SixPakPremium                                       AST Part Number 202094-001

The SixPakPremium is a multifunction memory expansion adapter for the IBM PC,
PC/XT, and 100% compatibles running at 4.77MHz.  This board can be configured
with from 256K to 1024K of memory using industry standard 256K DRAMS of 150NS
speed or faster.  The memory can be further expanded to 2048K by using the
Premium-Pak memory daughter-board.

The SixPakPremium comes standard with a serial port configurable as COM1: or
COM2:, a parallel port configurable as LPT1: or LPT2:, and a real time
clock/calendar.  Options that can be added to this board would include a
second serial port and a game port.

The memory on the SixPakPremium can be used to increase base conventional to
its maximum of 640K.  Any additional memory installed would be available as
EMS expanded memory.  Expanded memory standards supported by this board
include LIM 3.2, EEMS, and LIM 4.0.


SWITCH SETTINGS

    Conventional Memory Starting Address

                SW1-1  SW1-2  SW1-3  SW1-4
                -----  -----  -----  -----
          0K     OFF    OFF    OFF    OFF
         64K      ON    OFF    OFF    OFF
        128K     OFF     ON    OFF    OFF
        192K      ON     ON    OFF    OFF
        256K     OFF    OFF     ON    OFF
        320K      ON    OFF     ON    OFF
        384K     OFF     ON     ON    OFF
        448K      ON     ON     ON    OFF
        512K     OFF    OFF    OFF     ON
        576K      ON    OFF    OFF     ON
        640K     OFF     ON    OFF     ON

        NOTE: If all memory on the SixPakPremium is to be used as
              expanded memory, set starting address at 640K.

        SW1-5 - N/A

        SW1-6 - N/A

        SW1-7 - On to enable dual page mode

        SW1-8 - On to enable parity checking


    Base I/O Address

                SW2-1  SW2-2  SW2-3  SW2-4
                -----  -----  -----  -----
        208h      ON     ON     ON     ON
        218h      ON     ON     ON    OFF  (default)
        258h      ON    OFF     ON    OFF
        268h      ON    OFF    OFF     ON
        2A8h     OFF     ON    OFF     ON
        2B8h     OFF     ON    OFF    OFF
        2E8h     OFF    OFF    OFF     ON

        SW2-5 - N/A
        SW2-6 - N/A


    SixPakPremium Memory used for Base 640K

                      SW2-7  SW2-8
                      -----  -----
                0K      ON     ON
        Up to 256K     OFF     ON
        Up to 512K      ON    OFF
        Up to 768K*    OFF    OFF

        NOTE: Since the maximum amount of memory that DOS will recognize
              is 640K, any excess memory (over 640K total) will be available
              as expanded memory.


JUMPER SETTINGS

    E3 - Connect to enable serial port as COM1:
    E4 - Connect to enable serial port as COM2:
    E5 - Connect to enable second serial option as COM2:
    E6 - Connect to enable parallel port as LPT1:
    E7 - Connect to enable parallel port as LPT2:
    E8 - Connect to enable game port option
    E9 - Connect to enable clock/calendar

    E17 - Connect for IRQ7 (with LPT1:)

    E18 - Connect for IRQ3 (with second serial option)
    E19 - Connect for IRQ3 (with COM2: - first port)
    E20 - Connect for IRQ4 (with COM1: - first port)

    RS-232 Configuration - first port
    -----------------------------------------
    E21 - Connect for CTS forced true
    E22 - Connect for CTS normal (default)
    E23 - Connect for DSR forced true
    E24 - Connect for DSR normal (default)
    E25 - Connect for DCD forced true
    E26 - Connect for DCD normal (default)

    RS-232 Configuration - second port option
    -----------------------------------------
    E10 - Connect for CTS forced true
    E11 - Connect for CTS normal (default)
    E12 - Connect for DSR forced true
    E13 - Connect for DSR normal (default)
    E14 - Connect for DCD forced true
    E15 - Connect for DCD normal (default)


SWITCH BLOCK AND JUMPER LOCATIONS

    ͻ
                     E10-E15 ***                                    
                                                                   Ķ
                                    +------+                        
                                    | SW1  |                        
                                    +------+ +------+               
                                             | SW2  |               
                                             +------+               
                    *******           BATTERY     ***        ***    
                     E3-E9                 *    E18-E20    E21-E26  
                                          E17                      Ķ
    ͻ            ͼ 
                                                  ͼ      
                                                                      
