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# TRENTON TECHNOLOGY, INC.
TR-486DX
Processor 80486SX/80486DX/80486DX2/80486DX4/P24D/P24T
Processor 33/50(internal)/50/66(internal)100(internal)MHz
Speed
Chip Set Unidentified
Video Chip Set None
Maximum 128MB
Onboard Memory
Maximum Video None
Memory
Cache 256KB
BIOS AMI
Dimensions Unidentified
I/O Options Floppy drive interface, IDE interface, parallel
port, serial ports (2)
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|---------------------+----------+----------------+----------|
| Power LED & keylock | P2 | Serial port 2 | P7 |
|---------------------+----------+----------------+----------|
| Floppy drive | P3 | Parallel port | P8 |
| interface | | | |
|---------------------+----------+----------------+----------|
| Auxiliary keyboard | P4 | CPU fan power | P9 |
| connector | | | |
|---------------------+----------+----------------+----------|
| Speaker | P5 | Reset switch | P10 |
|---------------------+----------+----------------+----------|
| Combo I/O connector | P5A | IDE interface | P11 |
|---------------------+----------+----------------+----------|
| Serial port 1 | P6 | IDE interface | P12 |
| | | LED | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|---------------------------------------+-------+------------|
| » | Monitor type select color | JU80 | Pins 1 & 2 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| | Monitor type select monochrome | JU80 | Pins 2 & 3 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| » | Password normal operation | JU81 | Open |
|---+-----------------------------------+-------+------------|
| | Password clear | JU81 | Closed |
|---+-----------------------------------+-------+------------|
| » | Watchdog timer disabled | JU82 | Pins 1 & 2 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| | Watchdog timer enabled | JU82 | Pins 2 & 3 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| » | CMOS memory normal operation | JU83 | Open |
|---+-----------------------------------+-------+------------|
| | CMOS memory clear | JU83 | Closed |
|---+-----------------------------------+-------+------------|
| » | Speaker data signal to pin 8 on | JU84 | Closed |
| | P5A enabled | | |
|---+-----------------------------------+-------+------------|
| | Speaker data signal to pin 8 on | JU84 | Open |
| | P5A disabled | | |
|---+-----------------------------------+-------+------------|
| » | Reset data signal to pin 1 on P5A | JU85 | Closed |
| | enabled | | |
|---+-----------------------------------+-------+------------|
| | Reset data signal to pin 1 on P5A | JU85 | Open |
| | disabled | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SIMM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|------+-------------+-------------+------------+------------|
| 4MB | (1) 1M x 36 | None | None | None |
|------+-------------+-------------+------------+------------|
| 8MB | (1) 2M x 36 | None | None | None |
|------+-------------+-------------+------------+------------|
| 8MB | (1) 1M x 36 | (1) 1M x 36 | None | None |
|------+-------------+-------------+------------+------------|
| 12MB | (1) 2M x 36 | (1) 1M x 36 | None | None |
|------+-------------+-------------+------------+------------|
| 12MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x | None |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 4M x 36 | None | None | None |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 2M x 36 | (1) 1M x 36 | (1) 1M x | None |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 2M x 36 | (1) 2M x 36 | None | None |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x | (1) 1M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 20MB | (1) 4M x 36 | (1) 1M x 36 | None | None |
|------+-------------+-------------+------------+------------|
| 20MB | (1) 2M x 36 | (1) 1M x 36 | (1) 1M x | (1) 1M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 20MB | (1) 1M x 36 | (1) 2M x 36 | (1) 2M x | None |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 24MB | (1) 4M x 36 | (1) 1M x 36 | (1) 1M x | None |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 24MB | (1) 4M x 36 | (1) 2M x 36 | None | None |
|------+-------------+-------------+------------+------------|
| 24MB | (1) 2M x 36 | (1) 2M x 36 | (1) 2M x | None |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 28MB | (1) 4M x 36 | (1) 1M x 36 | (1) 1M x | (1) 1M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 28MB | (1) 1M x 36 | (1) 2M x 36 | (1) 2M x | (1) 2M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 32MB | (1) 8M x 36 | None | None | None |
|------+-------------+-------------+------------+------------|
| 32MB | (1) 4M x 36 | (1) 2M x 36 | (1) 2M x | None |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 32MB | (1) 4M x 36 | (1) 4M x 36 | None | None |
|------+-------------+-------------+------------+------------|
| 32MB | (1) 2M x 36 | (1) 2M x 36 | (1) 2M x | (1) 2M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 36MB | (1) 8M x 36 | (1) 1M x 36 | None | None |
|------+-------------+-------------+------------+------------|
