Topway LM2088RCW User manual

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LM2088RCW
LCD Module User Manual
Prepared by:
Liqin
Checked by: Approved by:
Date: 2009-06-22 Date: Date:
Rev. Descriptions Release Date
0.1 New release 2009-06-22
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Table of Content
1. Basic Specifications................................................................................................................ 3
1.1 Display Specifications ............................................................................................................ 3
1.2 Mechanical Specifications...................................................................................................... 3
1.3 Block Diagram........................................................................................................................ 3
1.4 Terminal Functions................................................................................................................. 4
2. Absolute Maximum Ratings.................................................................................................... 5
3. Electrical Characteristics........................................................................................................ 5
3.1 DC Characteristics ................................................................................................................. 5
3.2 LED Backlight Circuit Characteristics..................................................................................... 5
3.3 AC Characteristics ................................................................................................................. 6
3.4 Reset Timing .......................................................................................................................... 6
4. Function Specifications .......................................................................................................... 7
4.1 Adjusting the Display Contrast ............................................................................................... 7
4.2 Resetting the LCD module ..................................................................................................... 7
4.3 Interfacing Setting .................................................................................................................. 7
4.4 Display Pixel Map................................................................................................................... 7
4.5 Control Data and Command .................................................................................................. 8
4.6 Command Summary .............................................................................................................. 8
4.7 Initialization Setting Example ............................................................................................... 11
5. Design and Handling Precaution ......................................................................................... 12
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1. Basic Specifications
1.1 Display Specifications
1) LCD Display Mode : FSTN, Positive, Transmissive
2) Display Color : Display Data = “1” : Dark Gray (*1)
: Display Data = “0” : Light Gray (*2)
3) Viewing Angle : 6H
4) Driving Method : 1/240 duty, 1/14 bias
5) Backlight : White LED backlight
Note:
*1. Color tone may slightly change by Temperature and Driving Condition.
*2. The Color is defined as the inactive / background color
1.2 Mechanical Specifications
1) Outline Dimension : 160.0 x 109.0 x 12.2 MAX.
see attached Outline Drawing for details
1.3 Block Diagram
320 x 240 pixels
LCD Panel
SEGMENT
Driver
/WR,/RD,RS, /CS,/RST
DB0~DB7
COMMON
Driver
VSS
VDD
V0
VOUT
BLK
BLA
SEGMENT
Driver
Booster &
Power Circuit
BUSY
RA8806
or equivalent
Backlight Circuit
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1.4 Terminal Functions
Pin No.
K1&K2
Pin
Name I/O Descriptions
1 VSS Power 0V Power Supply, GND
2 VDD Power Positive Power Supply
3 V0 Input LCD Contrast Reference Input
4 /WR Input Write enable input, active LOW
5 /RD Input Read enable input, active LOW
6 /CS Input Chip Select Signal
/CS=LOW: Data IO is enabled
7 RS Input Register Select
RS=HIGH: status read or command write cycle is selected
RS=LOW: data read/write cycle is selected
8 /RST Input Reset Signal:
/RST = L, Reset the LCD Module
/RST = H, Normal Running
9 DB0
: :
16 DB7
I/O 8-bit bi-directional data bus
17 BUSY Output Indicate the RA8806 in busy state or not,could been used for
MPU to get busy state by connecting it to IO port
18 VOUT Power Power Booster Output for V0
19 BLA Power Positive Power Supply for LED backlight
20 BLK Power Negative Power Supply for LED backlight
note:
*1. The LCM Fixed to 80 mode by default ,could been changed to 68 mode by changing jumpers
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2. Absolute Maximum Ratings
Items Symbol Min. Max. Unit Condition
Supply Voltage VDD 0 +5.5 V
VSS = 0V
Input Voltage VIN V
SS-0.3 VDD+0.3 V VSS = 0V
Operating Temperature TOP -20 +70
°C No Condensation
Storage Temperature TST -30 +80
°C No Condensation
Cautions:
Any Stresses exceeding the Absolute Maximum Ratings may cause substantial damage to the device. Functional operation of this
device at other conditions beyond those listed in the specification is not implied and prolonged exposure to extreme conditions may
affect device reliability.
