SEALEVEL SYSTEMS, INC.

PIO-48

Card Type           Parallel card
Chip Set            Unidentified
I/O Options         Parallel ports (2), 40-pin connectors (2)
Data Bus            8-bit ISA
Card Size           Half-length, full-height

[Image]

                                CONNECTIONS

          Function             Label           Function             Label

  Parallel port 1               J1     Parallel port 2               J3

  40-pin connector A            J2     40-pin connector B            J4

                        USER CONFIGURABLE SETTINGS

                    Function                      Label      Position

  Wait State enabled                              SW1/8         On

  Wait State disabled                             SW1/8         Off

                        BASE I/O ADDRESS SELECTION

  Setting    SW1/1    SW1/2    SW1/3    SW1/4    SW1/5    SW1/6    SW1/7

   280h       Off      On       Off      On       On       On        On

   2A0h       Off      On       Off      On       Off      On        On

    1F8       Off      Off      Off      Off      Off      Off       On

   2F8h       Off      Off      Off      Off      Off      On       Off

   378h       Off      Off      Off      Off      On       Off      Off

   3B8h       Off      Off      Off      On       Off      Off      Off

   3D8h       Off      Off      On       Off      Off      Off      Off

   3E8h       Off      On       Off      Off      Off      Off      Off

   3F0h       On       Off      Off      Off      Off      Off      Off

   3F8h       Off      Off      Off      Off      Off      Off      Off

                                   Note:

  A total of 255 base address settings are available. The switches are a
  binary representation of the decimal memory addresses. SW1/7 is the
  Most Significant Bit and switch SW1/1 is the Least Significant Bit. The
  switches have the following decimal values: SW1/7=512, SW1/6=256,
  SW1/5=128, SW1/4=64, SW1/3=32, SW1/2=16, SW1/1=8. Turn off the switches
  and add the values of the switches to obtain the correct memory
  address. (Off=1, On=0)

                PARALLEL PORT 1 INTERRUPT SELECTION

   IRQ      J5/A      J5/B     J5/C      J5/D      J5/E      J5/F

   IRQ2     Closed    Open     Open      Open      Open      Open

   IRQ3     Open     Closed    Open      Open      Open      Open

   IRQ4     Open      Open     Closed    Open      Open      Open

   IRQ5     Open      Open     Open      Closed    Open      Open

   IRQ6     Open      Open     Open      Open     Closed     Open

   IRQ7     Open      Open     Open      Open      Open     Closed

                PARALLEL PORT 2 INTERRUPT SELECTION

   IRQ      J6/A      J6/B     J6/C      J6/D      J6/E      J6/F

   IRQ2     Closed    Open     Open      Open      Open      Open

   IRQ3     Open     Closed    Open      Open      Open      Open

   IRQ4     Open      Open     Closed    Open      Open      Open

   IRQ5     Open      Open     Open      Closed    Open      Open

   IRQ6     Open      Open     Open      Open     Closed     Open

   IRQ7     Open      Open     Open      Open      Open     Closed