CNET TECHNOLOGY, INC.
=====================

   CN800E/880E

   NIC Type         Ethernet                                      
   Transfer Rate    10Mbps                                        
   Data Bus         16-bit ISA                                    
   Topology         Star                                          
   Wiring Type      Unshielded twisted pair                       
                                                                  
                    AUI transceiver via DB-15 port                
   Boot ROM         Available                                     

<gopher://bitreich.org/I/th99/n/C-D/40173-1.png>
   

+--------------------------------------------------------------------+
|                         INTERRUPT REQUEST                          |
|--------------------------------------------------------------------|
| IRQ | JP1A | JP1B | JP1C | JP1D | JP1E | JP1F | JP1G | JP1H | JP1I |
|-----+------+------+------+------+------+------+------+------+------|
| |2/9|Closed| Open | Open | Open | Open | Open | Open | Open | Open |
|-+---+------+------+------+------+------+------+------+------+------|
|>>| 3 | Open |Closed| Open | Open | Open | Open | Open | Open | Open |
|-+---+------+------+------+------+------+------+------+------+------|
| | 4 | Open | Open |Closed| Open | Open | Open | Open | Open | Open |
|-+---+------+------+------+------+------+------+------+------+------|
| | 5 | Open | Open | Open |Closed| Open | Open | Open | Open | Open |
|-+---+------+------+------+------+------+------+------+------+------|
| | 7 | Open | Open | Open | Open |Closed| Open | Open | Open | Open |
|-+---+------+------+------+------+------+------+------+------+------|
| |10 | Open | Open | Open | Open | Open |Closed| Open | Open | Open |
|-+---+------+------+------+------+------+------+------+------+------|
| |11 | Open | Open | Open | Open | Open | Open |Closed| Open | Open |
|-+---+------+------+------+------+------+------+------+------+------|
| |12 | Open | Open | Open | Open | Open | Open | Open |Closed| Open |
|-+---+------+------+------+------+------+------+------+------+------|
| |15 | Open | Open | Open | Open | Open | Open | Open | Open |Closed|
+--------------------------------------------------------------------+

