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# TEXAS INSTRUMENTS
SYSTEM 1000
Processor 80286
Processor Speed 12MHz
Chip Set AMD
Max. onboard 640KB (location unknown) 12MB external
DRAM
Cache None
BIOS AMD
Dimensions 330mm x 218mm
I/O Options External memory card, parallel port, serial
port
NPU Options 80287
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|---------------+----------+----------------------+----------|
| Serial port | J8 | External memory card | J3 |
| | | connector | |
|---------------+----------+----------------------+----------|
| Parallel port | J9 | External memory card | J4 |
| | | connector | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper/Switch | Position |
|---------------------------------+---------------+----------|
| » | BIOS size select standard | E1 & E2 | Open |
| | size | | |
|---+-----------------------------+---------------+----------|
| | BIOS size select larger | E1 & E2 | Closed |
| | size | | |
|---+-----------------------------+---------------+----------|
| » | Speaker select internal | E3, E4, & E5 | E4 & E5 |
| | | | closed |
|---+-----------------------------+---------------+----------|
| | Speaker select external | E3, E4, & E5 | Open |
|---+-----------------------------+---------------+----------|
| » | Factory configured - do not | E6 & E7 | N/A |
| | alter | | |
|---+-----------------------------+---------------+----------|
| » | BUS cycle wait state select | SW1/switch 1 | On |
| | normal | | |
|---+-----------------------------+---------------+----------|
| | BUS cycle wait state select | SW1/switch 1 | Off |
| | shortened | | |
|---+-----------------------------+---------------+----------|
| » | NPU disabled | SW1/switch 2 | Off |
|---+-----------------------------+---------------+----------|
| | NPU enabled | SW1/switch 2 | On |
|---+-----------------------------+---------------+----------|
| » | Factory configured - do not | SW1/switch 5 | Off |
| | alter | | |
|---+-----------------------------+---------------+----------|
| » | NPU speed select 4MHz | SW1/switch 6 | Off |
|---+-----------------------------+---------------+----------|
| | NPU speed select 8MHz | SW1/switch 6 | On |
|---+-----------------------------+---------------+----------|
| » | Factory configured - do not | SW1/switch 7 | Off |
| | alter | | |
|---+-----------------------------+---------------+----------|
| » | Monitor type select color | SW2/switch 7 | On |
|---+-----------------------------+---------------+----------|
| | Monitor type select | SW2/switch 7 | Off |
| | monochrome | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BASE MEMORY CONFIGURATION |
|------------------------------------------------------------|
| Size | SW1/3 | SW1/4 |
|--------------------+-------------------+-------------------|
| 256KB | Off | Off |
|--------------------+-------------------+-------------------|
| 512KB | Off | On |
|--------------------+-------------------+-------------------|
| 640KB | On | On |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PARALLEL PORT CONFIGURATION |
|------------------------------------------------------------|
| Mode | LPT | IRQ | SW2/1 | SW2/2 | SW2/3 |
|----------+---------+---------+---------+---------+---------|
| Enabled | LPT1 | IRQ7 | Off | Off | Off |
|----------+---------+---------+---------+---------+---------|
| Disabled | LPT1 | IRQ5 | On | Off | On |
|----------+---------+---------+---------+---------+---------|
| Enabled | LPT1 | IRQ5 | Off | Off | On |
|----------+---------+---------+---------+---------+---------|
| Disabled | LPT1 | IRQ7 | On | Off | Off |
|----------+---------+---------+---------+---------+---------|
| Enabled | LPT2 | IRQ7 | Off | On | Off |
|----------+---------+---------+---------+---------+---------|
| Disabled | LPT2 | IRQ5 | On | On | On |
|----------+---------+---------+---------+---------+---------|
| Enabled | LPT2 | IRQ5 | Off | On | On |
|----------+---------+---------+---------+---------+---------|
| Disabled | LPT2 | IRQ7 | On | On | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT CONFIGURATION |
|------------------------------------------------------------|
| Mode | COM | IRQ | SW2/4 | SW2/5 | SW2/6 |
|----------+---------+---------+---------+---------+---------|
| Enabled | COM1 | IRQ7 | Off | Off | Off |
|----------+---------+---------+---------+---------+---------|
| Disabled | COM1 | IRQ5 | On | Off | On |
|----------+---------+---------+---------+---------+---------|
| Enabled | COM1 | IRQ5 | Off | Off | On |
|----------+---------+---------+---------+---------+---------|
| Disabled | COM1 | IRQ7 | On | Off | Off |
|----------+---------+---------+---------+---------+---------|
