(TXT) View Source
       
       # 3COM CORPORATION
       
          ETHERLINK PLUS (3C505B; ASSY.#2012)
       
          NIC Type         Ethernet                                      
          Transfer Rate    10Mbps                                        
          Data Bus         16-bit ISA                                    
          Topology         Linear Bus                                    
          Wiring Type      RG-58A/U 50ohm coaxial                        
                                                                         
                           AUI transceiver via DB-15 port                
          Boot ROM         Available                                     
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                    CABLE TYPE SELECTION                    |
          |------------------------------------------------------------|
          |                Type                |      JP45 - JP51      |
          |------------------------------------+-----------------------|
          | » |     RG-58A/U 50ohm coaxial     |   Pins 2 & 3 Closed   |
          |---+--------------------------------+-----------------------|
          |   | AUI transceiver via DB-15 port |   Pins 1 & 2 Closed   |
          +------------------------------------------------------------+
       
       +--------------------------------------------------------------------------------+
       |                          INTERRUPT REQUEST SELECTION                           |
       |--------------------------------------------------------------------------------|
       |IRQ| JP29 | JP30 | JP31 | JP32 | JP33 | JP34 | JP35 | JP36 | JP37 | JP38 | JP39 |
       |---+------+------+------+------+------+------+------+------+------+------+------|
       | 2 | Open | Open | Open | Open | Open | Open | Open | Open | Open | Open |Closed|
       |---+------+------+------+------+------+------+------+------+------+------+------|
       | 3 | Open | Open | Open | Open | Open |Closed| Open | Open | Open | Open | Open |
       |---+------+------+------+------+------+------+------+------+------+------+------|
       | 4 | Open | Open | Open | Open | Open | Open |Closed| Open | Open | Open | Open |
       |---+------+------+------+------+------+------+------+------+------+------+------|
       | 5 | Open | Open | Open | Open | Open | Open | Open |Closed| Open | Open | Open |
       |---+------+------+------+------+------+------+------+------+------+------+------|
       | 6 | Open | Open | Open | Open | Open | Open | Open | Open |Closed| Open | Open |
       |---+------+------+------+------+------+------+------+------+------+------+------|
       | 7 | Open | Open | Open | Open | Open | Open | Open | Open | Open |Closed| Open |
       |---+------+------+------+------+------+------+------+------+------+------+------|
       |10 | Open | Open | Open | Open |Closed| Open | Open | Open | Open | Open | Open |
       |---+------+------+------+------+------+------+------+------+------+------+------|
       |11 | Open | Open | Open |Closed| Open | Open | Open | Open | Open | Open | Open |
       |---+------+------+------+------+------+------+------+------+------+------+------|
       |12 | Open | Open |Closed| Open | Open | Open | Open | Open | Open | Open | Open |
       |---+------+------+------+------+------+------+------+------+------+------+------|
       |14 |Closed| Open | Open | Open | Open | Open | Open | Open | Open | Open | Open |
       |---+------+------+------+------+------+------+------+------+------+------+------|
       |15 | Open |Closed| Open | Open | Open | Open | Open | Open | Open | Open | Open |
       +--------------------------------------------------------------------------------+
       
