MC68EC040RC20A Freescale Semiconductor, MC68EC040RC20A Datasheet - Page 160
MC68EC040RC20A
Manufacturer Part Number
MC68EC040RC20A
Description
IC MPU 32BIT 20MHZ 179-PGA
Manufacturer
Freescale Semiconductor
Datasheet
1.MC68EC040FE33A.pdf
(442 pages)
Specifications of MC68EC040RC20A
Processor Type
M680x0 32-Bit
Speed
20MHz
Voltage
5V
Mounting Type
Surface Mount
Package / Case
179-PGA
Lead Free Status / RoHS Status
Contains lead / RoHS Compliant
Features
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7-18
UNTIL THREE LONG WORDS
TRANSFERRED
1) SET R/W TO READ
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) LATCH DATA
2) SAMPLE TBI AND TCI
3) RECOGNIZE TBI ASSERTED
1) INCREMENT ADDRESS BITS A3, A2 AND DRIVE
2) DRIVE SIZE ON SIZ1, SIZ0 (LONG WORD)
3) ASSERT TRANSFER START (TS) FOR ONE CLOCK
1) LATCH DATA
1) NEGATE TIP (IF REQUIRED)
Figure 7-12. Burst-Inhibited Line Read Transfer Flowchart
NEW ADDRESS ON A31–A0
WHEN THREE LONG WORDS
END OF LINE TRANSFER
START NEXT CYCLE
ADDRESS DEVICE
ADDRESS DEVICE
ACQUIRE DATA
ACQUIRE DATA
TRANSFERRED
PROCESSOR
Freescale Semiconductor, Inc.
For More Information On This Product,
M68040 USER’S MANUAL
Go to: www.freescale.com
1) DECODE ADDRESS
2) PLACE DATA ON D31–D0
3) ASSERT TA AND TBI
1) REMOVE DATA FROM D31–D0
2) NEGATE TA
1) DECODE ADDRESS
2) PLACE DATA ON D31–D0
3) ASSERT TA
1) REMOVE DATA FROM D31–D0
2) NEGATE TA
TERMINATE CYCLE
TERMINATE CYCLE
EXTERNAL DEVICE
PRESENT DATA
PRESENT DATA
MOTOROLA
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