mc68ec040v Freescale Semiconductor, Inc, mc68ec040v Datasheet - Page 165

• Manufacturer Part Number: mc68ec040v
• Description: M68040 User Manual
• Manufacturer: Freescale Semiconductor, Inc

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
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