| 40MB | (1) 8M x 36 | (1) 1M x 36 | (1) 1M x | None |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 40MB | (1) 8M x 36 | (1) 2M x 36 | None | None |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SIMM CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|-------+-------------+------------+------------+------------|
| 40MB | (1) 4M x 36 | (1) 2M x | (1) 2M x | (1) 2M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 44MB | (1) 8M x 36 | (1) 1M x | (1) 1M x | (1) 1M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 48MB | (1) 8M x 36 | (1) 2M x | (1) 2M x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 48MB | (1) 8M x 36 | (1) 4M x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 48MB | (1) 4M x 36 | (1) 4M x | (1) 4M x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 56MB | (1) 8M x 36 | (1) 2M x | (1) 2M x | (1) 2M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 64MB | (1) 8M x 36 | (1) 4M x | (1) 4M x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 64MB | (1) 8M x 36 | (1) 8M x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 64MB | (1) 4M x 36 | (1) 4M x | (1) 4M x | (1) 4M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 72MB | (1) 2M x 36 | (1) 8M x | (1) 8M x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 80MB | (1) 8M x 36 | (1) 4M x | (1) 4M x | (1) 4M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 96MB | (1) 8M x 36 | (1) 8M x | (1) 8M x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 112MB | (1) 8M x 36 | (1) 8M x | (1) 8M x | (1) 4M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 128MB | (1) 8M x 36 | (1) 8M x | (1) 8M x | (1) 8M x |
| | | 36 | 36 | 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 |
|---------------------------+--------------------------------|
| 256KB | (8) 32K x 8 |
|------------------------------------------------------------|
| Note: Bank 0 is factory installed and is not configurable. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE SELECTION |
|------------------------------------------------------------|
| Type | JU10 |
|-------------------------------+----------------------------|
| 80486SX | Pins 2 & 3 closed |
|-------------------------------+----------------------------|
| All other CPU types | Pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE SELECTION |
|------------------------------------------------------------|
| Type | JU11 |
|-----------------------------+------------------------------|
| S-series CPU | Pins 2 & 3 closed |
|-----------------------------+------------------------------|
| Non S-series CPU | Pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE SELECTION |
|------------------------------------------------------------|
| Type | JU13 |
|-------------------------------+----------------------------|
| Non ODP CPU | Closed |
|-------------------------------+----------------------------|
| ODP CPU | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE SELECTION |
|------------------------------------------------------------|
| Type | JU14 |
|-------------------------------+----------------------------|
| P24D | Closed |
|-------------------------------+----------------------------|
| P24T | Closed |
|-------------------------------+----------------------------|
| All other CPU types | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU MULTIPLIER SELECTION |
|------------------------------------------------------------|
| Multiplier | JU12 |
|----------------------------+-------------------------------|
| 2x | Pins 2 & 3 closed |
|----------------------------+-------------------------------|
| 2.5x | Pins 1 & 2 closed |
|----------------------------+-------------------------------|
| 3x | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DMA CHANNEL SELECTION |
|------------------------------------------------------------|
| Channel | JU103 | JU104 |
|------------------+--------------------+--------------------|
| 3 | Pins 7 & 8 closed | Pins 7 & 8 closed |
|------------------+--------------------+--------------------|
| 5 | Pins 5 & 6 closed | Pins 5 & 6 closed |
|------------------+--------------------+--------------------|
| 6 | Pins 3 & 4 closed | Pins 3 & 4 closed |
|------------------+--------------------+--------------------|
| 7 | Pins 1 & 2 closed | Pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT 1 INTERRUPT SELECTION |
|------------------------------------------------------------|
| IRQ | JU100 |
|----------------------------+-------------------------------|
| » | IRQ4 | Pins 2 & 3 closed |
|-----+----------------------+-------------------------------|
| | IRQ3 | Pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT 2 INTERRUPT SELECTION |
|------------------------------------------------------------|
| IRQ | JU101 |
|----------------------------+-------------------------------|
| » | IRQ3 | Pins 1 & 2 closed |
|-----+----------------------+-------------------------------|
| | IRQ4 | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PARALLEL PORT INTERRUPT SELECTION |
|------------------------------------------------------------|
| IRQ | JU102 |
|----------------------------+-------------------------------|
| » | IRQ7 | Pins 1 & 2 closed |
|-----+----------------------+-------------------------------|
| | IRQ5 | Pins 2 & 3 closed |
+------------------------------------------------------------+