MC68030RC25C Freescale Semiconductor, MC68030RC25C Datasheet - Page 343

• Manufacturer Part Number: MC68030RC25C
• Description: IC MPU 32BIT ENHANCED 128-PGA
• Manufacturer: Freescale Semiconductor

Specifications of MC68030RC25C

• Processor Type: M680x0 32-Bit
• Speed: 25MHz
• Voltage: 5V
• Mounting Type: Surface Mount
• Package / Case: 128-PGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -

9-42
CREATE ATC ENTRY WfTH
~
E X I T T A B L E S E A R C H .~
B BIT S E T
F
I
ABBREVIATIONS USED:
TA:
PFA: = PAGE FRAME ADDRESS
LPA:
= TABLE ADDRESS FIELD OF A TABLE DESCRIPTOR
= UNUSED FIELDS OF LOGICAL PAGE ADDRESS
T Y P E = ' I N V A L I D ' -
Figure 9-26, Table Search Initialization Flowchart
Figure 9-27. ATC Entry Creation Flowchart
DESCRIPTOR FETCHED AT
PFA = LPA + TA FIELD OF
T R E E L E V E L y
- INITIALIZE FOR TABLE SEARCH . ~
ACC__STATUS [WP] ~
J
ACC_STATUS [S] ~
MC68030 USER'S MANUAL
-
TYPE = "EARLY'
RETURN
-
-
"
C R E A T E A T C E N T R Y U S I N G P F A F R O M A B O V E
DESCRIPTOR FETCHED INDIRECTLY FROM
-
0
0
C EXIT TABLE SEARCH )
-
- C R E A T E A T C E N T R Y
A N D A C C R U E D S T A T U S
TYPE = ' I NDIRECT'
-
TREE LEVEL x
~
(INITIALIZE ACCRUED STATUS)
'
I
-
'
~
TYPE = ' N ORMAL'
DESCRIPTOR FETCHED AT
TREE LEVEL x
/
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