LM3038 datasheet(4/13 Pages) TOPWAY

4 / 13 page

TOPWAY

LCD Module User Manual

LM3038

URL: www.topwaydisplay.com

www.topwaysz.com

Document Name: LM3038-Manual-Rev0.1.doc

Page: 4 of 13

1.4

Terminal Functions

Descriptions

No.

Name

I/O

Parallel mode (PSB=H)

Serial Mode (PSB=L)

VSS

Power Negative Power Supply, Ground (0V)

VDD

Power Positive Power Supply

No Connection (keep open)

(CS)

Input

RS=H; data read or write

RS=L; Instruction data write or

status busy flag read

Chip Select

CS=H; chip enable

CS=L; chip disable

R/W

(SID)

Input

Read write control

R/W=H; data or status read

R/W=L; data or command write

Serial Input Data

(SCLK)

Input

Enable trigger

Serial Clock

DB0

I/O

DB7

I/O

Three state I/O terminal for display

data or instruction data

In 4 bit mode, DB3~DB0 could

leave open or pull-up

Leave open or pull-up

PSB

Input

Interface selection:

PSB=L; serial mode

PSB=H; 8 or 4 bit parallel bus mode

No Connection (keep open)

/RST

Input

System reset; low active

No Connection (keep open)

BLA

Power Positive Power Supply for LED backlight

BLK

Power Negative Power Supply for LED backlight

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