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Main board – Texas Instruments 51X User Manual

Page 41

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EXTERNAL

VGA MONITOR

MAIN BOARD

XD BUS

SD BUS

Input From

AC Adapter

SYSTEM &

VGA BIOS

XD BUS

Super I/O

Controller

RS-232
Serial Port

Drivers/
Receivers

C&T 65540

Intel
100 MHz
Penti um
Processor

Vid eo
Controller

System
Controller

State Machine
& Glue Logic

PCMCIA Adapter

Internal Hard Drive

Power Supply
Section

Internal
Tou chp ad

Keyboard/PS2
Mouse Logic

M e mo ry
Board

PCMCIA Option Slot(s)

512KB
Video RAM

Clock Generator

640 X 480

VGA LC D

Inverter
Board

Located internal
to the LCD
Assembly

RAM
Expansion
Modul es

Internal Floppy Drive

Parallel Port

Internal LCD Display

Internal Keyboard

Figure 4-1 Notebook Functional Block Diagram

4-2 Theory of Operation