Toshiba Tecra 700CS Manual de usuario

700 Series

1-1

1.1 Features

The Toshiba 700 Series uses extensive Large Scale Integration (LSI) and Complementary

Metal-Oxide Semiconductor (CMOS) technology to provide minimum size and weight, low

power usage and high reliability. The computer is optimized for Windows®95 and supports

plug and play technology. The computer incorporates the following features and benefits:

❑Microprocessor

This computer uses an Intel Pentium®processor 120MHz with Voltage Reduction

Technology (VRT) that operates at 2.9 volts.

❑Disk storage

This computer has a 1.2GB HDD pack.

❑MultiBox

This feature provides for connection of either a Floppy Disk Drive (FDD) or an

optional CD-ROM drive.

The FDD supports 3.5-inch 2HD (1.44 MB) disks and 2DD (720 KB) disks. The

drive can be connected to an external FDD port with an attachment when the CD-

ROM drive is installed in the MultiBox.

A full-size, quadruple-speed CD-ROM drive contains an ATAPI (AT attachment

packet interface) interface controller, and supports the following formats: audio CD,

photo CD, CD plus, and ISO 9660.

❑Memory

The 700CS comes standard with 8 MB of DRAM, and the 700CT comes standard

with 16 MB of DRAM.

❑Display

The 700CS has an 11.3-inch Dual-scan Supertwist Nematic (DSTN) color LCD which

displays 800 x 600 pixels. The 700CT has an 11.3-inch full color, Thin Film Transis-

tor (TFT) color LCD which displays 800 x 600 pixels. The built-in display controller

supports full color capability and up to 1024 x 768 resolution on an external CRT.

❑Keyboard

An easy-to-use 82/84-key keyboard provides a numeric keypad overlay for fast nu-

meric data entry or for cursor and page control. This keyboard supports software that

uses a 101- or 102-key enhanced keyboard.

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700 Series

❑Batteries

Three different batteries are used in the 700 Series computers: a Lithium-Ion main

battery, a backup battery (for memory backup), and an RTC battery (for the Real

Time Clock).

❑Expansion memory slot

An optional 8, 16, or 32 MB memory module can be installed in the memory slot.

❑Parallel port

This port can be used to connect a Centronics-compatible printer or other parallel

device. The port supports an Extended Capabilities Port (ECP) and Enhanced Parallel

Port (EPP) conforming to IEEE·1284.

❑Serial port (9-pin)

The serial controller is 16550UART compatible. This standard, 9-pin, serial port can

be used to connect devices such as a serial printer, serial mouse, or external modem.

❑RGB port

The female, 15-pin, D-shell connector can be connected to an external CRT (SVGA

monitor), which is recognized automatically. It supports Video Electronics Standards

Association (VESA) Display Data Channel (DDC) 2B compatible functions.

❑Ext. Keyboard port

A PS/2-compatible keyboard can be connected to this port.

❑Mouse port

A PS/2-compatible mouse can be connected to this port.

❑PC card slot

The PC card slot supports up to two Personal Computer Memory Card International

Association (PCMCIA) standard version release 2.0 cards. The upper and lower slots

can each accommodate one Type II (5.0 mm) card, or the lower slot can accommo-

date one Type III (10.5 mm) card when the upper slot is empty.

❑Desk Station V port

This port enables connection of a Desk Station V, which expands the following fea-

tures: two PCI/ISA bus and one half size PCI bus slots, two PCMCIA slots (Type III),

a 5.25-inch drive bay, an additional MultiBox, and an on-board SCSI-2 (small com-

puter system interface) host adaptor.

700 Series

1-3

❑AccuPoint

A pointer control stick, located in the center of the keyboard, provides convenient

control of the cursor without requiring desk space for a mouse.

❑Infrared port

The 700 Series incorporates an IrDA1.0 (115.2Kbps supported) standard infrared

transmitter and receiver.

❑Sound System

A Sound BlasterTM ProTM compatible sound system provides the capability to record

sound and play it back with a built-in microphone and stereo speakers. The sound

system is equipped with a stereo headphone jack and a stereo microphone jack.

The 700 Series Personal Computer is shown in Figure 1-1, and its system configuration is

shown in Figure 1-2.

Figure 1-1 700 Series personal computer

1-4

700 Series

Figure 1-2 700 Series system unit configuration

700 Series

1-5

1.2 System Unit Block Diagram

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

Figure 1-3 System board block diagram

1-6

700 Series

The system board is composed of the following major components:

❑One Intel Pentium 120MHz 64-bit microprocessor with VRT.

It operates at 120 MHz and 2.9 volts.

