
INFORMTECH INTERNATIONAL, INC.

BABY 286MB Ver. 1.20

Processor         80286
Processor Speed   5/6/8/10MHz
Chip Set          C & T
Max. Onboard DRAM 1MB
SRAM Cache        None
BIOS              Unidentified
Dimensions        330mm x 218mm
I/O Options       Auxilliary keyboard connector
NPU Options       80287

[Image]

                        USER CONFIGURABLE SETTINGS

              Function                  Jumper/Switch         Position

     Power good signal detect               J14             pins 2 & 3
      from power supply                                        closed

      Power good signal detect               J14             pins 1 & 2
      from board                                               closed

      BIOS type select 27256                 J15             pins 1 & 2
                                                               closed

      BIOS type select 27128                 J15             pins 2 & 3
                                                               closed

     Factory configured - do not       SW1/Switch 5           closed
      alter

     Monitor type select               SW1/Switch 6            open
      monochrome

      Monitor type select color         SW1/Switch 6           closed

                                CONNECTIONS

  Purpose                 Location    Purpose                    Location

  Speaker                    P1       Power LED & keylock          P4

  Turbo LED                  P2       Auxilliary keyboard          P6

  Reset switch               P3       External battery             P8

                            DRAM CONFIGURATION

      Size          Bank 0      Bank 1     SW1/Switch 3     SW2/Switch 4

        256KB      (18) 4164   (18) 4164      closed            open

        512KB        (18)        NONE          open             open
                    41256

       640KB        (18)      (18) 4164      closed           closed
                    41256

       1024KB        (18)        (18)          open            closed
                    41256       41256

                         NPU SPEED CONFIGUARATION

     NPU Speed          Clock Rate            J7                J8

     80287-12            8/12MHz             open           pins 1 & 2
                                                              closed

     80287-12           6.7/10MHz            open           pins 1 & 2
                                                              closed

     80287-10           6.7/10MHz            open           pins 1 & 2
                                                              closed

     80287-10            5.3/8MHz           closed          pins 2 & 3
                                                              closed

      80287-8            5.3/8MHz           closed          pins 2 & 3
                                                              closed

      80287-8            4.4/6MHz           closed          pins 2 & 3
                                                              closed

      80287-6            4.4/6MHz           closed          pins 2 & 3
                                                              closed

      80287-6            2.6/4MHz           closed          pins 1 & 2
                                                              closed

                        BATTERY TYPE CONFIGUARATION

           Battery                     J12                    J13

      Internal lithium (2 x    pins 1 & 2 closed           closed
              3VDC)

         External lithium              open                 closed
              (6VDC)

         External alkaline             open                  open
              (6VDC)

                   SYSTEM CLOCK WAIT STATE CONFIGURATION

   Speed      Wait State       J2          J5          J8          J11

   10MHz          0          closed     pins 1 &     closed      pins 1 &
                                           2                        2

   10MHz          1           open      pins 1 &      open       pins 1 &
                                           2                        2

   12MHz          0          closed     pins 2 &     closed      pins 2 &
                                           3                        3

   12MHz          1           open      pins 2 &      open       pins 2 &
                                           3                        3

  Note:Pins designated should be in the closed position.

                     I/O MODE WAIT STATE CONFIGURATION

    Wait      8-BIT     8-BIT     16-BIT    16-BIT      SW1/       SW1/
   States
               I/O     Memory      I/O      Memory     Switch    Switch 2
                                                         1

     0        0 (6)     0 (6)     0 (3)      0 (3)     closed     closed

     1        0 (6)     0 (6)     0 (3)      1 (4)     closed      open

     2        1 (7)     1 (7)     1 (4)      1 (4)      open      closed

     3        2 (8)     2 (8)     1 (4)      2 (5)      open       open

