==============
 INTRODUCTION
==============

This document specifies the T1000SE portable computer. The document was
composed by Thor Harald Johansen for his wearable computer project. Feel
free to distribute it, just remember to mention my name. :)

===================
 TABLE OF CONTENTS
===================

1.0	General Information
1.1	Software Compatibility
1.2	Interfaces
1.3	Display
1.4	Soft Switches
1.5	Hardware Switches and Controls
1.6	Options and Extra Accessories

2.0	System Memory Map
2.1	Interrupts
2.2	I/O Port Assignment
2.3	100-pin Bus Connector
2.4	Dedicated Modem Slot 30 Pin Connector
2.5	Centronics Compatible Parallel Port
2.6	External Floppy Drive Port

1.0	General Information:

    Model number:               PA8003U

    Dimensions:                 12.2"W x 10"D x 1.8"H

    Weight:                     5.9 lbs.

    Voltage:                    Computer DC input -  12 VDC, .83 A
                                (+=core; -=shell) Universal AC adapter - 
                                100-240 VAC, 50-60 Hz
    Battery:                    Removable rechageable NiCD battery pack

    CPU:                        80C86 (9.54/4.77 MHz)

    RAM memory:                 1MB standard (640KB conventional;
                                384KB LIM-EMS 3.2 or Hard-RAM), Memory
                                expandable up to 3MB via one credit card
                                style memory slot when optional 1MB or 2MB
                                card is added

    Number of keys:             82
    Keyboard type:              101-key keyboard compatible

    Drives:                     3.5" 1.44 MB floppy disk drive

    Features:                   AutoResume, HardRAM, Double Scan CGA,
                                Auto display shutdown, Intelligent power
                                supply with "Gas Gauge"

    Operating system included:  Toshiba MS-DOS 3.30 in 512K ROM

==============

1.1	Software Compatibility:

    Compatible with software written for the IBM PC/XT using CGA or
    T3100/AT&T 6300 640 x 400 high resolution graphics mode.

=============

1.2	Interfaces:

    RS-232-C serial port
    Parallel printer/external diskette drive port
    Built-in modem slot - "D" form factor
    100 pin expansion interface connector
    Credit card style memory slot

=============

1.3	Display:

    Display type:   Electroluminescent Backlit Supertwist LCD
    Display area:   7.75"W x 4.88"H; 9" diagonal
    Resolution:     640 x 400
    Contrast:       4 : 1

=============

1.4	Soft Switches:

    1) Change CPU speed
        Fn + PgUp  9.54MHz CPU Speed
        Fn + PgDn  4.77MHz CPU Speed

    2) Character font
        Fn + Right Arrow Toggles display font

    3) Pop-up window
        Fn + Esc Toggles pop-up window

    4) Keypad overlay
        Fn+ F10 Toggles keypad overlay

    5) Fn key
        Fn + F11 Activates Num Lock
        Fn + F12 Activates Scroll Lock
        Fn + Ctrl Simulates IBM enhanced keyboard Right Ctrl
        Fn + Alt Simulates IBM enhanced keyboard Right Alt
        Fn + Enter Simulates IBM enhanced keyboard numeric keypad Enter

=============

1.5	Hardware Switches and Controls:

    1) Power on/off
        Located on left side of computer 

    2) Reset
        Located on left side of computer

    3) LCD brightness and contrast dials
        Located on left side of computer

============

1.6	Options and Extra Accessories :

    PC-PA8311U   1MB memory card
    PC-PA8312U   2MB memory card
    PC-T24D      2400 bps Hayes compatible dedicated built-in modem
                 (Bell or CCITT)
    PC-T24D/X    2400 bps Hayes compatible dedicated built-in modem
                 w/enhanced protocol (MNP5, V.42 bis)
    PC-PA7225U   5.25" 360KB external FDD with 18VDC adapter
    PC-PA8712U   Battery pack
    PC-PA8704U   Battery pack recharger with AC adapter
    PC-PA8713U   Universal AC adapter
    PC-PA8717U   12VDC automobile adapter
    PC-PA7367E   Floppy Link to 5.25" desktop diskette drive
    PC-PA8600U   Desk Station ll
    PC-PA872L    Fabric carrying case (no longer manufactured)
    PC13-PA873L  Fabric carrying case (replaces PC13-PA872L)
    PC13-PA874L  Executive leather portfolio
    PC-PA1000L   Leather carrying case
    PR-PA2750U   ExpressWriter 201 portable printer
    PC-SW004     Toshiba BASIC 3.30 (includes diskette and manual)
    PC-SW008     Toshiba MS-DOS 3.30 (Includes diskettes and manual)
    PC-SW007     Toshiba MS-DOS 4.01 (includes diskettes and manuals)
    PC-SW013     Toshiba MS-DOS 5.0 (includes diskettes and manuals)

==========

2.0	System Memory Map

	                        Space
	        Address range  (Kilobytes) Used For:
	------------------------------------------------------------
		'00000'         640        System working
       		'9FFFF'                    memory
	------------------------------------------------------------
		'A0000'         96         (Not Used)
		'B7FFF'
	------------------------------------------------------------
        	'B8000'         32         Video RAM (CGA)
        	'BFFFF'
	------------------------------------------------------------
        	'C0000'         64         Space for I/Os on I/O
        	'CFFFF'                    expansion slot
	------------------------------------------------------------
        	'D0000'         64         EMS window
        	'DFFFF'
	------------------------------------------------------------
        	'E0000'         64         DOS ROM
        	'EFFFF'
	------------------------------------------------------------
        	'F0000'         32         Back-Up RAM
        	'F7FFF'
	------------------------------------------------------------
        	'F8000'         32         System (BIOS) ROM
        	'FFFFF'
	------------------------------------------------------------

