LM2088ECW-9

LM2088ECW-9

LCD Module User Manual

Prepared by:

Checked by:

Approved by:

Chen Rili

Date: 2017-08-31

Date:

Rev. Descriptions

Release Date

0.1

New release

2017-08-31

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Document Name: LM2088ECW-9-Manual-Rev0.1

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LCD Module User Manual

LM2088ECW-9

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 .......................................................................................................................................... 7

4. Function Specifications ......................................................................................................... 8

4.1

Adjusting the Display Contrast............................................................................................................... 8

4.2

Resetting the LCD module ..................................................................................................................... 8

4.3

Jumper Functions .................................................................................................................................. 8

4.4

Display Pixel Map .................................................................................................................................. 8

4.5

Command Summary .............................................................................................................................. 9

4.6

Initialization Setting Example ............................................................................................................... 10

5. Design and Handling Precaution ........................................................................................ 11

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LCD Module User Manual

LM2088ECW-9

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

: 6 H

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

*3. Fine Contrast adjustment function is necessary in application design for optimal display result

1.2 Mechanical Specifications

1) Outline Dimension

: 160.0 x 109.0 x 11.2 MAX.

see attached Outline Drawing for details

1.3 Block Diagram

BLA

BLK

Backlight Circuit

320 x 240 pixels

LCD Panel

VDD

VOUT

Booster &

SEGMENT

Power Circuit

VSS

Driver

/WR,/RD,A0, /CS,/RST

DB0~DB7

S1D13700

/WAIT

or equivalent

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LM2088ECW-9

1.4 Terminal Functions

Pin No.

K1&K4

Name

I/O

Descriptions

VSS

Power 0V Power Supply, GND

VDD

Power Positive Power Supply

Input

LCD Contrast Reference Input

/WR

Input

Write enable input, active LOW

/RD

Input

Read enable input, active LOW

/CS

Input

Chip Select Signal

/CS=LOW: Data IO is enabled

Input

Data Type Select

A0=H: command write, display data or cursor add read

A0=L: status flag read, display data or parameter write

/RST

Input

Reset Signal:

/RES = L, Reset the LCD Module

/RES = H, Normal Running

DB0

I/O

8-bit bi-directional data bus

DB7

/WAIT

Output Wait signal (*1)

VOUT

Power Power Booster Output for V0

BLA

Power Positive Power Supply for LED backlight

BLK

Power Negative Power Supply for LED backlight

SEL1

Input

80 mode or 68 mode selection(*2)

note:

*1.

If there is no read write activity, /WAIT will be in HZ state.

*2.

SEL1 fixed to low (80 mode) by internal Jumper JP8

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LM2088ECW-9

2. Absolute Maximum Ratings

Items

Symbol

Min.

Max.

Unit

Condition

Supply Voltage

V DD

+7.0

V SS = 0V

Input Voltage

V IN

V SS -0.3

V DD +0.3

V SS = 0V

Operating Temperature

T OP

-20

+70

 C

No Condensation

Storage Temperature

T ST

-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

V SS =0V, V DD =5.0V, T OP =25  C

Items

Symbol

MIN.

TYP.

MAX.

Unit Applicable Pin

Operating Voltage

V DD

4.5

5.0

5.5

VDD

DB0~DB7, /WR,

Input High Voltage

V IN

0.8xVDD

VDD

/RD, /CS, A0, /RST

DB0~DB7, /WR,

Input Low Voltage

V IN

VSS

0.15xVDD

/RD, /CS, A0, /RST

Operating Current

I DD

24.4

mA VDD

Note:

*1. Frame freq. at 131Hz

3.2 LED Backlight Circuit Characteristics

BLK=0V, BLA=5.0V, T OP =25  C

Items

Symbol

MIN.

TYP.

MAX.

Unit

Applicable Pin

Forward Voltage

BLA

5.0

BLA

Forward Current

I BLA

145

180

BLA

Cautions:

Exceeding the recommended driving current could cause substantial damage to the backlight and shorten its lifetime.

