6.Keyboard Controller

6.1Overview

This terminal is equipped with a sub-CPU dedicated to controlling the keyboard, touch panel, backlight, and various sensors. This chapter describes major tasks assigned to this sub-CPU.

Main CPU

LCD Brightness

 

El Backlight

 

 

 

Command

Sub-CPU

Data

 

 

 

Buzzer

Temperature Sensor

Illumination Sensor

Battery Voltage

Sensor

Volume

Touch Panel

Keyboard

Fig. 6.1

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Casio IT-2000W manual Keyboard Controller Overview