MC68EC040RC25 Freescale Semiconductor, MC68EC040RC25 Datasheet - Page 59

• Manufacturer Part Number: MC68EC040RC25
• Manufacturer: Freescale Semiconductor

Specifications of MC68EC040RC25

• Family Name: M68000
• Device Core: ColdFire
• Device Core Size: 32b
• Frequency (max): 25MHz
• Instruction Set Architecture: RISC
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Through Hole
• Pin Count: 179
• Package Type: PGA
• Lead Free Status / Rohs Status: Supplier Unconfirmed

3-10
PFA - PAGE FRAME ADDRESS
DF[ ] - DESCRIPTOR FIELD
WP - ACCUMULATED WRITE-
ABBREVIATIONS:
Figure 3-9. Detailed Flowchart of Table Search Operation
EXIT TABLE SEARCH
CREATE ATC ENTRY
PROTECTION STATUS
ASSIGNMENT OPERATOR
WITH R-BIT CLEAR
Freescale Semiconductor, Inc.
'INVALID'
'INVALID'
OTHERWISE
'INVALID'
For More Information On This Product,
M68040 USER'S MANUAL
Go to: www.freescale.com
(CHECK DESCRIPTOR TYPE)
(CHECK DESCRIPTOR TYPE)
(CHECK DESCRIPTOR TYPE)
(CHECK DESCRIPTOR TYPE)
SELECT ROOT POINTER
(INITIALIZE ACCRUED
FC2 = 0:URP, 1:SRP
TYPE
UPDATE
TYPE 'POINTER'
FETCH INDIRECT
FETCH POINTER
TYPE
FETCH ROOT
DESCRIPTOR
DESCRIPTOR
FETCH PAGE
DESCRIPTOR
DESCRIPTOR
'RESIDENT'
'RESIDENT'
'INDIRECT'
STATUS)
WP
ENTRY
'INDIRECT'
'PAGE'
0
FALSE
ATC ENTRY
'RESIDENT'
'RESIDENT'
CREATE ATC ENTRY WITH R-BIT SET
PFA = PHYSICAL ADDRESS
ATC TAG
FIELD OF DESCRIPTOR
EXIT TABLE SEARCH
PFA, DF[U1,U0,S,CM,M],WP
FC2, LA, DF[G]
MOTOROLA