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# INTERLOGIC INDUSTRIES
ASC486 VER. C
Processor 80486SX/CX486S/80487SX/CX486S2/80486DX/80486DX2/Pentium
Overdrive
Processor 25/33/40/50(internal)/50/66(internal)MHz
Speed
Chip Set ALI
Max. 128MB
Onboard
DRAM
Cache 32/64/128/256/512/1024KB
BIOS AMI
Dimensions 312mm x 122mm
I/O Floppy drive interface, IDE interface, parallel port,
Options serial ports (2)
NPU None
Options
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|----------------------+----------+---------------+----------|
| Keyboard connector | CN1 | Serial port 1 | CN9 |
|----------------------+----------+---------------+----------|
| Power LED & keylock | CN2 | Serial port 2 | CN10 |
|----------------------+----------+---------------+----------|
| Floppy drive | CN3 | Speaker | JP1 |
| interface | | | |
|----------------------+----------+---------------+----------|
| IDE interface LED | CN4 | Reset switch | JP2 |
|----------------------+----------+---------------+----------|
| Parallel port | CN5 | IDE interface | JP3 |
|----------------------+----------+---------------+----------|
| PC/104 Module | CN6 | Turbo switch | JP4 |
| connector | | | |
|----------------------+----------+---------------+----------|
| Keyboard port | CN7 | Turbo LED | JP5 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|-------------------------------------+---------+------------|
| » | Battery type select external | JP11 | pins 2 & 3 |
| | | | closed |
|---+---------------------------------+---------+------------|
| | Battery type select internal | JP11 | pins 1 & 2 |
| | | | closed |
|---+---------------------------------+---------+------------|
| » | Clock system select double | JP15 & | pins 1 & 2 |
| | frequency | JP46 | closed |
|---+---------------------------------+---------+------------|
| | Clock system select single | JP15 & | pins 2 & 3 |
| | frequency | JP46 | closed |
|---+---------------------------------+---------+------------|
| » | CMOS memory normal operation | JP28 | Open |
|---+---------------------------------+---------+------------|
| | CMOS memory clear | JP28 | Closed |
|---+---------------------------------+---------+------------|
| » | Parallel port interrupt select | JP31 | pins 1 & 2 |
| | IRQ7 | | closed |
|---+---------------------------------+---------+------------|
| | Parallel port interrupt select | JP31 | pins 2 & 3 |
| | IRQ5 | | closed |
|---+---------------------------------+---------+------------|
| » | IDE interface enabled | JP32 | pins 1 & 2 |
| | | | closed |
|---+---------------------------------+---------+------------|
| | IDE interface disabled | JP32 | pins 2 & 3 |
| | | | closed |
|---+---------------------------------+---------+------------|
| » | Parallel port address select | JP33 | pins 1 & 2 |
| | 378h-37Fh | | closed |
|---+---------------------------------+---------+------------|
| | Parallel port address select | JP33 | pins 2 & 3 |
| | 278h-27Fh | | closed |
|---+---------------------------------+---------+------------|
| » | Floppy drive interface enabled | JP34 | pins 1 & 2 |
| | | | closed |
|---+---------------------------------+---------+------------|
| | Floppy drive interface disabled | JP34 | pins 2 & 3 |
| | | | closed |
|---+---------------------------------+---------+------------|
| » | Monitor type select color | JP38 | Closed |
|---+---------------------------------+---------+------------|
| | Monitor type select monochrome | JP38 | Open |
|---+---------------------------------+---------+------------|
| » | Parallel port unidirectional | JP39 | Closed |
|---+---------------------------------+---------+------------|
| | Parallel port bidirectional | JP39 | Open |
|---+---------------------------------+---------+------------|
| » | XT IDE interface disabled | JP40 | pins 2 & 3 |
| | | | closed |
|---+---------------------------------+---------+------------|
| | XT IDE interface enabled | JP40 | pins 1 & 2 |
| | | | closed |
|---+---------------------------------+---------+------------|
| » | Parallel port enabled | JP43 | pins 1 & 2 |
| | | | closed |
|---+---------------------------------+---------+------------|
| | Parallel port disabled | JP43 | pins 2 & 3 |
| | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT CONFIGURATION |
|------------------------------------------------------------|
| Port 1 (CN9) | Port 2 | JP41 | JP42 | JP44 | JP45 |
| | (CN10) | | | | |
|--------------+-------------+-------+-------+-------+-------|