         +----------------------------------------------------------------+
         |                     DMA CHANNEL SELECTION                      |
         |----------------------------------------------------------------|
         |Channel | JP21 | JP22 | JP23 | JP24 | JP25 | JP26 | JP27 | JP28 |
         |--------+------+------+------+------+------+------+------+------|
         |Disabled| Open | Open | Open | Open | Open | Open |Closed|Closed|
         |--------+------+------+------+------+------+------+------+------|
         |   5    | Open | Open | Open | Open |Closed|Closed| Open | Open |
         |--------+------+------+------+------+------+------+------+------|
         |   6    | Open | Open |Closed|Closed| Open | Open | Open | Open |
         |--------+------+------+------+------+------+------+------+------|
         |   7    |Closed|Closed| Open | Open | Open | Open | Open | Open |
         +----------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 I/O BASE ADDRESS SELECTION                 |
          |------------------------------------------------------------|
          | Address |  JP4   |  JP5   |  JP6   |  JP7  |  JP8  |  JP9  |
          |---------+--------+--------+--------+-------+-------+-------|
          |  200h   | Pins 1 | Pins 1 | Pins 1 | Pins  | Pins  | Pins  |
          |         |  & 2   |  & 2   |  & 2   | 1 & 2 | 1 & 2 | 2 & 3 |
          |---------+--------+--------+--------+-------+-------+-------|
          |  210h   | Pins 2 | Pins 1 | Pins 1 | Pins  | Pins  | Pins  |
          |         |  & 3   |  & 2   |  & 2   | 1 & 2 | 2 & 3 | 1 & 2 |
          |---------+--------+--------+--------+-------+-------+-------|
          |  220h   | Pins 1 | Pins 2 | Pins 1 | Pins  | Pins  | Pins  |
          |         |  & 2   |  & 3   |  & 2   | 1 & 2 | 1 & 2 | 2 & 3 |
          |---------+--------+--------+--------+-------+-------+-------|
          |  230h   | Pins 2 | Pins 2 | Pins 1 | Pins  | Pins  | Pins  |
          |         |  & 3   |  & 3   |  & 2   | 1 & 2 | 1 & 2 | 2 & 3 |
          |---------+--------+--------+--------+-------+-------+-------|
          |  240h   | Pins 1 | Pins 1 | Pins 2 | Pins  | Pins  | Pins  |
          |         |  & 2   |  & 2   |  & 3   | 1 & 2 | 1 & 2 | 2 & 3 |
          |---------+--------+--------+--------+-------+-------+-------|
          |  250h   | Pins 2 | Pins 1 | Pins 2 | Pins  | Pins  | Pins  |
          |         |  & 3   |  & 2   |  & 3   | 1 & 2 | 1 & 2 | 2 & 3 |
          |---------+--------+--------+--------+-------+-------+-------|
          |  260h   | Pins 1 | Pins 2 | Pins 2 | Pins  | Pins  | Pins  |
          |         |  & 2   |  & 3   |  & 3   | 1 & 2 | 1 & 2 | 2 & 3 |
          |---------+--------+--------+--------+-------+-------+-------|
          |  270h   | Pins 2 | Pins 2 | Pins 2 | Pins  | Pins  | Pins  |
          |         |  & 3   |  & 3   |  & 3   | 2 & 3 | 1 & 2 | 2 & 3 |
          |---------+--------+--------+--------+-------+-------+-------|
          |  280h   | Pins 1 | Pins 1 | Pins 1 | Pins  | Pins  | Pins  |
          |         |  & 2   |  & 2   |  & 2   | 2 & 3 | 1 & 2 | 2 & 3 |
          |---------+--------+--------+--------+-------+-------+-------|
          |  290h   | Pins 2 | Pins 1 | Pins 1 | Pins  | Pins  | Pins  |
          |         |  & 3   |  & 2   |  & 2   | 2 & 3 | 1 & 2 | 2 & 3 |
          |---------+--------+--------+--------+-------+-------+-------|
          |  2A0h   | Pins 1 | Pins 2 | Pins 1 | Pins  | Pins  | Pins  |
          |         |  & 2   |  & 3   |  & 2   | 2 & 3 | 1 & 2 | 2 & 3 |
          |---------+--------+--------+--------+-------+-------+-------|
          |  2B0h   | Pins 2 | Pins 2 | Pins 1 | Pins  | Pins  | Pins  |
          |         |  & 3   |  & 3   |  & 2   | 2 & 3 | 1 & 2 | 2 & 3 |
          |---------+--------+--------+--------+-------+-------+-------|
          |  2C0h   | Pins 1 | Pins 1 | Pins 2 | Pins  | Pins  | Pins  |
          |         |  & 2   |  & 2   |  & 3   | 2 & 3 | 1 & 2 | 2 & 3 |
          |---------+--------+--------+--------+-------+-------+-------|
          |  2D0h   | Pins 2 | Pins 1 | Pins 2 | Pins  | Pins  | Pins  |
          |         |  & 3   |  & 2   |  & 3   | 2 & 3 | 1 & 2 | 2 & 3 |
          |---------+--------+--------+--------+-------+-------+-------|
          |  2E0h   | Pins 1 | Pins 2 | Pins 2 | Pins  | Pins  | Pins  |
          |         |  & 2   |  & 3   |  & 3   | 2 & 3 | 1 & 2 | 2 & 3 |
          |---------+--------+--------+--------+-------+-------+-------|
          |  2F0h   | Pins 2 | Pins 2 | Pins 2 | Pins  | Pins  | Pins  |
          |         |  & 3   |  & 3   |  & 3   | 2 & 3 | 1 & 2 | 2 & 3 |
          |---------+--------+--------+--------+-------+-------+-------|
          |  300h   | Pins 1 | Pins 1 | Pins 1 | Pins  | Pins  | Pins  |
          |         |  & 2   |  & 2   |  & 2   | 1 & 2 | 2 & 3 | 2 & 3 |
          |---------+--------+--------+--------+-------+-------+-------|
