MC68EC040RC25 Freescale Semiconductor, MC68EC040RC25 Datasheet - Page 165
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MC68EC040RC25
Manufacturer Part Number
MC68EC040RC25
Description
Manufacturer
Freescale Semiconductor
Datasheet
1.MC68EC040RC25.pdf
(442 pages)
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC68EC040RC25
Manufacturer:
MOT
Quantity:
1 259
Company:
Part Number:
MC68EC040RC25A
Manufacturer:
MOT
Quantity:
1
Part Number:
MC68EC040RC25A
Manufacturer:
MOTOROLA/摩托罗拉
Quantity:
20 000
- Current page: 165 of 442
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MOTOROLA
WORDS TRANSFERRED
UNTIL FOUR LONG
1) SET R/W TO WRITE
2) DRIVE ADDRESS ON A31–A0
3) DRIVE USER PAGE ATTRIBUTES ON UPA1, UPA0
4) DRIVE SIZE ON SIZ1, SIZ0 (LINE)
5) DRIVE TRANSFER TYPE ON TT1, TT0
6) DRIVE TRANSFER MODIFIER ON TM2–TM0
7) CIOUT BECOMES VALID
8) ASSERT TS FOR ONE CLOCK
9) ASSERT TIP
1) DRIVE DATA ON D31–D0
2) SAMPLE TA
3) SAMPLE TBI AND TCI (FOR FIRST TRANSFER)
1) REMOVE DATA FROM D31–D0
2) NEGATE TIP (IF REQUIRED)
START NEXT CYCLE
ADDRESS DEVICE
SUPPLY DATA
END OF BURST
PROCESSOR
Figure 7-16. Line Write Transfer Flowchart
Freescale Semiconductor, Inc.
For More Information On This Product,
WHEN FOUR LONG
WORDS TRANSFERRED
Go to: www.freescale.com
M68040 USER’S MANUAL
1) DECODE ADDRESS (FIRST TRANSFER ONLY)
2) LATCH DATA ON D31–D0
3) ASSERT TA
1) NEGATE TA (IF NECESSARY)
2) INCREMENT ADDRESS BITS A3, A2 (IF
NECESSARY)
EXTERNAL DEVICE
TERMINATE CYCLE
ACCEPT DATA
WORDS TRANSFERRED
UNTIL FOUR LONG
7- 23
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