| Enabled | COM2 | IRQ7 | Off | On | Off |
|----------+---------+---------+---------+---------+---------|
| Disabled | COM2 | IRQ5 | On | On | On |
|----------+---------+---------+---------+---------+---------|
| Enabled | COM2 | IRQ5 | Off | On | On |
|----------+---------+---------+---------+---------+---------|
| Disabled | COM2 | IRQ7 | On | On | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| LED SELF TEST CONFIGURATION |
|------------------------------------------------------------|
| Green | Yellow | Red | Item Failed |
|----------+----------+----------+---------------------------|
| On | On | On | CPU |
|----------+----------+----------+---------------------------|
| On | On | Off | 8142 test keyboard |
|----------+----------+----------+---------------------------|
| On | Off | On | 8254 timer 1 test |
|----------+----------+----------+---------------------------|
| On | Off | Off | ROM CRC check |
|----------+----------+----------+---------------------------|
| Off | On | On | CMOS RAM test |
|----------+----------+----------+---------------------------|
| Off | On | Off | Memory refresh test |
|----------+----------+----------+---------------------------|
| Off | Off | On | 0 - 256KB RAM test |
|----------+----------+----------+---------------------------|
| Off | Off | Off | Turbo mode test |
|----------+----------+----------+---------------------------|
| Off | Off | Off | Turbo parity error |
|----------+----------+----------+---------------------------|
| Off | Off | On | Nonturbo parity error |
|----------+----------+----------+---------------------------|
| On | On | On | 8259 test |
|----------+----------+----------+---------------------------|
| On | On | On | 8254 timer interrupt |
|----------+----------+----------+---------------------------|
| On | On | Off | Protected mode test |
|----------+----------+----------+---------------------------|
| On | Off | On | 8254 timer 2 test |
|----------+----------+----------+---------------------------|
| On | Off | Off | DMA test |
+------------------------------------------------------------+
IMG IMG 2
+------------------------------------------------------------+
| MEMORY CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 | Bank 4 | Bank |
| | | | | | | 5 |
|-------+---------+--------+--------+--------+--------+------|
| 512KB | (2) | NONE | NONE | NONE | NONE | NONE |
| | 256K x | | | | | |
| | 9 | | | | | |
|-------+---------+--------+--------+--------+--------+------|
| 1MB | (2) | (2) | NONE | NONE | NONE | NONE |
| | 256K x | 256K x | | | | |
| | 9 | 9 | | | | |
|-------+---------+--------+--------+--------+--------+------|
| 1.5MB | (2) | (2) | (2) | NONE | NONE | NONE |
| | 256K x | 256K x | 256K x | | | |
| | 9 | 9 | 9 | | | |
|-------+---------+--------+--------+--------+--------+------|
| 2MB | (2) | (2) | (2) | (2) | NONE | NONE |
| | 256K x | 256K x | 256K x | 256K x | | |
| | 9 | 9 | 9 | 9 | | |
|-------+---------+--------+--------+--------+--------+------|
| 2MB | (2) 1M | NONE | NONE | NONE | NONE | NONE |
| | x 9 | | | | | |
|-------+---------+--------+--------+--------+--------+------|
| 2.5MB | (2) | (2) | (2) | (2) | (2) | NONE |
| | 256K x | 256K x | 256K x | 256K x | 256K x | |
| | 9 | 9 | 9 | 9 | 9 | |
|-------+---------+--------+--------+--------+--------+------|
| 3MB | (2) | (2) | (2) | (2) | (2) | (2) |
| | 256K x | 256K x | 256K x | 256K x | 256K x | 256K |
| | 9 | 9 | 9 | 9 | 9 | x 9 |
|-------+---------+--------+--------+--------+--------+------|
| 4MB | (2) 1M | (2) 1M | NONE | NONE | NONE | NONE |
| | x 9 | x 9 | | | | |
|-------+---------+--------+--------+--------+--------+------|
| 6MB | (2) 1M | (2) 1M | (2) 1M | NONE | NONE | NONE |
| | x 9 | x 9 | x 9 | | | |
|-------+---------+--------+--------+--------+--------+------|
| 8MB | (2) 1M | (2) 1M | (2) 1M | (2) 1M | NONE | NONE |
| | x 9 | x 9 | x 9 | x 9 | | |
|-------+---------+--------+--------+--------+--------+------|
| 10MB | (2) 1M | (2) 1M | (2) 1M | (2) 1M | (2) 1M | NONE |
| | x 9 | x 9 | x 9 | x 9 | x 9 | |
|-------+---------+--------+--------+--------+--------+------|
| 640KB | (2) 1M | (2) 1M | (2) 1M | (2) 1M | (2) 1M | (2) |
| | x 9 | x 9 | x 9 | x 9 | x 9 | 1M x |
| | | | | | | 9 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MEMORY JUMPER CONFIGURATION |
|------------------------------------------------------------|
| SIMMs | E1 & E2 | E3 & E4 |
|--------------------+-------------------+-------------------|
| 256K x 9 | Closed | Closed |
|--------------------+-------------------+-------------------|
| 1M x 9 | Open | Open |
+------------------------------------------------------------+