BLA

BLK

No. of LED = 9pcs

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LM2088ECW-9

3.3 AC Characteristics

3.3.1 8080 Mode

V SS =0V, V DD =5.0V, T OP =25  C

Item

Symbol

MIN.

TYP.

MAX.

Unit

/CS setup time

A0 setup time

/WR, /RD falling edge to /WAIT driven low

1.6

D[7:0] setup time to /WR rising edge (write cycle)

(*2)

/RD falling edge to D[7:0] driven (read cycle)

/CS hold time

A0 hold time

/RD, /WR rising edge to WAIT# high impedance

1.6

D[7:0] hold time from /WR rising edge (write cycle)

6.5

D[7:0] hold time from /CS rising edge (read cycle)

t10

2.4

/WAIT rising edge to valid Data

t11

(*3)

/RD, /WR pulse inactive time

t12

(*4)

/WAIT pulse active time

t13

(*5)

Note:

*1. Ts

= System clock period

*2. t4min = 2Ts + 5

*3. t11max = 1Ts + 7 (for 5.0V)

*4. t12min = 1Ts (for a read cycle followed by a read or write cycle)

= 2Ts + 2 (for a write cycle followed by a write cycle)

= 5Ts + 2 (for a write cycle followed by a read cycle)

*5. t13max = 4Ts + 2

*6. Input signal rise/fall time should be less than 4.5ns

*7. for details, please see the S1D13700 data sheet

Bus Timing Diagram

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LM2088ECW-9

3.4 Reset Timing

V SS =0V, V DD =5.0V, T OP =25  C

Item

Symbol

MIN.

TYP.

MAX.

Unit

Oscillator Stable Delay (*1)

4.0

Reset Pulse Duration (*2)

1.3

note:

*1. A delay is required after exiting power save mode. Writing the SYSTEM SET command will exit power

save mode and start the internal oscillator.

*2. It requires a reset pulse after power-on in order to re-initialize its internal state.

Reset Timing Diagram

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4. Function Specifications

4.1 Adjusting the Display Contrast

A Variable-Resistor must be connected to the

VDD

LCD module for providing a reference to V0.

Adjusting the VR will result the change of

VOUT

LCD display contrast.

The recommended value of VR is 25k to 50k

VSS

4.2 Resetting the LCD module

The LCD module should be initialized by hardware reset, using /RST terminal.

4.3

Jumper Functions

4.3.1 Interfacing Setting

Jumper

JP9

JP8

Function Description

Open

Close 8080 mode selected <default>

Open 6800 mode selected

4.3.2 Clock Divider Setting

Jumper

JP4

JP5

JP6

JP7 Function Description

Open

Close Open Close 1/4 clock divider <default>

Open Open Close 1/8 clock divider

Open

Close Close Open 1/16 clock divider

4.4 Display Pixel Map

1,1

2,1

3,1

4,1

5,1

316,1

317,1

318,1

319,1

320,1

(D7)

(D6)

(D5)

(D4)

(D3)

- - -

(D4)

(D3)

(D2)

(D1)

(D0)

1,2

2,2

3,2

4,2

5,2

316,2

317,2

318,2

319,2

320,2

(D7)

(D6)

(D5)

(D4)

(D3)

- - -

(D4)

(D3)

(D2)

(D1)

(D0)

1,3

2,3

3,3

4,3

5,3

316,3

317,3

318,3

319,3

320,3

(D7)

(D6)

(D5)

(D4)

(D3)

- - -

(D4)

(D3)

(D2)

(D1)

(D0)

1,238

2,238

3,238

4,238

5,238

316,238 317,238 318,238 319,238 320,238

(D7)

(D6)

(D5)

(D4)

(D3)

- - -

(D4)

(D3)

(D2)

(D1)

(D0)

1,239

2,239

3,239

4,239

5,239

316,239 317,239 318,239 319,239 320,239

(D7)

(D6)

(D5)

(D4)

(D3)

- - -

(D4)

(D3)

(D2)

(D1)

(D0)

1,240

2,240

3,240

4,240

5,240

316,240 317,240 318,240 319,240 320,240

(D7)

(D6)

(D5)

(D4)

(D3)

- - -

(D4)

(D3)

(D2)

(D1)

(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 S1D13700 datasheet.

