(TXT) View Source
       
       # CMS ENHANCEMENTS, INC.
       
          UNIVERSAL AT/XT CONTROLLER
       
          +------------------------------------------------------------+
          |------------------------------------------------------------|
          | Data bus:                | 16-bit ISA                      |
          |--------------------------+---------------------------------|
          | Size:                    | Half length, full-height card   |
          |--------------------------+---------------------------------|
          | Hard drive supported:    | Two IDE(AT) interface drives    |
          |--------------------------+---------------------------------|
          | Floppy drives supported: | None                            |
          +------------------------------------------------------------+
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          |                  Function                  |   Location    |
          |--------------------------------------------+---------------|
          | 40-pin IDE(AT) interface connector         |      J3       |
          |--------------------------------------------+---------------|
          | External power connector                   |      J4       |
          |--------------------------------------------+---------------|
          | Replaceable controller chip                |      U2       |
          |------------------------------------------------------------|
          |      Note: Chip U2 can be replaced with a U2 A/X-30 chip   |
          |      for compatibility with some PS-2 model 30 systems.    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTING                  |
          |------------------------------------------------------------|
          |               Function                | Location | Setting |
          |---------------------------------------+----------+---------|
          | » | Factory configured - do not alter |  SW1/1   |   N/A   |
          |---+-----------------------------------+----------+---------|
          | » | Factory configured - do not alter |  SW1/2   |   N/A   |
          |---+-----------------------------------+----------+---------|
          | » | Controller enabled                |  SW1/3   |   on    |
          |---+-----------------------------------+----------+---------|
          |   | Controller disabled               |  SW1/3   |   off   |
          |---+-----------------------------------+----------+---------|
          | » | CMS drive C select                |  SW1/4   |   on    |
          |---+-----------------------------------+----------+---------|
          |   | CMS drive D select                |  SW1/4   |   off   |
          |---+-----------------------------------+----------+---------|
          | » | I/O address select 1F0 - 1F7h     |  SW1/7   |   on    |
          |---+-----------------------------------+----------+---------|
          |   | I/O address select 170 - 177h     |  SW1/7   |   off   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 BASE MEMORY ADDRESS SELECT                 |
          |------------------------------------------------------------|
          |        Address        |      SW1/5       |      SW1/6      |
          |-----------------------+------------------+-----------------|
          | » |      C8000h       |       off        |       off       |
          |---+-------------------+------------------+-----------------|
          |   |      D8000h       |       off        |       on        |
          |---+-------------------+------------------+-----------------|
          |   |      CC000h       |        on        |       off       |
          |---+-------------------+------------------+-----------------|
          |   |      DC000h       |        on        |       on        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |           XT COMPATIBLE INTERRUPT CONFIGURATION            |
          |------------------------------------------------------------|
          |                IRQ                |         SW1/8          |
          |-----------------------------------+------------------------|
          | »        |          IRQ5          |           on           |
          |----------+------------------------+------------------------|
          |          |          IRQ2          |          off           |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |           AT COMPATIBLE INTERRUPT CONFIGURATION            |
          |------------------------------------------------------------|
          |                IRQ                 |         SW1/8         |
          |------------------------------------+-----------------------|
          | »        |          IRQ14          |          on           |
          |----------+-------------------------+-----------------------|
          |          |          IRQ11          |          off          |
          +------------------------------------------------------------+