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ILI9320_ID9320.pdf
ILI9320
a-Si TFT LCD Single Chip Driver
240RGBx320 Resolution and 16.7M color
Datasheet
Preliminary
Version: V0.44
Document No.: ILI9320DS_V0.44.pdf
ILI TECHNOLOGY CORP.
4F, No. 2, Tech. 5th Rd., Hsinchu Science Park,
Taiwan 300, R.O.C.
Tel.886-3-5670095; Fax.886-3-5670096
http://www.ilitek.com
a-Si TFT LCD Single Chip Driver
240RGBx320 Resolution and 262K color
ILI9320
Table of Contents
7.1.
7.2.
Section Page
1.
Introduction.................................................................................................................................................... 7
2. Features ........................................................................................................................................................ 7
3. Block Diagram............................................................................................................................................... 9
4. Pin Descriptions .......................................................................................................................................... 10
5. Pad Arrangement and Coordination............................................................................................................ 15
6. Block Description ........................................................................................................................................ 22
7. System Interface ......................................................................................................................................... 25
Interface Specifications .................................................................................................................. 25
Input Interfaces .............................................................................................................................. 26
7.2.1.
i80/18-bit System Interface.................................................................................................. 27
i80/16-bit System Interface.................................................................................................. 28
7.2.2.
7.2.3.
i80/9-bit System Interface.................................................................................................... 29
i80/8-bit System Interface.................................................................................................... 29
7.2.4.
7.3. Serial Peripheral Interface (SPI) .................................................................................................... 30
7.4. VSYNC Interface............................................................................................................................ 34
7.5. RGB Input Interface ....................................................................................................................... 38
7.5.1. RGB Interface...................................................................................................................... 39
7.5.2. RGB Interface Timing .......................................................................................................... 40
7.5.3. Moving Picture Mode........................................................................................................... 42
7.5.4. 6-bit RGB Interface.............................................................................................................. 43
7.5.5. 16-bit RGB Interface............................................................................................................ 44
7.5.6. 18-bit RGB Interface............................................................................................................ 44
Interface Timing.............................................................................................................................. 47
8. Register Descriptions .................................................................................................................................. 48
8.1. Registers Access............................................................................................................................ 48
8.2.
Instruction Descriptions.................................................................................................................. 51
8.2.1.
Index (IR)............................................................................................................................. 53
8.2.2. Status Read (RS)................................................................................................................. 53
8.2.3. Start Oscillation (R00h)........................................................................................................ 53
8.2.4. Driver Output Control (R01h) .............................................................................................. 53
8.2.5. LCD Driving Wave Control (R02h) ...................................................................................... 55
8.2.6. Entry Mode (R03h) .............................................................................................................. 55
8.2.7. Resizing Control Register (R04h)........................................................................................ 57
8.2.8. Display Control 1 (R07h) ..................................................................................................... 58
8.2.9. Display Control 2 (R08h) ..................................................................................................... 59
8.2.10. Display Control 3 (R09h) ..................................................................................................... 60
8.2.11. Display Control 4 (R0Ah)..................................................................................................... 61
7.6.
