the red, green
and blue channel (R7–R3, G7–G3 and B7–B3) and is internally
mapped to Locations 0 to 31 of the Look-Up Table (LUT)
according to Figure 27.
In the second mode, data is input to the device over just two of
the color ports, red and green (R7–R0 and G7–G0) and is inter-
nally mapped to LUT Locations 0 to 31 according to Figure 30.
(Note: Data on unused pixel inputs is ignored.)
There are three modes of operation for 8-bit Pseudo Color.
Each mode maps the input pixel data differently. Data can be
input into one of the three color channels, R7–R0 or G7–G0 or
B7–B0.
In 24-bit Palette Bypass Mode, the red, blue and green color
channels bypass the Pixel Mask and the Color Palette. Each 8-
bit color channel is mapped onto the 8 MSBs of the correspond-
ing 10-bit DAC input. The two LSBs on each DAC are zeros.
The Bypass Mode can be selected in two ways, by using CR27–
CR24 of Command Register 2 or on a pixel by pixel basis using
the PS inputs (ADV7160 only).
In 16-bit Palette Bypass Mode, the color channels bypass the
Pixel Mask and the Color Palette. The 8-bits of red pixel data
and 8-bits of green pixel data are mapped onto the 5 MSBs of
the red and blue DAC input and the 6 MSBs of the green DAC
input as shown in Figure 29. The remaining LSBs on each
DAC are zeros. The Bypass Mode can be selected in two ways,
by using CR27–CR24 of Command Register 2 or on a pixel by
pixel basis using the PS inputs (ADV7160 only).
–20–
REV. 0
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