s3c2410a Samsung Semiconductor, Inc., s3c2410a Datasheet - Page 386

• Manufacturer Part Number: s3c2410a
• Description: 16/32-bit Risc Arm Microprocessor
• Manufacturer: Samsung Semiconductor, Inc.

LCD CONTROLLER
256 PALETTE USAGE (TFT)
Palette Configuration and Format Control
The S3C2410A provides 256 color palette for TFT LCD Control.
The user can select 256 colors from the 64K colors in these two formats.
The 256 color palette consists of the 256 (depth)
5:5:5:1(R:G:B:I) format.
When the user uses 5:5:5:1 format, the intensity data(I) is used as a common LSB bit of each RGB data. So,
5:5:5:1 format is the same as R(5+I):G(5+I):B(5+I) format.
In 5:5:5:1 format, for example, the user can write the palette as in Table 15-5 and then connect VD pin to TFT LCD
panel(R(5+I)=VD[23:19]+VD[18], VD[10] or VD[2], G(5+I)=VD[15:11]+ VD[18], VD[10] or VD[2], B(5+I)=VD[7:3]+
VD[18], VD[10] or VD[2].), and set FRM565 of LCDCON5 register to 0.
NOTES:
1.
2.
3.
Palette Read/Write
When the user performs Read/Write operation on the palette, HSTATUS and VSTATUS of LCDCON5 register must
be checked, for Read/Write operation is prohibited during the ACTIVE status of HSTATUS and VSTATUS.
Temporary Palette Configuration
The S3C2410A allows the user to fill a frame with one color without complex modification to fill the one color to the
frame buffer or palette. The one colored frame can be displayed by the writing a value of the color which is displayed
on LCD panel to TPALVAL of TPAL register and enable TPALEN.
15-20
INDEX\Bit Pos.
INDEX\Bit Pos.
Number of VD
Number of VD
0x4D000400 is Palette start address.
VD18, VD10 and VD2 have the same output value, I.
DATA[31:16] is invalid.
.......
.......
FFH
FFH
00H
01H
00H
01H
R4 R3 R2 R1 R0 G5 G4 G3 G2 G1 G0 B4 B3 B2 B1 B0
R4 R3 R2 R1 R0 G5 G4 G3 G2 G1 G0 B4 B3 B2 B1 B0
R4 R3 R2 R1 R0 G5 G4 G3 G2 G1 G0 B4 B3 B2 B1 B0
R4 R3 R2 R1 R0 G4 G3 G2 G1 G0 B4 B3 B2 B1 B0
R4 R3 R2 R1 R0 G4 G3 G2 G1 G0 B4 B3 B2 B1 B0
R4 R3 R2 R1 R0 G4 G3 G2 G1 G0 B4 B3 B2 B1 B0
15
23
15
23
14
22
14
22
13
21
13
21
12
20
12
20
11
19
11
19
Table 15-5. 5:5:5:1 Format
Table 15-4. 5:6:5 Format
10
15
10
15
14
14
16-bit SPSRAM. The palette supports 5:6:5 (R:G:B) format and
9
9
13
13
8
8
12
12
7
7
11
11
6
6
10
5
5
7
4
7
4
6
3
6
3
5
2
5
2
4
1
4
1
3
0
3
0
2)
I
I
I
0X4D0007FC
0X4D0007FC
0X4D000400
0X4D000404
0X4D000400
0X4D000404
Address
Address
(note1)
.......
.......
S3C2410A