T4500/T4500C Specifications

General Information:
       Model number:   T4500 80MB   - PC1107U-M2A
                       T4500 120MB  - PC1108U-M2A
                       T4500 200MB  - PC1109U-M2A
                       T4500C 120MB - PC1108U-X2A
                       T4500C 200MB - PC1109U-X2A

       Dimensions:       Monochrome: 11.7"W x 8.3"D x 1.8"H
                         Color: 11.7"W x 8.3"D x 2.0"H
       Weight:           Mono:  6.4 lbs. with battery pack
                         Color: 6.8 lbs. with battery pack
       Voltage:          Computer DC input  -  15VDC
                         Universal AC adapter -  100-240
                           VAC ;  50-60 Hz
       Battery:          Mono:  NiCd, 3+ hours battery life
                         Color: NiMH, 2.5 hours battery
                           life
       CPU:              Intel486SX (3.3V), running at
                           20MHz with 8K internal cache
       RAM memory:       4MB standard (640KB conventional;
                           3.456MB extended or HardRAM; 128KB shadow
                           ROM) Memory expandable up to 20MB via one
                           credit card style memory slot when optional
                           4MB, 8MB, or 16MB card is added
       Number of keys:   82
       Keyboard type:    101-key keyboard compatible
       Drives:           One 1.44MB 3.5" floppy disk drive
                         One 80MB or one 120MB hard disk drive
       Features:         AutoResume, HardRAM, Automatic display and
                         hard drive shutdown, CPU sleep mode,
                         QuickRead status icons, System control
                         hotkeys, BallPoint mouse with  QuickPort
       Operating system: Toshiba MS-DOS 5.0

Software Compatibility:
       Compatible with software written for the IBM PC/XT/AT using
       VGA, EGA, or CGA resolution graphics modes

Interfaces:
       Super VGA color video port (640 x 480 x 256 internal; up to
         1024 x 768 x 16 external)
       RS-232-C serial port
       Parallel printer/external diskette or tape drive port
       Numeric keypad/101-key keyboard adapter port
       150 pin expansion interface connector
       PS/2 mouse port
       PS/2 keyboard port
       16mm PCMCIA slot
       Credit card style memory slot

Display:
       Display type:           TFT-LCD Color Active Matrix Display
       Display area:           6.8"W x 5.1"H; 8.5" diagonal
       Resolution:             640 x 480 internal, 1024 x 768 external
       Colors:                 256 colors out of a palette of 185,193
                               on TFT-LCD in 640 x 480 mode

       Simultaneous display to external monitor in resolutions of
       up to 640 x 480.  External display only at 800 x 600 and
       1280 x 768.

                       -or-

       Display type:           Monochrome with 64 gray scales
       Display area:           7.6"W x 5.7"H; 9.5" diagonal
       Resolution:             640 x 480 internal, 1024 x 768 external
       Colors:                 256 colors out of a palette of 185,193
                               on external monitor in 640 x 480 mode

       Simultaneous display to external monitor in  resolutions of up to
       640 x 480.  External display only at 800 x 600 and 1280 x 768.



Hard Disk drives:

       80MB Toshiba  (T4500)
       Drive:  MK-1422FCV
       Number of heads:  4
       Cylinders:  1501
       Sectors per Track:  56 User 57 Physical
       Access Time (average):  15 ms.
       Rotation Speed:  3600 RPM
       Recording Method:  RLL 1-7
       Interleave:  1:1
       Data transfer rate (to/from media):  17.6 MBit/Sec
                          (to/from buffer):  6.5 MB/Sec
       Formatted Capacity:  86 MB
       Buffer Size:  32 KB


       120MB Toshiba (T4500 or T4500C)
       Drive:  MK2124FC
       Number of Heads:  4
       Cylinders:  1155
       Sectors per Track:  55 User 56 Physical
       Access Time (average):  17 ms.
       Rotation Speed:  3200 RPM
       Recording Method:  RLL 1-7
       Interleave:  1:1
       Data transfer rate (to/from media):  15.3 MBit/Sec
                          (to/from buffer):  6.5 MB/Sec
       Formatted Capacity:  130.1 MB
       Buffer Size:  32 KB


       200MB Toshiba (T4500 or T4500C)
       Drive:  MK2224FC
       Number of Heads:  4
       Cylinders:  1560
       Tracks per drive:  6240
       Sectors per track:  --
       Bytes per sector:  512
       Access Time (average):  12 ms.
       Rotation speed:  4000 rpm
       Recording method:  RLL 1-7
       Data transfer rate:  18.9 to 31.6
       Formatted capacity: 213.0 MB


