Data Sheet

a-Si TFT LCD Single Chip Driver
240RGBx320 Resolution and 262K color
ILI9341
The information contained herein is the exclusive property of ILI Technology Corp. and shall not be distributed,
reproduced, or disclosed in whole or in part without prior written permission of ILI Technology Corp.
Page 30 of 233
7.1.5. 8080-Ⅱ
ⅡⅡ
Ⅱ Series Parallel Interface
ILI9341 can be accessed via 8-/9-/16-/18-bit MCU 8080- series parallel interface. The chip-select CSX (active
low) is used to enable or disable ILI9341 chip. The RESX (active low) is an external reset signal. WRX is the
parallel data write strobe, RDX is the parallel data read strobe and D[17:0] is parallel data bus.
ILI9341 latches the input data at the rising edge of WRX signal. The D/CX is the signal of data/command
selection. When D/CX=’1’, D [17:0] bits are display RAM data or command’s parameters. When D/CX=’0’, D
[17:0] bits are commands.
The 8080- series bi-directional interface can be used for communication between the MCU controller and LCD
driver chip. The 8080- Interface selection is done when IM3 pin is high state (VDDI level). Interface bus width
can be selected by IM [2:0] bits.
The selection of 8080- series parallel interface is shown as the table in the following.
IM3 IM2 IM1 IM0 MCU-Interface Mode CSX WRX RDX D/CX Function
“L”
“H” “L” Write command code.
“L”
“H” “H” Read internal status.
“L”
“H” “H” Write parameter or display data.
1 0 0 0 8080 MCU 16-bit bus interface
“L”
“H” “H” Reads parameter or display data.
“L”
“H” “L” Write command code.
“L”
“H” “H” Read internal status.
“L”
“H” “H” Write parameter or display data.
1 0 0 1 8080 MCU 8-bit bus interface
“L”
“H” “H” Reads parameter or display data.
“L”
“H” “L” Write command code.
“L”
“H” “H” Read internal status.
“L”
“H” “H” Write parameter or display data.
1 0 1 0 8080 MCU 18-bit bus interface
“L”
“H” “H” Reads parameter or display data.
“L”
“H” “L” Write command code.
“L”
“H” “H” Read internal status.
“L”
“H” “H” Write parameter or display data.
1 0 1 1 8080 MCU 9-bit bus interface
“L”
“H” “H” Reads parameter or display data.