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 2 of 114
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240RGBx320 Resolution and 262K color
ILI9320
8.2.12. RGB Display Interface Control 1 (R0Ch)............................................................................. 61
8.2.13. Frame Marker Position (R0Dh) ........................................................................................... 62
8.2.14. RGB Display Interface Control 2 (R0Fh)............................................................................. 63
8.2.15. Power Control 1 (R10h)....................................................................................................... 63
8.2.16. Power Control 2 (R11h) ....................................................................................................... 65
8.2.17. Power Control 3 (R12h)....................................................................................................... 65
8.2.18. Power Control 4 (R13h)....................................................................................................... 66
8.2.19. GRAM Horizontal/Vertical Address Set (R20h, R21h) ........................................................ 66
8.2.20. Write Data to GRAM (R22h)................................................................................................ 67
8.2.21. Read Data from GRAM (R22h) ........................................................................................... 67
8.2.22. Power Control 7 (R29h)....................................................................................................... 69
8.2.23. Frame Rate and Color Control (R2Bh)................................................................................ 70
8.2.24. Gamma Control (R30h ~ R3Dh).......................................................................................... 71
8.2.25. Horizontal and Vertical RAM Address Position (R50h, R51h, R52h, R53h) ....................... 71
8.2.26. Gate Scan Control (R60h, R61h, R6Ah) ............................................................................. 72
8.2.27. Partial Image 1 Display Position (R80h).............................................................................. 75
8.2.28. Partial Image 1 RAM Start/End Address (R81h, R82h)....................................................... 75
8.2.29. Partial Image 2 Display Position (R83h).............................................................................. 75
8.2.30. Partial Image 2 RAM Start/End Address (R84h, R85h)....................................................... 75
8.2.31. Panel Interface Control 1 (R90h)......................................................................................... 75
8.2.32. Panel Interface Control 2 (R92h)......................................................................................... 76
8.2.33. Panel Interface Control 3 (R93h)......................................................................................... 77
8.2.34. Panel Interface Control 4 (R95h)......................................................................................... 77
8.2.35. Panel Interface Control 5 (R97h)......................................................................................... 78
8.2.36. Panel Interface Control 6 (R98h)......................................................................................... 78
9. GRAM Address Map & Read/Write............................................................................................................. 79
10. Window Address Function........................................................................................................................... 85
11. Gamma Correction...................................................................................................................................... 87
12. Application................................................................................................................................................... 96
12.1. Configuration of Power Supply Circuit ........................................................................................... 96
12.2. Display ON/OFF Sequence ........................................................................................................... 99
12.3. Deep Standby and Sleep Mode ................................................................................................... 100
12.4. Power Supply Configuration ........................................................................................................ 101
12.5. Voltage Generation ...................................................................................................................... 102
12.6. Applied Voltage to the TFT panel................................................................................................. 103
12.7. Oscillator ...................................................................................................................................... 103
12.8. Frame Rate Adjustment ............................................................................................................... 104
12.9. Partial Display Function ............................................................................................................... 104
12.10. Resizing Function......................................................................................................................... 105
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 3 of 114
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a-Si TFT LCD Single Chip Driver
240RGBx320 Resolution and 262K color
ILI9320
13. Electrical Characteristics........................................................................................................................... 108
13.1. Absolute Maximum Ratings ......................................................................................................... 108
13.2. DC Characteristics ....................................................................................................................... 109
13.3. Clock Characteristics ................................................................................................................... 109
13.4. Reset Timing Characteristics ....................................................................................................... 109
13.5. LCD Driver Output Characteristics............................................................................................... 109
13.6. AC Characteristics ....................................................................................................................... 110
13.6.1. i80-System Interface Timing Characteristics..................................................................... 110
13.6.2. Serial Data Transfer Interface Timing Characteristics........................................................111
13.6.3. RGB Interface Timing Characteristics ............................................................................... 112
14. Revision History ........................................................................................................................................ 114
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 4 of 114
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a-Si TFT LCD Single Chip Driver
240RGBx320 Resolution and 262K color
ILI9320
Figures
FIGURE1 SYSTEM INTERFACE AND RGB INTERFACE CONNECTION.................................................................................... 26
FIGURE2 18-BIT SYSTEM INTERFACE DATA FORMAT ......................................................................................................... 27
FIGURE3 16-BIT SYSTEM INTERFACE DATA FORMAT ......................................................................................................... 28
