Toshiba T-Series T6600c Bedienungsanleitung

1.1 Features

The Toshiba T6600C is one of the most powerful multimedia capable laptop computer’s

available. Utilizing advanced technology and high-speed components, the T6600C offers

excellent display legibility, and IBM PC/AT compatibility. The T6600C system unit consists

of the following features:

❑Microprocessor

The i486DX2-66 microprocessor operates at 66 MHz.

❑Math co-processor

The microprocessor (i486DX2) incorporates a math co-processor.

❑Cache memory

Eight (8) KB of cache memory is stored in the i486DX2.

Optionally, a turbo cache module (128 KB) made by Integrated Device Technology

(IDT) can be installed in the T6600C. When it is installed, the i486DX2 cache memory

is duplicated.

❑Disk storage

The internal 3.5-inch 510 Megabyte (MB) Hard Disk Drive (HDD) has an average

access time of 10 milliseconds. A 3.5-inch Floppy Disk Drive (FDD) supports 2HD

floppy disks (1.44 Mbytes) and 2DD floppy disks (720 Kbytes). The T6600C also has

a built-in 5.25-inch bay for an optional CD-ROM.

❑Memory

The T6600C comes standard with 8 MB of CMOS Random Access Memory (RAM).

This includes 640 KB of conventional memory and 7,424 KB of extended memory,

which can be utilized as a BIOS ROM data copy area, and as expanded memory that is

compatible with the Lotus/Intel/Microsoft Expanded Memory Specifications (LIM-

EMS).

❑Display

The high-resolution, Thin Film Transistor (TFT) color Liquid Crystal Display (LCD)

displays 640x480 pixels with 260 K colors for both graphics and characters.

The internal display controller supports Video Graphics Adapter (VGA) functions on

the internal display device and Super VGA (SVGA) functions on an external CRT.

The internal LCD and an external CRT can display simultaneously. The Toshiba

proprietary 640x400 mode and AT&T proprietary 640x400 mode are supported at the

BIOS level.

T6600C, T6600C/CD, T6600C/CDV 1-1

1-2

T6600C, T6600C/CD, T6600C/CDV

❑Keyboard

The easy-to-use 101/102-key enhanced detachable keyboard with full-size keys and

standard spacing is compatible with IBM standard software.

❑Power supply

The power supply is a universal, auto-sensing power supply which enables worldwide

usage of the T6600C as long as a compatible AC plug is available.

❑Expansion slots

The two Industry Standard Architecture (ISA) bus slots allow for an IBM-compatible

full-size card and half-size cards.

❑Memory card slots

Two optional memory card slots (88-pin) enable you to install the following Toshiba

optional memory cards:

4 MB memory card: PA2004U

8 MB memory card: PA2005U

16 MB memory card: PA2010U

❑Personal Computer Memory Card International Association (PCMCIA) card slot

The optional built-in PCMCIA slot measures 16 mm high.

❑Parallel port

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

be used to connect a Centronics-compatible printer or an external 5.25-inch floppy

disk drive.

❑RS-232-C port

The RS-232-C port is a 9-pin serial interface port.

❑Mouse port

The 6-pin mouse port on the back supports an IBM PS/2 mouse.

❑Keyboard port

The 6-pin keyboard port on the back supports an IBM PS/2-compatible keyboard.

T6600C, T6600C/CD, T6600C/CDV

1-3

❑RGB port

The 15-pin RGB analog port on the back supports an external CRT.

❑SCSI port

The T6600C has a Small Computer System Interface (SCSI) port.

❑Audio ports

The computer has the following standard 3.5-mm diameter miniature stereo jacks for

an audio system:

•Headphone (with speaker shut-off switch)

•Line out

•Line in

•Microphone

❑Special ports

The T6600C has a Feature connector and Z-connector for use with expansion cards.

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T6600C, T6600C/CD, T6600C/CDV

The T6600C Personal Computer is shown in Figure 1-1, and its system configuration is

illustrated in Figure 1-2.

Figure 1-1 T6600C Personal Computer

Figure 1-2 T6600C System Unit Configuration

T6600C, T6600C/CD, T6600C/CDV

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1.2 System Unit Block Diagram

Figure 1-3 shows a block diagram of the T6600C system unit.

Figure 1-3 T6600C System Board Block Diagram

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T6600C, T6600C/CD, T6600C/CDV

The block diagram shown in Figure 1-3 is composed of the following major components:

❑An i486DX2-66 CPU which incorporates a math co-processor and 8 KB cache

memory.

❑The following memory components:

Standard RAM: 8 MB, 32-bit data width (70 ns)

Cache memory: 8 KB (inside CPU), a turbo cache memory module can be

installed, duplicating the CPU’s cache memory.

System, Video 128 KB (96 KB are used), 8-bit data width

BIOS: 1 Mbit flash ROM. (150 ns)

This ROM contains Initial Reliability Test (IRT), Basic Input/

Output System (BIOS), and video BIOS.

