
Appendix B Technical Summary
Memory Decode Ranges From Processor Perspective :
| Memory Range | Target | Dependency/Comments | 
| 0000  | Main Memory | TOM registers in Host Controller | 
| 0010  | 
 | 
 | 
| Memory) | 
 | 
 | 
| 000E  | FWH | Bit 7 in FWH Decode Enable | 
| 
 | 
 | Register is set | 
| FEC0  | I/O APIC inside ICH2 | 
 | 
| FFC0  | FWH | Bit 0 in FWH Decode Enable | 
| FF80  | 
 | Register | 
| FFC8  | FWH | Bit 1 in FWH Decode Enable | 
| FF88  | 
 | Register | 
| FFD0  | FWH | Bit 2 in FWH Decode Enable | 
| FF90  | 
 | Register is set | 
| FFD8  | FWH | Bit 3 in FWH Decode Enable | 
| FF98  | 
 | Register is set | 
| FFE0  | FWH | Bit 4 in FWH Decode Enable | 
| FFA0  | 
 | Register is set | 
| FFE8  | FWH | Bit 5 in FWH Decode Enable | 
| FFA8  | 
 | Register is set | 
| FFF0  | FWH | Bit 6 in FWH Decode Enable | 
| FFB0  | 
 | Register is set | 
| FFF8  | FWH | Always Enabled. | 
| FFB8  | 
 | The top two 64K blocks of this | 
| 
 | 
 | range can be swapped as | 
| 
 | 
 | described in Section 6.4.1. | 
| FF70  | FWH | Bit 3 in FWH Decode Enable 2 | 
| FF30  | 
 | Register is set | 
| FF60  | FWH | Bit 2 in FWH Decode Enable 2 | 
| FF20  | 
 | Register is set | 
| FF50  | FWH | Bit 1 in FWH Decode Enable 2 | 
| FF10  | 
 | Register is set | 
| FF40  | FWH | Bit 0 in FWH Decode Enable 2 | 
| FF00  | 
 | Register is set | 
| Anywhere in 4GB range | D110 LAN Controller | Enable via BAR in Device | 
| 
 | 
 | 29:Function 0 (D110 LAN | 
| 
 | 
 | Controller) | 
| All Other | PCI | None | 
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