TEXT View Source
# EXOS
201
NIC Type Ethernet
Transfer Rate 10Mbps
Data Bus Multibus
Topology Linear bus
Wiring Type AUI transceiver via DB-15 on sub-connector
Boot ROM Available (in firmware)
IMG IMG 1
+------------------------------------------------------------+
| FACTORY CONFIGURED |
|------------------------------------------------------------|
| Jumper | Setting |
|-----------------------------+------------------------------|
| J2 | Closed |
|-----------------------------+------------------------------|
| J3 | Open |
|-----------------------------+------------------------------|
| J9 | Open |
|-----------------------------+------------------------------|
| J10 | Closed |
|-----------------------------+------------------------------|
| J12 | Open |
|-----------------------------+------------------------------|
| J61 | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| ONBARD BUFFER RAM |
|------------------------------------------------------------|
| Size | J4 | J7 |
|-------------------+--------------------+-------------------|
| 128KB | Open | Open |
|-------------------+--------------------+-------------------|
| 256KB | Open | Closed |
|-------------------+--------------------+-------------------|
| 512KB | Closed | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CARRIER SENSE CONFIGURATION |
|------------------------------------------------------------|
| Setting | J5 |
|----------------------------------------------+-------------|
| » | Carrier sense enabled | Open |
|--------+-------------------------------------+-------------|
| | Carrier sense disabled | Closed |
|------------------------------------------------------------|
| Note:Carrier sense should be disabled when using a |
| broad-band transceiver. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BOOT ROM |
|------------------------------------------------------------|
| Setting | J6 |
|-------------------------------+----------------------------|
| Enabled | Closed |
|-------------------------------+----------------------------|
| Disabled | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SIGNAL QUALITY CONFIGURATION |
|------------------------------------------------------------|
| Setting | J11 |
|-----------------------------------------------+------------|
| » | Signal quality check enabled | Closed |
|--------+--------------------------------------+------------|
| | Signal quality check disabled | Open |
|------------------------------------------------------------|
| Note:Signal quality checking should be disabled in any |
| Ethernet version 1 installation. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MULTIBUS I/O (SLAVE) ACCESS CONFIGURATION |
|------------------------------------------------------------|
| The EXOS 201 supports two simultaneous I/O ports, labeled |
| port A and port B. In addition, the 201 supports either |
| 8-bit or 16-bit memory addressing. When in 16-bit |
| addressing mode, the port A address is selectable via |
| jumper J52 & J53. Jumper J52A-G defines bits 1-7 of the |
| memory address respectively, and J53A-H defines bits 8-15 |
| respectively (when a jumper is closed, the bit that it |
| corresponds to is set to 1; when open, the bit is set to |
| 0.). For expample, if JP52A is closed, and JP52B-G & |
| JP53A-H are open, the memory address selected is 0001h. |
| When in 8-bit addressing mode, JP52A-G select bits 1-7 |
| respectively, and JP53 is inactive. Regardless of the |
| memory addressing mode, port B will always be located 1 |
| byte above port A's address (e.g. Port A = 0001h, Port B = |
| 0002h). Bit 0 is always set to 0 for port A, and 1 for |
| port B. (Open=0, closed=1) |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MULTIBUS MEMORY ADDRESSING METHOD |
|------------------------------------------------------------|
| Memory Address | J50 | J51 |
|--------------------------+----------------+----------------|
| 8-bit memory addressing | Open | Closed |
|--------------------------+----------------+----------------|
| 16-bit memory addressing | Closed | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 44-PIN ISBX CONNECTOR CONFIGURATION |
|------------------------------------------------------------|
| The iSBX connector (IEEE P969 specification), is included |
| for daughterboard options. There are two jumper-selectable |
| interrupt lines (J13 and J14) which should be left open |
| unless an optional daugherboard is installed. If a |
| daughterboard is installed, one jumper or the other must |
| be closed, but not both. JP13 closed selects IR0, JP14 |
| selects IR1. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| WATCHDOG TIMER CONFIGURATION |
|------------------------------------------------------------|
| Setting | J15 |
|-------------------------------+----------------------------|
| Watchdog timer enabled | Open |
|-------------------------------+----------------------------|
| Watchdog timer disabled | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MULTIBUS INTERRUPT ACCESS |
|------------------------------------------------------------|
|INT | J54A | J54B | J54C | J54D | J54E | J54F | J54G | J54H |
|----+------+------+------+------+------+------+------+------|
| 0 | Open | Open | Open | Open | Open | Open | Open |Closed|
|----+------+------+------+------+------+------+------+------|
| 1 | Open | Open | Open | Open | Open | Open |Closed| Open |
|----+------+------+------+------+------+------+------+------|
| 2 | Open | Open | Open | Open | Open |Closed| Open | Open |
|----+------+------+------+------+------+------+------+------|
| 3 | Open | Open | Open | Open |Closed| Open | Open | Open |
|----+------+------+------+------+------+------+------+------|
| 4 | Open | Open | Open |Closed| Open | Open | Open | Open |
|----+------+------+------+------+------+------+------+------|
| 5 | Open | Open |Closed| Open | Open | Open | Open | Open |
|----+------+------+------+------+------+------+------+------|
| 6 | Open |Closed| Open | Open | Open | Open | Open | Open |
|----+------+------+------+------+------+------+------+------|
| 7 |Closed| Open | Open | Open | Open | Open | Open | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER PROGRAMMABLE EPROM TYPE |
|------------------------------------------------------------|
| Type | J55 | J56 |
|-------------------+--------------------+-------------------|
| 27128 | Closed | Open |
|-------------------+--------------------+-------------------|
| 27256 | Open | Closed |
|-------------------+--------------------+-------------------|
| None | Open | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MULTIBUS PRIORITY RESOLUTION METHOD |
|------------------------------------------------------------|
| Resolution Scheme | J57 |
|-------------------------------------+----------------------|
| » | Enabled | Closed |
|---------+---------------------------+----------------------|
| | Disabled | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BUS ARBITRATION |
|------------------------------------------------------------|
| Setting | J58 | J59 |
|------------------------+-----------------+-----------------|
| » | Disabled | Open | Closed |
|---+--------------------+-----------------+-----------------|
| | Enabled | Closed | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CLOCK CONFIGURATION |
|------------------------------------------------------------|
| Setting | J60 |
|-------------------------------+----------------------------|
| /CCLK and /BCLK bus driven | Open |
|-------------------------------+----------------------------|
| /CCLK and /BCLK card driven | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIAGNOSTIC LED(S) |
|------------------------------------------------------------|
| LED | Status | Condition |
|-----+----------+-------------------------------------------|
| 1 | On | Performing power on self tests |
|-----+----------+-------------------------------------------|
| 1 | Flashing | Waiting for host or network |
| | | initialization |
|-----+----------+-------------------------------------------|
| 1 | Off | Card succesfully inserted into network |
|-----+----------+-------------------------------------------|
| 2 | On | Data is being transmitted |
|-----+----------+-------------------------------------------|
| 2 | Off | Data is not being transmitted |
|-----+----------+-------------------------------------------|
| 3 | On | Attempted access to non-existant memory |
| | | location on multibus |
|-----+----------+-------------------------------------------|
| 3 | Pulsing | Multibus cycle in progress |
|-----+----------+-------------------------------------------|
| 3 | Off | No multibus cycle in progress |
+------------------------------------------------------------+