          |  310h   | Pins 2 | Pins 1 | Pins 1 | Pins  | Pins  | Pins  |
          |         |  & 3   |  & 2   |  & 2   | 1 & 2 | 2 & 3 | 2 & 3 |
          |---------+--------+--------+--------+-------+-------+-------|
          |  320h   | Pins 1 | Pins 2 | Pins 1 | Pins  | Pins  | Pins  |
          |         |  & 2   |  & 3   |  & 2   | 1 & 2 | 2 & 3 | 2 & 3 |
          |---------+--------+--------+--------+-------+-------+-------|
          |  330h   | Pins 2 | Pins 2 | Pins 1 | Pins  | Pins  | Pins  |
          |         |  & 3   |  & 3   |  & 2   | 1 & 2 | 2 & 3 | 2 & 3 |
          |---------+--------+--------+--------+-------+-------+-------|
          |  340h   | Pins 1 | Pins 1 | Pins 2 | Pins  | Pins  | Pins  |
          |         |  & 2   |  & 2   |  & 3   | 1 & 2 | 2 & 3 | 2 & 3 |
          |---------+--------+--------+--------+-------+-------+-------|
          |  350h   | Pins 2 | Pins 1 | Pins 2 | Pins  | Pins  | Pins  |
          |         |  & 3   |  & 2   |  & 3   | 1 & 2 | 2 & 3 | 2 & 3 |
          |---------+--------+--------+--------+-------+-------+-------|
          |  360h   | Pins 1 | Pins 2 | Pins 2 | Pins  | Pins  | Pins  |
          |         |  & 2   |  & 3   |  & 3   | 1 & 2 | 2 & 3 | 2 & 3 |
          |---------+--------+--------+--------+-------+-------+-------|
          |  370h   | Pins 2 | Pins 1 | Pins 2 | Pins  | Pins  | Pins  |
          |         |  & 3   |  & 2   |  & 3   | 2 & 3 | 2 & 3 | 2 & 3 |
          |---------+--------+--------+--------+-------+-------+-------|
          |  380h   | Pins 1 | Pins 1 | Pins 1 | Pins  | Pins  | Pins  |
          |         |  & 2   |  & 2   |  & 2   | 2 & 3 | 2 & 3 | 2 & 3 |
          |---------+--------+--------+--------+-------+-------+-------|
          |  390h   | Pins 2 | Pins 1 | Pins 1 | Pins  | Pins  | Pins  |
          |         |  & 3   |  & 2   |  & 2   | 2 & 3 | 2 & 3 | 2 & 3 |
          |---------+--------+--------+--------+-------+-------+-------|
          |  3A0h   | Pins 1 | Pins 2 | Pins 1 | Pins  | Pins  | Pins  |
          |         |  & 2   |  & 3   |  & 2   | 2 & 3 | 2 & 3 | 2 & 3 |
          |---------+--------+--------+--------+-------+-------+-------|
          |  3B0h   | Pins 1 | Pins 2 | Pins 2 | Pins  | Pins  | Pins  |
          |         |  & 2   |  & 3   |  & 3   | 2 & 3 | 2 & 3 | 2 & 3 |
          |---------+--------+--------+--------+-------+-------+-------|
          |  3C0h   | Pins 1 | Pins 1 | Pins 2 | Pins  | Pins  | Pins  |
          |         |  & 2   |  & 2   |  & 3   | 2 & 3 | 2 & 3 | 2 & 3 |
          |---------+--------+--------+--------+-------+-------+-------|
          |  3D0h   | Pins 2 | Pins 1 | Pins 2 | Pins  | Pins  | Pins  |
          |         |  & 3   |  & 2   |  & 3   | 2 & 3 | 2 & 3 | 2 & 3 |
          |---------+--------+--------+--------+-------+-------+-------|
          |  3E0h   | Pins 1 | Pins 2 | Pins 2 | Pins  | Pins  | Pins  |
          |         |  & 2   |  & 3   |  & 3   | 2 & 3 | 2 & 3 | 2 & 3 |
          |---------+--------+--------+--------+-------+-------+-------|
          |  3F0h   | Pins 2 | Pins 2 | Pins 2 | Pins  | Pins  | Pins  |
          |         |  & 3   |  & 3   |  & 3   | 2 & 3 | 2 & 3 | 2 & 3 |
          |------------------------------------------------------------|
          | Note:Pins designated should be in the closed position.     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 BOOT ROM ADDRESS SELECTION                 |
          |------------------------------------------------------------|
          | Address | JP13  | JP14  | JP15 | JP16 | JP17 | JP18 | JP19 |
          |---------+-------+-------+------+------+------+------+------|
          | CC000h  | Pins  | Pins  | Pins | Pins | Pins | Pins | Pins |
          |         | 2 & 3 | 1 & 2 | 1 &  | 2 &  | 2 &  | 1 &  | 1 &  |
          |         |       |       |  2   |  3   |  3   |  2   |  2   |
          |---------+-------+-------+------+------+------+------+------|
          | EC000h  | Pins  | Pins  | Pins | Pins | Pins | Pins | Pins |
          |         | 2 & 3 | 2 & 3 | 1 &  | 2 &  | 2 &  | 1 &  | 1 &  |
          |         |       |       |  2   |  3   |  3   |  2   |  2   |
          |------------------------------------------------------------|
          | Note:Pins designated should be in the closed position.     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   BOOT ROM CONFIGURATION                   |
          |------------------------------------------------------------|
          |          Setting           |             JP12              |
          |----------------------------+-------------------------------|
          | » |        Disabled        |       Pins 1 & 2 Closed       |
          |---+------------------------+-------------------------------|
          |   |        Enabled         |       Pins 2 & 3 Closed       |
          +------------------------------------------------------------+