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# GIGA-BYTE TECHNOLOGY, INC.
GA-500
NIC Type: Ethernet
Transfer Rate: 10Mbps
Data Bus: 32-bit VESA local bus
Topology: Linear Bus
Star
Wiring Type Unshielded twisted pair
RG58A/U 50ohm coaxial
AUI transceiver via DB-15 port
Boot ROM Available
IMG IMG 1
+------------------------------------------------------------+
| I/O ADDRESS |
|------------------------------------------------------------|
| Address | J1 | J2 | JP3 | JP5 |
|------------+-----------+-----------+-----------+-----------|
| 300h | off | off | on | on |
|------------+-----------+-----------+-----------+-----------|
| 320h | on | off | on | off |
|------------+-----------+-----------+-----------+-----------|
| 340h | off | on | off | on |
|------------+-----------+-----------+-----------+-----------|
| 360h | on | on | off | off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BOOT ROM ADDRESS |
|------------------------------------------------------------|
| Address | J3 | J4 | J5 |
|------------+---------------+---------------+---------------|
| C8000h | off | off | off |
|------------+---------------+---------------+---------------|
| CC000h | on | off | off |
|------------+---------------+---------------+---------------|
| D0000h | off | on | off |
|------------+---------------+---------------+---------------|
| D4000h | on | on | off |
|------------+---------------+---------------+---------------|
| D8000h | off | off | on |
|------------+---------------+---------------+---------------|
| DC000h | on | off | on |
|------------+---------------+---------------+---------------|
| C4000h | off | on | on |
|------------+---------------+---------------+---------------|
| E0000h | on | on | on |
+------------------------------------------------------------+
+------------------------------------------------------------+
| INTERRUPT SELECT - JP6 |
|------------------------------------------------------------|
| IRQ | A | B | C | D | E | F | G | H |
|-------+------+------+------+------+------+-----+-----+-----|
| IRQ2 | on | off | off | off | off | off | off | off |
|-------+------+------+------+------+------+-----+-----+-----|
| IRQ3 | off | on | off | off | off | off | off | off |
|-------+------+------+------+------+------+-----+-----+-----|
| IRQ4 | off | off | on | off | off | off | off | off |
|-------+------+------+------+------+------+-----+-----+-----|
| IRQ5 | off | off | off | on | off | off | off | off |
|-------+------+------+------+------+------+-----+-----+-----|
| IRQ10 | off | off | off | off | on | off | off | off |
|-------+------+------+------+------+------+-----+-----+-----|
| IRQ11 | off | off | off | off | off | on | off | off |
|-------+------+------+------+------+------+-----+-----+-----|
| IRQ12 | off | off | off | off | off | off | on | off |
|-------+------+------+------+------+------+-----+-----+-----|
| IRQ15 | off | off | off | off | off | off | off | on |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BOOT ROM |
|------------------------------------------------------------|
| Setting | JP4 |
|-------------------------------+----------------------------|
| Enabled | closed |
|-------------------------------+----------------------------|
| Disabled | open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIAGNOSTIC LEDS |
|------------------------------------------------------------|
| LED | Color | Status | Condition |
|------+---------+----------+--------------------------------|
| D1 | unknown | on | Network connected successfully |
|------+---------+----------+--------------------------------|
| D1 | unknown | off | Network is not connected |
|------+---------+----------+--------------------------------|
| D2 | unknown | blinking | Collision detected |
|------+---------+----------+--------------------------------|
| D3 | unknown | blinking | Data is being received |
|------+---------+----------+--------------------------------|
| D4 | unknown | blinking | Data is being transmitted |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MISCELLANEOUS TECHNICAL NOTES |
|------------------------------------------------------------|
| Do not alter jumper J6, it is factory configured in the |
| closed position. |
+------------------------------------------------------------+