Snoop Under Hold During Replacement Write-Back - Intel Embedded Intel486 Hardware Reference Manual

Embedded intel486 processor

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EMBEDDED Intel486™ PROCESSOR HARDWARE REFERENCE MANUAL

Prefetch Cycle

To Processor

Figure 4-45. Snoop using HOLD during a Non-Cacheable, Non-Burstable Code Prefetch

Snoop under HOLD during Replacement Write-Back

Collision of snoop cycles under a HOLD during the replacement write-back cycle can never oc-

cur, because HLDA is asserted only after the replacement write-back cycle (burst or non-burst)

is completed.

Write Back Cycle

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