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LM2068R-3_V01 데이터시트(Datasheet) 1 Page - Shenzhen TOPWAY Technology Co., Ltd

부품명 LM2068R-3_V01
상세내용  LCD Module User Manual
PDF  12 Pages
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제조사  TOPWAY [Shenzhen TOPWAY Technology Co., Ltd]
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Document Name: LM2068R-3-Manual-Rev0.2
Page: 1 of 12
LM2068R-3
LCD Module User Manual
Prepared by:
黄德新
Checked by:
Approved by:
Date:2019-06-19
Date:
Date:
Rev.
Descriptions
Release Date
0.1
Preliminary new release
2007-07-13
0.2
Update 2. Absolute Maximum Ratings
2019-06-19
 2 page
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TOPWAY
LCD Module User Manual
LM2068R-3
URL:
www.topwaydisplay.com
www.topwaysz.com
Document Name: LM2068R-3-Manual-Rev0.2
Page: 2 of 12
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 Summary ....................................................................................................................................... 8
4.6
Initialization Setting Example ............................................................................................................................... 11
5.
Design and Handling Precaution ........................................................................................ 12
 3 page
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TOPWAY
LCD Module User Manual
LM2068R-3
URL:
www.topwaydisplay.com
www.topwaysz.com
Document Name: LM2068R-3-Manual-Rev0.2
Page: 3 of 12
1. Basic Specifications
1.1
Display Specifications
1) LCD Display Mode
: STN-Blue, Negative, Transmissive
2) Display Color
: Display Data = “1” : Light Gray (*1)
: Display Data = “0” : Dark Blue (*2)
3) Viewing Angle
: 9 H
4) Driving Method
: 1/240 duty, 1/12 bias
5) Backlight
: White LED
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
: 99.5 x 71.1 x 9.5 (exclude FPC terminal)
see attached Outline Drawing for details
1.3
Block Diagram
320 x 240 pixels
LCD Panel
S6B0794
or equivalent
VOUT
VDD, VSS, V0
S6B0794
or equivalent
COM1
:
COM160
COM161
:
COM240
Power
& Booster
Circuit
/WR, /RD, /CS, RS, /RST
DB0~DB7
BUSY
RA8803 or equivalent
BLA
BLK
Backlight Circuit
 4 page
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Document Name: LM2068R-3-Manual-Rev0.2
Page: 4 of 12
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
/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: data on DB0 to DB7 is display data
RS=LOW: data on DB0 to DB7 is control data
8
/RST
Input
Reset Signal:
/RST = L, Reset the LCD Module
/RST = H, Normal Running
9
DB0
I/O
8-bit bi-directional data bus
:
:
16
DB7
17
BUSY
OUTPUT
Controller busy signal,
MCU should poll this signal before accessing the LCD module
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.
 5 page
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Document Name: LM2068R-3-Manual-Rev0.2
Page: 5 of 12
2. Absolute Maximum Ratings
Items
Symbol
Min.
Max.
Unit
Condition
Supply Voltage
VDD
0
+5.5
V
VSS = 0V
Input Voltage
VIN
VSS-0.3
VDD+0.3
V
VSS = 0V
Operating Temperature
TOP
-30
+70
°C
No Condensation
Storage Temperature
TST
-40
+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 =3.3V, TOP =25°C
Items
Symbol
MIN.
TYP.
MAX.
Unit
Applicable Pin
Operating Voltage
VDD
3.0
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
0
-
0.1x VDD
V
DB0~DB7, /WR, /RD, /CS,
RS, /RST
Operating Current
IDD
-
30
120
mA
VDD
3.2
LED Backlight Circuit Characteristics
BLK=0V, IfBLA=96mA, TOP =25°C
Items
Symbol
MIN.
TYP.
MAX.
Unit
Applicable Pin
Forward Voltage
VfBLA
-
3.3
-
V
BLA
Forward Current
IfBLA
-
96
130
mA
BLA
Cautions:
Exceeding the recommended driving current could cause substantial damage to the backlight and shorten its lifetime.