3. Electrical Characteristics
3.1 DC Characteristics
VSS=0V, VDD=5.0V, TOP=25°C
Items Symbol MIN. TYP. MAX. Unit Applicable Pin
Operating Voltage VDD 4.7 5.0 5.3 V
VDD
Input High Voltage VIN 0.8xVDD - VDD V
DB0~DB7, /WR, /RD, /CS,
RS, /RES
Input Low Voltage VIN VSS - 0.1xVDD V
DB0~DB7, /WR, /RD, /CS,
RS, /RES
LCD Contrast
Reference Voltage V0- 23.2 - V
V0
Operating Current IDD - 22.3 - mA
VDD
3.2 LED Backlight Circuit Characteristics
BLK=0V, IfBLA=153mA, TOP =25°C
Items Symbol MIN. TYP. MAX. Unit Applicable Pin
Forward Voltage VfBLA - 5.0 - V
BLA
Forward Current IfBLA - 153 180 mA
BLA
Cautions:
Exceeding the recommended driving current could cause substantial damage to the backlight and shorten its lifetime.
BLK
BLA
No. of LED = 9pcs
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3.3 AC Characteristics
3.3.1 8080 Mode VSS=0V, VDD=5.0V, TOP=25°C
Item Symbol MIN. TYP. MAX. Unit
System Cycle Time (*2) tcyc8 320 - - ns
Strobe Pulse Width tcc8 63 - - ns
Address Setup Time tas8 10 - - ns
Address Hold Time tah8 25 - - ns
Data Setup Time tds8 38 ns
Data Hold Time tdh8 25 - - ns
Data Access Time tacc8 - - 25 ns
Output disable Time toh8 - - 13 ns
Note: *1. Input signal rise/fall time should be less than 20ns
*2. System clock=6MHz
*3. Bus timing is for one byte transaction only.
For details, please refer to RA8806 datasheet.
Bus Timing Diagram
3.4 Reset Timing
VSS=0V, VDD=5.0V, TOP=25°C
Item Symbol MIN. TYP. MAX. Unit
Reset setup time trs 1.3 - - ms
Reset hold time trh 1.3 - - ms
Reset active time (*1) trst 0.2 - - us
Note: *1. System clock=6MHz
Reset Timing Diagram
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4. Function Specifications
4.1 Adjusting the Display Contrast
A Variable-Resistor must be connected to the
LCD module for providing a reference to V0.
Adjusting the VR will result the change of LCD
display contrast.
The recommended value of VR is 25k to 50k
4.2 Resetting the LCD module
The LCD module should be initialized by hardware reset, using /RST terminal.
While turning on the VDD and VSS power supply, maintain /RST terminal at LOW level. After the
power supply stabilized, release the reset terminal (/RST=HIGH)
4.3 Interfacing Setting
Jumpers could been used to change bus interfacing family
Jumper
JP6 JP7 JP8 JP9 Function Discription
open close close open 8080 mode 8 bit selected <default>
close open close open 6800 mode 8 bit selected
close open open close 6800 mode 4 bit selected
4.4 Display Pixel Map
1,1
(D7)
2,1
(D6)
3,1
(D5)
4,1
(D4)
5,1
(D3) - - - - - - 316,1 (D4)
317,1
(D3)
318,1
(D2)
319,1
(D1)
320,1
(D0)
1,2
(D7)
2,2
(D6)
3,2
(D5)
4,2
(D4)
5,2
(D3) - - - - - - 316,2
(D4)
317,2
(D3)
318,2
(D2)
319,2
(D1)
320,2
(D0)
1,3
(D7)
2,3
(D6)
3,3
(D5)
4,3
(D4)
5,3
(D3) - - - - - - 316,3
(D4)
317,3
(D3)
318,3
(D2)
319,3
(D1)
320,3
(D0)
: : : : : : : : : : : :
: : : : : : : : : : : :
: : : : : : : : : : : :
1,238
(D7)
2,238
(D6)
3,238
(D5)
4,238
(D4)
5,238
(D3) - - - - - - 316,238
(D4)
317,238
(D3)
318,238
(D2)
319,238
(D1)
320,238
(D0)
1,239
(D7)
2,239
(D6)
3,239
(D5)
4,239
(D4)
5,239
(D3) - - - - - - 316,239
(D4)
317,239
(D3)
318,239
(D2)
319,239
(D1)
320,239
(D0)
1,240
(D7)
2,240
(D6)
3,240
(D5)
4,240
(D4)
5,240
(D3) - - - - - - 316,240
(D4)
317,240
(D3)
318,240
(D2)
319,240
(D1)
320,240
(D0)
Pixel mapping (Top View)
Note:
*1. Based on the top view of the LCD module,
the 1, 1 (x, y) pixel is the upper-left pixel;
the 320, 240 (x, y) pixel is the lower-right pixel.
