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M68060 Datasheet(PDF) 98 Page - Motorola, Inc |
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M68060 Datasheet(HTML) 98 Page - Motorola, Inc |
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98 / 416 page  Memory Management Unit MOTOROLA M68060 USER’S MANUAL 4-29 operation and before translation is enabled. PFLUSH can be executed even if the E-bit is cleared. Figure 4-21. Address Translation Flowchart ENTRY EXIT OTHERWISE TAKE ACCESS ERROR EXCEPTION ABORT CYCLE ATC HIT OTHERWISE ABORT CYCLE TABLE SEARCH OPERATION TAKE ACCESS ERROR EXCEPTION EXIT OTHERWISE PA ATC ENTRY [PA] UPA ATC ENTRY [U1,U0] CM ATC ENTRY [CM] PA LOGICAL ADDRESS UPA TTR1* [U1,U0] CM TTR1* [CM] EXIT PA LOGICAL ADDRESS UPA TTR0* [U1,U0] CM TTR0* [CM] ABORT CYCLE (TTR1*[W] = 1) AND (WRITE OR LOCKED RMW ACCESS) (TTR0*[W] = 1) AND (WRITE OR LOCKED RMW ACCESS) LOGICAL ADDRESS MATCHES WITH TTR0* OTHERWISE ATC MISS [(W = 1) AND (WRITE OR LOCKED RMW CYCLE) LOGICAL ADDRESS MATCHES WITH TTRx* OTHERWISE OTHERWISE (M = 0) AND (WRITE OR LOCKED RMW CYCLE) * Refers to either instruction or data transparent translation register. |
Similar Part No. - M68060 |
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Similar Description - M68060 |
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