Toshiba T1900 Series Bedienungsanleitung

1.1

Features

The Toshiba T1900 Series

computers are among the highest and most advanced notebook

computers available. Utilizing advanced technology and high-speed components, the T1900

and T1900C offer excellent display legibility, battery operation

and

PC/AT compatibility.

The T1900 Series

computers consist

the following features:

o Microprocessor

The i486SX-20 microprocessor operates

MHz, 3.3 Volts.

o Cache memory

cache memory is stored in the i486SX microprocessor.

o Disk storage

The

internal 80, 120,

200

Megabyte (MB)

Hard

DiskDrive (HOD) has an

average access time

19 milliseconds. A 3.5-inch Floppy DiskDrive (FDD)

supports

2HD

floppy disks (1.44 Mbytes) and

2DD

floppy disks (720 Kbytes).

o Memory

The

T1900ff1900C

comes standard with 4

CMOS Random Access

Memory (RAM) 3.3 Volts. This includes 640

conventional memory and

3,456

extended memory which can

utilized as expanded memory

compatible with the LotuslIntellMicrosoft Expanded Memory Specifications

(LIM-EMS).

o Monochrome

LCD

(TI900)

The high-resolution, Liquid Crystal Display (LCD) displays 64Ox480 pixels with

a 64-level gray scale.

The T1900 internal display controller supports Video Graphics Array (VGA)

functions

the internal display device.

STN

color

LCD

(TI900C)

The high-resolution, Ultra Supertwist Nematic (Ultra STN) colorLiquid Crystal

Display (LCD) displays 64Ox480 pixels with 226,981 colors for

both

graphics

and characters.

The T1900C internal display controller supports Video Graphics Array (VGA)

functions

the internal display devices.

1-1

1-2

o Keyboard

An easy-to-use

82184-key

enhanced keyboard with full-size

keys

and

standard

spacing

compatible with

standard software.

o Batteries

The computer uses three different batteries: a

main

battery, a backup battery,

and

Real

Time

Clock (RTC) battery.

o Personal Computer Memory Card International Association (pCMCIA) card

slot

A PCMCIA slot enables you to install

MiNC

Toshiba card modem or other

industry-standard PCMCIA Release 2.0 card.

o Parallel port

The Centronics-compatible parallel interface port serves two purposes: the port

can

be used to connect a Centronics-compatible printer oran external 5

114"

floppy

disk

drive.

o RS-232-C port

A 9-pin serial interface port.

o Mouseport

The 6-pin mouse port on the back can accommodate

PS/2 mouse.

o Keyboard port

The 6-pin keyboard port on the back

can

accommodate an

PS/2 keyboard.

o Microsoft

Ball

Point mouse with Quick Port (BPQP) connection

The BPQP port

located on the right

side

the TI9001TI900C.

o RGBport

The IS-pin

RGB

port on the back can accommodate

external video

display.

o Memory card slot

The memory card slot enables you to install a Toshiba optional memory card.

The T1900ff1900C Personal Computer is shown

Figure 1-1, and its system configuration

is shown in Figure 1-2.

Figure 1-1

T19001T190OC

Personal Computer

r---------------------------------------,

PJ11

PJ3

PJ6

PJ7

PJ4

PJ9

PJ2

FATSUe

System

Board

PJ1

PJ5

PJ10

PJ502

________

Power

Supply

PJ206

PJ205

FATSLe

System

Board

PJ204

PJ203

PJ202

PJ201

Figure

J-2

TJ900ITJ90OC

System

Unit

Configuration

1-3

1.2 System Unit Block Diagram

Figure 1-3 is a block diagram

the T1900fI'1900C system unit.

::J

II)

I<.

