Keyboard Controller; Overview; Chapter 6 Keyboard Controller - Casio IT-2000W Technical Reference Manual

6. Keyboard Controller

6.1 Overview

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
Command
Sub-CPU
Data
Buzzer
Volume
Fig. 6.1
87
El Backlight
Temperature Sensor
Illumination Sensor
Battery Voltage
Touch Panel
Sensor
Keyboard