*2. For the details of memory mapping please refer to RA8806 datasheet.
V0
VSS
VDD
Power Supply
VR
VOUT
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4.5 Control Data and Command
The LCD module setting is controlled by the internal Register Values.
The Register Address should be addressed when RS=1 and Register Value should be issued
when RS=0.
A full command sequence should be as follow.
Steps /RD /WR RS Data (DB0~ DB7)
1st 1 0 1 Register Address
2nd 1 0 0 Register Value
4.6 Command Summary
Note:
For details please refer to RA8806 datasheet.
Reg.
Add
Reg.
Name R/W
D7 D6 D5 D4 D3 D2 D1 D0
Descriptions
-- STATUS R
MBUSY
SBUSY
SLEEP
-- --
WAKE_STS
KS_STS
TP_STS
MBUSY:Memory Write Busy Flag
1=Busy when write font or clear RAM; 0=not busy
SBUSY:Scan Busy Flag
1=Busy when driver scan logic is not idle; 0=not busy
SLEEP:Sleep state
1= In Sleep mode; 0=In Normal mode
WAKE_STS:Wakeup Status Bit Same as REG[0FH] Bit2
KS_STS:Key Status Bit Same as REG[0FH] Bit1
TP_STS:Tp Status Bit Same as REG[0FH] Bit0
00h WLCR R/W
PWR
LINER
SR
--
CG
DP
BK
DV
PWR : Power Mode
1=In Sleep Mode; 0=In Normal Mode
LINER:linear Decode Mode
1=User-defined ROM mapping rule; 0=GIG5/GB ROMmapping
rule
SR : Software Reset
1=reset all register (except DDRAM); 0=normal operation
CG : Display mode selection
1=Character Mode; 0=Graphic Mode
DP : Display on off control
1=normal display; 0=display off
BK : Full screen blinking control
1=blinking (blink time is set by REG 80H); 0=normal;
DV : Full screen inverse control
1=Inverse Full Screen; 0=Normal
01h MISC R/W
NO_FLICKER
CKN
BUSY_LEV
INT_LEV
XCK_SEL1 XCK_SEL0
SDIR
CDIR
NO_FLICKER : Eliminating Flicker
1=enable,scan will auto-pending when busy; 0=disable
CKN : Clock Output in pin CLK_OUT
1=The pin indicates SLEEPstate of STATUS REG;
0=The pin output internal system clock
BUSY_LEV : Busy Polarity(for “BUSY” pin)
1=Set Active High; 0=Set Active Low
INT_LEV:Interrupt Polarty(for “INT” pin)
1=Set Active High; 0=Set Active Low
XCK_SEL[1:0] : Driver Clock Selection
00=CLK/8; 01=CLK/4(Default); 10=CLK/2; 11=CLK
The CLK means system clock
SDIR:SEG Scan Direction
1=SEG order is 319~0; 0=SEG order is 0~319
CDIR: COM Scan Direction
1=COM order is 239~0; 0=COM order is 0~239
03h ADSR R/W
SCR_PEND
-- -- --
BIT_INV
SCR_DIR
SCR_HV SCR_EN
SCR_PEND : scroll Function Pending
1=Scroll function pending; 0=Scroll function keep active
BIT_INV : Set driver data output BIT Order
1=inverse order (BIT7 to BIT0, BIT6 to BIT1, and so on;
0=Normal order
SCR_DIR : Scroll Direction
When SCR_HV=1, 1= Bottom -> Top; 0= Top -> Bottom
When SCR_HV=0, 1=Right -> Left; 0=Left -> Right
SCR_HV : Scroll Horizontal/Vertical Selection
1= Common Scrolling(Vertical); 0= Segment Scrolling(Horizontal)
SCR_EN : Scroll Enable
1=Scroll function enable; 0=Scroll function disable
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Register Table Summary (cont’)
Reg.