| 3F8h-3FFh | 2F8h-2FFh | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 |
|--------------+-------------+-------+-------+-------+-------|
| 3F8h-3FFh | Disabled | 1 & 2 | 1 & 2 | N/A | 2 & 3 |
|--------------+-------------+-------+-------+-------+-------|
| Disabled | 2F8h-2FFh | 2 & 3 | N/A | 1 & 2 | 1 & 2 |
|--------------+-------------+-------+-------+-------+-------|
| 3E8h-3EFh | 2E8h-2EFh | 1 & 2 | 2 & 3 | 2 & 3 | 1 & 2 |
|--------------+-------------+-------+-------+-------+-------|
| 3E8h-3EFh | Disabled | 1 & 2 | 2 & 3 | N/A | 2 & 3 |
|--------------+-------------+-------+-------+-------+-------|
| Disabled | 2E8h-2EFh | 2 & 3 | N/A | 2 & 3 | 1 & 2 |
|--------------+-------------+-------+-------+-------+-------|
| Disabled | Disabled | 2 & 3 | N/A | N/A | 2 & 3 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT INTERRUPT SELECT |
|------------------------------------------------------------|
| Port 1 (CN9) | Port 2 (CN10) | JP29 | JP30 |
|--------------+---------------+----------------+------------|
| IRQ4 | IRQ3 | pins 1 & 2 | pins 2 & 3 |
| | | closed | closed |
|--------------+---------------+----------------+------------|
| IRQ3 | IRQ4 | pins 2 & 3 | pins 1 & 2 |
| | | closed | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|------------------+--------------------+--------------------|
| 1MB | (4) 256K x 9 | NONE |
|------------------+--------------------+--------------------|
| 2MB | (4) 256K x 9 | (4) 256K x 9 |
|------------------+--------------------+--------------------|
| 3MB | (4) 256K x 9 | (4) 256K x 9 |
|------------------+--------------------+--------------------|
| 4MB | (4) 1M x 9 | NONE |
|------------------+--------------------+--------------------|
| 8MB | (4) 1M x 9 | (4) 1M x 9 |
|------------------+--------------------+--------------------|
| 16MB | (4) 4M x 9 | NONE |
|------------------+--------------------+--------------------|
| 20MB | (4) 1M x 9 | (4) 4M x 9 |
|------------------+--------------------+--------------------|
| 32MB | (4) 4M x 9 | (4) 4M x 9 |
|------------------+--------------------+--------------------|
| 64MB | (4) 16M x 9 | NONE |
|------------------+--------------------+--------------------|
| 128MB | (4) 16M x 9 | (4) 16M x 9 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | TAG |
|------------+---------------+---------------+---------------|
| 32KB | (4) 8K x 8 | NONE | (1) 16K x 4 |
|------------+---------------+---------------+---------------|
| 64KB | (4) 8K x 8 | (4) 8K x 8 | (1) 16K x 4 |
|------------+---------------+---------------+---------------|
| 128KB | (4) 32K x 8 | NONE | (1) 32K x 8 |
|------------+---------------+---------------+---------------|
| 256KB | (4) 32K x 8 | (4) 32K x 8 | (1) 32K x 8 |
|------------+---------------+---------------+---------------|
| 512KB | (4) 128K x 8 | NONE | (1) 64K x 4 |
|------------+---------------+---------------+---------------|
| 1MB | (4) 128K x 8 | (4) 128K x 8 | (1) 64K x 4 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP22 |
|-----------+------------------------------------------------|
| 32KB | Open |
|-----------+------------------------------------------------|
| 64KB | pins 9 & 10 closed |
|-----------+------------------------------------------------|
| 128KB | pins 7 & 8, 9 & 10 closed |
|-----------+------------------------------------------------|
| 256KB | pins 5 & 6, 7 & 8, 9 & 10 closed |
|-----------+------------------------------------------------|
| 512KB | pins 3 & 4, 5 & 6, 7 & 8, 9 & 10 closed |
|-----------+------------------------------------------------|
| 1MB | pins 1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | JP24 | JP25 | JP26 | JP27 |
|-------+-------------+------------+------------+------------|
| 32KB | Open | Open | pins 2 & 3 | pins 1 & 2 |
| | | | closed | closed |
|-------+-------------+------------+------------+------------|
| 64KB | Open | Open | pins 1 & 2 | pins 1 & 2 |
| | | | closed | closed |
|-------+-------------+------------+------------+------------|
| 128KB | Open | pins 2 & 3 | pins 1 & 2 | pins 2 & 3 |
| | | closed | closed | closed |
|-------+-------------+------------+------------+------------|
| 256KB | Open | pins 1 & 2 | pins 1 & 2 | pins 2 & 3 |
| | | closed | closed | closed |
|-------+-------------+------------+------------+------------|
| 512KB | pins 1 & 2 | pins 1 & 2 | pins 1 & 2 | pins 2 & 3 |
| | closed | closed | closed | closed |
|-------+-------------+------------+------------+------------|
