a-Si TFT LCD Single Chip Driver
240RGBx320 Resolution and 262K color
ILI9325
7.5.5. 16-bit RGB Interface
The 16-bit RGB interface is selected by setting the RIM[1:0] bits to “01”. The display operation is synchronized
with VSYNC, HSYNC, and DOTCLK signals. Display data are transferred to the internal RAM in
synchronization with the display operation via 16-bit RGB data bus (DB17-13, DB11-1) according to the data
enable signal (ENABLE). Registers are set only via the system interface.
16-bit RGB Interface (65K colors)
DB
17
DB
16
DB
15
DB
14
DB
13
DB
11
DB
10
DB
9
DB
8
DB
7
DB
6
DB
5
DB
4
DB
3
DB
2
DB
1
Input Data
Write Data
Register
WD WD WD WD WD
WD WD WD WD WD WD WD WD WD WD WD
17
16
15
14
13
11
10
9
8
7
6
5
4
3
2
1
GRAM Data &
RGB Mapping
R5
R4
R3
R2
R1
R0
G5
G4
G3
G2
G1
G0
B5
B4
B3
B2
B1
B0
7.5.6. 18-bit RGB Interface
The 18-bit RGB interface is selected by setting the RIM[1:0] bits to “00”. The display operation is synchronized
with VSYNC, HSYNC, and DOTCLK signals. Display data are transferred to the internal RAM in
synchronization with the display operation via 18-bit RGB data bus (DB[17:0]) according to the data enable
signal (ENABLE). Registers are set only via the system interface.
RGB interface with 18-bit data bus
DB
17
DB
16
DB
15
DB
14
DB
13
DB
12
DB
11
DB
10
DB
9
DB
8
DB
7
DB
6
DB
5
DB
4
DB
3
DB
2
DB
1
DB
0
Input Data
R5
R4
R3
R2
R1
R0
G5
G4
G3
G2
G1
G0
B5
B4
B3
B2
B1
B0
RGB Assignment
Notes in using the RGB Input Interface
1. The following are the functions not available in RGB Input Interface mode.
Function
Partial display
Scroll function
RGB interface
Not available
Not available
Not available
Not available
I80 system interface
Available
Available
Available
Available
Interlaced scan
Graphics operation function
2. VSYNC, HSYNC, and DOTCLK signals must be supplied throughout a display operation period.
3. The periods set with the NO[1:0] bits (gate output non-overlap period), STD[1:0] bits (source output delay
period) and EQ[1:0] bits (equalization period) are not based on the internal clock but based on DOTCLK in
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Page 44 of 111
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