mc68ec060 Freescale Semiconductor, Inc, mc68ec060 Datasheet - Page 98

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mc68ec060

Manufacturer Part Number
mc68ec060
Description
Mc68060 Superscalar 68k Microprocessor Including The Lc060 And Ec060
Manufacturer
Freescale Semiconductor, Inc
Datasheet

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operation and before translation is enabled. PFLUSH can be executed even if the E-bit is
cleared.
MOTOROLA
* Refers to either instruction or data transparent translation register.
TABLE SEARCH
ABORT CYCLE
OPERATION
TAKE ACCESS ERROR
(WRITE OR LOCKED RMW CYCLE)
ABORT CYCLE
EXCEPTION
(WRITE OR LOCKED RMW CYCLE)
(M = 0) AND
ATC MISS
Figure 4-21. Address Translation Flowchart
[(W = 1) AND
UPA
CM
PA
OTHERWISE
OTHERWISE
M68060 USER’S MANUAL
OTHERWISE
ATC ENTRY [U1,U0]
ATC ENTRY [CM]
ATC ENTRY [PA]
ATC HIT
ENTRY
EXIT
UPA
PA
CM
OTHERWISE
LOGICAL ADDRESS
TTR1* [U1,U0]
TTR1* [CM]
LOGICAL ADDRESS
EXIT
MATCHES WITH
(WRITE OR LOCKED
(TTR1*[W] = 1) AND
TTRx*
OTHERWISE
RMW ACCESS)
TAKE ACCESS ERROR
ABORT CYCLE
EXCEPTION
MATCHES WITH TTR0*
LOGICAL ADDRESS
(WRITE OR LOCKED
(TTR0*[W] = 1) AND
Memory Management Unit
RMW ACCESS)
UPA
PA
CM
LOGICAL ADDRESS
OTHERWISE
TTR0* [U1,U0]
TTR0* [CM]
EXIT
4-29

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