BOCA RESEARCH INC.
BOCARAM/AT
|
Card Type |
Memory card |
|
Chipset/Controller |
N/A |
|
I/O Options |
N/A |
|
Maximum DRAM |
4096KB |
|
CONNECTIONS |
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|
Purpose |
Location |
Purpose |
Location |
|
Add-On board connector |
CN1 |
Add-On board connector |
CN3 |
|
Add-On board connector |
CN2 |
Add-On board connector |
CN4 |
|
Note: CN1 interfaces with CN3, CN2 interfaces with CN4 |
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|
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 |
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|
Ext. Memory |
Max. Memory |
SW1/1 |
SW1/2 |
SW1/3 |
SW1/4 |
JP1 |
|
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. |
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|
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 |
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|
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 |
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|
Address |
SW1/5 |
SW1/6 |
|
|
» |
D000h |
Off |
On |
|
|
E000h |
On |
Off |
|
BOCARAM/AT EXTENDED MEMORY CONFIGURATION IN ADDITION TO CONVENTIONAL MEMORY |
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|
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. |
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|
DRAM CONFIGURATION |
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|
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 |