===================

2.1	Interrupts:

	    Level       Assigned To:
	------------------------------------------------------------
	    NMI            I/O channel error; Time out power off; 
			   System power off request; FDD ready
	    0              Timer
	    1              Keyboard
	    2              (Not used)
	    3              Secondary Communications  (COM2)
	    4              Primary Communications (COM1)
	    5              Reserved for HDD
	    6              FDD
	    7              Parallel Printer

===========

2.2	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'   Programmable I/O Ports
	    '080' / '09F'   DMA Page Register

	    '0A0' / '0BF'   NMI Mask Register
	    '0E0' / '0F7'   System Controller Ports
	    '208' / '2BF'   Expanded Memory
	    '2C0' / '2DF'   Real Time Clock
	    '2E8' / '2EF'   Expanded Memory

	    '2F8' / '2FF'   Secondary Communications (COM2)
	    '378' / '37F'   Parallel Printer
	    '3D0' / '3DF'   Display (LCD)
	    '3F0' / '3F7'   Floppy Disk
	    '3F8' / '3FF'   Primary communications (COM1)

==========

2.3	100-pin Bus Connector

      Pin     Signal              Pin     Signal

      1       Ground              51      Ground
      2       KVCC                52      PWSV
      3       KGND                53      CPCKB
      4       CPCNF               54      IRQ5
      5       MDMSL               55      DRQ3
      6       COMCLK              56      DACK3
      7       MIRQ                57      CPADE
      8       SPKTON              58      DRQ1
      9       Ground              59      IORDY
      10      SA00                60      Ground
      11      SA01                61
      12      SA02                62
      13      SA03                63
      14      SA04                64
      15      SA05                65
      16      SA06                66
      17      SA07                67
      18      Ground              68
      19      SA08                69
      20      SA09                70      Ground
      21      SA10                71
      22      SA11                72
      23      SA12                73      IRQ6
      24      SA13                74
      25      SA14                75
      26      SA15                76
      27      Ground              77      DRQ2
      28      SA16                78
      29      SA17                79
      30      SA18                80
      31      SA19                81
      32      SD00                82      Ground
      33      SD01                83      DACK0
      34      SD02                84
      35      SD03                85
      36      Ground              86
      37      SD04                87
      38      SD05                88      IOERR
      39      SD06                89
      40      SD07                90      Ground
      41      SMEW                91
      42      SMER                92      DACK2
      43      Ground              93
      44      IOWR                94
      45      IORD                95
      46      TC                  96
      47      BALE                97      MDSL2
      48      RESET               98
      49      DACK1               99      IRQ7
      50      IRQ2                100     Ground

============

2.4	Dedicated Modem Slot 30 Pin Connector

       Pin Input/Output   Signal

        1                 MVEE
        2       O         MDMSL0
        3       O         COMCLK1
        4                 Ground
        5       O         AA0B1
        6       O         A011
        7       O         A021
        8                 Ground
        9      I/O        SYD71
        10     I/O        SYD61
        11                Ground
        12                Ground
        13     I/O        SYD51
        14     I/O        SYD41
        15     I/O        SYD31
        16                Ground
        17     I/O        SYD21
        18     I/O        SYD11
        19                Ground
        20                Ground
        21     I/O        SYD01
        22      O         IOWR0
        23      O         IORD0
        24                VCC
        25      O         RESET1
        26      O         MPWOF1
        27                VCC
        28                VCC
        29      I         MIRQ0
        30      I         MDSPK0

============

2.5	Centronics Compatible Parallel Port

	PIN  Input/Output  Signal
	-------------------------

	1       O          Strobe
	2       O          Data 0
	3       O          Data 1
	4       O          Data 2
	5       O          Data 3
	6       O          Data 4
	7       O          Data 5
	8       O          Data 6
	9       O          Data 7
	10      I          Acknowledge
	11      I          Busy
	12      I          Paper End
	13      I          Select
	14      O          Auto Feed
	15      I          Error (Fault)
	16      O          Initialize Printer
	17      O          Select Input
	18-25              Signal Ground
 
============

2.6	External Floppy Drive Port

	(This port is actually the same port as the parallel port on the
         T1000SE. Port mode (FDD or Parallel) is selected in BIOS Setup.)

	PIN  Input/Output   Signal

	1       I       Drive Ready
	2       I       Index
	3       I       Track 0
	4       I       Write Protect
	5       I       Read Data
	6       I       Disk Change (All Toshiba computers except T1000, 
			T1100 Plus, T1200)
	7-9             not used
	10      O       Drive Select
	11      O       Motor On 
	12      O       Write Data
	13      O       Write Gate
	14      O       Low Density (All Toshiba computers except T1000, 
			T1100 Plus, T1200)
	15      O       Side Select
	16      O       Direction
	17      O       Step
	18-25           Signal Ground
			(T1000 MUST have pins 24 and 25 grounded)

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