FIGURE4 9-BIT SYSTEM INTERFACE DATA FORMAT ........................................................................................................... 29
FIGURE5 8-BIT SYSTEM INTERFACE DATA FORMAT ........................................................................................................... 30
FIGURE6 DATA TRANSFER SYNCHRONIZATION IN 8/9-BIT SYSTEM INTERFACE.................................................................. 30
FIGURE 7 DATA FORMAT OF SPI INTERFACE..................................................................................................................... 32
FIGURE8 DATA TRANSMISSION THROUGH SERIAL PERIPHERAL INTERFACE (SPI) ............................................................... 33
FIGURE9 DATA TRANSMISSION THROUGH VSYNC INTERFACE)......................................................................................... 34
FIGURE10 MOVING PICTURE DATA TRANSMISSION THROUGH VSYNC INTERFACE ............................................................ 34
FIGURE11 OPERATION THROUGH VSYNC INTERFACE....................................................................................................... 35
FIGURE12 TRANSITION FLOW BETWEEN VSYNC AND INTERNAL CLOCK OPERATION MODES ............................................ 37
FIGURE13 RGB INTERFACE DATA FORMAT ...................................................................................................................... 38
FIGURE14 GRAM ACCESS AREA BY RGB INTERFACE ..................................................................................................... 39
FIGURE15 TIMING CHART OF SIGNALS IN 18-/16-BIT RGB INTERFACE MODE.................................................................. 40
FIGURE16 TIMING CHART OF SIGNALS IN 6-BIT RGB INTERFACE MODE ............................................................................ 41
FIGURE17 EXAMPLE OF UPDATE THE STILL AND MOVING PICTURE.................................................................................... 42
FIGURE18 INTERNAL CLOCK OPERATION/RGB INTERFACE MODE SWITCHING ................................................................... 45
FIGURE19 GRAM ACCESS BETWEEN SYSTEM INTERFACE AND RGB INTERFACE .............................................................. 46
FIGURE20 RELATIONSHIP BETWEEN RGB I/F SIGNALS AND LCD DRIVING SIGNALS FOR PANEL ..................................... 47
FIGURE21 REGISTER SETTING WITH SERIAL PERIPHERAL INTERFACE (SPI)...................................................................... 48
FIGURE22 REGISTER SETTING WITH I80 SYSTEM INTERFACE ............................................................................................ 49
FIGURE 23 REGISTER READ/WRITE TIMING OF I80 SYSTEM INTERFACE ........................................................................... 50
FIGURE24 GRAM ACCESS DIRECTION SETTING ............................................................................................................... 55
FIGURE25 16-BIT MPU SYSTEM INTERFACE DATA FORMAT............................................................................................. 56
FIGURE26 8-BIT MPU SYSTEM INTERFACE DATA FORMAT............................................................................................... 57
FIGURE 27 DATA READ FROM GRAM THROUGH READ DATA REGISTER IN 18-/16-/9-/8-BIT INTERFACE MODE.............. 68
FIGURE 28 GRAM DATA READ BACK FLOW CHART ........................................................................................................ 69
FIGURE 29 GRAM ACCESS RANGE CONFIGURATION ........................................................................................................ 72
FIGURE30 GRAM READ/WRITE TIMING OF I80-SYSTEM INTERFACE ............................................................................... 79
FIGURE31 I80-SYSTEM INTERFACE WITH 18-/16-/9-BIT DATA BUS (SS=”0”, BGR=”0”) ................................................. 81
FIGURE32 I80-SYSTEM INTERFACE WITH 8-BIT DATA BUS (SS=”0”, BGR=”0”) .............................................................. 82
FIGURE 33 I80-SYSTEM INTERFACE WITH 18-/9-BIT DATA BUS (SS=”1”, BGR=”1”) ....................................................... 84
FIGURE 34 GRAM ACCESS WINDOW MAP ....................................................................................................................... 85
FIGURE 35 GRAYSCALE VOLTAGE GENERATION............................................................................................................... 87
FIGURE 36 GRAYSCALE VOLTAGE ADJUSTMENT .............................................................................................................. 88
FIGURE 37 GAMMA CURVE ADJUSTMENT ......................................................................................................................... 89
FIGURE 38 RELATIONSHIP BETWEEN SOURCE OUTPUT AND VCOM ................................................................................. 95
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 5 of 114
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a-Si TFT LCD Single Chip Driver
240RGBx320 Resolution and 262K color
ILI9320
FIGURE 39 RELATIONSHIP BETWEEN GRAM DATA AND OUTPUT LEVEL.......................................................................... 95
FIGURE 40 POWER SUPPLY CIRCUIT BLOCK...................................................................................................................... 98
FIGURE 41 DISPLAY ON/OFF REGISTER SETTING SEQUENCE ............................................................................................ 99
FIGURE 42 DEEP STANDBY/SLEEP MODE REGISTER SETTING SEQUENCE ....................................................................... 100
FIGURE 43 POWER SUPPLY ON/OFF SEQUENCE ............................................................................................................. 101
FIGURE 44 VOLTAGE CONFIGURATION DIAGRAM........................................................................................................... 102
FIGURE 45 VOLTAGE OUTPUT TO TFT LCD PANEL ........................................................................................................ 103
FIGURE 46 OSCILLATION CONNECTION ........................................................................................................................... 103
FIGURE 47 PARTIAL DISPLAY EXAMPLE.......................................................................................................................... 105
FIGURE 48 DATA TRANSFER IN RESIZING......................................................................................................................... 106
FIGURE 49 RESIZING EXAMPLE ....................................................................................................................................... 106
FIGURE 50 I80-SYSTEM BUS TIMING............................................................................................................................... 111
FIGURE 51 SPI SYSTEM BUS TIMING............................................................................................................................... 112
FIGURE52 RGB INTERFACE TIMING................................................................................................................................ 113
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 6 of 114
Version: 0.44
a-Si TFT LCD Single Chip Driver
240RGBx320 Resolution and 262K color
ILI9320
1. Introduction
ILI9320 is a 262,144-color one-chip SoC driver for a-TFT liquid crystal display with resolution of 240RGBx320
dots, comprising a 720-channel source driver, a 320-channel gate driver, 172,800 bytes RAM for graphic data
of 240RGBx320 dots, and power supply circuit.
