TOPWAY

LCD Module User Manual

LM13232CCW

www.topwaysz.com

Document Name: LM13232CCW-Manual-Rev0.2

Page: 9 of 10

4.6 Display Commands (continue)

Function

No.

Instructions

Set reference voltage mode

18

Electronic volume register

set

0 0

**

Electronic

Control value

Set reference voltage register

(Display contrast value)

0 0 1 0 1 0 1 1 0 S

19

Sleep Mode Set

0 0 0 0 0 0 0 0 0 0

Sleep Mode (2 byte command)

S=0, sleep mode

S=1, normal mode

0 0 1 1 1 1 1 0 0 0

20

Booster Ratio Set

0 0 0 0 0 0 0 0 Ratio

Booster Ratio (2 byte command)

Ratio=00, 2x, 3x, 4x

Ratio=01, 5x

Ratio=11, 6x

21

NOP

0 0 1 1 1 0 0 0 1 1 Non-operation command

Note:

*1. Do not use any other command not listed, or the system malfunction may result.

*2. For the details of the Display Commands, please refer to ST7565R data sheet.

4.6.1 Power off the LCD Module

It recommends that enter Sleep Mode before power off the LCD module.

4.6.2 Refreshing The LCD Module

It recommends that the operating modes and display contents be refreshed periodically to prevent

the effect of unexpected noise.