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# BOCA RESEARCH INC.
BOCARAM/AT
Card Type Memory card
Chipset/Controller N/A
I/O Options N/A
Maximum DRAM 4096KB
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|---------------------+-----------+---------------+----------|
| Add-On board | CN1 | Add-On board | CN3 |
| connector | | connector | |
|---------------------+-----------+---------------+----------|
| Add-On board | CN2 | Add-On board | CN4 |
| connector | | connector | |
|------------------------------------------------------------|
| Note: CN1 interfaces with CN3, CN2 interfaces with CN4 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| FACTORY CONFIGURED - DO NOT ALTER |
|------------------------------------------------------------|
| Switch | Position |
|----------------------------+-------------------------------|
| SW2/7 | Pins 2 & 3 closed |
|----------------------------+-------------------------------|
| SW2/8 | Pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SYSTEM SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | JP2 |
|----------------------------+-------------------------------|
| ³ 12Mhz | Pins 2 & 3 closed |
|----------------------------+-------------------------------|
| < 12Mhz | Pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SYSTEM EXTENDED MEMORY CONFIGURATION |
|------------------------------------------------------------|
| Ext. | Max. | SW1/1 | SW1/2 | SW1/3 | SW1/4 | JP1 |
| Memory | Memory | | | | | |
|---------+---------+-------+-------+-------+-------+--------|
| 0MB | N/A | Off | Off | On | Off | Pins 2 |
| | | | | | | & 3 |
| | | | | | | closed |
|---------+---------+-------+-------+-------+-------+--------|
| 512KB | N/A | Off | Off | On | On | Pins 2 |
| | | | | | | & 3 |
| | | | | | | closed |
|---------+---------+-------+-------+-------+-------+--------|
| 1.0MB | N/A | Off | On | Off | Off | Pins 2 |
| | | | | | | & 3 |
| | | | | | | closed |
|---------+---------+-------+-------+-------+-------+--------|
| 1.5MB | N/A | Off | On | Off | On | Pins 2 |
| | | | | | | & 3 |
| | | | | | | closed |
|---------+---------+-------+-------+-------+-------+--------|
| 2.0MB | N/A | Off | On | On | Off | Pins 2 |
| | | | | | | & 3 |
| | | | | | | closed |
|---------+---------+-------+-------+-------+-------+--------|
| 2.5MB | N/A | Off | On | On | On | Pins 2 |
| | | | | | | & 3 |
| | | | | | | closed |
|---------+---------+-------+-------+-------+-------+--------|
| 3.0MB | N/A | On | Off | Off | Off | Pins 2 |
| | | | | | | & 3 |
| | | | | | | closed |
|---------+---------+-------+-------+-------+-------+--------|
| 3.5MB | 3.5MB | On | Off | Off | On | Pins 2 |
| | | | | | | & 3 |
| | | | | | | closed |
|---------+---------+-------+-------+-------+-------+--------|
| 4.0MB | 2.0MB | On | Off | On | Off | Pins 2 |
| | | | | | | & 3 |
| | | | | | | closed |
|---------+---------+-------+-------+-------+-------+--------|
| 4.5MB | 2.5MB | On | Off | On | On | Pins 2 |
| | | | | | | & 3 |
| | | | | | | closed |
|---------+---------+-------+-------+-------+-------+--------|
| 5.0MB | 2.0MB | On | On | Off | Off | Pins 2 |
| | | | | | | & 3 |
| | | | | | | closed |
|---------+---------+-------+-------+-------+-------+--------|
| 5.5MB | 1.5MB | On | On | Off | On | Pins 2 |
| | | | | | | & 3 |
| | | | | | | closed |
|---------+---------+-------+-------+-------+-------+--------|
| 6.0MB | 1.0MB | On | On | On | Off | Pins 2 |
| | | | | | | & 3 |
| | | | | | | closed |
|---------+---------+-------+-------+-------+-------+--------|
| 6.5MB | 512KB | On | On | On | On | Pins 2 |
| | | | | | | & 3 |
| | | | | | | closed |
|---------+---------+-------+-------+-------+-------+--------|
