Sun Microsystems SPARCstation 10SX System Configuration Manual page 15

below illustrates the physical address map of a system configured with one
TABLE 2-2
4 MByte VSIMM installed in slot 4 and 16 MByte DSIMMs in the remaining slots.
SPARCstation 10SX System Memory Layout
TABLE 2-2
One 4 MByte VSIMM, Seven 16 MByte DSIMMs
SIMM Slots DSIMM/VSIMM Size
Slot 7 16 MByte DSIMM
Slot 3 16 MByte DSIMM
Slot 6 16 MByte DSIMM
Slot 2 16 MByte DSIMM
Slot 5 16 MByte DSIMM
Slot 1 16 MByte DSIMM
Slot 4 4 MByte VSIMM
Slot 0 16 MByte DSIMM
Thus, on systems configured with 16 MByte DSIMMS, the maximum size of a
physically contiguous block of DRAM is 16 MByte. However, you can reserve
multiple blocks of SXDRAM on such systems. In order to be able to configure a
single block of SXDRAM greater than 16 MByte, the system must be configured with
64 MByte DSIMMs.
illustrates a system configured with one 4 MByte VSIMM and seven 64
TABLE 2-3
MByte DSIMMs.
SPARCstation 10SX System Memory Layout
TABLE 2-3
One 4 MByte VSIMM, Seven 64 MByte DSIMMs
SIMM Slots DSIMM/VSIMM Size
Slot 7 64 MByte DSIMM
Slot 3 64 MByte DSIMM
Slot 6 64 MByte DSIMM
Slot 2 64 MByte DSIMM
Slot 5 64 MByte DSIMM
Slot 1 64 MByte DSIMM
Slot 4 4 MByte VSIMM
Slot 0 64 MByte DSIMM
Physical Address
0x1c000000
0xc000000
0x18000000
0x8000000
0x14000000
0x4000000
0xf0000000
0x0
Physical Address
0x1c000000
0xc000000
0x18000000
0x8000000
0x14000000
0x4000000
0xf0000000
0x0
Chapter 2 Reserving DRAM for SX Accelerated Applications 7