TOPWAY

LCD Module User Manual

LM8053

www.topwaysz.com

Document Name: LM8053-Manual-Rev0.1.doc

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

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.