Sun-4/E
Jumper Descriptions
- BOARD SIZE
- Sets the memory size of the board.
- BOARD ID
- Determines where a memory board is mapped into the 256MByte space allocated
for memory expansion.
- HI/LOW MEM
- IN maps the memory board into the lowest 256MBytes of CPU type 0
space.
OUT maps the memory board in the address range between 256MBytes and
512MBytes.
- 1M/4M DRAM
- Specifies 1MByte or 4Mbyte DRAM modules.
Jumper Settings
Memory Mapped into the Upper 256MBytes of Type 0 Address Space
BOARD
SIZE |
BOARD
ID |
HI/LOW
MEM |
1/4MB
DRAM |
ADDRESS RANGE |
|
| J0502 |
J0503 |
J0504 |
J0505 |
J0506 |
J0501 |
PHYSICAL ADDR RANGE |
| Out |
Out |
Out |
Out |
Out |
Out |
0x1000000 - 0x103fffff |
| Out |
Out |
Out |
In |
Out |
Out |
0x11000000 - 0x113fffff |
| Out |
Out |
In |
Out |
Out |
Out |
0x12000000 - 0x123fffff |
| Out |
Out |
In |
In |
Out |
Out |
0x13000000 - 0x133fffff |
Memory Mapped into the Lower 256MBytes of Type 0 Address Space
BOARD
SIZE |
BOARD
ID |
HI/LOW
MEM |
1/4MB
DRAM |
ADDRESS RANGE |
|
| J0502 |
J0503 |
J0504 |
J0505 |
J0506 |
J0501 |
PHYSICAL ADDR RANGE |
| Out |
Out |
Out |
Out |
In |
Out |
0x0000000 - 0x003fffff |
| Out |
Out |
Out |
In |
In |
Out |
0x01000000 - 0x013fffff |
| Out |
Out |
In |
Out |
In |
Out |
0x02000000 - 0x023fffff |
| Out |
Out |
In |
In |
In |
Out |
0x03000000 - 0x033fffff |
Notes
- For specific application dependent memory configurations refer to the
SPARCengine 1E ECC Memory Card User's Manual, 800-8138.
- The default configuration for Hi Mem/Low Mem is J0506, OUT.
Reference
- SPARCengine 1E ECC Memory Card User's Manual, 800-8138.
Last updated: December 2, 1996
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