| 7.0MB | N/A | Off | Off | Off | Off | Pins 1 |
| | | | | | | & 2 |
| | | | | | | closed |
|---------+---------+-------+-------+-------+-------+--------|
| 7.5MB | N/A | Off | Off | Off | On | Pins 1 |
| | | | | | | & 2 |
| | | | | | | closed |
|---------+---------+-------+-------+-------+-------+--------|
| 8.0MB | N/A | Off | Off | On | Off | Pins 1 |
| | | | | | | & 2 |
| | | | | | | closed |
|---------+---------+-------+-------+-------+-------+--------|
| 8.5MB | N/A | Off | Off | On | On | Pins 1 |
| | | | | | | & 2 |
| | | | | | | closed |
|---------+---------+-------+-------+-------+-------+--------|
| 9.0MB | N/A | Off | On | Off | Off | Pins 1 |
| | | | | | | & 2 |
| | | | | | | closed |
|---------+---------+-------+-------+-------+-------+--------|
| 9.5MB | N/A | Off | On | Off | On | Pins 1 |
| | | | | | | & 2 |
| | | | | | | closed |
|---------+---------+-------+-------+-------+-------+--------|
| 10.0MB | N/A | Off | On | On | Off | Pins 1 |
| | | | | | | & 2 |
| | | | | | | closed |
|---------+---------+-------+-------+-------+-------+--------|
| 10.5MB | N/A | Off | On | On | On | Pins 1 |
| | | | | | | & 2 |
| | | | | | | closed |
|---------+---------+-------+-------+-------+-------+--------|
| 11.0MB | 3.5MB | On | Off | Off | Off | Pins 1 |
| | | | | | | & 2 |
| | | | | | | closed |
|---------+---------+-------+-------+-------+-------+--------|
| 11.5MB | 2.0MB | On | Off | Off | On | Pins 1 |
| | | | | | | & 2 |
| | | | | | | closed |
|---------+---------+-------+-------+-------+-------+--------|
| 12.0MB | 2.5MB | On | Off | On | Off | Pins 1 |
| | | | | | | & 2 |
| | | | | | | closed |
|---------+---------+-------+-------+-------+-------+--------|
| 12.5MB | 2.0MB | On | Off | On | On | Pins 1 |
| | | | | | | & 2 |
| | | | | | | closed |
|---------+---------+-------+-------+-------+-------+--------|
| 13.0MB | 1.5MB | On | On | Off | Off | Pins 1 |
| | | | | | | & 2 |
| | | | | | | closed |
|---------+---------+-------+-------+-------+-------+--------|
| 13.5MB | 1.0MB | On | On | Off | On | Pins 1 |
| | | | | | | & 2 |
| | | | | | | closed |
|---------+---------+-------+-------+-------+-------+--------|
| 14.0MB | 512KB | On | On | On | Off | Pins 1 |
| | | | | | | & 2 |
| | | | | | | closed |
|------------------------------------------------------------|
| Note: Extended memory is memory already installed prior to |
| adding BOCARAM/AT Card. |
| |
| Maximum memory is the maximum amount of memory that can be |
| added from the BOCARAM/AT card. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BOCARAM/AT EXTENDED MEMORY CONFIGURATION |
|------------------------------------------------------------|
| Extended Memory | SW1/5 | SW1/6 | SW1/7 | SW1/8 |
|-----------------+----------+----------+----------+---------|
| 512KB | Off | Off | Off | On |
|-----------------+----------+----------+----------+---------|
| 1.0MB | Off | Off | On | Off |
|-----------------+----------+----------+----------+---------|
| 1.5MB | Off | Off | On | On |
|-----------------+----------+----------+----------+---------|
| 2.0MB | Off | On | Off | Off |
|-----------------+----------+----------+----------+---------|
| 2.5MB | Off | On | Off | On |
|-----------------+----------+----------+----------+---------|
| 3.0MB | Off | On | On | Off |
|-----------------+----------+----------+----------+---------|
| 3.5MB | Off | On | On | On |
|-----------------+----------+----------+----------+---------|
| 4.0MB | On | Off | Off | Off |
|-----------------+----------+----------+----------+---------|
| None | Off | Off | Off | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| I/O PORT ADDRESS SELECTION |
|------------------------------------------------------------|
