(TXT) View Source
       
       # SEA LEVEL SYSTEMS, INC.
       
          ACB-IV
       
          Card Type           Serial card                                
          Chip Set            Unidentified                               
          I/O Options         Serial port                                
          Data Bus            8-bit ISA                                  
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          |           Function            |           Label            |
          |-------------------------------+----------------------------|
          | Serial port                   |             P1             |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |              Function               | Label |   Position   |
          |-------------------------------------+-------+--------------|
          | » | Factory configured – do not     |  E4   | Unidentified |
          |   | alter                           |       |              |
          |---+---------------------------------+-------+--------------|
          | » | Factory configured – do not     |  E6   | Unidentified |
          |   | alter                           |       |              |
          |---+---------------------------------+-------+--------------|
          | » | Factory configured – do not     |  E7   | Unidentified |
          |   | alter                           |       |              |
          |---+---------------------------------+-------+--------------|
          | » | Factory configured – do not     |  E9   | Unidentified |
          |   | alter                           |       |              |
          |---+---------------------------------+-------+--------------|
          | » | Factory configured – do not     |  E10  | Unidentified |
          |   | alter                           |       |              |
          |---+---------------------------------+-------+--------------|
          | » | Factory configured – do not     |  SW2  | Unidentified |
          |   | alter                           |       |              |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  SERIAL PORT 1 SELECTION                   |
          |------------------------------------------------------------|
          |               Setting                |         E2          |
          |--------------------------------------+---------------------|
          |        Enabled (RS-485 only)         |  Pins 1 & 2 closed  |
          |--------------------------------------+---------------------|
          | Transmit clock input (TXC in on pins |  Pins 3 & 4 closed  |
          |            12 & 15 of P1)            |                     |
          |--------------------------------------+---------------------|
          |  Transmit clock output (TXC out on   |  Pins 5 & 6 closed  |
          |         pins 12 & 15 of P1)          |                     |
          |--------------------------------------+---------------------|
          | Receive clock input (RXC in on pins  |  Pins 7 & 8 closed  |
          |               9 & 17)                |                     |
          |--------------------------------------+---------------------|
          |               Not used               |  Pins 9 & 10 open   |
          |--------------------------------------+---------------------|
          |  Transmit clock output (TXC out on   | Pins 11 & 12 closed |
          |         pins 12 & 15 of P1)          |                     |
          |--------------------------------------+---------------------|
          |  Transmit clock output (TXC out on   | Pins 13 & 14 closed |
          |         pins 12 & 15 of P1)          |                     |
          |--------------------------------------+---------------------|
          |               Not used               |  Pins 15 & 16 open  |
          |--------------------------------------+---------------------|
          |               Not used               |  Pins 17 & 18 open  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  SERIAL PORT 2 SELECTION                   |
          |------------------------------------------------------------|
          |               Setting                |         E1          |
          |--------------------------------------+---------------------|
          |        Enabled (RS-485 only)         |  Pins 1 & 2 closed  |
          |--------------------------------------+---------------------|
          | Transmit clock input (TXC in on pins |  Pins 3 & 4 closed  |
          |            12 & 15 of P1)            |                     |
          |--------------------------------------+---------------------|
          |  Transmit clock output (TXC out on   |  Pins 5 & 6 closed  |
          |         pins 12 & 15 of P1)          |                     |
          |--------------------------------------+---------------------|
          | Receive clock input (RXC in on pins  |  Pins 7 & 8 closed  |
          |               9 & 17)                |                     |
          |--------------------------------------+---------------------|
          |               Not used               |  Pins 9 & 10 open   |
          |--------------------------------------+---------------------|
          |  Transmit clock output (TXC out on   | Pins 11 & 12 closed |
          |         pins 12 & 15 of P1)          |                     |
          |--------------------------------------+---------------------|
          |  Transmit clock output (TXC out on   | Pins 13 & 14 closed |
          |         pins 12 & 15 of P1)          |                     |
          |--------------------------------------+---------------------|
