82443MX Datasheet, PDF (88/173 Pages) Intel Corporation – PCIset

82443MX PCIset
High SMRAM Memory
Cacheable Region
(Remapping from below 1 MB)
High-memory
257 MB
4 GB
Top Of DRAM (TOD)
128 MB
Cacheable Region
Top Of Memory (TOM)
TOM-TSEG_SZ
Cacheable Region
1 MB
Legacy SMRAM
Memory Region
Low-memory
640 KB
Figure 7. SMRAM Mapping
Cacheable Region
512 MB
256 + TOM
T-Segment Region
(Cacheable)
256+TOM-TSEG_SZ
256+1 MB
257 MB
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