| 1MB | pins 1 & 2 | pins 1 & 2 | pins 1 & 2 | pins 2 & 3 |
| | closed | closed | closed | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | JP6 | JP7 | JP8 | JP12 | JP13 | JP14 |
|-------------+-------+-------+------+-------+-------+-------|
| 80486SX | 1 & 2 | 1 & 2 | 1 & | 1 & 2 | 1 & 2 | 1 & 2 |
| | | | 2 | | | |
|-------------+-------+-------+------+-------+-------+-------|
| 80487SX | 1 & 2 | 1 & 2 | 2 & | 1 & 2 | 1 & 2 | 1 & 2 |
| | | | 3 | | | |
|-------------+-------+-------+------+-------+-------+-------|
| CX486S | 1 & 2 | 1 & 2 | 1 & | 1 & 2 | 2 & 3 | 2 & 3 |
| | | | 2 | | | |
|-------------+-------+-------+------+-------+-------+-------|
| CX486S2 | 2 & 3 | 1 & 2 | 1 & | 1 & 2 | 1 & 2 | 2 & 3 |
| | | | 2 | | | |
|-------------+-------+-------+------+-------+-------+-------|
| 80486DX/DX2 | 1 & 2 | 1 & 2 | 2 & | 1 & 2 | 1 & 2 | 1 & 2 |
| | | | 3 | | | |
|-------------+-------+-------+------+-------+-------+-------|
| Overdrive | 2 & 3 | 2 & 3 | 2 & | 2 & 3 | 1 & 2 | 1 & 2 |
| | | | 3 | | | |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Type | JP16 | JP17 | JP18 | JP19 | JP20 | JP21 |
|------------+-------+--------+-------+-------+-------+------|
| 80486SX | Open | Open |Closed | Open | Open | Open |
|------------+-------+--------+-------+-------+-------+------|
| 80487SX | 1 & 2 | Open |Closed | Open | Open |Closed|
|------------+-------+--------+-------+-------+-------+------|
| CX486S | 3 & 4 | Open | Open |Closed |Closed | Open |
|------------+-------+--------+-------+-------+-------+------|
| CX486S2 | 3 & 4 | Closed | Open |Closed |Closed | Open |
|------------+-------+--------+-------+-------+-------+------|
|80486DX/DX2 | 2 & 3 | Open |Closed | Open | Open |Closed|
|------------+-------+--------+-------+-------+-------+------|
| Overdrive | 1 & 2 | Closed |Closed | Open | Open |Closed|
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION (EXTERNAL) |
|------------------------------------------------------------|
| Speed | JP23/1 & 2 | JP23/3 & | JP23/5 & | JP23/7 & |
| | | 4 | 6 | 8 |
|-----------+------------+-----------+-----------+-----------|
| 25MHz | Open | Open | Open | Closed |
|-----------+------------+-----------+-----------+-----------|
| 33MHz | Closed | Open | Open | Open |
|-----------+------------+-----------+-----------+-----------|
| 40iMHz | Closed | Closed | Closed | Open |
|-----------+------------+-----------+-----------+-----------|
| 40MHz | Closed | Closed | Open | Open |
|-----------+------------+-----------+-----------+-----------|
| 50iMHz | Open | Closed | Open | Open |
|-----------+------------+-----------+-----------+-----------|
| 50MHz | Open | Open | Closed | Closed |
|-----------+------------+-----------+-----------+-----------|
| 66iMHz | Closed | Open | Closed | Open |
|-----------+------------+-----------+-----------+-----------|
| Overdrive | Open | Closed | Closed | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION (INTERNAL) |
|------------------------------------------------------------|
| Speed | JP9 | JP10 |
|------------------+--------------------+--------------------|
| 40iMHz | pins 1 & 2 closed | pins 2 & 3 closed |
|------------------+--------------------+--------------------|
| 50iMHz | pins 2 & 3 closed | pins 2 & 3 closed |
|------------------+--------------------+--------------------|
| 66iMHz | pins 2 & 3 closed | pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| WATCH DOG TIMER SETTING |
|------------------------------------------------------------|
| Setting | JP35 |
|---------------------------------------+--------------------|
| Reset when WDT time out | pins 1 & 2 closed |
|---------------------------------------+--------------------|
| Activate NMI to CPU when WDT time out | pins 2 & 3 closed |
|---------------------------------------+--------------------|
| WDT disabled | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| WATCH DOG TIME OUT PERIOD |
|------------------------------------------------------------|
| Time out period | JP36 | JP37 |
|--------------------+--------------------+------------------|
| 500ms | pins 1 & 2 closed | Closed |
|--------------------+--------------------+------------------|
| 1 second | pins 1 & 2 closed | Open |
|--------------------+--------------------+------------------|
| 2.5 seconds | pins 2 & 3 closed | Closed |
|--------------------+--------------------+------------------|
| 5 seconds | pins 2 & 3 closed | Open |
+------------------------------------------------------------+