AMD Geode SC3200 Data Book page 279

Core Logic Module - X-Bus Expansion Interface - Function 5
Table 6-39. F5: PCI Header Registers for X-Bus Expansion (Continued)
Bit Description
Index 64h-67h
BIOS writes a value, of the Configuration Block Address.
Index 68h-FFh
AMD Geode™ SC3200 Processor Data Book
Scratchpad: Usually used for Configuration Block Address (R/W)
Reserved
32581C
Reset Value: 00000000h
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