Add
Reg.
Name R/W
D7 D6 D5 D4 D3 D2 D1 D0
Descriptions
0FH INTR R/W
--
WAKI_EN
KEYI_EN
TPI_EN
TP_ACT
WAK_STS
KEY_STS
TP_STS
WAKI_EN : Wakeup Interrupt Mask
1=enable ; 0=disable
KEYI_EN : Key-Scan Inerrupt Mask
1=enable ; 0=disable
TPI_EN : Touch Panel Interrupt Mask
1=Generate interrupt output if TP was detected; 0=disable
TP_ACT : Touch Panel Event (only read)
1=TP is touched;0=TP is not touched
WAK_STS : Wakeup Interrupt Status bit
1=Indicate wake-up event happen from Sleep mode
0=Indicate no wake-up happen
User must write 0 to clear the status bit
KEY_STS : Key-Scan Interrupt Status bit
1=Key-Scan Detect Key input; 0=Key-Scan don’t Delect key input
User must write 0 to clear the status bit
TP_STS : Touch Panel Detect Status bit
1= TP touched; 0=TP untouched
User must write 0 to clear the status bit
10h WCCR R/W
CUR_INC
FULL_OFS
BIT_REV
BOLD
T90DEG
CUR_EN
CUR_BLK
--
CUR_INC : Auto-increase Cursor Position in reading/writing
DDRAM operation
1=disable; 0=enable
FILL_OFS: Full-size and Half-size Character Alignment
1=Full-size alignment in Full-size and Half-size mixed mode;
0=disable
BIT_REV : Reversed Data Write mode
1= invertly; 0= directly
BOLD : Set Bold font (char mode only)
1=bold; 0=normal
T90DEG : Font Rotate mode (Font rotaed 90 degree)
1=enable; 0=normal
CUR_EN : Cursor display control
1=on; 0=off
CUR_BLK : Cursor blink control
1=blinking; 0=normal (Blink time is determined by REG 80H)
11h CHWI R/W
CURH3 CURH2 CURH1 CURH0
ROWH3 ROWH2 ROWH1 ROWH0
CURH[3:0] : Cursor Height (Vertical direction,horizontal is fix)
0000b : Cursoer height 1pixel
0001b : Cursor height 2 pixels
……
1111b : Cirsor height 16 pixels
ROWH[3:0] : Char Line Gap
0000b : Char LineGap 1pixel
0001b : Char LineGap 2 pixels
……
1111b : Char LineGap 16 pixels
12h MAMR R/W
CUR_HV
DISPMD2 DISPMD1 DISPMD0
L_MIX1 L_MIX0
MW_MD1 MW_MD0
CUR_HV : Cursoer Auto Shifting Direction(only Graphic Mode)
1= Vertical then Horizontal; 0= Horizontal then Vertical
DISPMD[2:0] : Display Layer and Display Mode Selection
001=page1 only(default); 010=page2 only;
011=combine two layer; 000=gray scale mode
110=extended mode1, 111=extended mode2
L_MIX[1:0] : two layer mode setting
00=OR; 01=XOR; 10=NOR; 11=AND
MW[1:0] : Layer Read/Write Selection
00=CGRAM(512Byte); 01=page1; 10=page2;
11=page1 & page2 at the same time
20h AWRR R/W
-- --
AWR5 AWR4 AWR3 AWR2 AWR1 AWR0
AWR[5:0]: Active Window Right Position ->Segment-Right
Default Value:27h
21h DWRR R/W
-- --
DWW5 DWW4 DWW3 DWW2 DWW1 DWW0
DWW[5:0] : Display Window Width Position -> Segment-Width
Segment-Width = (Segment Number / 8) – 1
Default Value:27h
30h AWBR R/W
AWB7 AWB6 AWB5 AWB4 AWB3 AWB2 AWB1 AWB0
AWT[7:0] : Active Window Bottom Position->Common-Bottom
Default Value:efh
31h DWHR R/W
DWH7 DWH6 DWH5 DWH4 DWH3 DWH2 DWH1 DWH0
DWH[7:0] : Display Window Bottom Position->Common-Height
Common-Height = LCD Common Number – 1
Default Value:efh
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Register Table Summary (cont’)
Reg.
