MICRON COMPUTER, INC.
MEMORY CARD (2/4MB)
|
Card Type |
Memory card |
|
Chip Set |
Unidentified |
|
Maximum Onboard Memory |
4MB RAM |
|
Data Bus |
16-bit ISA |
|
Card Size |
Full-length, full-height card |
|
USER CONFIGURABLE SETTINGS |
|||
|
Function |
Label |
Position |
|
|
» |
Spare disabled |
SW1/1 |
Off |
|
|
Spare enabled |
SW1/1 |
On |
|
» |
Parity enabled |
SW1/2 |
On |
|
|
Parity disabled |
SW1/2 |
Off |
|
|
DMA to extended memory enabled |
SW1/7 |
On |
|
|
DMA to extended memory disabled |
SW1/7 |
Off |
|
SHARED RAM ADDRESS CONFIGURATION |
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|
Size |
SW1/3 |
SW1/4 |
|
No backfill, no 384K offset |
Off |
Off |
|
384K offset in extended memory |
Off |
On |
|
Backfill 128K to conventional memory |
On |
Off |
|
Backfill 384K to conventional memory |
On |
On |
|
Note: If more than 1 memory board is installed and backfilling is required, only the board using the highest memory address should be set for backfill. |
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|
RAM CONFIGURATION |
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|
Size |
Mainboard |
Piggy-back board |
|
2MB |
2MB |
No board |
|
4MB |
2MB |
2MB |
|
RAM JUMPER CONFIGURATION |
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|
Starting address |
Ending address (2MB) |
Ending address (4MB) |
SW1/8 |
SW2/1 |
SW2/2 |
SW2/3 |
SW2/4 |
|
Board is off |
|
|
Off |
Off |
Off |
Off |
Off |
|
Board is off |
|
|
Off |
Off |
Off |
Off |
On |
|
1024K |
3072K |
5120K |
Off |
Off |
Off |
On |
Off |
|
1536K |
3584K |
5632K |
Off |
Off |
Off |
On |
On |
|
2048K |
4096K |
6144K |
Off |
Off |
On |
Off |
Off |
|
2560K |
4608k |
6656k |
Off |
Off |
On |
Off |
On |
|
3072K |
5120K |
7168K |
Off |
Off |
On |
On |
Off |
|
3584K |
5632K |
7680K |
Off |
Off |
On |
On |
On |
|
4096K |
6144K |
8192K |
Off |
On |
Off |
Off |
Off |
|
4608K |
6656K |
8704K |
Off |
On |
Off |
Off |
On |
|
5120K |
7168K |
9216K |
Off |
On |
Off |
On |
Off |
|
5632K |
7680K |
9728K |
Off |
On |
Off |
On |
On |
|
6144K |
8192K |
10240K |
Off |
On |
On |
Off |
Off |
|
6656K |
8704K |
10752K |
Off |
On |
On |
Off |
On |
|
7168K |
9216K |
11264K |
Off |
On |
On |
On |
Off |
|
7680K |
9728K |
11776K |
Off |
On |
On |
On |
On |
|
8192K |
10240K |
12288K |
On |
Off |
Off |
Off |
Off |
|
8704K |
10752K |
12800K |
On |
Off |
Off |
Off |
On |
|
9216K |
11264K |
13312K |
On |
Off |
Off |
On |
Off |
|
9728K |
11776K |
13824K |
On |
Off |
Off |
On |
On |
|
10240K |
12288K |
14336K |
On |
Off |
On |
Off |
Off |
|
10752K |
12800K |
14848K |
On |
Off |
On |
Off |
On |
|
11264K |
13312K |
15360K |
On |
Off |
Off |
On |
Off |
|
11776K |
13824K |
15872K |
On |
Off |
On |
On |
On |
|
12288K |
14356K |
16384K |
On |
On |
Off |
Off |
Off |
|
12800K |
14848K |
16384K |
On |
On |
Off |
Off |
On |
|
13312K |
15360K |
16384K |
On |
On |
Off |
On |
Off |
|
13824K |
15872K |
16384K |
On |
On |
Off |
On |
On |
|
14336K |
16384K |
16384K |
On |
On |
On |
Off |
Off |
|
Board is off |
|
|
On |
On |
On |
Off |
On |
|
Board is off |
|
|
On |
On |
On |
On |
Off |
|
Board is off |
|
|
On |
On |
On |
On |
On |
|
Note: The values in this table are only valid if no option board memory is used for backfill and no 384K offset is used. To set starting memory address if backfill or 384K offset is used, set SW2 to the correct value. SW2/1 is the most significant bit and SW2/4 is the least significant bit. The switches have the following values: SW2/1=512KB, SW2/2=1024KB, SW2/3=2048KB, and SW2/4=4096KB. Turn the switches on and add the values to set the starting memory address. (On=1, Off=0) |
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|
WAIT STATE SELECTION |
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|
Setting |
SW1/5 |
SW1/6 |
|
0 |
Off |
On |
|
1 |
On |
Off |