Options and Extra Accessories:
   PC-PA2012U      4MB memory card
   PC-PA2013U      8MB memory card
   PC-PA2014U      16MB memory card
   PC13-PA874L     Executive leather portfolio
   PC-PA1050L      Leather attache'
   PC-PA877L       Fabric carrying case
   PC-PA180B       PC pack carrying case (blue)
   PC-PA180R       PC pack carrying case (red)
   PC-T24P/F       PCMCIA 2400/9600 bps data/fax Type II modem
   PC-T144P/F      PCMCIA 14400/9600 bps data/fax Type II modem
   PC-T144P4       PCMCIA 14400/9600 bps data/fax Type IV modem
   PC-PA2412U      NiCd battery pack (one supplied standard
                     with T4500)
   PC-PA2413U      NiMH battery pack (one supplied standard
                     with T4500C)
   PC-PA2455L      Auto Adapter
   PC-PA801L       Statpower universal auto adapter
   PC-PA2411U      Universal auto adapter
   PC-PA2112       150-pin SCSI adapter
   PC-PA2700UX     Desk Station IV
   PC-PA3350L      Kensington security lock
   PR-PA2750U      ExpressWriter 201 portable printer




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           Backup RAM
'000CFFFF'

'000D0000'                 64           Reserved
'000DFFFF'

'000E0000                  32           H-RAM window
'000E7FFF'

'000E8000'                 32           Reserved
'000EFFFF'

'000F0000'                 64           System BIOS ROM
'000FFFFF'                              (Shadow RAM)

'00100000'              3,072           System working
'003FFFFF'                              memory

'00400000'             16,384           Optional working
'013FFFFF'                              memory

'01400000'                256           The rest of system
'0143FFFF'                              working memory

'01440000'                              Memory expansion in
'07FEFFFF'                              expansion port

'07FF0000'                 64           System BIOS ROM
'07FFFFFF'                              (Duplicated)




Interrupts

Interrupt    Level    Assigned To:
---------    -----    ------------

--             NMI    RAM Parity Error;  I/O Channel Error
                0    Timer
                1    Keyboard
                2    PIC 2 for levels 8 to 15
1                3    Secondary Communications (COM 2)
                4    Primary Communications (COM 1)
                5    PRT 2 (LPT 2)
                6    FDC
                7    PRT 1 (LPT 1) PRT 3 (LPT 3)
                8    RTC
                9    Software Redirect to INT '0A'
2                10   Reserved
                11   Reserved
                12   PS/2 Mouse
                13   Math coprocessor
                14   HDC
                15   Reserved



DMA channels

DMAC   Channel   Assigned To:
----   -------   ------------

            0   Not used
#1           1   Reserved
            2   FDD
            3   Reserved
            4   Cascade for DMAC #1
#2           5   Reserved
            6   Reserved
            7   Not used




I/O Port Assignment

Port Address

From / To            Device / Function
---------            -----------------

'000' / '01F'        82C37 : DMA Controller 1
'020' / '03F'        82C59 : PIC 1
'040' / '05F'        82C54 : Timer
'060' / '06F'        KBC
'070'                NMI Mask Register
'070' / '07F'        RTC
'080' / '09F'        DMA Page Register
'0A0' / '0BF'        82C59 : PIC 2
'0C0' / '0DF'        82C37 : DMA Controller 2
'0E0' / '0EF'        Special Register
'0F0' / '0F7'        Math Coprocessor
'100' / '1EF'        VGA
'1F0' / '1FF'        HDC
'200' / '207'        Game I/O
'208' / '20F'        (Not Used)
'210' / '217'        Expansion Unit
'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
'280' / '2A7'        (Not Used)
'2A8' / '2AF'        Reserved for EMS
'2B0' / '2B7'        (Not Used)
'2B8' / '2BF'        Reserved for EMS
'2C0' / '2DF'        (Not Used)
'2E0' / '2E7'        (Not Used)
'2E8' / '2EF'        Reserved for EMS
'2F0' / '2F7'        (Not Used)
'2F8' / '2FF'        Serial Port 2 (COM 2)
'300' / '31F'        Prototype card
'320' / '32F'        XT type HDC
'330' / '337'        (Not Used)
'338' / '33F'        Serial Port 3 (COM 3)
'340' / '377'        (Not Used)
'378' / '37F'        Parallel PRT 1
'380' / '38F'        SDLC, Bisynchronous 2
'390' / '39F'        (Not Used)
'3A0' / '3AF'        Bisynchronous 1
'3B0' / '3BF'        MDA, Parallel PRT 3
'3C0' / '3DF'        CGA, EGA, VGA
'3E0' / '3E7'        (Not Used)
'3E8' / '3FF'        Serial Port 3 (COM 3)
'3F0' / '3F7'        FDC
'3F8' / '3FF'        Serial Port 1 (COM1)
'400' / '47F'        (Not Used)
'480' / '49F'        DMA Hi-Page Register



Design and specifications subject to change without notice.
Copyright 1992.

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