Add
Reg.
Name R/W
D7 D6 D5 D4 D3 D2 D1 D0
Descriptions
A1h
(not applicable)
KSCR R/W
KEN
KSZ
KDT1 KDT0
--
KF2 KF1 KF0
KEN : Key Scan Enable Bit
1=enable; 0=disable
KSZ : Key Scan Matrix Selection
1=4x4; 0=8x8
KDT1~KDT0 : Key Scan Data Sampling Times
00=2xFRM; 01=4xFRM; 10=8xFRM; 11=16xFRM
KF2~KF0 : Key Scan Frequency Selection
000= 2xFRM, 001=4xFRM; 010=8xFRM; 011=16xFRM
100= 32xFRM, 001=64xFRM; 010=128xFRM; 011=256xFRM
A2h
(not applicable)
KSDR R
KC7 KC6 KC5 KC4 KC3 KC2 KC1 KC0
KC7~KC0 : Key Scan Output
A3h
(not applicable)
KSER R
KR7 KR6 KR5 KR4 KR3 KR2 KR1 KR0
KR7~KR0 : Key Scan Data Input
B0h
(not applicable)
INTX R/W
-- --
IX5 IX4 IX3 IX2 IX1 IX0
IX5~IX0 : Interrupt Column Setup Register
B1h
(not applicable)
INTY R/W
IY7 IY6 IY5 IY4 IY3 IY2 IY1 IY0
IY7~IY0 : Interrupt Row Setup Register
C0h
(not applicable)
TPCR R/W
AZEN
AZOE
--
SCAN
AS3 AS2 AS1 AS0
AZEN : Touch Panel Function
1=enable; 0=disable
AZOE : Touch Panel Data Output
1=enable; 0=disable
SCAN : Touch Panel Scan
1=enable; 0=disable
AS3~AS0 : Touch Panel Control Bits
C1h
(not applicable)
TPSR R/W
ARDY
ADET
1 1
AF1 FA0
-- --
ARDY : ADC Data Convert State
1=convert complete; 0=convert incomplete
ADET : Touch Event Indicate
1=touched; 0=untouched
C8h
(not applicable)
TPXR R
TPX9 TPX8 TPX7 TPX6 TPX5 TPX4 TPX3 TPX2
TPX9~TPX2 : Touch Panel Segment data D9~D2
C9h
(not applicable)
RPYR R
TPY9 TPY8 TPY7 TPY6 TPY5 TPY4 TPY3 TPY2
TPY9~TPX2 : Touch Panel Common data D9~D2
CAh
(not applicable)
TPZR R
TPX1 TPX0
-- --
TPY1 TPY0
-- --
TPX1~TPX0 : Touch Panel Segment data D1~D0
TPY1~TPY0 : Touch Panel Common data D1~D0
D0h LCCR R/W
DZEN
-- --
DAC4 DAC3 DAC2 DAC1 DAC0
DZEN : LCD contrast control
1=disable; 0=enable
DAC4~DAC0 : LCD Contrast Control Value
E0h PNDR R/W
FD7 FD6 FD5 FD4 FD3 FD2 FD1 FD0
FD7~FD0 : Pattern Data Register / Display Times of Gray Mode
F0h FNCR R/W
TNS
BNK
RM1 RM0
FDA
ASC
ABS1 ABS0
TNS : External Char ROM
1=enable; 0=disable
BNK : ROM BANK Selection
1=Lower 256k ROM; 0=upper 256k ROM
RM1~RM0 : Font ROM Translate
00=GB(256k); 01=BIG5(512k); 10=GB(512k)
FDA : Fill Data to DDRAM
1=fill data to DDRAM enable; 0=no action;
ASC : Font ROM range select
1=decode as ASCII; 0=auto
ABS1~ABS0 : ASCII Block Selection
00=map to ASCII block 0; 01=map to ASCII block 1;
10=map to ASCII block 2; 11=map to ASCII block 3
F1h FVHT R/W
FH1 FH0
FV1 FV0
1 1 1 1
FH1~FV0 : Font Horizontal Size
00=1x; 01=2x; 10=3x; 11=4x
FV1~FV0 : Font Vertical Size
00=1x; 01=2x; 10=3x; 11=4x
Note:
*1. It is suggested to check the BUSY before sending the Control Data.