The dithering image processing is implemented in ILI9320 to provide the 16 million colors display quality and
the Multi-domain Vertical Alignment (MVA) wide view angle display is also supported in the ILI9320.
ILI9320 has four kinds of system interfaces which are i80-system MPU interface (8-/9-/16-/18-bit bus width),
VSYNC interface (system interface + VSYNC, internal clock, DB[17:0]), serial data transfer interface (SPI)
and RGB 6-/16-/18-bit interface (DOTCLK, VSYNC, HSYNC, ENABLE, DB[17:0]).
In RGB interface and VSYNC interface mode, the combined use of high-speed RAM write function and widow
address function enables to display a moving picture at a position specified by a user and still pictures in other
areas on the screen simultaneously, which makes it possible to transfer display the refresh data only to
minimize data transfers and power consumption.
ILI9320 can operate with 1.65V I/O interface voltage, and an incorporated voltage follower circuit to generate
voltage levels for driving an LCD. The ILI9320 also supports a function to display in 8 colors and a sleep mode,
allowing for precise power control by software and these features make the ILI9320 an ideal LCD driver for
medium or small size portable products such as digital cellular phones, smart phone, PDA and PMP where
long battery life is a major concern.
2. Features
Single chip solution for a liquid crystal QVGA TFT LCD display
240RGBx320-dot resolution capable with real 262,144 display color
Dithering image processing implemented to provide 16.7-million color display quality
Support MVA (Multi-domain Vertical Alignment) wide view display
Incorporate 720-channel source driver and 320-channel gate driver
Internal 172,800 bytes graphic RAM
High-speed RAM burst write function
System interfaces
i80 system interface with 8-/ 9-/16-/18-bit bus width
Serial Peripheral Interface (SPI)
RGB interface with 6-/16-/18-bit bus width (VSYNC, HSYNC, DOTCLK, ENABLE, DB[17:0])
VSYNC interface (System interface + VSYNC)
n-line liquid crystal AC drive: invert polarity at an interval of arbitrarily n lines (n: 1 ~ 64)
Internal oscillator and hardware reset
Resizing function (×1/2, ×1/4)
Reversible source/gate driver shift direction
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 7 of 114
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a-Si TFT LCD Single Chip Driver
240RGBx320 Resolution and 262K color
ILI9320
Window address function to specify a rectangular area for internal GRAM access
Bit operation function for facilitating graphics data processing
Bit-unit write data mask function
Pixel-unit logical/conditional write function
Abundant functions for color display control
γ-correction function enabling display in 262,144 colors
Line-unit vertical scrolling function
Partial drive function, enabling partially driving an LCD panel at positions specified by user
Incorporate step-up circuits for stepping up a liquid crystal drive voltage level up to 6 times (x6)
Power saving functions
8-color mode
standby mode
sleep mode
Low -power consumption architecture
Low operating power supplies:
IOVcc = 1.65V ~ 3.3 V (interface I/O)
Vcc = 2.4V ~ 3.3 V (internal logic)
Vci = 2.5V ~ 3.3 V (analog)
LCD Voltage drive:
Source/VCOM power supply voltage
DDVDH - GND = 4.5V ~ 6.0V
VCL – GND = -2.0V ~ -3.0V
VCI – VCL ≦ 6.0V
Gate driver output voltage
VGH - GND = 10V ~ 20V
VGL – GND = -5V ~ -15V
VGH – VGL ≦ 32V
VCOM driver output voltage
VCOMH = 3.0V ~ (DDVDH-0.5)V
VCOML = (VCL+0.5)V ~ 0V
VCOMH-VCOML ≦ 6.0V
a-TFT LCD storage capacitor: Cst only
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 8 of 114
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