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# ADVANCED MICROCOMPUTER SYSTEMS, INC.
EPP-1
Card Type Multi I/O
Chipset Controller Unidentified
I/O Options Serial port(2), parallel port
Maximum DRAM N/A
IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|---------------+--------------+---------------+-------------|
| Serial port 1 | CN1 | Serial port 2 | CN3 |
|---------------+--------------+---------------+-------------|
| Parallel port | CN2 | | |
+------------------------------------------------------------+
+------------------------------------------------------------------------------…
| PARALLEL PORT INTERRUPT …
|------------------------------------------------------------------------------…
|IRQ| H1/A | H1/B | H1/C | H1/D | H1/E | H1/F | H1/G | H1/H | H1/I | H1/J | H1/…
|---+------+------+------+------+------+------+------+------+------+------+----…
| 2 |Closed| Open | Open | Open | Open | Open | Open | Open | Open | Open | Ope…
|---+------+------+------+------+------+------+------+------+------+------+----…
| 3 | Open |Closed| Open | Open | Open | Open | Open | Open | Open | Open | Ope…
|---+------+------+------+------+------+------+------+------+------+------+----…
| 4 | Open | Open |Closed| Open | Open | Open | Open | Open | Open | Open | Ope…
|---+------+------+------+------+------+------+------+------+------+------+----…
| 5 | Open | Open | Open |Closed| Open | Open | Open | Open | Open | Open | Ope…
|---+------+------+------+------+------+------+------+------+------+------+----…
| 6 | Open | Open | Open | Open |Closed| Open | Open | Open | Open | Open | Ope…
|---+------+------+------+------+------+------+------+------+------+------+----…
| 7 | Open | Open | Open | Open | Open |Closed| Open | Open | Open | Open | Ope…
|---+------+------+------+------+------+------+------+------+------+------+----…
|10 | Open | Open | Open | Open | Open | Open |Closed| Open | Open | Open | Ope…
|---+------+------+------+------+------+------+------+------+------+------+----…
|11 | Open | Open | Open | Open | Open | Open | Open |Closed| Open | Open | Ope…
|---+------+------+------+------+------+------+------+------+------+------+----…
|12 | Open | Open | Open | Open | Open | Open | Open | Open |Closed| Open | Ope…
|---+------+------+------+------+------+------+------+------+------+------+----…
|14 | Open | Open | Open | Open | Open | Open | Open | Open | Open |Closed| Ope…
|---+------+------+------+------+------+------+------+------+------+------+----…
|15 | Open | Open | Open | Open | Open | Open | Open | Open | Open | Open |Clos…
|------------------------------------------------------------------------------…
| Note: Interrupt settings for H1 Shown. H2, and H3 use identical …
| configurations. H1 affects Parallel port 1, H2 affects serial port 1 and H3 …
| affects serial port 2. …
+------------------------------------------------------------------------------…
+------------------------------------------------------------+
| SERIAL PORT 1 ADDRESS SELECT |
|------------------------------------------------------------|
| Address | H6/A | H6/B |
|------------------+--------------------+--------------------|
| COM1 (3F8h) | Pins 1 & 2 closed | Pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| COM2 (2F8h) | Pins 1 & 2 closed | Pins 2 & 3 closed |
|------------------+--------------------+--------------------|
| COM3 (3E8h) | Pins 2 & 3 closed | Pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| Disabled | Pins 2 & 3 closed | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT 2 ADDRESS SELECT |
|------------------------------------------------------------|
| Address | H7/A | H7/B |
|------------------+--------------------+--------------------|
| COM2 (2F8h) | Pins 1 & 2 closed | Pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| COM3 (3F8h) | Pins 1 & 2 closed | Pins 2 & 3 closed |
|------------------+--------------------+--------------------|
| COM4 (2E8h) | Pins 2 & 3 closed | Pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| Disabled | Pins 2 & 3 closed | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PARALLEL PORT ADDRESS SELECT |
|------------------------------------------------------------|
| Address | H4/A | H4/B |
|------------------+--------------------+--------------------|
| 278h | Pins 1 & 2 closed | Pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| 378h | Pins 1 & 2 closed | Pins 2 & 3 closed |
|------------------+--------------------+--------------------|
| N/A | Pins 2 & 3 closed | Pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| Disabled | Pins 2 & 3 closed | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PARALLEL PORT MODE SELECT |
|------------------------------------------------------------|
| Mode | H5/A | H5/B |
|------------------+--------------------+--------------------|
| Normal | Pins 2 & 3 closed | Pins 2 & 3 closed |
|------------------+--------------------+--------------------|
| EPP | Pins 2 & 3 closed | Pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| ECP | Pins 1 & 2 closed | Pins 2 & 3 closed |
|------------------+--------------------+--------------------|
| EPP & ECP | Pins 1 & 2 closed | Pins 1 & 2 closed |
+------------------------------------------------------------+
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