Toshiba T-Series T4800CT User manual

Toshiba America Information Systems Inc. ("TAIS") shall not be liable for damages of any kind for use of this information, which is
subject to change without notice. Copyright 1994 TAIS. 4800.DOC Rev. 3 12/29/94 MQC/nmm
Page 1 of 5
Computer Specifications
T4800CT
General Information
Model number: T4800CT TFT Color display 500MB PA1161U-T2A (FCC ID# CJ6UK454)
Dimensions: T4800CT - 11.7"W x 8.3"D x 2.2"H
Weight: 6.9lbs. with battery pack
Voltage: Computer DC input: 18VDC, 1.7A
Universal AC adapter: 100-240 VAC 50-60 Hz
Batteries: Removable rechargeable NiMH battery pack
2 + hrs. battery life per charge; recharges in 1.5 hrs. off/3 hrs. on
Internal NiMH backup battery for memory backup, vanadium lithium RTC battery for real time clock
CPU: SL enhanced IntelDX4TM DX4 75MHz (3.3 volt with 16KB internal cache; integrated math
coprocessor)
RAM memory: 8MB standard, 3.3 volt operation (640KB conventional memory plus 7.25MB which can be
configured as RAM disk, expanded (LIM/EMS 4.0), and/or extended memory, plus 128KB shadow
ROM
Memory expandable up to 24MB using 4, 8, or 16MB 3.3 volt user installable credit card style
memory
Video: 1MB video RAM
Local-bus video and graphics accelerator with BitBLT WD90C24A or WD90C24A2
Number of keys: 82
Keyboard type: 101-key keyboard compatible. Full function 82 key sculptured keyboard with 12 dedicated function
keys and 8 dedicated cursor control keys. Arrow keys arranged in an inverted "T" pattern.
Drives: One 1.44MB 3.5" floppy disk drive; one 500MB hard disk drive
Standard features: MaxTimeTM power management capabilities including:
AutoResume safety data protection
Resume electronic bookmark
Selectable processing speeds
CPU sleep mode
Automatic display and hard drive power down
Low battery warning and audible alarm
System auto off
LCD Brightness
Battery save mode
Speaker volume
Software sounds
Panel power
Card modem power
Auto on timer
Panel close alarm
Digital/Analog battery gauge
HWSetupTM System Configuration including:
Memory information
HDD information
PCMCIA slot/Serial port/Parallel port setup
Display setup
CPU cache enable
Hotkey enable
Boot Priority configuration
Sound system address configuration
Sound system power on/off
Ext. keyboard Fn key configuration
APM integrated in system BIOS
QuickRead status icons
System control hotkeys including instant hotkey screen blank
BIOS in Flash ROM
Multi-level password protection
Shadow BIOS ROM
System reset button
3 year U.S. and International warranty (One year warranty on battery)
Product Support
Meets standards for EPA Energy Star Computer Program

Toshiba America Information Systems Inc. ("TAIS") shall not be liable for damages of any kind for use of this information, which is
subject to change without notice. Copyright 1994 TAIS. 4800.DOC Rev. 3 12/29/94 MQC/nmm
Page 1 of 5
T4800CT(continued)
Preinstalled software: MS-DOS®6.21 operating system
Windows For Workgroups 3.11
Windows Sound System 2.1
Run Time Video for Windows 1.1
IndeoTM Video 3.1
UltraFont™ or Stretch
Toshiba Card Manager 3.0
MaxTime®utility for Windows 3.11
QuickPort™ drivers
Hypertext on-line documentation (disk resident) includes T4800CT reference manual
Pointing device: BallPoint®mouse version 2.0 with cordless QuickPortTM connection
Software Compatibility:
Compatible with software written for the IBM®PC/XT/AT using VGA®, EGA, or CGA resolution graphics modes.
IBM®super video graphics array (SVGA) compatible display system.
Microsoft Windows Sound System (wave audio) compatible.
Interfaces
SVGA color video port (supports 640 x 480, 256 colors internal or external; 800 x 600, 16 colors; 800 x 600, 256 colors;
1024 x 768, 256 colors external)
PCMCIA 2.01 compliant slot (16mm) supports type I, II, or III cards
PCMCIA 2.01 compliant slot (5mm) supports type I or II cards
RS-232-C serial port
Parallel printer/external diskette drive port
150 pin expansion bus connector for optional Desk Station IV docking station or optional SCSI adapter
PS/2 keyboard port
PS/2 mouse port
Credit card style memory slot
Kensington®cable lock slot
QuickPortTM connection for BallPoint®mouse
Audio-out headphone or external speaker jack
Input jack for external microphone
Audio System
16 bit sound
Wave audio compatibility
Built-in stereo speaker and microphone
Headphone or external speaker jack
Microphone jack
Color TFT-LCD Active Matrix Display
Display area: 7.6"W x 5.7"H; 9.5" diagonal
Resolution: 640 x 480
Dot pitch: .30mm(W) x .30mm(H)
Aspect ratio: 1 : 1
Contrast: 100 : 1 Max; 60:1 Min.
Colors: 256 colors out of a palette of 262,144 in 640 x 480
mode
Simultaneous display to external monitor on video modes up to 640 x 480, 256 colors
2.5" 500MB Hard Disk Drive
Toshiba HDD: MK2428FC
Interface: IDE
Average access time: 12ms
Recording method: RLL 1-7
Hardware Switches and Controls
1) Power on/off
Located on left side of computer
2) Reset
Located on left side of computer

