a-Si TFT LCD Single Chip Driver
240RGBx320 Resolution and 262K color
ILI9325
3. Block Diagram
IOVCC
IM[3:0]
Index
Register
(IR)
nRESET
nCS
nWR/SCL
nRD
MPU I/F
18-bit
16-bit
9-bit
7
Control
Register
(CR)
Address
Counter
(AC)
18
LCD
Source
Driver
RS
8-bit
S[720:1]
SDI
SDO
SPI I/F
DB[17:0]
HSYNC
VSYNC
DOTCLK
ENABLE
TEST1
TEST2
RGB I/F
18-bit
16-bit
6-bit
18
18
18
Graphics
Operation
V63 ~ 0
VREG1OUT
VSYNC I/F
Read
Latch
Write
Latch
Grayscale
Reference
Voltage
TEST3
TS[8:0]
72
72
VGS
Graphics RAM
(GRAM)
VDDD
GND
DUMMY20~27
Regulator
RC-OSC.
DUMMY1~15
LCD
Gate
G[320:1]
VCOM
Timing
Controller
Driver
VCI
VCI1
VCOM
Generator
Charge-pump Power Circuit
GND
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