SCSI BIOS: 32 KB (16 KB are used), 8-bit data width

EROM is used. (150 ns)

Video RAM: 1 MB, 16-bit data width

(Eight 256Kx4 bit chips)

Memory card: 4, 8, or 16 MB memory card can be installed.

32-bit data width.

❑Super Integration (SI) T9901, which stores the following components:

•Two Direct Memory Access Controllers (DMAC): .82C37 equivalent

•Two Programmable Interrupt Controllers (PIC): ..... 82C59 equivalent

•One Programmable Interval Timer (PIT):................ 82C54 equivalent

•One Floppy Disk Controller (FDC): ........................ TC8565 equivalent

•One Serial Input/Output Controller (SIO): .............. TC8570 equivalent

(The T6600C does not use SIO inside the T9901.)

•One Variable Frequency Oscillator (VFO):.............. TC8568 equivalent

•One I/O Controller

•One Printer Port Controller

•One Speaker Controller

❑Serial Input/Output Controller (SIO)

One NS16550 chip controls the internal serial port.

❑Real Time Clock (RTC)

One T9934 chip is used (which has 128 bytes of memory). Fourteen bytes of memory

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

configuration data.

T6600C, T6600C/CD, T6600C/CDV

1-7

❑Keyboard Controller (KBC)

An M37506E1FP chip and an 8749 chip are used.

The M37506E1FP is a keyboard interface controller which controls the internal

keyboard, external keyboard port, and PS/2 mouse port. The 8749 chip is a keyboard

scan controller which is mounted inside the detachable keyboard unit.

❑VGA Display Controller: WD90C31

This controller controls both internal and external VGA-compatible displays and

external SVGA-compatible displays with an Analog Digital Converter (DAC). The

controller can display data on the internal and external display simultaneously.

❑SCSI Controller

An AIC6260 chip controls the internal Small Computer System Interface (SCSI) port.

❑Sound Controller

An AD1848 chip controls the internal sound system.

❑The Clock Generator receives 14.31818 MHz (X1) and generates the following

frequencies:

•66 MHz for the CPU

•14.7456 MHz for the COM

•24 MHz for the FDC and VFO

•16 MHz is used for KBC (8 MHz)

•14.31818 MHz for VGA display controller

OSC (X3) generates 32.768 KHz for RTC

OSC (X) generates 24.576 MHz for sound system

OSC (X) generates 16.9344 MHz for sound system

❑Gate Arrays

System Controller Gate Array

This gate array has the following functions:

•CPU Control

•Turbo Cache Control

•Memory Control

-DRAM Control

-Compatible Bus Interface Control

•Bus Controller

-Compatible Bus Interface Control

-Compatible Access Control

-DMAC Control

-I/O Control

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T6600C, T6600C/CD, T6600C/CDV

•Address Latch Controller

-32-bit to 16-bit Transfer

-Address Latch

-DMA Address Generation

-Refresh Address Generation

•I/O Register

-Compatible I/O Port

-Saving the data of the Register (in resume) Control

-Toshiba Special Register

•Processing Speed Control

•Data Bus Change Controller

•Data Latch

PCMCIA Controller Gate Array

This gate array has the following functions:

•PCMCIA Card Interface control

•HDD and FDD access control by security register

•Communication control between system and KBC

•EEPROM access

•SCSI interrupt control

•External SIO control

•Sound system control

•Display type determine

•DAC digital output on/off control

•Display signal on/off control

•Back light on/off control

•Feature connector and Z-connector connect detection

•External KB select signal control

Display Timing Controller Gate Array

This gate array controls the display timing of the internal display.

T6600C, T6600C/CD, T6600C/CDV

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1.3 3.5-inch Floppy Disk Drive

The T6600C 3.5-inch Floppy Disk Drive (FDD) is a thin, high-performance reliable drive that

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

The T6600C 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 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)

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T6600C, T6600C/CD, T6600C/CDV

1.4 3.5-inch Hard Disk Drive

The Hard Disk Drive (HDD) is a random access, non-volatile storage device. It has a non-

removable 3.5-inch magnetic disk and mini-Winchester type magnetic heads.

The T6600C supports a 510 MB HDD. The disk drive is shown in Figure 1-5, and its specifi-

cations are described in Table 1-2.

Figure 1-5 3.5-inch HDD

Table 1-2 3.5-inch HDD Specifications

Item Specification

Model Name CP30544

Storage capacity (MB)

Formatted 510.0

Number of disks 3

Data heads 6

Data surfaces 6

Tracks per surface 2243

Sectors per track 59 (60) to 89 (90)

Bytes per sector 512 to 520

Access time (ms)

Track to track 2

Average 10

Maximum 18

Rotation speed (rpm) 5,400

Data transfer rate (bps)

To/from media 3.22 M

Interleave 1:1

Recording method 1-7 RLL

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