Carrier based 24 bit color depth lvds – Kontron SMARC-sA3874i User Manual
Page 20
20
www.kontron.com
User’s Guide
3.2.9 Carrier Based 24 bit Color Depth LVDS
The Module parallel LCD path may be used to implement single or dual channel Carrier Board LVDS transmitter(s).
The color packing may be 24 bit or 18 bit. Since 18 bit single channel color packing is already available from the
Module LVDS, only 24 bit color packing is described in this section.
A single channel implementation uses one SN75LVDS83B (or equivalent) LVDS transmitter and a dual channel
implementation uses one Thine THC63LVD827 (or equivalent) LVDS transmitter. The same dual channel LVDS
transmitter can be used for single channel LVDS implementation, if the feature is available on the transmitter.
The following table shows how the sA3874i LCD pins should be mapped to TI SN75LVDS83B, for standard single
channel LVDS 24 bit color packing. The chart shows pin numbers for the BGA version of the part. The TSSOP
version can be used as well, although the pin numbering is different. The pin names remain the same.
Transmitters from other vendors may be used as well.
ULP-COM sA3874i Edge finger
LVDS Transmitter
(TI SN75LVDS83B)
LVDS
Channel
Transmit
bit Order
24 bit standard color
mapping
Pin #
Pin Name
Pin #
Pin Name
S102
LCD_D8
K5
D7
0
1
G0
S116
LCD_D21
J4
D6
2
R5
S115
LCD_D20
K3
D4
3
R4
S114
LCD_D19
J3
D3
4
R3
S113
LCD_D18
K2
D2
5
R2
S112
LCD_D17
K1
D1
6
R1
S111
LCD_D16
J2
D0
7
R0
S94
LCD_D1
D5
D18
1
1
B1
S93
LCD_D0
E5
D15
2
B0
S107
LCD_D13
F6
D14
3
G5
S106
LCD_D12
G6
D13
4
G4
S105
LCD_D11
G5
D12
5
G3
S104
LCD_D10
J6
D9
6
G2
S103
LCD_D9
K6
D8
7
G1
S120
LCD_DE
A3
D26
2
1
DE
S121
LCD_VS
B4
D25
2
VS