(TXT) View Source
       
       # MONOLITHIC SYSTEMS, INC. (COLORADO MSI)
       
          MICROFRAME 486P
       
          Processor             80486SX/80487SX/80486DX/80486DX2         
          Processor Speed       25/33/50/66(internal)MHz                 
          Chip Set              C & T PEAK DM                            
          Max. Onboard DRAM     32MB                                     
          Cache                 128KB                                    
          BIOS                  AMI                                      
          Dimensions            330mm x 218mm                            
          I/O Options           Bus mouse connector                      
          NPU Options           4167                                     
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          | Purpose                | Location | Purpose     | Location |
          |------------------------+----------+-------------+----------|
          | External battery       |    J1    | Auxiliary   |   J15    |
          |                        |          | keyboard    |          |
          |------------------------+----------+-------------+----------|
          | IDE interface LED      |    J3    | Bus mouse   |   J19    |
          |------------------------+----------+-------------+----------|
          | Front panel composite  |    J6    | Speaker     |   J27    |
          | cable                  |          |             |          |
          |------------------------+----------+-------------+----------|
          | Ready LED              |    J7    | Power LED & |   J44    |
          |                        |          | keylock     |          |
          |------------------------+----------+-------------+----------|
          | Reset switch           |    J8    |             |          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |               Function               | Jumper |  Position  |
          |--------------------------------------+--------+------------|
          | » | CMOS memory normal operation     |   J2   |    Open    |
          |---+----------------------------------+--------+------------|
          |   | CMOS memory clear                |   J2   |   Closed   |
          |---+----------------------------------+--------+------------|
          | » | Factory configured - do not      |   J9   |    Open    |
          |   | alter                            |        |            |
          |---+----------------------------------+--------+------------|
          | » | Factory configured - do not      |  J10   | pins 2 & 3 |
          |   | alter                            |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | Factory configured - do not      |  J11   |   Closed   |
          |   | alter                            |        |            |
          |---+----------------------------------+--------+------------|
          | » | Factory configured - do not      |  J17   | pins 2 & 3 |
          |   | alter                            |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | Monitor type select color        |  J18   | pins 2 & 3 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          |   | Monitor type select monochrome   |  J18   | pins 1 & 2 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | Factory configured - do not      |  J20   | pins 1 & 2 |
          |   | alter                            |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | Bus mouse enabled                |  J21   |   Closed   |
          |---+----------------------------------+--------+------------|
          |   | Bus mouse disabled               |  J21   |    Open    |
          |---+----------------------------------+--------+------------|
          | » | Factory configured - do not      |  J22   | pins 1 & 2 |
          |   | alter                            |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | Factory configured - do not      |  J23   | pins 2 & 3 |
          |   | alter                            |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | Factory configured - do not      |  J24   |    Open    |
          |   | alter                            |        |            |
          |---+----------------------------------+--------+------------|
          | » | Cache enabled                    |  J32   | pins 1 & 2 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          |   | Cache disabled                   |  J32   | pins 2 & 3 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | DMA signal select active high    |  J35   | pins 1 & 2 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          |   | DMA signal select active low     |  J35   | pins 2 & 3 |
          |   |                                  |        |   closed   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     DRAM CONFIGURATION                     |
          |------------------------------------------------------------|
          | Size |   Bank 0    |   Bank 1    |   Bank 2   |   Bank 3   |
          |------+-------------+-------------+------------+------------|
          | 1MB  | (1) 256K x  |    NONE     |    NONE    |    NONE    |
          |      |     36      |             |            |            |
          |------+-------------+-------------+------------+------------|
          | 2MB  | (1) 512K x  |    NONE     |    NONE    |    NONE    |
          |      |     36      |             |            |            |
          |------+-------------+-------------+------------+------------|
          | 3MB  | (1) 512K x  | (1) 256K x  |    NONE    |    NONE    |
          |      |     36      |     36      |            |            |
          |------+-------------+-------------+------------+------------|
          | 4MB  | (1) 1M x 36 |    NONE     |    NONE    |    NONE    |
          |------+-------------+-------------+------------+------------|
          | 5MB  | (1) 1M x 36 | (1) 256K x  |    NONE    |    NONE    |
          |      |             |     36      |            |            |