Toshiba America Information Systems Inc. ("TAIS") shall not be liable for damages of any kind for use of this information, which is
subject to change without notice. Copyright 1994 TAIS. 4800.DOC Rev. 3 12/29/94 MQC/nmm
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T4800CT(continued)
Environmental Specifications
1) Operating condition
Ambient temperature: 41 to 95 degrees F.
5 to 35 degrees C.
Relative humidity: 20% to 80% (non-condensing)
Altitude (from sea level): -60 to 3,000 meters
2) Non-Operating condition
Ambient temperature: -4 to 149 degrees F.
-20 to 65 degrees C.
Relative humidity: 10% to 90% non-condensing
Altitude (from sea level): 30,000 ft.
3) Wet bulb temperature condition
Ambient temperature: 79 degrees F / 26 degrees C maximum
HotKeys used with Fn key
Fn + F1 Instant security ON/OFF
Fn + F2 Power save mode
Fn + F3 AutoResume Enable/Disable
Fn + F4 Speaker volume adjustment - off, high, medium, low - press key repeatedly to set
level
Fn + F5 Internal/Simultaneous/External displays - press key repeatedly to set choice
Fn + F10 Toggles keypad overlay
Fn + F11 Toggles num lock
Fn + F12 Toggles scroll Lock
Fn + Up/Down arrow Brightness adjustment
Fn + Alt Simulate IBM®enhanced keyboard Right ALT
Fn + Ctrl Simulate IBM®enhanced keyboard Right CTRL
Fn + Enter Simulate IBM®enhanced keyboard numeric keypad enter
Options and Extra Accessories
PC-PA2012U 4MB 3.3V memory card
PC-PA2013U 8MB 3.3V memory card
PC-PA2014U 16MB 3.3V memory card (no longer manufactured)
T24NW Noteworthy™ PCMCIA Type II 2400/9600bps data/fax modem (no longer manufactured)
T144NWX Noteworthy™ 14,400 bps data/fax modem, PCMCIA Type II (no longer manufactured)
PC-T144PF4 14mm 14,400 bps data/fax modem (dual RJ-11), PCMCIA compliant (no longer manufactured)
NW144CR Noteworthy™ 14,400 bps Cellular-Ready data/fax modem, PCMCIA Type II
NWTR01X Noteworthy™ PCMCIA type II Token Ring card
NWETH01X Noteworthy™ 10BaseT PCMCIA type II Ethernet card
NWETH02X Noteworthy™ 10Base2 PCMCIA type II Ethernet card
NW3270 Noteworthy™ PCMCIA type II 3270 emulation card
SW3270 IBM®PC/3270 software for NW3270 card
NWHD105M3 Noteworthy™ 105MB Hard disk drive, PCMCIA Type III
NWHD262M3 Noteworthy™ 262MB hard disk drive PCMCIA Type III
PA28064 Cryptcard PCMCIA Type II (DES) data encryption card
PA2429URA Battery pack, NiMH (2600mAh)
PC-PA2422U Battery pack recharger with AC adapter
PC-PA2478U Universal AC adapter
PC-PA801L Statpower auto adapter (requires universal AC adapter)
PC-PA2113 Toshiba 150 pin SCSI adapter (no longer manufactured)
PC-PA3350L Kensington®security cable lock
PC-PA2701U Deskstation IV
PC-PA180B PC pack carrying case (blue)
NWCCDFB Universal fabric carrying case
NWCCAFB Twin fabric carrying case
NWCCALB Twin Executive leather carrying case, black
NWCCBLB Leather expanded size carrying case
PC-PA1050L Leather attache case
PA2209US External PS/2 keyboard
PA2805U BallPoint®mouse V2.0 with Quickport connection
NW500L Noteworthy™ NewsCard™ wireless receiver, PCMCIA Type II
NW621P 17-key numeric keypad with pass through parallel interface
NW623S 17-key numeric keypad with serial interface
NWMOTO Cellular direct connect cable kit (Motorola)
NWNOKI Cellular direct connect cable kit (Nokia)

