DS90C387 Datasheet, PDF (15/26 Pages) National Semiconductor (TI) – Dual Pixel LVDS Display Interface (LDI)-SVGA/QXGA

LVDS Interface
Different Color Mapping options exists. Please see National
Application Notes 1127 and AN-1163 for details. A careful
review of Color Mapping information is recommended as
there is not a standardized color naming convention be-
tween 6-bit and 8-bit color data with regards to LSB and
MSB designations.
X
X=R
X=G
X=B
TABLE 1. LVDS DATA BIT NAMING CONVENTION
Y
Z
Y=1
Y=2
Z=0-7
Description
Red
Green
Blue
Odd (First) Pixel
Even (Second) Pixel
LVDS bit number (not VGA controller LSB to MSB)
Note 17: For a 48-bit dual pixel application - LSB (Less Significant Bit) = R16,G16,B16,R26,G26,B26 and MSB (Most Significant Bit) = R15,G15,B15,R25,G25,B25.
Note 18: For a 36-bit dual pixel application - LSB (Less Significant Bit) = R10,G10,B10,R20,G20,B20 and MSB (Most Significant Bit) = R15,G15,B15,R25,G25,B25.
TABLE 2. SINGLE PIXEL PER CLOCK INPUT APPLICATION DATA MAPPING (DUAL=GND)
VGA - TFT Data Signals Color
Bits
24-bit
18-bit
LSB
R0
R1
R2
R0
R3
R1
R4
R2
R5
R3
R6
R4
MSB
R7
R5
LSB
G0
G1
G2
G0
G3
G1
G4
G2
G5
G3
G6
G4
MSB
G7
G5
LSB
B0
B1
B2
B0
B3
B1
B4
B2
B5
B3
B6
B4
MSB
B7
B5
Transmitter input pin names
DS90C387
R16
R17
R10
R11
R12
R13
R14
R15
G16
G17
G10
G11
G12
G13
G14
G15
B16
B17
B10
B11
B12
B13
B14
B15
Receiver output pin names
DS90CF388
R16
R17
R10
R11
R12
R13
R14
R15
G16
G17
G10
G11
G12
G13
G14
G15
B16
B17
B10
B11
B12
B13
B14
B15
TFT Panel Data
Signals
18-bit
24-bit
R0
R1
R0
R2
R1
R3
R2
R4
R3
R5
R4
R6
R5
R7
G0
G1
G0
G2
G1
G3
G2
G4
G3
G5
G4
G6
G5
G7
B0
B1
B0
B2
B1
B3
B2
B4
B3
B5
B4
B6
B5
B7
TABLE 3. DUAL PIXEL PER CLOCK INPUT APPLICATION DATA MAPPING (DUAL=VCC)
VGA - TFT Data Signals Color
Bits
48-bit
36-bit
LSB
RO0
RO1
RO2
RO0
Transmitter input pin names
DS90C387
R16
R17
R10
Receiver output pin names
DS90CF388
R16
R17
R10
TFT Panel Data
Signals
36-bit
48-bit
RO0
RO1
RO0
RO2
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