""-

1-4

BIOS

ROM

12V

1281(x

8bII

CPU3V

CPU

1488SXA

(CACHE

8KB)

)

B3V

System

ConboBer·

vee

VCC

+5V

(

+5V

)

B5V

: Badwp

(

+5V

)

ATC

3V:

RTC

Backup

(+3V)

MeV

Pawer

supply

mlcrapracas80r

(

+3.3V

)

CPU3V

+3.3V

(+3.3V)

83V: Baclwp3.3V (+3.3V)

<;;>

B3V

·'4

System

Mernary

L._._._._

....•.

512K

8bI1

K-

MBS1andard

OMB

Maxlnum

Serial

Pon

9P1

vee

TII01-SI

DMAx2.

PIC

x2.

PIT

SIOx2

Prlnt.rlEld.

FDD

FDCx1,YFOx1

InLFDD

3.5

HOD

2.5

:>I

ATC3V

RTC

IB5V

_IBSV

I Monoctuom.

VGA

Controller

---...::t

VRAM

LCD

STN

ColDr

LCD

~MCIA

Conl.-GA

PCMCIACard

vee

lint.

Keyboard

Ball

PoInt

Mouse

KBC

_.9Uk!.~!!..._

~PS/2

Keyboardl

PS/2

Mouse

Pan

MCV

Figure 1-3

T19001T190OC

System BoardBlockDiagram

The T19001T1900C system board is composed

the following major components:

o An i486SX-20

CPU

o Super Integration (SI) T9901, which stores

the

following components:

•

Two

Direct Memory Access Controllers (DMAC): 82C37

•

Two

Programmable Interrupt Controllers (PIC): 82C59

• One Programmable Interval Timer (pIT): 82C54

• One Floppy Disk Controller (FOC): TC8565

• One Serial Input/Output Controller (SID): TC8570

• One Variable Frequency Oscillator (VFO): TC8568

• One I/O Controller

• One Printer

Port

Controller

• One Speaker Controller

o A Real Time Clock (RTC)

A T9934 chip with 128 bytes

memory is used. Fourteen bytes are used for the

calendar and clock, and the remaining 114 bytes are used for system configura-

tion data.

OSC

(X3) generates 32.768

KHz

for RTC.

o A Keyboard Controller (KBC)

AnM37452M4 chip is used.

The KBC, which includes the keyboard scan controller and keyboard interface

controller, controls the internal keyboard, external keyboard port, PS/2 mouse

port, and Ball Point Quick Port.

o Memory

Standard RAM:

Cache memory:

BIOS ROM:

Video RAM:

4MB

8 KB (inside CPU)

128 KB (96 KB are used)

This

ROM

contains Initial Reliability Test (IRT), Basic

Input/Output System (BIOS), and video BIOS.

256KB

Optional memory cards expand memory

a maximum

20 MB.

VGA

display controller

The controller controls the internal and external VGA-compatible display.

1-5

1-6

o Clock Generator receives 14.31818

MHz

(Xl)

and

generates the

following

frequencies:

•

MHz

for the CPU

• 14.7456

MHz

for the COM

•

MHz

for the

FOC

and

VFO

•

MHz

used for

• 14.31818

MHz

used for

T9901

(SI)

o Gate Array

System Controller Gate Array

This gate array

has

the following

functions:

• Memory Controller

-DRAM Controller

-CPU Controller

-Compatible Bus Interface Controller

• Bus Controller

-Compatible Bus Interface Controller

-Compatible Access Controller

DMAC

Controller

110

Controller

• Address Latch Controller

-32-Bit to 16-Bit Controller

-Address Latch

-DMA Address Generator

-Refresh Address Generator

•

110

-Compatible

110

Port

-Saving the data

the Register (in resume) Controller

-Toshiba Special Register

• 20 MHz/10

MHz

Controller

• Data Bus Change Controller

• DataLatch

PCMCIA Gate Array

This gate array

has

the following functions:

• Memory Card Controller

-PCMCIA

Card Controller

-Toshiba Modem Card Controller

1.3 3.5-inch

Floppy

Disk Drive

The T1900ff1900C 3.S-inch Floppy Disk Drive (FDD) is a thin, high-perfonnance reliable

drive that supports 720 KB (formatted) 2DD and 1.44 MB (formatted) 2HD 3.S-inch floppy

disks.