VSS
BLA
No. of LED = 6pcs
 6 page
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TOPWAY
LCD Module User Manual
LM2068R-3
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Document Name: LM2068R-3-Manual-Rev0.2
Page: 6 of 12
3.3
AC Characteristics
VSS=0V, VDD=3.3V, System Clock=8MHz, 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
3.3.1
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
 7 page
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LCD Module User Manual
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Document Name: LM2068R-3-Manual-Rev0.2
Page: 7 of 12
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 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
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)
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.
LCD module
VSS
V0
VOUT
 8 page
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TOPWAY
LCD Module User Manual
LM2068R-3
URL:
www.topwaydisplay.com
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Document Name: LM2068R-3-Manual-Rev0.2
Page: 8 of 12
4.4
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)
1
st
1
0
0
Register Address
2
nd
1
0
0
Register Value
4.5
Register Table Summary
Reg.
Add
Reg.
Name
R/W
Descriptions
00h
WLCR
R/W
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
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 : 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 : 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 : 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~CR0 : Cursor Height
DY3~DY0 : Line Distance
 9 page
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TOPWAY
LCD Module User Manual
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Document Name: LM2068R-3-Manual-Rev0.2
Page: 9 of 12
Register Table Summary (cont’)
Reg.
Add
Reg.
Name
R/W
Descriptions
12h
MAMR
R/W
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~X0: Active Window Right Register
21h
DWRR
R/W
A5~A0 : Display Window Right Register
30h
AWBR
R/W
Y7~Y0 : Active Window Bottom Register
31h
DWBR
R/W
B7~B0 : Display Window Bottom Register
40h
AWLR
R/W
SS5~SS0 : Active Window Left Register
41h
DWLR
R/W
C5~C0 : Display Window Left Register
50h
AWTR
R/W
SC7~SC0 : Active Window Top Register
51h
DWTR
R/W
D7~D0 : Display Window Top Register
60h
CPXR
R/W
RS5~RS0 : Cursor Poison X Register
61h
BGSG
R/W
DS5~DS0 : Segment Start Position of Scrolling Mode
70h
CPYR
R/W
RC7~RC0 : Cursor Position Y Register
71h
BGCM
R/W
CB7~CB0 : Common Start Position of Scrolling Mode
72h
EDCM
R/W
CD7~CD0 : Common Ending Position of Scrolling Mode
80h
BTMR
R/W
BT7~BT0 : Cursor Blink Time Register
81h
FRCA
R/W
Frame Rate Polarity Change at Common_A Register
90h
SCCR
R/W
CK7~CK0 : Shift Clock Control Register
91h
FRCB
R/W
Reserved
A0h
INTR
R/W
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)
 10 page
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LCD Module User Manual
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Document Name: LM2068R-3-Manual-Rev0.2
Page: 10 of 12
Register Table Summary (cont’)
Reg.
Add
Reg.
Name
R/W
Descriptions
A1h
(not applicable)
KSCR
R/W
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~KC0 : Key Scan Output
A3h
(not applicable)
KSER
R
KR7~KR0 : Key Scan Data Input
B0h
(not applicable)
INTX
R/W
IX5~IX0 : Interrupt Column Setup Register
B1h
(not applicable)
INTY
R/W
IY7~IY0 : Interrupt Row Setup Register
C0h
(not applicable)
TPCR
R/W
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 : ADC Data Convert State
1=convert complete; 0=convert incomplete
ADET : Touch Event Indicate
1=touched; 0=untouched
C8h
(not applicable)
TPXR
R
TPX9~TPX2 : Touch Panel Segment data D9~D2
C9h
(not applicable)
RPYR
R
TPY9~TPX2 : Touch Panel Common data D9~D2
CAh
(not applicable)
TPZR
R
TPX1~TPX0 : Touch Panel Segment data D1~D0
TPY1~TPY0 : Touch Panel Common data D1~D0
D0h
LCCR
R/W
DZEN : LCD contrast control
1=disable; 0=enable
DAC4~DAC0 : LCD Contrast Control Value
E0h
PNDR
R/W
FD7~FD0 : Pattern Data Register / Display Times of Gray Mode
F0h
FNCR
R/W
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~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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