          |------+-------------+-------------+------------+------------|
          | 6MB  | (1) 512K x  | (1) 1M x 36 |    NONE    |    NONE    |
          |      |     36      |             |            |            |
          |------+-------------+-------------+------------+------------|
          | 7MB  | (1) 512K x  | (1) 1M x 36 | (1) 256K x |    NONE    |
          |      |     36      |             |     36     |            |
          |------+-------------+-------------+------------+------------|
          | 8MB  | (1) 2M x 36 |    NONE     |    NONE    |    NONE    |
          |------+-------------+-------------+------------+------------|
          | 9MB  | (1) 2M x 36 | (1) 256K x  |    NONE    |    NONE    |
          |      |             |     36      |            |            |
          |------+-------------+-------------+------------+------------|
          | 10MB | (1) 2M x 36 | (1) 512K x  |    NONE    |    NONE    |
          |      |             |     36      |            |            |
          |------+-------------+-------------+------------+------------|
          | 11MB | (1) 2M x 36 | (1) 512K x  | (1) 256K x |    NONE    |
          |      |             |     36      |     36     |            |
          |------+-------------+-------------+------------+------------|
          | 12MB | (1) 2M x 36 | (1) 1M x 36 |    NONE    |    NONE    |
          |------+-------------+-------------+------------+------------|
          | 13MB | (1) 2M x 36 | (1) 1M x 36 | (1) 256K x |    NONE    |
          |      |             |             |     36     |            |
          |------+-------------+-------------+------------+------------|
          | 14MB | (1) 2M x 36 | (1) 512K x  |  (1) 1M x  |    NONE    |
          |      |             |     36      |     36     |            |
          |------+-------------+-------------+------------+------------|
          | 15MB | (1) 2M x 36 | (1) 512K x  |  (1) 1M x  | (1) 256K x |
          |      |             |     36      |     36     |     36     |
          |------+-------------+-------------+------------+------------|
          | 16MB | (1) 2M x 36 | (1) 2M x 36 |    NONE    |    NONE    |
          |------+-------------+-------------+------------+------------|
          | 17MB | (1) 2M x 36 | (1) 2M x 36 | (1) 256K x |    NONE    |
          |      |             |             |     36     |            |
          |------+-------------+-------------+------------+------------|
          | 18MB | (1) 2M x 36 | (1) 2M x 36 | (1) 512K x |    NONE    |
          |      |             |             |     36     |            |
          |------+-------------+-------------+------------+------------|
          | 19MB | (1) 2M x 36 | (1) 2M x 36 | (1) 512K x | (1) 256K x |
          |      |             |             |     36     |     36     |
          |------+-------------+-------------+------------+------------|
          | 20MB | (1) 2M x 36 | (1) 2M x 36 |  (1) 1M x  |    NONE    |
          |      |             |             |     36     |            |
          |------+-------------+-------------+------------+------------|
          | 21MB | (1) 2M x 36 | (1) 2M x 36 |  (1) 1M x  | (1) 256K x |
          |      |             |             |     36     |     36     |
          |------+-------------+-------------+------------+------------|
          | 22MB | (1) 2M x 36 | (1) 2M x 36 | (1) 512K x |  (1) 1M x  |
          |      |             |             |     36     |     36     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 DRAM CONFIGURATION (CON’T)                 |
          |------------------------------------------------------------|
          | Size |   Bank 0    |   Bank 1    |  Bank 2  |    Bank 3    |
          |------+-------------+-------------+----------+--------------|
          | 24MB | (1) 2M x 36 | (1) 2M x 36 | (1) 2M x |     NONE     |
          |      |             |             |    36    |              |
          |------+-------------+-------------+----------+--------------|
          | 25MB | (1) 2M x 36 | (1) 2M x 36 | (1) 2M x |  (1) 256K x  |
          |      |             |             |    36    |      36      |
          |------+-------------+-------------+----------+--------------|
          | 26MB | (1) 2M x 36 | (1) 2M x 36 | (1) 2M x |  (1) 512K x  |
          |      |             |             |    36    |      36      |
          |------+-------------+-------------+----------+--------------|
          | 28MB | (1) 2M x 36 | (1) 2M x 36 | (1) 2M x | (1) 1M x 36  |
          |      |             |             |    36    |              |
          |------+-------------+-------------+----------+--------------|
          | 32MB | (1) 2M x 36 | (1) 2M x 36 | (1) 2M x | (1) 2M x 36  |
          |      |             |             |    36    |              |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    CACHE CONFIGURATION                     |
          |------------------------------------------------------------|
          |       Size       |       Bank 0       |        TAG         |
          |------------------+--------------------+--------------------|
          |      128KB       |    (4) 32K x 8     |    (1) 32K x 8     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   CPU TYPE CONFIGURATION                   |
          |------------------------------------------------------------|
          |   Type    |  J12   |        J13        |        J14        |
          |-----------+--------+-------------------+-------------------|
          |  80486SX  |  Open  | pins 2 & 3 closed |       Open        |
          |-----------+--------+-------------------+-------------------|
          |  80487SX  | Closed | pins 2 & 3 closed | pins 2 & 3 closed |
          |-----------+--------+-------------------+-------------------|
          |  80486DX  | Closed | pins 1 & 2 closed | pins 1 & 2 closed |
          |-----------+--------+-------------------+-------------------|
          | 80486DX2  | Closed | pins 1 & 2 closed | pins 1 & 2 closed |
          +------------------------------------------------------------+