          |               Not used               |  Pins 15 & 16 open  |
          |--------------------------------------+---------------------|
          |               Not used               |  Pins 17 & 18 open  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |              SERIAL PORT INTERRUPT SELECTION               |
          |------------------------------------------------------------|
          |            IRQ             |              E8               |
          |----------------------------+-------------------------------|
          |            2/9             |       Pins 1 & 2 closed       |
          |----------------------------+-------------------------------|
          |             3              |       Pins 3 & 4 closed       |
          |----------------------------+-------------------------------|
          |             4              |       Pins 5 & 6 closed       |
          |----------------------------+-------------------------------|
          |             5              |       Pins 7 & 8 closed       |
          |----------------------------+-------------------------------|
          |      Normal IRQ mode       |      Pins 9 & 10 closed       |
          |----------------------------+-------------------------------|
          |       Multi IRQ mode       |      Pins 11 & 12 closed      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 BASE I/O ADDRESS SELECTION                 |
          |------------------------------------------------------------|
          |Setting | SW1/1 | SW1/2 | SW1/3 |SW1/4 |SW1/5 |SW1/6 |SW1/7 |
          |--------+-------+-------+-------+------+------+------+------|
          |  238   |  Off  |  On   |  On   |  On  | Off  | Off  | Off  |
          |--------+-------+-------+-------+------+------+------+------|
          |  280   |  Off  |  On   |  Off  |  On  |  On  |  On  |  On  |
          |--------+-------+-------+-------+------+------+------+------|
          |  2A0   |  Off  |  On   |  Off  |  On  | Off  |  On  |  On  |
          |--------+-------+-------+-------+------+------+------+------|
          |  2E8   |  Off  |  On   |  Off  | Off  | Off  |  On  | Off  |
          |--------+-------+-------+-------+------+------+------+------|
          |  300   |  Off  |  Off  |  On   |  On  |  On  |  On  |  On  |
          |--------+-------+-------+-------+------+------+------+------|
          |  328   |  Off  |  Off  |  On   |  On  | Off  |  On  | Off  |
          |--------+-------+-------+-------+------+------+------+------|
          |  3E8   |  Off  |  Off  |  Off  | Off  | Off  |  On  | Off  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   DMA CHANNEL SELECTION                    |
          |------------------------------------------------------------|
          |               Channel                |         E3          |
          |--------------------------------------+---------------------|
          |         1 – two channel mode         |  Pins 1 & 2 closed  |
          |--------------------------------------+---------------------|
          |         3 – two channel mode         |  Pins 1 & 2 closed  |
          |--------------------------------------+---------------------|
          |      Two channel A/B mode A3B1       |  Pins 3 & 4 closed  |
          |--------------------------------------+---------------------|
          |      Two channel A/B mode A1B3       |  Pins 5 & 6 closed  |
          |--------------------------------------+---------------------|
          | Closed = channel A, Open = channel B |  Pins 7 & 8 closed  |
          |--------------------------------------+---------------------|
          |      3 – acknowledges channel 3      | Pins 9 & 10 closed  |
          |--------------------------------------+---------------------|
          |      1 – acknowledges channel 1      | Pins 11 & 12 closed |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                       DMA SELECTION                        |
          |------------------------------------------------------------|
          |               Setting                |         E5          |
          |--------------------------------------+---------------------|
          |    SCC channel A/B uses channel 3    |  Pins 1 & 2 closed  |
          |--------------------------------------+---------------------|
          |     SCC channel A uses channel 3     |  Pins 3 & 4 closed  |
          |--------------------------------------+---------------------|
          |    SCC channel A/B uses channel 1    |  Pins 5 & 6 closed  |
          |--------------------------------------+---------------------|
          |     SCC channel A uses channel 3     |  Pins 7 & 8 closed  |
          |--------------------------------------+---------------------|
          |    SCC channel B enabled for half    | Pins 9 & 10 closed  |
          |         duplex DMA transfers         |                     |
          |--------------------------------------+---------------------|
          | SCC channel A – DMA channel 1/3 for  | Pins 11 & 12 closed |
          |        full duplex transfers         |                     |
          |--------------------------------------+---------------------|
          |  DMA tri state drivers permanently   | Pins 13 & 14 closed |
          |               enabled                |                     |
          |--------------------------------------+---------------------|
          |   DMA tri state drivers enabled by   | Pins 15 & 16 closed |
          |      status control port bit 7       |                     |
          +------------------------------------------------------------+