MC68030FE16C Freescale Semiconductor, MC68030FE16C Datasheet - Page 473
MC68030FE16C
Manufacturer Part Number
MC68030FE16C
Description
IC MPU 32BIT ENHANCED 132-CQFP
Manufacturer
Freescale Semiconductor
Datasheet
1.MC68030FE20C.pdf
(599 pages)
Specifications of MC68030FE16C
Processor Type
M680x0 32-Bit
Speed
166MHz
Voltage
5V
Mounting Type
Surface Mount
Package / Case
132-CQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Features
-
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC68030FE16C
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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11
11-10
INSTRUCTION
CONTROLLER
SEQUENCER
EXECUTION
ACTIVITY
COUNT
TIME
8US
BUS
CLK
CLK
Comparing the two alignments, the execution time of the MOVE instruction
of nine clocks. Referring to the table in 11.6.6 MOVE Instruction and the table
which has an average no-cache-case time of seven clocks.
The average no-cache-case timing rather than the maximum no-cache-case
timing gives a closer approximation of the actual timing of an instruction
stream in many cases. The total execution time of the two instructions in the
Figure 11-5 shows processor activity for odd alignment. The instruction stream
is positioned in 32-bit memory as:
is eight clocks for even alignment and 10 clocks for odd alignment, an average
in 11.6.1 Fetch Effective Address (fea), the average no-cache-case time is
2 + 7 = 9 clocks. A similar calculation can be made of the CMPI instruction,
previous example is 16 clocks for both even and odd alignment. Adding the
A d d r e s s
1
2
n + 1 2
n
n + 4
n + 8
Figure 11-5. Processor Activity - - Odd Alignment
3
4
MC68030 USER'S MANUAL
LEGEND:
5
MOVE.L (d16,An.Dn),Dn
#(data).W,(d16,An}
EA Ext
CMPI
6
d16
• . .
7
8
F - q
# ( d a t a . W )
10
M OV E
d16
9
• • •
11
PREFETCH
CALCULATE AND FETCH
n + 12
12
CMPI.W #(data).W,(d16,An)
SOURCE EA
FOR CMPI
13
READ FROM
(d16,An)
14
MOTOROLA
15
PREFETCH
PERFORM
n + 16
CMPI
16
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