Topway LM8053-1 User manual

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LM8053-1
LCD Module User Manual
Shenzhen TOPWAY Technology Co., Ltd.
Rev. Descriptions Release Date
0.1 New release 2007-08-09
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TOPWAY LCD Module User Manual LM8053-1
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Document Name: LM8053-1-Manual-Rev0.1.DOC
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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
4. Function Specifications .......................................................................................................... 7
4.1 Adjusting the Display Contrast .............................................................................................................. 7
4.2 Resetting the LCD module..................................................................................................................... 7
4.3 Display Pixel Map .................................................................................................................................. 7
4.4 Control Data and Command.................................................................................................................. 8
4.5 Register Table ....................................................................................................................................... 8
4.6 Initialization Setting Example............................................................................................................... 11
5. Design and Handling Precaution ......................................................................................... 12
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TOPWAY LCD Module User Manual LM8053-1
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1. Basic Specifications
1.1 Display Specifications
1) LCD Display Mode : STN, Positive, Transflective
2) Display Color : Display Data = “1” : Deep Blue (*1)
: Display Data = “0” : Light Gray (*2)
3) Viewing Angle : 6 H
4) Driving Method : 1/80 duty, 1/10 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 : 93.0 x 70.0 x 12.1MAX
see attached Outline Drawing for details
1.3 Block Diagram
LCD Panel
160 x 80 pixels
RS, /RD, /WR
DB0 - DB7
BUSY, /CS, /RST
BLA, BL
K
COMMON
Driver
VOUT, V0
VDD, VSS
Power and
Booster Circuit
LED Backlight Circuit
RA8803
or equivalent
SEGMENT
Drive
r
SEGMENT
Drive
r
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1.4 Terminal Functions
Pin
No.
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 RS Input Register Select
RS=HIGH: data on DB0 to DB7 is display data
RS=LOW: data on DB0 to DB7 is control data
5 /WR Input Write enable input, active LOW
6 /RD Input Read enable input, active LOW
7 DB0
: :
14 DB7
I/O 8-bit bi-directional data bus
15 /CS Input Chip Select Signal
/CS=LOW: Data IO is enabled
16 BUSY Output Controller busy signal,
MCU should poll this signal before accessing the LCD module
17 /RST Input Reset Signal:
/RST = L, Reset the LCD Module
/RST = H, Normal Running
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:
For enable BUSY output, the REG[A0] D0, D1, D2 or D3 should be set to hi.
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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.
2. Electrical Characteristics
2.1 DC Characteristics
VSS=0V, VDD =3.3V, TOP =25°C
Items Symbol MIN. TYP. MAX. Unit Applicable Pin
Operating Voltage VDD 3.1 3.3 3.6 V
VDD
Input High Voltage VIN 0.8xVDD - VDD V
DB0~DB7, /WR, /RD, /CS,
RS, /RST
Input Low Voltage VIN VSS - 0.1xVDD V
DB0~DB7, /WR, /RD, /CS,
RS, /RST
Operating Current IDD - 7.9 22.0 mA
VDD
2.2 LED Backlight Circuit Characteristics
BLK=0V, IfBLA=68mA, TOP =25°C
Items Symbol MIN. TYP. MAX. Unit Applicable Pin
Forward Voltage VfBLA - 3.3 - V
BLA
Forward Current IfBLA - 68 90 mA
BLA
Cautions:
Exceeding the recommended driving current could cause substantial damage to the backlight and shorten its lifetime.
BL
K
BLA
No. of LED = 4pcs
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2.3 AC Characteristics
VSS=0V, VDD=3.3V, TOP=25°C
Item Symbol MIN. TYP. MAX. Unit
Address Hold Time tah8 13 - - Ns
Address Setup Time taw8 79 - - Ns
System Cycle Time tcyc8 1000 - - Ns
Strobe Pulse Width tcc8 500 - - Ns
Data Setup Time tds8 79
Data Hold Time tdh8 13 - - Ns
Data Access Time tacc8 - - 413 Ns
Output disable Time toh8 13 - - Ns
Note: *1. Input signal rise/fall time should be less than 20ns
*2. System clock=8MHz
Bus Timing Diagram
2.3.1 Reset Timing
VSS=0V, VDD=3.3V, TOP=25°C
Item Symbol MIN. TYP. MAX. Unit
Reset Time trst 320 - - ms
Reset LOW pulse width trsth 65 - - ms
Reset Timing Diagram
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3. Function Specifications
3.1 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
3.2 Resetting the LCD module
The LCD module should be initialized by 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)
3.3 Display Pixel Map
1,1
(D7)
2,1
(D6)
3,1
(D5)
4,1
(D4)
5,1
(D3) - - - - - - 156,1
(D4)
157,1
(D3)
158,1
(D2)
159,1
(D1)
160,1
(D0)
1,2
(D7)
2,2
(D6)
3,2
(D5)
4,2
(D4)
5,2
(D3) - - - - - - 156,2
(D4)
157,2
(D3)
158,2
(D2)
159,2
(D1)
160,2
(D0)
1,3
(D7)
2,3
(D6)
3,3
(D5)
4,3
(D4)
5,3
(D3) - - - - - - 156,3
(D4)
157,3
(D3)
158,3
(D2)
159,3
(D1)
160,3
(D0)
: : : : : : : : : : : :
: : : : : : : : : : : :
: : : : : : : : : : : :
1,78
(D7)
2,78
(D6)
3,78
(D5)
4,78
(D4)
5,78
(D3) - - - - - - 156,78
(D4)
157,78
(D3)
158,78
(D2)
159,78
(D1)
160,78
(D0)
1,79
(D7)
2,79
(D6)
3,79
(D5)
4,79
(D4)
5,79
(D3) - - - - - - 156,79 (D4)
157,79
(D3)
158,79
(D2)
159,79
(D1)
160,79
(D0)
1,80
(D7)
2,80
(D6)
3,80
(D5)
4,80
(D4)
5,80
(D3) - - - - - - 156,80
(D4)
157,80
(D3)
158,80
(D2)
159,80
(D1)
160,80
(D0)
Pixel mapping (Top View)
Based on the top view of the LCD module,
the 1, 1 (x, y) pixel is the upper-left pixel;
the 160, 80 (x, y) pixel is the lower-right pixel.