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LM2088ECW-9

4.5 Command Summary

Para-

Command meter

HEX Descriptions

SYSTEM

1 1 0 0

40 Init device and display (with 8 parameters)

SET

0 1 0 0

1 W/S M2

M0=0: internal CG ROM

M0=1: internal CG RAM

M2=0: 8-pixel char height

M2=1: 16-pixel char height

W/S=0: single panel drive

W/S=1: dual panel drive

IV=0: Screen top-line correction

IV=1: No screen top-line correction

0 1 0 MOD 0

FX=Horizontal Char Size in pixels – 1 (define the horizontal char size)

MOD=0: 16-line AC drive

MOD=1: two frame AC drive

0 1 0 0

FY=Vertical Char Size in pixels – 1 (define the vertical char size)

0 1 0

C/R

C/R: Character Bytes per Row

0 1 0

TC/R

TC/R: Total Char Bytes per Row (including horizontal blanking)

0 1 0

L/F

L/F: Lines per Frame

0 1 0

APL

APL: Horizontal address range of the virtual screen (low byte)

0 1 0

APH

APH: Horizontal address range of the virtual screen (high byte)

POWER

1 1 0 0

53 Power Save Mode Enable

SAVE

DISP

1 1 0 0

D 58 / 59 Enable and disable display and display flashing (with 1 parameter)

ON/OFF

D=0: Display OFF

D=1: Display ON

0 1 0 FP5 FP4 FP3 FP2 FP1 FP0 FC1 FC0

Each pair of bit in FP sets the attributes of one screen block

SCROLL

1 1 0 0

44 Set display start address and display regions (with 8 or 10 parameters)

0 1 0 A7 A6 A5 A4 A3 A2 A1 A0

Screen Block 1 Start Address (SAD1) LSB

0 1 0 A15 A14 A13 A12 A11 A10 A9 A8

Screen Block 1 Start Address (SAD1) MSB

0 1 0 L7 L6 L5 L4 L3 L2 L1

Screen Block 1 Size Register (SL1)

0 1 0 A7 A6 A5 A4 A3 A2 A1 A0

Screen Block 2 Start Address (SAD2) LSB

0 1 0 A15 A14 A13 A12 A11 A10 A9 A8

Screen Block 2 Start Address (SAD2) MSB

0 1 0 L7 L6 L5 L4 L3 L2 L1

Screen Block 2 Size Register (SL2)

0 1 0 A7 A6 A5 A4 A3 A2 A1 A0

Screen Block 3 Start Address (SAD3) LSB

0 1 0 A15 A14 A13 A12 A11 A10 A9 A8

Screen Block 3 Start Address (SAD3) MSB

0 1 0 A7 A6 A5 A4 A3 A2 A1 A0

Screen Block 4 Start Address (SAD4) LSB

(for dual panel drive and two layer config are select)

P10 0 1 0 A15 A14 A13 A12 A11 A10 A9 A8

Screen Block 4 Start Address (SAD4) MSB

(for dual panel drive and two layer config are select)

CSRFORM

1 1 0 0

5D Set cursor type (with 2 parameters)

0 1 0 0

CRX

0 1 0 CM 0

CRY

CM=0: underscore cursor; CM=1: block cursor

CSRDIR

1 1 0 0

1 CD1 CD0 4C~4F Set Direction of Cursor movement

CD=00: Right; CD=01: Left,; CD=10: Up; CD=11: Down

OVLAY

1 1 0 0

5B Set display overlay format (with 1 parameters)

0 1 0 0

0 OV DM2 DM1 MX1 MX0

CGRAM

1 1 0 0

5C Set Start address of char generator RAM (with 2 parameters)