| Address | SW2/1 | SW2/2 | SW2/3 | SW2/4 |
|----------------+----------+----------+----------+----------|
| » | 268h-269h | Off | Off | Off | On |
|---+------------+----------+----------+----------+----------|
| | 208h-209h | On | Off | Off | Off |
|---+------------+----------+----------+----------+----------|
| | 218h-219h | Off | On | Off | Off |
|---+------------+----------+----------+----------+----------|
| | 258h-259h | Off | Off | On | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| FRAME SEGMENT ADDRESS SELECTION |
|------------------------------------------------------------|
| Address | SW1/5 | SW1/6 |
|------------------------+-----------------+-----------------|
| » | D000h | Off | On |
|-----+------------------+-----------------+-----------------|
| | E000h | On | Off |
+------------------------------------------------------------+
IMG IMG 2
+------------------------------------------------------------+
| BOCARAM/AT EXTENDED MEMORY CONFIGURATION IN ADDITION TO |
| CONVENTIONAL MEMORY |
|------------------------------------------------------------|
| Memory |SW1/1|SW1/2|SW1/3|SW1/4|SW1/5|SW1/6|SW1/7|SW1/8|JP1|
|--------+-----+-----+-----+-----+-----+-----+-----+-----+---|
| 0KB | Off | Off | Off | On | Off | Off | Off | On |2 &|
| | | | | | | | | | 3 |
|--------+-----+-----+-----+-----+-----+-----+-----+-----+---|
| 512KB | Off | Off | Off | On | Off | Off | On | Off |2 &|
| | | | | | | | | | 3 |
|--------+-----+-----+-----+-----+-----+-----+-----+-----+---|
| 1.0MB | Off | Off | Off | On | Off | Off | On | On |2 &|
| | | | | | | | | | 3 |
|--------+-----+-----+-----+-----+-----+-----+-----+-----+---|
| 1.5MB | Off | Off | Off | On | Off | On | Off | Off |2 &|
| | | | | | | | | | 3 |
|--------+-----+-----+-----+-----+-----+-----+-----+-----+---|
| 2.0MB | Off | Off | Off | On | Off | On | Off | On |2 &|
| | | | | | | | | | 3 |
|--------+-----+-----+-----+-----+-----+-----+-----+-----+---|
| 2.5MB | Off | Off | Off | On | Off | On | On | Off |2 &|
| | | | | | | | | | 3 |
|--------+-----+-----+-----+-----+-----+-----+-----+-----+---|
| 3.0MB | Off | Off | Off | On | Off | On | On | On |2 &|
| | | | | | | | | | 3 |
|--------+-----+-----+-----+-----+-----+-----+-----+-----+---|
| 3.5MB | Off | Off | Off | On | On | Off | Off | Off |2 &|
| | | | | | | | | | 3 |
|------------------------------------------------------------|
|Note:Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|--------+------------+------------+------------+------------|
| 128KB | (16) 4164 | None | None | None |
|--------+------------+------------+------------+------------|
| 512KB | (16) 41256 | None | None | None |
|--------+------------+------------+------------+------------|
| 1MB | (16) 41256 | (16) 41256 | None | None |
|--------+------------+------------+------------+------------|
| 1.5MB | (16) 41256 | (16) 41256 | (16) 41256 | None |
|--------+------------+------------+------------+------------|
| 2MB | (16) 41256 | (16) 41256 | (16) 41256 | (16) 41256 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION - ADD-ON BOARD |
|------------------------------------------------------------|
| Size | Bank 4 | Bank 5 | Bank 6 | Bank 7 |
|--------+------------+------------+------------+------------|
| 2.5MB | (16) 41256 | None | None | None |
|--------+------------+------------+------------+------------|
| 3MB | (16) 41256 | (16) 41256 | None | None |
|--------+------------+------------+------------+------------|
| 3.5MB | (16) 41256 | (16) 41256 | (16) 41256 | None |
|--------+------------+------------+------------+------------|
| 4MB | (16) 41256 | (16) 41256 | (16) 41256 | (16) 41256 |
+------------------------------------------------------------+