Note:
*1. For the details of memory mapping please refer to RA8803 datasheet.
LCD module
VDD
V0
VOUT
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3.4 Control Data and Command
The LCD module setting is controlled by the internal Register Values.
The Register Address and Register Value should be issued in sequence and they are addressed
as Control Data.
A full command sequence should be as follow.
Steps /RD /WR RS Data (DB0~ DB7)
1st 1 0 0 Register Address
2nd 1 0 0 Register Value
3.5 Register Table Summary
Reg.
Add
Reg.
Name R/W
D7 D6 D5 D4 D3 D2 D1 D0
Descriptions
00h WLCR R/W
PW1 PW0
SR
--
CG
DP DK DV
PW1~PW0 : Power Mode
11=Normal Mode; 00=Off Mode
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 CBTR); 0=normal;
DV : Full screen inverse control
1=normal; 0=inversed
01h MISC R/W
1
CKN
1
PLR
-- --
CKB1 CKB0
CKN : Clock output Control (not applicable)
1=enable; 0=disable
PLR : Interrupt and Busy Polarity (not applicable)
1=active High; 0=active low
CKB1~CKB0 : Clock Speed Selection
00=3MHz; 01=4MHz; 10=8MHz; 11=12MHz
02h APSR R/W
-- --
SP1 SP0
ORA
--
SRFS
--
SP1~SP0 : ROM/RAM reading speed
00=speed0; 01=speed1; 10=speed2; 11=speed3
ORA : Font ROM Readable
1=enable; 0=disable
SRFS : Scrolling Reset for Start
1=enable; 0=disable
03h ADSR R/W
-- -- -- --
DADR
AUCM
AUSG
SGCM
DADR : Display RAM Order (byte)
1=reverse; 0=normal
AUCM : Common Auto Scrolling
1=enable; 0=disable
AUSG : Segment Auto Scrolling
1=enable; 0=disable
Common or Segment Scrolling Selection
1=Segment Scrolling; 0=Common Scrolling
10h WCCR R/W
ARI
ALG
WDI
WBC
AIX
CP CK
CSD
ARI : Auto-increase Cursor Position (in reading DDRAM operation)
1=enable; 0=disable
ALG : Chinese/English char alignment
1=enable; 0=disable
WDI : Store Current Data to DDRAM
1=directly; 0=invertly
WBC : Set Bold font (char mode only)
1=bold; 0=normal
AIX : Auto-increase Cursor Position (in writing DDRAM operation)
1=enable; 0=disable
CP : Cursor display control
1=on; 0=off
CK : Cursor blink control
1=blinking; 0=no blinking
CSD : Set cursor width
1=auto adjust, 0=fix width
11h DWLR R/W
CR3 CR2 CR1 CR0
DY3 DY2 DY1 DY0
CR3~CR0 : Cursor Height
DY3~DY0 : Line Distance
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Register Table Summary (cont’)
Reg.
Add
Reg.
