July 2004
Intermediate to advanced
1744 pages
35h 3m
English
Content preview from The Unabridged Pentium 4 IA32 Processor Genealogy
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Program-Accessible Startup Features
See Table 36-4 on page 870 and Figure 36-10 on page 872. The processor's MSR_EBC_HARD_POWERON (EBC stands for External Bus Controller; i.e., the FSB Controller) register is a read-only MSR that indicates the state of the automatic configuration options that were automatically enabled or disabled on the trailing-edge of reset (when the processor sampled a subset of its pins).
| Bit | Read/Write | Description |
|---|---|---|
| 0 | RO |
|
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