TEXT View Source
# UNIDENTIFIED
MICRO 286-12/MICRO 286-16
Processor 80286
Processor Speed 12/16MHz
Chip Set G-2
Max. Onboard DRAM 4MB
Cache None
BIOS AMI
Dimensions 330.2mm x 218.4mm
I/O Options None
NPU Options 80287
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|---------------------+-----------+--------------+-----------|
| Power LED & keylock | P1 | Turbo LED | P4 |
|---------------------+-----------+--------------+-----------|
| Speaker | P2 | Turbo switch | P5 |
|---------------------+-----------+--------------+-----------|
| Reset switch | P3 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper/Switch | Position |
|-------------------------------+---------------+------------|
| » | CPU speed at boot select | S1/switch 1 | open |
| | fast | | |
|---+---------------------------+---------------+------------|
| | CPU speed at boot select | S1/switch 1 | closed |
| | slow | | |
|---+---------------------------+---------------+------------|
| » | Bus speed select 6/8MHz | S1/switch 2 | open |
|---+---------------------------+---------------+------------|
| | Bus speed select 12/16MHz | S1/switch 2 | closed |
|---+---------------------------+---------------+------------|
| | DRAM speed select 0 wait | W3 | closed |
| | states | | |
|---+---------------------------+---------------+------------|
| | DRAM speed select 1 wait | W3 | open |
| | state | | |
|---+---------------------------+---------------+------------|
| » | BIOS type select 27256 | W4 | pins 2 & 3 |
| | | | closed |
|---+---------------------------+---------------+------------|
| | BIOS type select 27128 | W4 | pins 1 & 2 |
| | | | closed |
|---+---------------------------+---------------+------------|
| » | NPU mode select | W5 | 286CLK |
| | synchronous with CPU | | |
|---+---------------------------+---------------+------------|
| | NPU mode select | W5 | iOSC |
| | synchronous with | | |
| | Oscillator installed at | | |
| | O1 | | |
|---+---------------------------+---------------+------------|
| » | Monitor type select color | W6 | closed |
|---+---------------------------+---------------+------------|
| | Monitor type select | W6 | open |
| | monochrome | | |
|------------------------------------------------------------|
| Note:The max. and min. speeds of the bus are equal to the |
| max. and min. speeds of the CPU. |
| |
| e.g. A 16MHz system would have bus speeds of 8MHz (min.) |
| and 16MHz (max). |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | W7 | S1/Switch | S1/Switch |
| | | | | 3 | 4 |
|-------+---------+---------+--------+-----------+-----------|
| 512KB | (18) | NONE | pins 2 | closed | closed |
| | 41256 | | & 3 | | |
| | | | closed | | |
|-------+---------+---------+--------+-----------+-----------|
| 640KB | (18) | (18) | pins 2 | closed | open |
| | 41256 | 41256 | & 3 | | |
| | | | closed | | |
|-------+---------+---------+--------+-----------+-----------|
| 1MB | (18) | (18) | pins 2 | open | open |
| | 41256 | 41256 | & 3 | | |
| | | | closed | | |
|-------+---------+---------+--------+-----------+-----------|
| 2MB | (18) | NONE | pins 1 | open | closed |
| | 411000 | | & 2 | | |
| | | | closed | | |
|-------+---------+---------+--------+-----------+-----------|
| 4MB | (18) | (18) | pins 1 | open | open |
| | 411000 | 411000 | & 2 | | |
| | | | closed | | |
+------------------------------------------------------------+