❑Standard RAM

8 MB, four 1Mx16-bit chips (700CS)

16 MB, eight 1Mx16-bit chips (700CT)

3.3 volt operation

No parity bit

Access time 10 ns

Data transfer is 64-bit width

❑BIOS ROM (Flash E2PROM)

256 KB (one 256Kx8-bit chip) memory

-128 KB are used for the system BIOS

-64 KB are used for the VGA BIOS

-8 KB are used for the plug and play data area

-16 KB are used for boot

-40 KB are reserved

Access time 120 ns

Data transfer is 8-bit width

❑Video RAM

1 MB (Two 256Kx16-bit DRAM)

5 volt operation

Access time 60 ns

❑Optional memory

One expansion memory slot is available for 8, 16, and 32 MB memory modules, which

consist of some 1 MBx16-bit chips.

Total maximum memory size is 40 MB for the 700CS and 48 MB for the 700CT (if a

32 MB memory module is installed).

3.3 volt operation

No parity bit

Access time 10 ns

Data transfer is 64-bit width

❑Data buffer Gate Array

This gate array has the following functions:

-Power down control

-Memory data bus control

❑PCI bridge Gate Array

This gate array has the following functions:

-CPU control

-DRAM control

-Internal PCI bridge

700 Series

1-7

❑ISA bridge Gate Array

This gate array has the following components:

- Two DMACs 82C37 equivalent

- Two PICs 82C59 equivalent

- One PIT 82C54 equivalent

- SMI port control

- RTC control

- Flash memory control

- Internal ISA bus bridge

- High speed ISA bus control

- Power management control

- Suspend/Resume control

❑PCMCIA Controller Gate Array

This gate array has the following functions:

-PCMCIA memory card control

-PCMCIA I/O card control

❑Docking interface Gate Array

This gate array has the following functions:

-Docking interface

❑Miscellaneous Gate Array

This gate array has the following functions:

-Communication controller

•Communication with KBC

•I2C bus control

Communication with power supply microprocessor

Communication with Desk Station microprocessor

Communication with EEPROM

•Communication register set

-Others

•PWM control

Beep volume

•Joystick control

•Super I/OTM control

•FDD control

•Speaker control

•Universal I/O control

❑Video Controller

Chips & Technologies F65548 is used.

The video controller controls the internal TFT/DSTN color LCD and external CRT

(SVGA compatible CRT).

1-8

700 Series

❑Keyboard Controller (KBC)

One M38802M4 chip is used.

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

controls the internal keyboard, external keyboard, and PS/2 mouse.

❑Real Time Clock (RTC)

A T9934 chip with 128 bytes of memory is used. Fourteen (14) bytes are used for the

calendar and clock, and the remaining 114 are used for the system configuration data.

❑Super I/OTM

National Semiconductor PC87336VLJ has the following functions:

-Two UARTs 16550A equivalent (One SIO is used for SIR.)

-One FDC µPD765A equivalent

-One parallel port control supported ECP/EPP

❑Audio Drive

One ESS688 Audio Drive®chip is used. This chip contains a D/A converter and an

A/D converter that offer 16-bit stereo sound.

One YMF262 chip (OPL3) is used. This chip is an FM synthesizer chip.

700 Series

1-9

1.3 3.5-inch Floppy Disk Drive

The 3.5-inch FDD is a thin, high-performance, reliable drive that supports 720-KB (format-

ted) 2DD and 1.44-MB (formatted) 2HD disks.

The FDD is shown in Figure 1-4, and its specifications are listed in Table 1-1.

Figure 1-4 3.5-inch FDD

Table 1-1 3.5-inch FDD specifications

Item 2-MB mode 1-MB mode

Storage capacity (KB)

Unformatted 2,000 1,000

Formatted 1,440 720

Number of heads 2 2

Number of cylinders 80 80

Access time (ms)

Track to track 3 3

Average 181 181

Head settling time 15 15

Recording track density (tpi) 135 135

Data transfer rate (Kbps) 500 250

Rotation speed (rpm) 300 300

Recording method Modified Frequency Modulation (MFM)

1-10

700 Series

1.4 2.5-inch Hard Disk Drive

The HDD is a random access, nonvolatile storage device. It has a non-removable 2.5-inch

magnetic disk and mini-winchester type magnetic heads.

The 700 Series supports a 1.2 GB HDD.

The HDD is shown in Figure 1-5, and its specifications are listed in Table 1-2.

Figure 1-5 2.5-inch HDD

Table 1-2 2.5-inch HDD specifications

Item (MK2720FC) (DPRA-21215)

Storage capacity (GB)

Formatted 1,216 1,215

Cylinder 2358 2358

Heads 16 16

Sectors 63 63

Bytes per sector 512 512

Rotation speed (rpm) 4200 4900

Recording method 8-9 RLL 1-7 RLL

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