Conventional Memories

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Index

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T1100 Plus

(No longer manufactured) (1101)

General Information

Model number: PA7042 (FCC ID# CJ69XAE234)
Dimensions: 12.2" W x 2.6"H x 12"D
Weight: 10 lbs.
Voltage: Computer DC input - 9VDC, 1.1A (+ = core; - = shell)
  AC adapter - 120VAC (108 - 132V) 60Hz 15W
Battery: Internal rechargeable NiCD battery pack
CPU: 80C86-2 (7.16/4.77 MHz)
RAM memory: Early models shipped with 256KB standard (conventional);
  Later models shipped with 640KB standard (conventional)
  Memory expandable up to 1.6MB when optional 1MB LIM-EMS (3.2) memory card added
Video RAM: 32KB
Number of keys: 81
Keyboard type: PC
Drives: Two 720KB 3.5" floppy disk drives
Operating system included: Toshiba MS-DOS 2.11 or 3.20

Software Compatibility

Compatible with software written for the IBM PC/XT using a color graphics adapter (CGA) display

Interfaces

RGB (CGA) color video port

Composite b&w monochrome video port

RS-232-C serial port

Parallel printer/external floppy drive port

Toshiba proprietary expansion slot - "A" form factor

Reflective Supertwist LCD Display

Display area: 9.24" W x 4.2" H; 9.75" diagonal
Resolution: 640W x 200H
Viewing angle: -15 to 40 degrees
Contrast: 4 : 1

Battery Life (Time until low battery LED)

Tests w/ 10% FDD access, Temperature 25 degrees C

SYSTEM HDD FDD MODEM Running Time
On NA On NI 7.5 Hours

"NI" means not installed

Soft Switches

1) Change CPU speed

Ctrl + Alt + PgUp 7.16 MHz CPU speed
Ctrl + Alt + PgDn 4.77 MHz CPU speed

2) Character font

Ctrl + Alt + Right arrow Toggles display font

3) Display select

Ctrl + Alt + End External display
Ctrl + Alt + Home LCD display

4) Keypad overlay

Ctrl + Alt + Backspace Toggles keypad overlay

Hardware Switches and Controls

1) Power on/off

Located on back of computer

2) A/B/PRT Switch

Located on left side of computer

With switch set to "A", external FDD is accessed as drive A; top internal 3.5" FDD as drive B, bottom internal 3.5" drive is disabled.

With switch set to "B", external FDD is accessed as drive B; top internal 3.5" FDD as drive A, bottom internal 3.5" drive is disabled.

With switch set to "PRT", internal 3.5" FDDs are both operative - top drive as A, bottom drive as B, and PRT port is operative as a parallel printer port.

Computer must be re-booted for switch change to take effect.

3) LCD contrast dial

Located on left side of computer

4) Internal 6 bit dip switch

Located internally on left side of computer, just above keys.

SW1 OFF not used (always Off)
Settings for System Memory
SW2 SW3  
OFF OFF 640K System Memory
ON OFF 512K System Memory
OFF ON 384K System Memory
ON ON 256K System Memory
Setting for one or two internal floppy drives installed
SW4 OFF 2 FDD
  ON 1 FDD
Settings for Serial port and/or modem Com port
SW5 ON Serial Port - Com 1. Modem - Com 2 (if installed)
  OFF Serial Port - Com 2, Modem - Com 1 (if installed)
Settings for using internal display adapter or external video adapter
SW6 ON Internal Display Controller
  OFF External Controller

Enhancements

1) 1/87 Supertwist LCD screen started shipping on T1100 Plus

2) 5/87 Supertwist LCD screen upgrade available

Environmental Specifications

1) Operating condition

Ambient temperature: 41 to 95 degrees F. 5 to 35 degrees C.
Relative Humidity: 20% to 80% non-condensing

2) Non-Operating condition

Ambient temperature: -4 to 131 degrees F. -20 to 55 degrees C.
Relative Humidity: 5% to 95% non-condensing

3) Acclimation

Needs no more than 60 min. warm up

Options & Extra Accessories

PC-PA7139U 1MB LIM-EMS 3.2 memory card (Toshiba expansion slot) (no longer manufactured)
PC2-PA7132U 384KB memory card for 256KB models only (no longer manufactured)
PC-PA7225U 5.25" 360KB external FDD with 18VDC adapter
PC-PA7310U Expansion chassis & cable (requires expansion interface card) (no longer manufactured)
PC-PA7312ER T1100 Plus expansion interface card (Toshiba expansion slot) (no longer manufactured)
PC-PA7367E Floppy Link to 5.25 desktop diskette drive (no longer manufactured)
PC-PA7438E 300/1200 bps Hayes compatible Toshiba exp. slot modem (no longer manufactured)
PC-T24A 2400 bps Hayes compatible Toshiba exp. slot modem w/serial port (no longer manufactured)
PC-PA8701U 9VDC Universal AC adapter (replaces PC-PA7482U)
PC-PA7482U 9VDC AC adapter (no longer manufactured)
PC-PA7483U 9VDC automobile power adapter (no longer manufactured)
PC-PA801L Statpower Prowatt 125 auto adapter
PC-PA7590E Fabric Carrying case (no longer manufactured)
PR-PA2750U ExpressWriter 201 portable printer (no longer manufactured)
PC-SW008 Toshiba MS-DOS 3.30 (no longer manufactured)
PC-SW004 Toshiba BASIC 3.30 (no longer manufactured)

System Memory Map

Start Address Space  
Decimal Hex (Kilobytes) Used For:
0 00000    
64K 10000    
128K 20000 256 System working
192K 30000 memory
256K 40000 Optional expansion
320K 50000 memory with
384K 60000 384 memory card, or
448K 70000 space for I/Os on I/O
512K 80000 expansion slot
576K 90000    
640K A0000 Space for I/Os on I/O
704K B0000 96 expansion slot
736K B8000 16 Video RAM
752K BC000 16 (Reserved)
768K C0000    
832K D0000 192 Space for I/Os on I/O
896K E0000 expansion slot
960K F0000 32 (Reserved)
992K F8000 32 System (BIOS) ROM

Interrupts

Level Assigned To:
NMI RAM Parity Error
0 Timer
1 Keyboard
2 (Reserved)
3 Secondary Communications (option)
4 Primary Communications
5 External Hard Disk (option)
6 FDD
7 Parallel Printer

I/O Port Assignment

Port Address  
From / To Device / Function
'000' / '01F' 82C37 : DMAC Device
'020' / '03F' 82C59 : PIC Device
'040' / '05F' 82C53 : PIT Device
'060' / '07F' 82C55 : PPI Port
'080' / '09F' DMA Page Register
'0A0' / '0BF' NMI Mask Register
'0E0' / '0EF' Processor Clock Switch
'1F0' / '1FF' Hard Disk (option)
'2C0' / '2DF' Real Time Clock
'2F8' / '2FF' Secondary Communications (option)
'378' / '37F' Parallel Printer
'3D0' / '3DF' Display
'3F0' / '3F7' Floppy Disk Controller
'3F8' / '3FF' Primary communications (COM1)

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, 1995 TAIS.