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# UNIDENTIFIED
HT101A 286
Processor 80286
Processor Speed 10/12MHz
Chip Set Unknown
Max. Onboard DRAM 4MB
Cache None
BIOS AMI
Dimensions 220mm x 220mm
I/O Options None
NPU Options 80287
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|---------------------+----------+----------------+----------|
| Turbo switch | J4 | Speaker | J17 |
|---------------------+----------+----------------+----------|
| External battery | J14 | Turbo LED | J19 |
|---------------------+----------+----------------+----------|
| Power LED & keylock | J16 | Reset switch | J20 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper/Switch | Position |
|-------------------------------+---------------+------------|
| » | NPU mode select | JP2 | pins 2 & 3 |
| | synchronous with CPU | | closed |
|---+---------------------------+---------------+------------|
| | NPU mode select | JP2 | pins 1 & 2 |
| | asynchronous with CPU | | closed |
|---+---------------------------+---------------+------------|
| » | Parity check enabled | JP3 | Closed |
|---+---------------------------+---------------+------------|
| | Parity check disabled | JP3 | Open |
|---+---------------------------+---------------+------------|
| » | CPU speed select | JP4 | pins 1 & 2 |
| | [CTRL][ALT][+] = fast, | | closed |
| | [CTRL][ALT][-] = slow | | |
|---+---------------------------+---------------+------------|
| | CPU speed select fast | JP4 | pins 2 & 3 |
| | | | closed |
|---+---------------------------+---------------+------------|
| » | DRAM select 0 wait states | J18 | pins 2 & 3 |
| | | | closed |
|---+---------------------------+---------------+------------|
| | DRAM select 1 wait state | J18 | Open |
|---+---------------------------+---------------+------------|
| | DRAM wait state select | J18 | pins 1 & 2 |
DIR Link 0
| | [CTRL][ALT] = 0 | | closed |
IMG IMG 1
| | [CTRL][ALT] = 1 | | |
|---+---------------------------+---------------+------------|
| » | Monitor type select color | SW1/1 | On |
|---+---------------------------+---------------+------------|
| | Monitor type select | SW1/1 | Off |
| | monochrome | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | P-0 | Bank 1 | P-1 | Bank 2 | Bank |
| | | | | | | 3 |
|-------+--------+--------+--------+--------+--------+-------|
| 512KB | (4) | (2) | NONE | NONE | NONE | NONE |
| | 44256 | 41256 | | | | |
|-------+--------+--------+--------+--------+--------+-------|
| 640KB | (4) | (2) | (4) | (2) | NONE | NONE |
| | 44256 | 41256 | 4464 | 4164 | | |
|-------+--------+--------+--------+--------+--------+-------|
| 1MB | (4) | (2) | (4) | (2) | NONE | NONE |
| | 44256 | 41256 | 44256 | 41256 | | |
|-------+--------+--------+--------+--------+--------+-------|
| 2MB | NONE | NONE | NONE | NONE | (2) 1M | NONE |
| | | | | | x 9 | |
|-------+--------+--------+--------+--------+--------+-------|
| 4MB | NONE | NONE | NONE | NONE | (2) 1M | (2) |
| | | | | | x 9 | 1M x |
| | | | | | | 9 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM SWITCH CONFIGURATION |
|------------------------------------------------------------|
| Size | SW1/2 | SW1/3 | SW1/4 |
|---------------+--------------+--------------+--------------|
| 512KB | On | On | Off |
|---------------+--------------+--------------+--------------|
| 640KB | On | Off | On |
|---------------+--------------+--------------+--------------|
| 1MB | On | Off | Off |
|---------------+--------------+--------------+--------------|
| 2MB | Off | Off | On |
|---------------+--------------+--------------+--------------|
| 4MB | Off | Off | Off |
+------------------------------------------------------------+