Texas Instruments 60X - Manual (Page 47)

Theory of Operation 4-1
4
Theory of Operation
4.1 Introduction
This section contains a general block diagram theory of operation description of the
Extensa 60x/65x Series Notebook Computers.
Note: Various internal components may change on future models and busses/
bus speeds are subject to change.
4.2 Notebook Functional Overview
The Extensa 60x/65x Series Notebooks consist of eight major functions or sections
including:
♦
System Processor - implemented on the Motherboard Assembly
♦
Memory Subsystem - implemented on the Motherboard Assembly
♦
Processor/Memory/I/O Control - implemented on the Motherboard
Assembly
♦
Keyboard Subsystem - implemented on the Motherboard and the Keyboard
Assemblies
♦
Video Subsystem - implemented on the Top Board and on the LCD Display
Assembly
♦
Sound Subsystem - implemented on the Motherboard Assembly.
♦
Touchpad Mouse Subsystem- implemented on the Touchpad assembly and
on the Motherboard Assembly
♦
Hard Disk Drive Subsystem - implemented on the Motherboard Assembly
and the Hard Disk Drive Assembly
♦
Floppy Disk Drive Subsystem - implemented on the Motherboard and Floppy
Disk Drive Assembly
♦
Power Subsystem - implemented on the Power Supply Board, Inverter Board,
battery packs, and AC adapter