MC68030FE25C Freescale Semiconductor, MC68030FE25C Datasheet - Page 514
MC68030FE25C
Manufacturer Part Number
MC68030FE25C
Description
IC MPU 32BIT ENHANCED 132-CQFP
Manufacturer
Freescale Semiconductor
Specifications of MC68030FE25C
Processor Type
M680x0 32-Bit
Speed
25MHz
Voltage
5V
Mounting Type
Surface Mount
Package / Case
132-CQFP
Family Name
M68000
Device Core
ColdFire
Device Core Size
32b
Frequency (max)
25MHz
Instruction Set Architecture
RISC
Supply Voltage 1 (typ)
5V
Operating Supply Voltage (max)
5.25V
Operating Supply Voltage (min)
4.75V
Operating Temp Range
0C to 70C
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Pin Count
132
Package Type
CQUAD
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Features
-
Lead Free Status / Rohs Status
Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC68030FE25C
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
Part Number:
MC68030FE25C
Manufacturer:
MOTOROLA/摩托罗拉
Quantity:
20 000
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M O T O R O L A
11.6.18 Save and Restore Operations
11.7 Address Translation Tree Search Timing
The save and restore operation table indicates the number of clock periods
from exception, with complete execution times and stack length given. No
these operations. For instruction-cache case and for no-cache case, the total
All timing data ssumes two-clock reads and writes.
The time required for a search of the address translation tree depends on
the configuration of the tree structure and the descriptors in the tree, the
time, and other factors. The large number of variables involved implies that
suitable for use with sh(1) on either UNIX ~ System V or BSD 4.2. To use the
carriage returns are entered.
The shell script assumesthat the data bus between the MC68030 and memory
needed for the processor to perform the specified state save or to return
additional tables are needed to calculate total effective execution time for
prefetch, and write cycles is given inside the parentheses as (r/p/w). The read,
prefetch, and write cycles are included in the total clock cycle number.
states of the used (U) and modified (M) bits in the descriptors, bus cycle
search time can best be calculated by a program. To determine the time
required for the MC68030 to perform the table search for a specific config-
uration, the following interactive program can be used. It is a shell script
program, run the script and answer the questions about the system config-
uration and current state. The values shown in square brackets at the ends
of the question lines are the default values that the program uses when
is 32 bits wide. To calculate the search time for a narrower bus, enter the
appropriate multiple of the bus cycle time in response to the bus cycle time
UN)X is a registered trademark of AT&T Bell Laboratories.
number of clock cycles is outside the parentheses. The number of read,
Bus Cycle Fault (Short)
Bus Cycle Fault (Long)
RTE (Normal Four Word)
RTE (Six Word)
RTE (Throwaway)
RTE (Coprocessor)
RTE (Short Fault)
RTE (Long Fault)
Operation
MC68030 USER'S M A N U A L
Head
0
0
1
1
1
1
1
1
Tail
0
0
0
0
0
0
0
0
I-Cache Case No-Cache Case
36(1/0/10)
62(1/0/24)
26(7/0/0)
36(10/0/0)
76(25/0/0)
18(4/0/0)
18(4/0/0)
12(4/0/0)
38(1/2/10)
64(1/2/24)
20(4/2/0)
26(10/2/0)
76(25/2/0)
20(4/2/0)
12(4/0/0)
26(7/2/0)
11-51
11
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