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# JAMECO ELECTRONIC COMPONENTS
JE1078
Card Type Multi I/O card
Chipset/Controller Unidentified
I/O Options Game port, memory, parallel port, serial
port
Maximum DRAM 384KB
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|--------------------+----------+-----------------+----------|
| Serial port | J1 | Game port | J3 |
|--------------------+----------+-----------------+----------|
| Parallel port | J2 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT CONFIGURATION |
|------------------------------------------------------------|
| Port 1 (J1) | JP2 |
|----------------------------+-------------------------------|
| » | COM1 | Pins 2 & 3 closed |
|-----+----------------------+-------------------------------|
| | COM2 | Pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT NORMAL/FORCED TRUE CONFIGURATION |
|------------------------------------------------------------|
| Port 1 | JP4 |
|--------------------------+---------------------------------|
| » | Normal | Pins 1 & 4, 2 & 5, 3 & 6 closed |
|---+----------------------+---------------------------------|
| | Forced True | Pins 4 & 7, 5 & 8, 6 & 9 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT INTERRUPT SELECTION |
|------------------------------------------------------------|
| Port 1 | JP1 |
|----------------------------+-------------------------------|
| » | IRQ4 | Pins 3 & 4 closed |
|----+-----------------------+-------------------------------|
| | IRQ3 | Pins 2 & 4 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PARALLEL PORT CONFIGURATION |
|------------------------------------------------------------|
| LPT | IRQ7 | JP1/Pins 13 & 14 | JP2 |
|---------+-----------+------------------+-------------------|
| » | 1 | Enabled | Closed | Pins 5 & 6 closed |
|---+-----+-----------+------------------+-------------------|
| | 2 | Disabled | Open | Pins 4 & 5 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CLOCK/CALENDAR CONFIGURATION |
|------------------------------------------------------------|
| Select | I/O Port Address | JP2 |
|-----------------+--------------------+---------------------|
| » | Clock 2 | 2C0h - 2DFh | Pins 7 & 8 closed |
|---+-------------+--------------------+---------------------|
| | Clock 1 | 340h - 35Fh | Pins 8 & 9 closed |
|---+-------------+--------------------+---------------------|
| | Disabled | N/A | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CLOCK/CALENDAR INTERRUPT SELECTION |
|------------------------------------------------------------|
| IRQ | JP1 |
|----------------------------+-------------------------------|
| 4 | Pins 5 & 6 closed |
|----------------------------+-------------------------------|
| 5 | Pins 7 & 8 closed |
|----------------------------+-------------------------------|
| 7 | Pins 9 & 10 closed |
|----------------------------+-------------------------------|
| 2 | Pins 11 & 12 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
|Size |Bank 0|Bank |Bank |Bank |Bank |Bank |SW1/4|SW1/5|SW1/6|
| | | 1 | 2 | 3 | 4 | 5 | | | |
|-----+------+-----+-----+-----+-----+-----+-----+-----+-----|
|64KB | (9) |None |None |None |None |None | Off | Off | Off |
| | 4164 | | | | | | | | |
|-----+------+-----+-----+-----+-----+-----+-----+-----+-----|
|128KB| (9) | (9) |None |None |None |None | Off | Off | On |
| | 4164 |4164 | | | | | | | |
|-----+------+-----+-----+-----+-----+-----+-----+-----+-----|
|192KB| (9) | (9) | (9) |None |None |None | Off | On | Off |
| | 4164 |4164 |4164 | | | | | | |
|-----+------+-----+-----+-----+-----+-----+-----+-----+-----|
|256KB| (9) | (9) | (9) | (9) |None |None | On | Off | Off |
| | 4164 |4164 |4164 |4164 | | | | | |
|-----+------+-----+-----+-----+-----+-----+-----+-----+-----|
|320KB| (9) | (9) | (9) | (9) | (9) |None | On | Off | On |
| | 4164 |4164 |4164 |4164 |4164 | | | | |
|-----+------+-----+-----+-----+-----+-----+-----+-----+-----|
|384KB| (9) | (9) | (9) | (9) | (9) | (9) | On | On | Off |
| | 4164 |4164 |4164 |4164 |4164 |4164 | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| STARTING MEMORY ADDRESS CONFIGURATION |
|------------------------------------------------------------|
| Starting Address | Max. RAM on | SW1/1 | SW1/2 | SW1/3 |
| | JE1078 | | | |
|------------------+-----------------+-------+-------+-------|
| 0KB (:00000) | 384KB | Off | Off | Off |
|------------------+-----------------+-------+-------+-------|
| 64KB (:10000) | 384KB | Off | Off | On |
|------------------+-----------------+-------+-------+-------|
| 128KB (:20000) | 384KB | Off | On | Off |
|------------------+-----------------+-------+-------+-------|
| 192KB (:30000) | 384KB | Off | On | On |
|------------------+-----------------+-------+-------+-------|
| 256KB (:40000) | 384KB | On | Off | Off |
|------------------+-----------------+-------+-------+-------|
| 320KB (:50000) | 320KB | On | Off | On |
|------------------+-----------------+-------+-------+-------|
| 384KB (:60000) | 256KB | On | On | Off |
|------------------+-----------------+-------+-------+-------|
| 448KB (:70000) | 192KB | On | On | On |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PARITY CONFIGURATION |
|------------------------------------------------------------|
| Setting | JP3 |
|---------------------------------+--------------------------|
| » | Enabled | Closed |
|---+-----------------------------+--------------------------|
| | Disabled | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| FACTORY CONFIGURED - DO NOT ALTER |
|------------------------------------------------------------|
| Jumper | Position |
|-----------------------------+------------------------------|
| JP5 | N/A |
+------------------------------------------------------------+