
UNIDENTIFIED

HT101A 286

Processor         80286
Processor Speed   10/12MHz
Chip Set          Unknown
Max. Onboard DRAM 4MB
Cache             None
BIOS              AMI
Dimensions        220mm x 220mm
I/O Options       None
NPU Options       80287

[Image]

                                CONNECTIONS

  Purpose                   Location    Purpose                  Location

  Turbo switch                 J4       Speaker                    J17

  External battery            J14       Turbo LED                  J19

  Power LED & keylock         J16       Reset switch               J20

                        USER CONFIGURABLE SETTINGS

               Function                  Jumper/Switch        Position

     NPU mode select synchronous             JP2             pins 2 & 3
      with CPU                                                 closed

      NPU mode select asynchronous            JP2             pins 1 & 2
      with CPU                                                 closed

     Parity check enabled                    JP3              Closed

      Parity check disabled                   JP3               Open

     CPU speed select                        JP4             pins 1 & 2
      [CTRL][ALT][+] = fast,                                   closed
      [CTRL][ALT][-] = slow

      CPU speed select fast                   JP4             pins 2 & 3
                                                               closed

     DRAM select 0 wait states               J18             pins 2 & 3
                                                               closed

      DRAM select 1 wait state                J18               Open

      DRAM wait state select                  J18             pins 1 & 2
      [CTRL][ALT][0] = 0                                       closed
      [CTRL][ALT][1] = 1

     Monitor type select color              SW1/1               On

      Monitor type select monochrome         SW1/1               Off

                            DRAM CONFIGURATION

   Size      Bank 0      P-0       Bank 1       P-1      Bank 2   Bank 3

  512KB        (4)        (2)       NONE       NONE       NONE     NONE
             44256      41256

  640KB        (4)        (2)      (4) 4464   (2) 4164    NONE     NONE
             44256      41256

   1MB         (4)        (2)        (4)        (2)       NONE     NONE
             44256      41256       44256      41256

   2MB        NONE       NONE       NONE       NONE      (2) 1M    NONE
                                                          x 9

   4MB        NONE       NONE       NONE       NONE      (2) 1M    (2) 1M
                                                          x 9       x 9

      DRAM SWITCH CONFIGURATION

  Size     SW1/2    SW1/3    SW1/4

  512KB     On        On      Off

  640KB     On       Off       On

   1MB      On       Off      Off

   2MB      Off      Off       On

   4MB      Off      Off      Off

