In-Order Queue Depth Selection

If the processor samples its A7# pin low on the trailing-edge of reset, it configures the depth of its In-Order Queue (IOQ) to one. Sampling A7# high configures its queue depth to 12. The IOQ is described in “Transaction Tracking” on page 1147.

Get The Unabridged Pentium 4 IA32 Processor Genealogy now with the O’Reilly learning platform.

O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.