*2. For the details, please refer to RA8806 Data sheet.
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4.7 Initialization Setting Example
The following setting should be issue to LCD module after hardware reset.
(example could be adjusted, if necessary.)
Register
Add
Register
Name
Value
(binary)
Value
(hex) Note
00h WLCR 0000 0100 04 Power Mode = Normal Mode
Software Reset = Normal Operation
Display mode = Graphical Mode
Display on
Full screen blinking control = normal (no blinking)
Full screen inverse = normal (no inverse)
01h MISC 0110 1000 68 Eliminating Flicker = normal
Busy is High active
XCK = CLK/2
SEG/COM order are normal order
03h ADSR 0000 0000 00 Scrolling function is disable
0Fh INTR 0000 0000 00 Set interrupts are disable
10h WCCR 0000 0110 06 Auto-increase Cursor Position
Chinese/English char alignment = disable
Store Current Data to DDRAM = directly
Set Bold font (char mode only) = normal
Font rotae mode = disable
Cursor on
Cursor blink
11h DWLR 1110 0000 E0 Cursor Height = 15 pixels
Line Distance = 1 pixel
20h AWRR 0010 0111 27 Active Window Right Register = 40
21h DWRR 0010 0111 27 Display Window Right Register = 40
30h AWBR 1110 1111 EF Active Window Bottom Register = 240
31h DWBR 1110 1111 EF Display Window Bottom Register = 240
40h AWLR 0000 0000 00 Active Window Left Register = 00
50h AWTR 0000 0000 00 Active Window Top Register = 00
90h SCCR 0110 1010 6A Idle Time set (set to ~66Hz, when system clock=6MHz)
F0h FNCR 1000 0000 80 Memory Clear Function = no action
F1h FVHT 0000 0000 00 Font is normal
Note:
Others un-mentioned registers are using its hardware reset default value.
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5. Design and Handling Precaution
1. The LCD panel is made by glass. Any mechanical shock (eg. dropping form high place)
will damage the LCD module.
2. Do not add excessive force on the surface of the display, which may cause the Display
color change abnormally.
3. The polarizer on the LCD is easily get scratched. If possible, do not remove the LCD
protective film until the last step of installation.
4. Never attempt to disassemble or rework the LCD module.
5. Only Clean the LCD with Isopropyl Alcohol or Ethyl Alcohol. Other solvents (eg. water)
may damage the LCD.
6. When mounting the LCD module, make sure that it is free form twisting, warping and
distortion.
7. Ensure to provide enough space (with cushion) between case and LCD panel to
prevent external force adding on it, or it may cause damage to the LCD or degrade the
display result.
8. Only hold the LCD module by its side. Never hold LCD module by add force on the heat
seal or TAB.
9. Never add force to component of the LCD module. It may cause invisible damage or
degrade of the reliability.
10. LCD module could be easily damaged by static electricity. Be careful to maintain an
optimum anti-static work environment to protect the LCD module.
11. When peeling off the protective film from LCD, static charge may cause abnormal
display pattern. It is normal and will resume to normal in a short while.
12. Take care and prevent get hurt by the LCD panel sharp edge.
13. Never operate the LCD module exceed the absolute maximum ratings.
14. Keep the signal line as short as possible to prevent noisy signal applying to LCD
module.
15. Never apply signal to the LCD module without power supply.
16. IC chip (eg. TAB or COG) is sensitive to the light. Strong lighting environment could
possibly cause malfunction. Light sealing structure casing is recommend.
17. LCD module reliability may be reduced by temperature shock.
18. When storing the LCD module, avoid exposure to the direct sunlight, high humidity, high
temperature or low temperature. They may damage or degrade the LCD module
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