The T1900ff1900C FDD is shown in Figure 1-4, and its specifications are described in Table

1-1.

Figure 1-4 3.5-inch

FDD

Table

1-1 3.5-inch

FDD

Specifications

Item

2MBMode

1 MBMode

Storage capacity

(KB)

Unformatted 2,000 1,000

Formatted

1,311

737

Number of

heads

2 2

Number

cylinders

80 80

Access

time

(rna)

Trackto track 3 3

Average

181

Head

settling time

15 15

Recording

track density

(tpi)

135

Data

transfer

rate

(Kbps)

500

250

Rotation

speed

(rpm)

300 300

Recording

method

Modified

Frequency

Modulation

(MFM)

1-7

1.4 2.5-inch Hard Disk Drive

The Hard DiskDrive (HOD) is a random access, non-volatile storage device.

has a non-

removable 2.5-inch magnetic disk and mini-winchester type magnetic heads.

T1900ff1900C supports 80, 120, and 200 MB hard disk drives.

The T1900ff1900C

HDD

is shown in Figure 1-5, and its specifications are described in Table

1-2.

Figure 1-5 2.5-inch HDD

Table 1-2 2.5-inch HDD Specifications

SOMB

120MB

200MB

Item (CP2084) (MK1422FCV) (CP2124) (MK2124FC) (MK2224FC)

Stora~

capac:!}, (MB)

ormatte 85.2 86.0 121.6 130.1 213.0

Number

disks 2 1 2 2 2

Data heads 4 2 4 4 4

Data surfaces 4 2 4 4 4

Tracks

per

surface 1,096 1,501 1,123 1,155 1,560

Sectors per track

38(+1)

56(+1)

53 (+1)

55(+1)

Bytes

per

sector 512 512 512 512 512

Access time (ms)

Track

track

5 3

Average

Maximum

Rotation speed (rpm) 3,486 3,600 3,743 3,200 4,000

Data transfer rate (bps)

ToIfrom media

12M

17.6M

IBM

15.3M

18.9

31.6 M

Interleave 1

Recording method

2-7RLU

1-7

RLL

2-7

RLU

1-7

RLL 1-7 RLL

1-7

RLL

1-7

RLL

1-8

1.5

Keyboard

The 82-(USA)

84-(European) keyboard is mounted

the TI900/T1900C's system unit,

and is connected

the keyboard controller

the system board through a 19-pin flat cable.

The keyboard is shown in Figure 1-6.

See Appendix F for optional keyboard configurations.

Figure 1-6 Keyboard

1-9

1.6 Sidelit Liquid Crystal Display (T1900)

The sidellt Liquid Crystal Display (LCD)

composed

LCD

module, aFluorescent

Lamp

(FL), and

inverter board.

1.6.1

LCD Module (T1900)

The T

1900

sidellt

LCD

supports

64Ox480

pixels with a High Resolution Graphics Subsystem

(HRGS)

and

levels

gray. The HRGS includes the functions

the Video Graphics

Array

(VGA).

The

LCD

receives vertical

and

horizontal synchronizing

signals,

8-bit data signals (4-bit upper

block data

signal

and

4-bit lower block data signal),

and

shift

clock for data transmission.

All

signals are CMOS-level compatible.

The sidellt

LCD

shown

Figure

1-7,

and its specifications are described

Table

1-3.

Figure 1-7 Sidelit LCD

Table 1-3 Sidelit LCDSpecifications

Item Specifications

Number

Dots

(clots)

640 x 480

Dot

pitch

(mm)

0.30

(W)

x 0.30 (H)

Display

area

(mm)

198

(W)

x 150 (H)

Contrast 17:1 (typically)

current

(rnA)

5.0

frequency (KHz) 42

1-10

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