Toshiba America Information Systems Inc. ("TAIS") shall not be liable for damages of any kind for use of this information, which is
subject to change without notice. Copyright 1994 TAIS. 4800.DOC Rev. 3 12/29/94 MQC/nmm
Page 1 of 5
System Memory Map
Space
Address range (Kilobytes) Used For:
'00000000' 640 Conventional memory
'0009FFFF'
'000A0000' 128 Video RAM
'000BFFFF'
'000C0000' 32 Video BIOS ROM
'000C7FFF' (Shadow RAM)
'000C8000' 32 Reserved
'000CFFFF'
'000D0000’ 64 Reserved
'000DFFFF'
'000E0000' 32 Reserved
'000E7FFF'
'000E8000' 32 Backup RAM
'000EFFFF'
'000F0000' 64 System BIOS ROM
'000FFFFF' (Shadow RAM)
'00100000' 7,424 System working
'007FFFFF' memory
'00800000' 16,384 Optional working
'017FFFFF' memory
'01800000' 256 The rest of system
'0183FFFF' working memory
'01840000' Memory expansion in
'07FEFFFF' expansion port
'07FF0000' 64 System BIOS ROM
'07FFFFFF' (Duplicated)
Interrupts
Interrup
tLevel Assigned To:
-- NMI I/O Channel check
0 Timer (channel 0)
1 Keyboard
2 PIC #2 for level 8 to 15
13 COM2
4COM1
5 PRT2 (LPT2)
6FDC
7 Printer 1 or Windows Sound System
28 RTC
9 Software Redirect to INT 0Ah or *Windows Sound System
10 *Windows Sound System
11 *Windows Sound System
12 PS/2 mouse
13 Math-coprocessor
14 HDC
15 Reserved
*: Select one NMI level from 7, 9, 10, or 11 in the Windows Sound System SETUP program.
DMA channels
DMAC Channel Assigned To:
0 *Windows Sound System
#1 1 *Windows Sound System
2 Floppy disk
3 *Windows Sound System
#2 4 Cascade for DMAC #1
5 Reserved
6 Reserved
7 (Not used)
*: Select one NMI level from 0, 1, or 3 in the Windows Sound System SETUP program.

Toshiba America Information Systems Inc. ("TAIS") shall not be liable for damages of any kind for use of this information, which is
subject to change without notice. Copyright 1994 TAIS. 4800.DOC Rev. 3 12/29/94 MQC/nmm
Page 1 of 5
T4800CT (continued)
I/O Port Assignment
Port Address
From / To Device / Function
'000' / '01F' 82C37; DMA Controller 1
'020' / '03F' 82C59; PIC1
'040' / '05F' 82C54; Timer
'060' / '06F' KBC *6
'070' NMI Mask Register
'070' / '07F' RTC
'080' / '09F' DMA Page Register *3
'0A0' / '0BF' 82C59; PIC 2
'0C0' / '0DF' 82C37; DMA Controller 2
'0E0' / '0EF' Special Register *2
'0F0' / '0F7' Math Coprocessor
'100' / '1EF' VGA
'1F0' / '1FF' HDC
'200' / '207' Game I/O *1
'208' / '20F' (Not used)
'210' / '217' Expansion Unit *1
'218' / '21F' (Not used)
'220' / '257' (Not used)
'258' / '25F' (Not used)
'260' / '267' (Not used)
'268' / '26F' (Not used)
'270' / '277' (Not used)
'278' / '27F' Parallel PRT 2 *1
'280' / '2A7' (Not used)
'2A8' / '2AF’ Reserved for EMS *1
'2B0' / '2B7' (Not used)
'2B8' / '2BF' Reserved for EMS *1
'2C0' / '2DF' (Not used)
'2E0' / '2E7' (Not used)
'2E8' / '2EF' Reserved for EMS *1
'2F0' / '2F7' (Not used)
'2F8' / '2FF' Serial port 2 (COM 2)
'300' / '31F' Prototype Card *1
'320' / '32F' XT type HDC *1
'330' / '337' (Not used)
'338' / '33F' Serial Port 3 (COM 3) *5
'340' / '377' (Not used)
'378' / '37F' Parallel PRT 1
'380' / '38F' SDLC, Bisynchronous 2 *1
'390' / '39F' (Not used)
'3A0' / '3AF’ Bisynchronous 1 *1
'3B0' / '3BF’ MDA, Parallel PRT 3
'3C0' / '3DF' CGA, EGA, VGA
'3E0' / '3E7' (Not used)
'3E8' / '3EF' Serial Port 3 (COM 3) *5
'3F0' / '3F7' FDC *4
'3F8' / '3FF' Serial Port (COM 1)
'400' / '47F' (Not used)
'480' / '49F' DMA High-Page Register *3
Note:*1 Used for expansion cards installed in Deskstation IV expansion slots.
*2 Used only for T4800CT
*3 16 x 8 bit read-write registers are assigned to addresses '080' to '08F' and '480' to '49F', however,
part of this area is assigned for DMA page register and DMA high-page register. The area not used for either of
these registers can be used for other purposes. However, if ports '&90' to '&9F' are accessed, '&80' to '&8F' are
also accessed. '&81', '&82', '&83', '&87', '&89', '&8A', '&8B', and '&8F' are used for DMA Page Register/DMA High
Page Register. '&80', '&84', '&85', '&86', '&88', '&8C', '&8D', and '&8E' are used for other purposes or not used.
= 0; DMA Page Register
&=4: DMA High Page Register
*4 '3F6' and '3F7' are also used for HDC.
*5 Used for Deskstation IV's COM 3
*6 '060', '064' KBC, '061' is system status port.