MC68020FE16E Freescale Semiconductor, MC68020FE16E Datasheet - Page 63
MC68020FE16E
Manufacturer Part Number
MC68020FE16E
Description
IC MICROPROCESSOR 32BIT 132CQFP
Manufacturer
Freescale Semiconductor
Datasheet
1.MC68020EH16E.pdf
(306 pages)
Specifications of MC68020FE16E
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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Manufacturer
Quantity
Price
Company:
Part Number:
MC68020FE16E
Manufacturer:
MOTOROLA
Quantity:
1
Company:
Part Number:
MC68020FE16E
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
Part Number:
MC68020FE16E
Manufacturer:
MOTOROLA/摩托罗拉
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20 000
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Figures 5-12 and 5-13 show a word transfer (write) to an odd address in word-organized
memory. This example is similar to the one shown in Figures 5-9 and 5-10 except that the
operand is word sized and the transfer requires only two bus cycles. Figure 5-14 shows
the equivalent operation for a data read cycle.
5-16
31
Figure 5-12. Misaligned Word Operand Write to Word Port Example
OP0
15
D31
OP2
Figure 5-11. Misaligned Long-Word Operand Read
MSB
OP3
XXX
D31
WORD OPERAND
WORD MEMORY
LONG-WORD OPERAND (REGISTER)
DATA BUS
OP1
Freescale Semiconductor, Inc.
MSB
XXX
OP1
OP3
For More Information On This Product,
WORD MEMORY
DATA BUS
OP2
LSB
XXX
OP3
from Word Port Example
M68020 USER’S MANUAL
Go to: www.freescale.com
D16
OP0
OP2
XXX
LSB
OP2
0
D16
SIZ1 SIZ0 A2
1
0
MC68020/EC020
0
1
SIZ1 SIZ0 A2
OP3
0
0
0
1
0
MC68020/EC020
A1
0
1
0
1
1
0
A0
1
0
0
0
1
A1
0
1
0
MEMORY CONTROL
DSACK1
A0
1
0
0
L
L
DSACK0
MEMORY CONTROL
DSACK1
H
H
L
L
L
DSACK0
MOTOROLA
H
H
H
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