Toshiba satellite a20 series Benutzerhandbuch

1  Hardware Overview 

 

Figure 1-3 is the block diagram of the system unit.  

 

Cloc

k Gen.

ICS

ICS951104

CPUCLK MEMCLK A

GPCLK

PCICLK 48MCLK 14MCLK

P3V

P3V

V

oltage

Regulator

Ther

mal

Sensor

Analog

De

vices

ADM1032

CPU

Intel P

entium 4

DT

Nor

thw

ood

2.53/2.66/2.8/3.06GHz

VID1.2V

PPV

533MHz

Nor

th Br

idge

ALi Sonoma-P4

w/T

rident XP2 Gr

aphics

Host-PCI Br

idge

PCI-PCI Br

idge

Memor

y Controller

Gr

aphics Controller

BGA

645 Balls

PPV P3V BMV B2.5V B3V B5V

LCD

(TFT)

TV encoder

TVXPRESS2

B3V

CR

T I/F

S-VIDEO

P3V P5V B3V

MiniPCI Slot

Wireless LAN

P3V

256 Balls

YEBISU SS

Flute

SD Cont.

(P

elican3)

CardBus

Cont.

(T

oPIC100)

B3V

MCVCCA

PCMCIA/

CardBus

Slot

33MHz

PCI Bus

Expansion

Memor

y

128/256/512MB/1GB

Expansion

Memor

y

128/256/512MB/1GB

Slot0

Slot1

B2.5V

B1.25V

P3V

266MHz

SMB

US

BGA

352 Balls

South Br

idge

ALi M1535+

PCI-South I/O br

idge

IDE, USB1.1,

SM-B

US

, A

C' 97 Modem/A

udio

,

Super I/O

, PIT

, DMA

C

, PIC

,

P

o

w

er management

BIOS R

O

M

4Mbit

P5V

RT

C

bq3285

R3V

P5V

P5V

HDD

Pr

imar

y IDE

Secondar

y IDE

CDPLA

Y Cont.

O2Micro

OZ168

S5V

P2.5V P3V P5V S3V S5V

P

a

rallel P

o

rt

ODD

CD-E5V

P

o

w

e

r Switch

P

anel Switch

EC/KBC

Mitsubishi

K9

S3V

3rd.

  I2C Bus

1st.

  I2C Bus

Int-KB

T

ouch P

A

D

E2PR

OM

Main Batter

y

PSC

MCV

FSNAF*

FIR

P3V

Wireless Switch.

 LED

B3V

MDC

RJ11

SOUND Codec

Analog

De

vices

AD1981B

MIC

Line-IN

A4R7-P4V P3V

AMP

MM1517

SND-E5V

HEADPHONE

SPEAKER

FSNAS*

SD Card

Slot x1

USB2.0 Cont.

NEC

UPD720101

B3V

USB P

o

rt

0

USB P

o

rt

1

USB P

o

rt

2

BT

-P3V

Bluetooth

Module

LAN-E3V

LAN Cont.

Realtek

R

TL8139DL

RJ45