Chapter, 6 keyboard controller 87 6.1 overview 87, Keyboard controller 6.1 overview – Casio IT-2000W User Manual
Page 87
87
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.
Fig. 6.1
Main CPU
Sub-CPU
Temperature Sensor
Illumination Sensor
Battery Voltage
Sensor
Buzzer
Volume
El Backlight
LCD Brightness
Keyboard
Touch Panel
Command
Data