Name R/W
D7 D6 D5 D4 D3 D2 D1 D0
Descriptions
12h MAMR R/W
GIM
RM2 RM1 RM0
OP1 OP2
WM1 WM0
GIM : Graphic Mode Cursor Auto Shifting Direction
1=Horizontal then Vertical; 0=Vertical then Horizontal
RM2~RM0 : Display Layer Selection
001=page1 only; 010=page2 only;
011=combine two layer; 000=gray scale mode
110=extended mode1, 111=extended mode2
OP1~OP2 : two layer mode setting
00=OR; 01=XOR; 10=NOR; 11=AND
WM1~WM0 : Layer Read/Write Selection
00=page0; 01=page1; 10=page2;
11=page1 & page2 at the same time
20h AWRR R/W
-- --
X5 X4 X3 X2 X1 X0
X5~X0: Active Window Right Register
21h DWRR R/W
-- --
A5 A4 A3 A2 A1 A0
A5~A0 : Display Window Right Register
30h AWBR R/W
Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0
Y7~Y0 : Active Window Bottom Register
31h DWBR R/W
B7 B6 B5 B4 B3 B2 B1 B0
B7~B0 : Display Window Bottom Register
40h AWLR R/W
-- --
SS5 SS4 SS3 SS2 SS1 SS0
SS5~SS0 : Active Window Left Register
41h DWLR R/W
-- --
C5 C4 C3 C2 C1 C0
C5~C0 : Display Window Left Register
50h AWTR R/W
SC7 SC6 SC5 SC4 SC3 SC2 SC1 SC0
SC7~SC0 : Active Window Top Register
51h DWTR R/W
D7 D6 D5 D4 D3 D2 D1 D0
D7~D0 : Display Window Top Register
60h CPXR R/W
-- --
RS5 RS4 RS3 RS2 RS1 RS0
RS5~RS0 : Cursor Poison X Register
61h BGSG R/W
-- --
DS5 DS4 DS3 DS2 DS1 DS0
DS5~DS0 : Segment Start Position of Scrolling Mode
70h CPYR R/W
RC7 RC6 RC5 RC4 RC3 RC2 RC1 RC0
RC7~RC0 : Cursor Position Y Register
71h BGCM R/W
CB7 CB6 CB5 CB4 CB3 CB2 CB1 CB0
CB7~CB0 : Common Start Position of Scrolling Mode
72h EDCM R/W
CD7 CD6 CD5 CD4 CD3 CD2 CD1 CD0
CD7~CD0 : Common Ending Position of Scrolling Mode
80h BTMR R/W
BT7 BT6 BT5 BT4 BT3 BT2 BT1 BT0
BT7~BT0 : Cursor Blink Time Register
81h FRCA R/W
0 0 0 1 1 1 0 1
Frame Rate Polarity Change at Common_A Register
90h SCCR R/W
CK7 CK6 CK5 CK4 CK3 CK2 CK1 CK0
CK7~CK0 : Shift Clock Control Register
91h FRCB R/W
-- -- -- -- -- -- -- --
Reserved
A0h INTR R/W
INK
INT
INX INY
MSK
MST
MSX MSY
INK : Key Scan Interrupt Flag (read only)
1=detected; 0=not detected
INT : Touch Panel detect (read only)
1=touched; 0=untouched
INX : Cursor Column status (read only)
1=equal to INTX; 0=not equal to INTX
INTY : Cursor Row status (read only)
1=equal to INTY; 0=not equal to INTY
MSZ : Key Scan Interrupt output and BUSY output
1=enable key scan interrupt; 0=disable key scan interrupt
MSA : Touch Panel interrupt output and BUSY output
1=enable; 0=disable
MSX : INTX event interrupt output and BUSY output
1=enable; 0=disable
MSY : INTY event interrupt output and BUSY output
1=enable; 0=disable
(any bit of D0~D3 set to “1” could enable the busy signal output)
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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
(not applicable)
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 RA8803 Data sheet.
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3.6 Initialization Setting Example
The following setting should be issue to LCD module after hardware reset.
(It is a basic example only; it could be adjusted if necessary.)
Register
Add
Register
Name
Value
(binary)
Value
(hex) Note
00h WLCR 1100 1101 CD Power Mode = Normal Mode
Software Reset = Normal Operation
Display mode = Character Mode
Display on off control = normal display
Full screen blinking control = normal (no blinking)
Full screen inverse = normal (no inverse)
10h WCCR 0010 1001 29 Auto-increase Cursor Position (in reading DDRAM operation) = disable
Chinese/English char alignment = disable
Store Current Data to DDRAM = directly
Set Bold font (char mode only) = normal
Auto-increase Cursor Position (in writing DDRAM operation) = enable
Cursor display control = off
Cursor blink control = no blinking
Set cursor width = auto adjust
11h DWLR 0001 0000 10 Cursor Height = 1
Line Distance = 0
20h AWRR 0001 0011 13 Active Window Right Register = 13
21h DWRR 0001 0011 13 Display Window Right Register = 13
30h AWBR 0101 0000 50 Active Window Bottom Register = 50
31h DWBR 0101 0000 50 Display Window Bottom Register = 50
40h AWLR 0000 0000 00 Active Window Left Register = 00
41h DWLR 0000 0000 00 Display Window Left Register = 00
50h AWTR 0000 0000 00 Active Window Top Register = 00
51h DWTR 0000 0000 00 Display Window Top Register = 00
81h FRCA 0100 0000 40 Frame Rate Polarity Change at Common_A Register
90h SCCR 0001 1010 1A Shift Clock Control Register (set to ~69Hz, when system clock=3MHz)
A0h INTR 0000 1000 08 Enable the BUSY output with Key Scan Interrupt output
F0h FNCR 1010 0000 A0 External Char ROM = enable
ROM BANK Selection = upper 256k ROM
Font ROM Translate = GB
Fill Data to DDRAM = no action
Font ROM range select = auto
ASCII Block Selection = map to ASCII block 0
Note:
Others un-mentioned registers are using its hardware reset default value.
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4. 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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