   +------------------------------------------------------------+
   |                         WAIT STATE                         |
   |------------------------------------------------------------|
   |      Setting       |       JP2A        |       JP2B        |
   |--------------------+-------------------+-------------------|
   |>> | 0 Wait states  | Pins 1 & 2 closed | Pins 1 & 2 closed |
   |---+----------------+-------------------+-------------------|
   |   |  1 Wait state  | Pins 2 & 3 closed | Pins 1 & 2 closed |
   |---+----------------+-------------------+-------------------|
   |   | 2 Wait states  | Pins 2 & 3 closed | Pins 2 & 3 closed |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                          BOOT ROM                          |
   |------------------------------------------------------------|
   |          Setting           |              JP5              |
   |----------------------------+-------------------------------|
   |>> |        Disabled        |       Pins 1 & 2 closed       |
   |---+------------------------+-------------------------------|
   |   |        Enabled         |       Pins 2 & 3 closed       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                       BOOT ROM SIZE                        |
   |------------------------------------------------------------|
   |       Size       |        JP6         |        JP7         |
   |------------------+--------------------+--------------------|
   |>> |     16KB     | Pins 1 & 2 closed  | Pins 1 & 2 closed  |
   |---+--------------+--------------------+--------------------|
   |   |     32KB     | Pins 2 & 3 closed  | Pins 1 & 2 closed  |
   |---+--------------+--------------------+--------------------|
   |   |     64KB     | Pins 2 & 3 closed  | Pins 2 & 3 closed  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                         CABLE TYPE                         |
   |------------------------------------------------------------|
   |                Type                |         JP16          |
   |------------------------------------+-----------------------|
   |>> |    Unshielded twisted pair     |   Pins 2 & 3 Closed   |
   |---+--------------------------------+-----------------------|
   |   | AUI transceiver via DB-15 port |   Pins 1 & 2 Closed   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    LINK INTEGRITY TEST                     |
   |------------------------------------------------------------|
   |           Setting           |             JP31             |
   |-----------------------------+------------------------------|
   |>>        |     Enabled      |      Pins 1 & 2 Closed       |
   |----------+------------------+------------------------------|
   |          |     Disabled     |      Pins 2 & 3 Closed       |
   |------------------------------------------------------------|
   | Note:Link Integrity is only used with 10Base-T wiring.     |
   | When using an AUI transciever, the test should be          |
   | disabled.                                                  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                      BOOT ROM ADDRESS                      |
   |------------------------------------------------------------|
   |   Address   | ROM Size | SW1/1  | SW1/2  | SW1/3  | SW1/4  |
   |-------------+----------+--------+--------+--------+--------|
   |   | C0000h  |   16KB   |   On   |   On   |   On   |   On   |
   |---+---------+----------+--------+--------+--------+--------|
   |   | C0000h  |   32KB   |   On   |   On   |   On   |  Off   |
   |---+---------+----------+--------+--------+--------+--------|
   |   | C0000h  |   64KB   |   On   |   On   |  Off   |  Off   |
   |---+---------+----------+--------+--------+--------+--------|
   |   | C4000h  |   16KB   |   On   |   On   |   On   |  Off   |
   |---+---------+----------+--------+--------+--------+--------|
   |   | C8000h  |   16KB   |   On   |   On   |  Off   |   On   |
   |---+---------+----------+--------+--------+--------+--------|
   |   | C8000h  |   32KB   |   On   |   On   |  Off   |  Off   |
   |---+---------+----------+--------+--------+--------+--------|
   |   | CC000h  |   16KB   |   On   |   On   |  Off   |  Off   |
   |---+---------+----------+--------+--------+--------+--------|
   |   | D0000h  |   16KB   |   On   |  Off   |   On   |   On   |
   |---+---------+----------+--------+--------+--------+--------|
   |   | D0000h  |   32KB   |   On   |  Off   |   On   |  Off   |
   |---+---------+----------+--------+--------+--------+--------|
   |   | D0000h  |   64KB   |   On   |  Off   |  Off   |  Off   |
   |---+---------+----------+--------+--------+--------+--------|
   |   | D4000h  |   16KB   |   On   |  Off   |   On   |  Off   |
   |---+---------+----------+--------+--------+--------+--------|
   |>> | D8000h  |   16KB   |   On   |  Off   |  Off   |   On   |
   |---+---------+----------+--------+--------+--------+--------|
   |   | D8000h  |   32KB   |   On   |  Off   |  Off   |  Off   |
   |---+---------+----------+--------+--------+--------+--------|
   |   | DC000h  |   16KB   |   On   |  Off   |  Off   |  Off   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                      I/O BASE ADDRESS                      |
   |------------------------------------------------------------|
   |    Address     |  SW1/5   |  SW1/6   |  SW1/7   |  SW1/8   |
   |----------------+----------+----------+----------+----------|
   |   |  200-2IFh  |    On    |    On    |    On    |    On    |
   |---+------------+----------+----------+----------+----------|
   |   |  220-23Fh  |    On    |    On    |    On    |   Off    |
   |---+------------+----------+----------+----------+----------|
   |   |  240-25Fh  |    On    |    On    |   Off    |    On    |
   |---+------------+----------+----------+----------+----------|
   |>> |  280-29Fh  |    On    |   Off    |    On    |    On    |
   |---+------------+----------+----------+----------+----------|
   |   |  2A0-2BFh  |    On    |   Off    |    On    |   Off    |
   |---+------------+----------+----------+----------+----------|
   |   |  2C0-2DFh  |    On    |   Off    |   Off    |    On    |
   |---+------------+----------+----------+----------+----------|
   |   |  300-31Fh  |   Off    |    On    |    On    |    On    |
   |---+------------+----------+----------+----------+----------|
   |   |  320-33Fh  |   Off    |    On    |    On    |   Off    |
   |---+------------+----------+----------+----------+----------|
   |   |  340-35Fh  |   Off    |    On    |   Off    |    On    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DIAGNOSTIC LED(S)                      |
   |------------------------------------------------------------|
   | LED  | Color |   Status    |           Condition           |
   |------+-------+-------------+-------------------------------|
   | LED1 |  Red  | On/Blinking |    Data is being received     |
   |------+-------+-------------+-------------------------------|
   | LED1 |  Red  |     Off     |  Data is not being received   |
   |------+-------+-------------+-------------------------------|
   | LED2 | Green |     On      |     Twisted pair network      |
   |      |       |             |      connection is good       |
   |------+-------+-------------+-------------------------------|
   | LED2 | Green |     Off     |     Twisted pair network      |
   |      |       |             |     connection is broken      |
   +------------------------------------------------------------+