ADR

0 1 0 A7 A6 A5 A4 A3 A2 A1 A0

SAGL

0 1 0 A15 A14 A13 A12 A11 A10 A9 A8

SAGH

HDOT SCR

1 1 0 0

5A Set horizontal scroll position (with 1 parameters)

0 1 0 0

0 D2 D1 D0

CSRW

1 1 0 0

46 Set cursor address (with 2 parameters)

0 1 0 A7 A6 A5 A4 A3 A2 A1 A0

CSRL

0 1 0 A15 A14 A13 A12 A11 A10 A9 A8

CSRH

CSRR

1 1 0 0

47 Read Cursor Address (with 2 parameters)

1 0 1 A7 A6 A5 A4 A3 A2 A1 A0

CSRL

1 0 1 A15 A14 A13 A12 A11 A10 A9 A8

CSRH

GRAY

1 1 0 0

60 select the gray scale depth (in bits-per-pixel)

SCALE

0 1 0 0

0 BPP1 BPP2

BPP=00: 1 bits-per-pixel; BPP=01: 2 bits-per-pixel;

BPP=10: 4 bits-per-pixel; BPP=01: reserved

MWRITE

1 1 0 0

42 Write to display memory (with n parameters)

0 1 0

Memory Data

Display memory data

: : :

0 1 0

Memory Data

MREAD

1 1 0 0

43 Read from display memory (with n parameters)

1 0 1

Memory Data

Display memory data

: : :

1 0 1

Memory Data

Note:

For details please refer to S1D13700 datasheet.

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4.6 Initialization Setting Example

The following setting should be issue to LCD module after hardware reset.

(example could be adjusted if necessary.)

Value

Command Parameter

(binary)

HEX Descriptions

SYSTEM

0100 0000

Init device and display (with 8 parameters)

SET

0011 0000

M0=0: internal CG ROM

M2=0: 8-pixel char height

W/S=0: single panel drive

IV=1: No screen top-line correction

1000 0111

FX=7: the horizontal char size=7+1=8

WF=1: two frame AC drive

0000 0111

FY=7: the vertical char size=7+1=8

0010 1000

C/R: Character Bytes per Row

0100 1001

TC/R: Total Char Bytes per Row (including horizontal blanking)

1110 1111

L/F: Lines per Frame

0010 1000

APL: Horizontal address range of the virtual screen (low byte)

0000 0000

APH: Horizontal address range of the virtual screen (high byte)

DISP

0101 1001

Display ON

ON/OFF

0000 0100

sets the attributes of screen block (SAD1 on, cursor off)

SCROLL

0100 0100

Set cursor type (with 10 parameters)

0000 0000

SAD 1L

0000 0000

SAD 1H

1110 1111

SL1

0000 0000

SAD 2L (not assigned in this example)

0000 0000

SAD 2H (not assigned in this example)

1110 1111

SL2

0000 0000

SAD3L (not assigned in this example)

0000 0000

SAD3H (not assigned in this example)

CSRFORM

0101 1101

Set cursor type (with 2 parameters)

0000 0111

CRX

0001 0111

CRY

CSRDIR

0100 1100

Set Direction of Cursor movement

OVLAY

0101 1011

Set display overlay format (with 1 parameters)

0000 0101

OV=0: two layer in used; DM1=0: layer 3 as text mode;

DM0=1: layer 1 as graphic mode; MX=01: layer1 XOR Layer 2

HDOT SCR

0101 1010

Set horizontal scroll position (with 1 parameters)

0000 0000

no scroll

GRAY

0110 0000

sel select the gray scale depth (in bits-per-pixel)

SCALE

0000 0000

BPP=00: 1 bits-per-pixel

CSRW

0100 0110

Set cursor address (with 2 parameters)

0000 0000

CSRL

0000 0000

CSRH

MWRITE

0100 0010

Write to display memory (with n parameters)

Memory Data

Display memory data

Memory Data

Note:

For details please refer to S1D13700 datasheet.

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5. Design and Handling Precaution

Please refer to "LCD-Module-Design-Handling-Precaution.pdf".

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